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<document id="7616E8B9FD926803F5CF973459821B10" ID-CLB-Dataset="276135" ID-DOI="10.1080/00222933.2011.614424" ID-GBIF-Dataset="54691613-8937-4325-963e-9e8950d7f20e" ID-ISSN="1464-5262" ID-Zenodo-Dep="5204787" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629067655928" checkinUser="felipe" docAuthor="Ariyama, Hiroyuki &amp; Fujiwara, Yoshihiro" docDate="2011" docId="D7498784FFF2FFCE54B8FD52FC74FBC4" docLanguage="en" docName="JNatHist.45.45-46.2795-2814.pdf" docOrigin="Journal of Natural History 45 (45 - 46)" docSource="http://dx.doi.org/10.1080/00222933.2011.614424" docStyle="DocumentStyle:DE8A86AD4006EFA56F95B2AAEFBF2813.5:JNatHist.2008-2012.journal_article.2cover" docStyleId="DE8A86AD4006EFA56F95B2AAEFBF2813" docStyleName="JNatHist.2008-2012.journal_article.2cover" docStyleVersion="5" docTitle="Ericthonius megalopus" docType="treatment" docVersion="4" lastPageNumber="2811" masterDocId="2B70FFFCFFF1FFDC5516FFDAFFA6FFE8" masterDocTitle="First record of Ericthonius megalopus (Sars, 1879) from bathyal Sagami Bay, central Japan, including synonymization of Ericthonius tolli Brüggen, 1909 with Ericthonius megalopus (Crustacea: Amphipoda: Ischyroceridae)" masterLastPageNumber="2814" masterPageNumber="2795" pageNumber="2796" updateTime="1699086346132" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="FAF6E4843DEFAEAA53941E1BE8135EE4">First record of Ericthonius megalopus (Sars, 1879) from bathyal Sagami Bay, central Japan, including synonymization of Ericthonius tolli Brüggen, 1909 with Ericthonius megalopus (Crustacea: Amphipoda: Ischyroceridae)</mods:title>
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<mods:namePart id="0EF3706856F34197411782089EB66DA1">Ariyama, Hiroyuki</mods:namePart>
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<mods:title id="D6D00784F59DEAB6E9C372A1F85E538F">Journal of Natural History</mods:title>
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<mods:date id="0A41EED4929BADBF1E6D3C853DAF74B9">2011</mods:date>
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<mods:number id="2FA69E02FE61440BFEFABCB73FF6D268">2011-12-31</mods:number>
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<mods:number id="5019682988BA6E911BE137EF92B7305C">45 - 46</mods:number>
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<taxonomicName id="98E04D11FFF2FFDF54B8FD52FC97FD48" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[430,817,648,672]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="2796" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFF2FFDF54B8FD52FD00FD48" bold="true" box="[430,678,648,672]" italics="true" pageId="3" pageNumber="2796">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFF2FFDF57A3FD52FC8EFD48" author="Sars GO" box="[693,808,648,672]" pageId="3" pageNumber="2796" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
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(
<figureCitation id="C7DB2A17FFF2FFDF5730FD72FD1EFD28" box="[550,696,680,704]" captionStart-0="Figure 1" captionStart-1="Figure 2" captionStart-10="Figure 11" captionStart-11="Figure 12" captionStart-2="Figure 3" captionStart-3="Figure 4" captionStart-4="Figure 5" captionStart-5="Figure 6" captionStart-6="Figure 7" captionStart-7="Figure 8" captionStart-8="Figure 9" captionStart-9="Figure 10" captionStartId-0="4.[211,278,729,751]" captionStartId-1="5.[143,210,700,722]" captionStartId-10="16.[211,278,1654,1676]" captionStartId-11="17.[143,210,1604,1626]" captionStartId-2="6.[211,278,1506,1528]" captionStartId-3="7.[143,210,1421,1443]" captionStartId-4="9.[143,210,1549,1571]" captionStartId-5="10.[211,278,1557,1579]" captionStartId-6="12.[211,278,1554,1576]" captionStartId-7="13.[143,210,1549,1571]" captionStartId-8="14.[211,278,1565,1587]" captionStartId-9="15.[143,210,1482,1504]" captionTargetBox-0="[211,1171,168,696]" captionTargetBox-1="[144,1103,170,666]" captionTargetBox-10="[211,1171,968,1621]" captionTargetBox-11="[145,1102,589,1571]" captionTargetBox-2="[238,1146,161,1464]" captionTargetBox-3="[143,1103,162,1388]" captionTargetBox-4="[146,1103,162,1516]" captionTargetBox-5="[213,1170,162,1524]" captionTargetBox-6="[213,1170,163,1522]" captionTargetBox-7="[143,1103,161,1515]" captionTargetBox-8="[212,1170,162,1532]" captionTargetBox-9="[145,1102,163,1450]" captionTargetId-0="figure-5@4.[211,1171,168,696]" captionTargetId-1="figure-6@5.[143,1103,169,667]" captionTargetId-10="figure-317@16.[211,1171,968,1621]" captionTargetId-11="figure-158@17.[145,1102,589,1571]" captionTargetId-2="figure-5@6.[238,1146,161,1473]" captionTargetId-3="figure-6@7.[143,1103,162,1388]" captionTargetId-4="figure-6@9.[143,1103,162,1516]" captionTargetId-5="figure-5@10.[213,1170,162,1524]" captionTargetId-6="figure-5@12.[213,1170,163,1522]" captionTargetId-7="figure-6@13.[143,1103,161,1516]" captionTargetId-8="figure-5@14.[211,1171,162,1532]" captionTargetId-9="figure-6@15.[145,1102,162,1450]" captionTargetPageId-0="4" captionTargetPageId-1="5" captionTargetPageId-10="16" captionTargetPageId-11="17" captionTargetPageId-2="6" captionTargetPageId-3="7" captionTargetPageId-4="9" captionTargetPageId-5="10" captionTargetPageId-6="12" captionTargetPageId-7="13" captionTargetPageId-8="14" captionTargetPageId-9="15" captionText-0="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." captionText-1="Figure 2. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. Lateral view, right gnathopod 2 superimposed reversely. Scale: 1 mm." captionText-10="Figure 11. Relationship between body length and width of basis in pereopod 4 of Ericthonius megalopus (Sars, 1879). Both sexes included." captionText-11="Figure 12. World distribution of Ericthonius megalopus (Sars, 1879). Circles indicate localities in the records as Ericthonius megalopus; triangles indicate localities in the records as Ericthonius tolli; star indicates Sagami Bay (present record). “T” indicates the type locality." captionText-2="Figure 3. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Right antenna 1, medial view; (A1) accessory flagellum of right antenna 1, medial view; (B) left antenna 2, lateral view; (C) upper lip, anteroventral view; (D) left mandible, medial view; (D1) incisor and lacinia mobilis of left mandible, medial view; (E) right mandible, medial view; (E1) incisor and lacinia mobilis of right mandible, medial view; (F) lower lip, ventral view; (G) left maxilla 1, ventral view; (G1) apical part of left maxilla 1, ventral view; (H) right maxilla 2, ventral view; (I) right maxilliped, ventral view; (I1) palp article 4 and spine of left maxilliped, ventral view, setae omitted; (I2) apical part of inner plate of right maxilliped, ventral view, slender setae omitted. Scales: 0.1 mm." captionText-3="Figure 4. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Left gnathopod 1, lateral view; (B) right gnathopod 2, lateral view; (B1) posterior margin of propodus of right gnathopod 2, medial view, setae omitted; (C–E) left pereopods 3–5, lateral views; (F) basis–dactylus of left pereopod 6, lateral view; (F1) coxa and gill of left pereopod 6, lateral view. Scale: 0.1 mm." captionText-4="Figure 5. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. (A–G) male, 11.5 mm, OMNH-Ar 8541; (H) female, 11.8 mm, OMNH-Ar 8542. (A) Basis–dactylus of left pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B–D) left pleopods 1–3, posterior views; (E, F) left uropods 1, 2, dorsal views; (G) uropods 3 and telson, dorsal view; (H) left gnathopod 2, lateral view, oostegite omitted; (H1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted. Scales: 0.1 mm." captionText-5="Figure 6. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, female, 11.8 mm, OMNH-Ar 8542. (A) Left gnathopod 1, lateral view; (B–F) left pereopods 3–7, lateral views, oostegites on pereopods 3–5 omitted. Scale: 0.1 mm." captionText-6="Figure 7. Ericthonius megalopus (Sars, 1879), Norwegian Sea, male, 9.0 mm, ZMUC-CRU- 20157. (A, B) Left gnathopods 1, 2, lateral views; (B1) posterior margin of propodus of left gnathopod 2, lateral view, setae omitted; (C, D) left pereopods 3, 4, lateral views; (E) coxa, gill and basis of left pereopod 5, lateral view; (F) left coxa, gill and right basis of pereopod 6, lateral view; (G) coxa and basis of left pereopod 7, lateral view. Scale: 0.1 mm." captionText-7="Figure 8. Ericthonius megalopus (Sars, 1879), Norwegian Sea, ovigerous female, 9.6 mm, ZMUC-CRU-20157. (A, B) Left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (B1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (C–F) left pereopods 3–6, lateral views, oostegites on pereopods 3–5 omitted; (G) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." captionText-8="Figure 9. Ericthonius megalopus (Sars, 1879) (previously identified as Ericthonius tolli), Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162. (A, B) Left gnathopods 1, 2, lateral views; (B1) posterior margin of propodus of left gnathopod 2, lateral view, setae omitted; (C, D) left pereopods 3, 4, lateral views; (E) basis–dactylus of left pereopod 5, lateral view; (E1) coxa and gill of left pereopod 5, lateral view; (F) basis–dactylus of right pereopod 6, lateral view; (F1) coxa of left pereopod 6, lateral view, gill lost. Scale: 0.1 mm." captionText-9="Figure 10. Ericthonius megalopus (Sars, 1879) (previously identified as Ericthonius tolli). (A) Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162; (B–H) Baffin Bay, ovigerous female, 11.2 mm, ZMUC-CRU-20161. (A) Basis–dactylus of right pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B, C) left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (C1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (D) coxa and gill of left pereopod 3, lateral view, oostegite omitted; (E, F) left pereopods 4, 5, lateral views, oostegites omitted; (G) coxa and gill of left pereopod 6, lateral view; (H) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi-0="http://doi.org/10.5281/zenodo.5204789" figureDoi-1="http://doi.org/10.5281/zenodo.5204791" figureDoi-10="http://doi.org/10.5281/zenodo.5204811" figureDoi-11="http://doi.org/10.5281/zenodo.5204813" figureDoi-2="http://doi.org/10.5281/zenodo.5204793" figureDoi-3="http://doi.org/10.5281/zenodo.5204795" figureDoi-4="http://doi.org/10.5281/zenodo.5204797" figureDoi-5="http://doi.org/10.5281/zenodo.5204799" figureDoi-6="http://doi.org/10.5281/zenodo.5204801" figureDoi-7="http://doi.org/10.5281/zenodo.5204804" figureDoi-8="http://doi.org/10.5281/zenodo.5204807" figureDoi-9="http://doi.org/10.5281/zenodo.5204809" httpUri-0="https://zenodo.org/record/5204789/files/figure.png" httpUri-1="https://zenodo.org/record/5204791/files/figure.png" httpUri-10="https://zenodo.org/record/5204811/files/figure.png" httpUri-11="https://zenodo.org/record/5204813/files/figure.png" httpUri-2="https://zenodo.org/record/5204793/files/figure.png" httpUri-3="https://zenodo.org/record/5204795/files/figure.png" httpUri-4="https://zenodo.org/record/5204797/files/figure.png" httpUri-5="https://zenodo.org/record/5204799/files/figure.png" httpUri-6="https://zenodo.org/record/5204801/files/figure.png" httpUri-7="https://zenodo.org/record/5204804/files/figure.png" httpUri-8="https://zenodo.org/record/5204807/files/figure.png" httpUri-9="https://zenodo.org/record/5204809/files/figure.png" pageId="3" pageNumber="2796">Figures 1–12</figureCitation>
)
</paragraph>
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<paragraph id="5F5F3692FFF2FFDF5599FD32FDEEFD17" blockId="3.[143,584,743,768]" box="[143,584,743,768]" pageId="3" pageNumber="2796">
<treatmentCitationGroup id="7FF011BCFFF2FFDF5599FD32FDEEFD17" box="[143,584,743,768]" pageId="3" pageNumber="2796">
<treatmentCitation id="DE411083FFF2FFDF5599FD32FDE2FD17" author="Sars GO" box="[143,580,743,768]" page="462" pageId="3" pageNumber="2796" year="1879">
<taxonomicName id="98E04D11FFF2FFDF5599FD32FDE2FD17" authority="Sars, 1879: 461 - 462" authorityName="Sars" authorityPageNumber="461 - 462" authorityYear="1879" box="[143,580,743,768]" class="Malacostraca" family="Ischyroceridae" genus="Cerapus" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="2796" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFF2FFDF5599FD32FEC5FCE8" box="[143,355,744,768]" italics="true" pageId="3" pageNumber="2796">Cerapus megalopus</emphasis>
<bibRefCitation id="3B714B63FFF2FFDF547CFD3DFDE2FD17" author="Sars GO" box="[362,580,743,767]" pageId="3" pageNumber="2796" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879:461–462</bibRefCitation>
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.
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</paragraph>
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<treatmentCitationGroup id="7FF011BCFFF2FFDF5599FCCDFF7FFC87" pageId="3" pageNumber="2796">
<treatmentCitation id="DE411083FFF2FFDF5599FCCDFDCBFCC7" author="Sars GO" box="[143,621,791,815]" page="212" pageId="3" pageNumber="2796" year="1885">
<taxonomicName id="98E04D11FFF2FFDF5599FCCDFDCBFCC7" authority=": Sars, 1885: 210 - 212" authorityName=": Sars" authorityPageNumber="210 - 212" authorityYear="1885" box="[143,621,791,815]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="2796" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFF2FFDF5599FCCDFE21FCC7" box="[143,391,791,815]" italics="true" pageId="3" pageNumber="2796">Ericthonius megalopus</emphasis>
:
<bibRefCitation id="3B714B63FFF2FFDF5482FCCDFDCBFCC7" author="Sars GO" box="[404,621,791,815]" pageId="3" pageNumber="2796" pagination="1 - 280" refId="ref7250" refString="Sars GO. 1885. Zoology. Crustacea, I. Norwegian North-Atlantic Expedition 1876 - 1878 6: 1 - 280, pls. 1 - 21." type="journal article" year="1885">Sars, 1885:210–212</bibRefCitation>
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, plate 17, figure 4;
<treatmentCitation id="DE411083FFF2FFDF5629FCCDFBEDFCC7" author="Stebbing TRR" box="[831,1099,791,815]" page="673" pageId="3" pageNumber="2796" year="1906">
<bibRefCitation id="3B714B63FFF2FFDF5629FCCDFBEDFCC7" author="Stebbing TRR" box="[831,1099,791,815]" pageId="3" pageNumber="2796" pagination="1 - 806" refId="ref7375" refString="Stebbing TRR. 1906. Amphipoda I. Gammaridea. Das Tierreich 21: 1 - 806." type="journal article" year="1906">Stebbing, 1906:673–674</bibRefCitation>
</treatmentCitation>
;
<treatmentCitation id="DE411083FFF2FFDF5599FCEDFE1FFCA7" author="Gurjanova EF" box="[143,441,823,847]" page="949" pageId="3" pageNumber="2796" year="1951">
<bibRefCitation id="3B714B63FFF2FFDF5599FCEDFE1FFCA7" author="Gurjanova EF" box="[143,441,823,847]" pageId="3" pageNumber="2796" refId="ref6474" refString="Gurjanova EF. 1951. Amphipods of the Seas of the USSR and Adjacent Waters (Amphipoda- Gammaridea) (Identification of Fauna USSR Volume 41). Moscow / Leningrad: Akademia Nauk SSSR. 1031 pp. (in Russian)." type="book" year="1951">Gurjanova, 1951:949–950</bibRefCitation>
</treatmentCitation>
, figure 660;
<treatmentCitation id="DE411083FFF2FFDF5747FCE2FC53FCA7" author="Myers AA &amp; McGrath D" box="[593,1013,823,848]" page="397" pageId="3" pageNumber="2796" year="1984">
<bibRefCitation id="3B714B63FFF2FFDF5747FCE2FC53FCA7" author="Myers AA &amp; McGrath D" box="[593,1013,823,848]" pageId="3" pageNumber="2796" pagination="379 - 400" refId="ref7031" refString="Myers AA, McGrath D. 1984. A revision of the north-east Atlantic species of Ericthonius (Crustacea: Amphipoda). J Mar Biol Assoc UK. 64: 379 - 400." type="journal article" year="1984">Myers and McGrath, 1984:397–398</bibRefCitation>
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, figures 12–13.
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</paragraph>
<paragraph id="5F5F3692FFF2FFDF5599FC5DFE59FC57" blockId="3.[143,1103,903,959]" pageId="3" pageNumber="2796">
<treatmentCitationGroup id="7FF011BCFFF2FFDF5599FC5DFE59FC57" pageId="3" pageNumber="2796">
<treatmentCitation id="DE411083FFF2FFDF5599FC5DFDF6FC77" author="Bruggen E" box="[143,592,903,928]" page="42" pageId="3" pageNumber="2796" year="1909">
<taxonomicName id="98E04D11FFF2FFDF5599FC5DFDF6FC77" ID-CoL="6GNZR" authority="Bruggen, 1909: 41 - 42" authorityName="Bruggen" authorityPageNumber="41 - 42" authorityYear="1909" box="[143,592,903,928]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="2796" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFF2FFDF5599FC5DFEEFFC77" box="[143,329,903,927]" italics="true" pageId="3" pageNumber="2796">Ericthonius tolli</emphasis>
<bibRefCitation id="3B714B63FFF2FFDF544FFC52FDF6FC77" author="Bruggen E" box="[345,592,903,928]" pageId="3" pageNumber="2796" pagination="1 - 56" refId="ref6089" refString="Bruggen E. von der 1909. Beitrage zur Kenntnis der Amphipoden-Fauna der russischen Arctis. Memoires de l'Academie Imperiale des Sciences de St. - Petersbourg, 8 e Serie, Classe Physico-Mathematique 18 (16): 1 - 56, pls. 1 - 3." type="journal article" year="1909">Brüggen, 1909:41–42</bibRefCitation>
</taxonomicName>
</treatmentCitation>
, plate 1, figure 6, plate 3, figures 29–34;
<treatmentCitation id="DE411083FFF2FFDF5599FC7DFED8FC57" author="Gurjanova EF" box="[143,382,935,959]" page="952" pageId="3" pageNumber="2796" year="1951">
<bibRefCitation id="3B714B63FFF2FFDF5599FC7DFED8FC57" author="Gurjanova EF" box="[143,382,935,959]" pageId="3" pageNumber="2796" refId="ref6474" refString="Gurjanova EF. 1951. Amphipods of the Seas of the USSR and Adjacent Waters (Amphipoda- Gammaridea) (Identification of Fauna USSR Volume 41). Moscow / Leningrad: Akademia Nauk SSSR. 1031 pp. (in Russian)." type="book" year="1951">Gurjanova, 1951:952</bibRefCitation>
</treatmentCitation>
, figure 663.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="17FA6519FFF2FFCE5599FBD9FC74FBC4" lastPageId="18" lastPageNumber="2811" pageId="3" pageNumber="2796" type="materials_examined">
<paragraph id="5F5F3692FFF2FFDF5599FBD9FEC7FBF3" blockId="3.[143,353,1027,1051]" box="[143,353,1027,1051]" pageId="3" pageNumber="2796">
<emphasis id="6D94EA80FFF2FFDF5599FBD9FEC7FBF3" box="[143,353,1027,1051]" italics="true" pageId="3" pageNumber="2796">Material examined</emphasis>
</paragraph>
<paragraph id="5F5F3692FFF2FFDF5599FBF1FCC2FB4A" blockId="3.[143,1104,1067,1186]" pageId="3" pageNumber="2796">
<emphasis id="6D94EA80FFF2FFDF5599FBF1FE87FBAB" box="[143,289,1067,1091]" italics="true" pageId="3" pageNumber="2796">Sagami Bay,</emphasis>
<materialsCitation id="EF883CCFFFF2FFDF5438FBF6FCF9FB4A" ID-GBIF-Occurrence="4434897302" collectingDate="2007-12-09" country="Japan" elevation="1456" latitude="34.98778" location="Dissected" longLatPrecision="1" longitude="139.3063" pageId="3" pageNumber="2796" specimenCount="1" specimenCount-male="1">
<emphasis id="6D94EA80FFF2FFDF5438FBF6FEC9FBAB" box="[302,367,1068,1091]" italics="true" pageId="3" pageNumber="2796">
<collectingCountry id="27F77602FFF2FFDF5438FBF6FEC9FBAB" box="[302,367,1068,1091]" name="Japan" pageId="3" pageNumber="2796">Japan</collectingCountry>
</emphasis>
(OMNH-Ar 8541, 8542).
<location id="5A3F6049FFF2FFDF57A7FBF1FC87FBAB" LSID="urn:lsid:plazi:treatment:D7498784FFF2FFCE54B8FD52FC74FBC4:5A3F6049FFF2FFDF57A7FBF1FC87FBAB" box="[689,801,1067,1091]" country="Japan" latitude="34.98778" longLatPrecision="1" longitude="139.3063" name="Dissected" pageId="3" pageNumber="2796">Dissected</location>
:
<specimenCount id="49E6FD1BFFF2FFDF5627FBF6FC38FBAB" box="[817,926,1067,1091]" pageId="3" pageNumber="2796" type="male">one male</specimenCount>
(
<quantity id="98189B77FFF2FFDF56A5FBF1FBB9FBAB" box="[947,1055,1067,1091]" metricMagnitude="-2" metricUnit="m" metricValue="1.15" pageId="3" pageNumber="2796" unit="mm" value="11.5">11.5 mm</quantity>
, six slides and one vial) and one ovigerous female (
<quantity id="98189B77FFF2FFDF57ADFB91FC83FB8B" box="[699,805,1099,1123]" metricMagnitude="-2" metricUnit="m" metricValue="1.18" pageId="3" pageNumber="2796" unit="mm" value="11.8">11.8 mm</quantity>
, five slides and one vial);
<geoCoordinate id="3AD45055FFF2FFDF5599FBB1FE80FB6A" box="[143,294,1127,1155]" degrees="34" direction="north" minutes="59.267" orientation="latitude" pageId="3" pageNumber="2796" precision="1" value="34.98778">
34
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59.267’ N
</geoCoordinate>
,
<geoCoordinate id="3AD45055FFF2FFDF5422FBB1FE73FB6A" box="[308,469,1127,1155]" degrees="139" direction="east" minutes="18.378" orientation="longitude" pageId="3" pageNumber="2796" precision="1" value="139.3063">
139
<superScript id="A8959BDAFFF2FFDF544AFBBDFEC3FB90" attach="none" box="[348,357,1127,1144]" fontSize="7" pageId="3" pageNumber="2796">◦</superScript>
18.378’ E
</geoCoordinate>
,
<quantity id="98189B77FFF2FFDF54F2FBB1FD9AFB6A" box="[484,572,1131,1155]" metricMagnitude="3" metricUnit="m" metricValue="1.456" pageId="3" pageNumber="2796" unit="m" value="1456.0">
<elevation id="D4CDD1A1FFF2FFDF54F2FBB1FD9AFB6A" box="[484,572,1131,1155]" metricMagnitude="3" metricUnit="m" metricValue="1.456" pageId="3" pageNumber="2796" unit="m" value="1456.0">1456 m</elevation>
</quantity>
, 2.4
<superScript id="A8959BDAFFF2FFDF577AFBBDFDD3FB90" attach="right" box="[620,629,1127,1144]" fontSize="7" pageId="3" pageNumber="2796">◦</superScript>
C, inhabiting a single mud tube attached to a small branch (
<figureCitation id="C7DB2A17FFF2FFDF5477FB50FE19FB4A" box="[353,447,1162,1186]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="3" pageNumber="2796">Figure 1</figureCitation>
),
<date id="2B5E1052FFF2FFDF54C1FB50FD3BFB4A" box="[471,669,1162,1186]" pageId="3" pageNumber="2796" value="2007-12-09">
<collectingDate id="3B1AE9BAFFF2FFDF54C1FB50FD3BFB4A" box="[471,669,1162,1186]" pageId="3" pageNumber="2796" value="2007-12-09">9 December 2007</collectingDate>
</date>
, coll. JAMSTEC
</materialsCitation>
.
</paragraph>
<paragraph id="5F5F3692FFF2FFDF5599FB61FF78FA9A" blockId="3.[143,1104,1210,1394]" pageId="3" pageNumber="2796">
<emphasis id="6D94EA80FFF2FFDF5599FB61FE9FFB3B" box="[143,313,1211,1235]" italics="true" pageId="3" pageNumber="2796">Norwegian Sea</emphasis>
(ZMUC-CRU-20157). Dissected:
<specimenCount id="49E6FD1BFFF2FFDF57D2FB61FC8BFB3A" box="[708,813,1210,1234]" pageId="3" pageNumber="2796" type="male">one male</specimenCount>
(9.0 mm, four slides and one vial) and one ovigerous female (
<quantity id="98189B77FFF2FFDF573FFB00FD24FB1A" box="[553,642,1242,1266]" metricMagnitude="-3" metricUnit="m" metricValue="9.6" pageId="3" pageNumber="2796" unit="mm" value="9.6">9.6 mm</quantity>
, three slides and one vial), not dissected:
<specimenCount id="49E6FD1BFFF2FFDF5599FB20FF5AFAFA" box="[143,252,1274,1298]" pageId="3" pageNumber="2796" type="male">five males</specimenCount>
(9.1, 8.7, 8.5, 6.8, 6.0 mm) and
<specimenCount id="49E6FD1BFFF2FFDF5741FB20FD7FFAFA" box="[599,729,1274,1298]" pageId="3" pageNumber="2796" type="female">five females</specimenCount>
(8.1, 6.8, 5.7, 5.5,
<quantity id="98189B77FFF2FFDF56B4FB20FC5FFAFA" box="[930,1017,1274,1298]" metricMagnitude="-3" metricUnit="m" metricValue="4.7" pageId="3" pageNumber="2796" unit="mm" value="4.7">4.7 mm</quantity>
); Ingolf St. 44,
<geoCoordinate id="3AD45055FFF2FFDF55F3FAC0FEEBFADA" box="[229,333,1302,1330]" degrees="61" direction="north" minutes="42" orientation="latitude" pageId="3" pageNumber="2796" precision="925" value="61.7">
61
<superScript id="A8959BDAFFF2FFDF55E9FACCFEAEFACF" attach="left" box="[255,264,1302,1319]" fontSize="7" pageId="3" pageNumber="2796">◦</superScript>
42’ N
</geoCoordinate>
,
<geoCoordinate id="3AD45055FFF2FFDF544BFAC0FE1DFADA" box="[349,443,1302,1330]" degrees="9" direction="west" minutes="36" orientation="longitude" pageId="3" pageNumber="2796" precision="925" value="-9.6">
9
<superScript id="A8959BDAFFF2FFDF547CFACCFED5FACF" attach="none" box="[362,371,1302,1319]" fontSize="7" pageId="3" pageNumber="2796">◦</superScript>
36’ W
</geoCoordinate>
,
<quantity id="98189B77FFF2FFDF54DFFAC0FD84FADA" box="[457,546,1306,1330]" metricMagnitude="3" metricUnit="m" metricValue="1.026" pageId="3" pageNumber="2796" unit="m" value="1026.0">1026 m</quantity>
, 4.8
<superScript id="A8959BDAFFF2FFDF5744FACCFDFDFACF" attach="left" box="[594,603,1302,1319]" fontSize="7" pageId="3" pageNumber="2796">◦</superScript>
C,
<date id="2B5E1052FFF2FFDF5797FAC0FC8AFADA" box="[641,812,1306,1330]" pageId="3" pageNumber="2796" value="1895-08-09">9 August 1895</date>
, identified as
<taxonomicName id="98E04D11FFF2FFDF56C7FAC0FEA4FABA" authorityName=": Sars" authorityYear="1885" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="2796" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFF2FFDF56C7FAC0FEA4FABA" italics="true" pageId="3" pageNumber="2796">Ericthonius megalopus</emphasis>
</taxonomicName>
probably by
<bibRefCitation id="3B714B63FFF2FFDF5489FAE0FD26FABA" author="Stephensen K" box="[415,640,1338,1362]" pageId="3" pageNumber="2796" pagination="1 - 51" refId="ref7555" refString="Stephensen K. 1944 b. Crustacea Malacostraca VIII (Amphipoda IV). Danish Ingolf- Expedition 3 (13): 1 - 51." type="journal article" year="1944">Stephensen (1944b)</bibRefCitation>
, also examined by
<bibRefCitation id="3B714B63FFF2FFDF5676FAE1FF7CFA9A" author="Myers AA &amp; McGrath D" pageId="3" pageNumber="2796" pagination="379 - 400" refId="ref7031" refString="Myers AA, McGrath D. 1984. A revision of the north-east Atlantic species of Ericthonius (Crustacea: Amphipoda). J Mar Biol Assoc UK. 64: 379 - 400." type="journal article" year="1984">Myers and McGrath (1984)</bibRefCitation>
.
</paragraph>
<paragraph id="5F5F3692FFF2FFDF5599FA50FEB0F9EA" blockId="3.[143,1103,1418,1538]" pageId="3" pageNumber="2796">
<emphasis id="6D94EA80FFF2FFDF5599FA50FEB9FA4A" box="[143,287,1418,1442]" italics="true" pageId="3" pageNumber="2796">Arctic Ocean</emphasis>
(ZMUC-CRU-20162).
<materialsCitation id="EF883CCFFFF2FFDF573CFA50FEB4F9EA" ID-GBIF-Occurrence="4434897301" collectorName="E. Bruggen" location="Leningrad" pageId="3" pageNumber="2796" specimenCount="2" specimenCount-male="2" stateProvince="Leningrad">
Dissected:
<specimenCount id="49E6FD1BFFF2FFDF57B2FA50FCAFFA4A" box="[676,777,1418,1442]" pageId="3" pageNumber="2796" type="male">one male</specimenCount>
(
<quantity id="98189B77FFF2FFDF560EFA50FCD6FA49" box="[792,880,1418,1442]" metricMagnitude="-3" metricUnit="m" metricValue="8.3" pageId="3" pageNumber="2796" unit="mm" value="8.3">8.3 mm</quantity>
, four slides and one vial), not dissected:
<specimenCount id="49E6FD1BFFF2FFDF546CFA73FE52FA29" box="[378,500,1449,1473]" pageId="3" pageNumber="2796" type="male">four males</specimenCount>
(10.1, 10.1, 8.6,
<quantity id="98189B77FFF2FFDF57ABFA73FCBCFA29" box="[701,794,1449,1473]" metricMagnitude="-3" metricUnit="m" metricValue="7.2" pageId="3" pageNumber="2796" unit="mm" value="7.2">7.2 mm</quantity>
); Sibir. Polar Sea, Russian Polar-Expedition 1900–1903, Zool. Mus.
<collectingRegion id="9D24F870FFF2FFDF5773FA13FD7BFA09" box="[613,733,1481,1505]" country="Russia" name="Leningrad" pageId="3" pageNumber="2796">Leningrad</collectingRegion>
, identified as
<taxonomicName id="98E04D11FFF2FFDF566CFA10FB8AFA0A" authorityName="Bruggen" authorityYear="1909" box="[890,1068,1482,1506]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="2796" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFF2FFDF566CFA10FB8AFA0A" box="[890,1068,1482,1506]" italics="true" pageId="3" pageNumber="2796">Ericthonius tolli</emphasis>
</taxonomicName>
by
<collectorName id="F2155344FFF2FFDF5599FA30FEB4F9EA" box="[143,274,1514,1538]" pageId="3" pageNumber="2796">E. Brüggen</collectorName>
</materialsCitation>
.
</paragraph>
<paragraph id="5F5F3692FFF2FFDF5599F9C3FD60F979" blockId="3.[143,1104,1561,1681]" pageId="3" pageNumber="2796">
<emphasis id="6D94EA80FFF2FFDF5599F9C3FEAFF9D9" box="[143,265,1561,1585]" italics="true" pageId="3" pageNumber="2796">Baffin Bay</emphasis>
(ZMUC-CRU-20161).
<materialsCitation id="EF883CCFFFF2FFDF570DF9C3FD64F979" ID-GBIF-Occurrence="4434897303" collectingDate="1928-08-16" elevation="85" latitude="76.666664" location="Dissected" longLatPrecision="949" longitude="-76.333336" municipality="Godthaab St." pageId="3" pageNumber="2796" specimenCount="2" specimenCount-female="1" specimenCount-male="1">
<location id="5A3F6049FFF2FFDF570DF9C3FD2DF9D9" LSID="urn:lsid:plazi:treatment:D7498784FFF2FFCE54B8FD52FC74FBC4:5A3F6049FFF2FFDF570DF9C3FD2DF9D9" box="[539,651,1561,1585]" latitude="76.666664" longLatPrecision="949" longitude="-76.333336" municipality="Godthaab St." name="Dissected" pageId="3" pageNumber="2796">Dissected</location>
: one ovigerous female (
<quantity id="98189B77FFF2FFDF5689F9C3FBAEF9D9" box="[927,1032,1561,1585]" metricMagnitude="-2" metricUnit="m" metricValue="1.1199999999999999" pageId="3" pageNumber="2796" unit="mm" value="11.2">11.2 mm</quantity>
, three slides and one vial), not dissected:
<specimenCount id="49E6FD1BFFF2FFDF573AF9E0FD06F9B9" box="[556,672,1593,1617]" pageId="3" pageNumber="2796" type="male">two males</specimenCount>
(9.9,
<quantity id="98189B77FFF2FFDF57FEF9E3FCE4F9B9" box="[744,834,1593,1617]" metricMagnitude="-3" metricUnit="m" metricValue="9.8" pageId="3" pageNumber="2796" unit="mm" value="9.8">9.8 mm</quantity>
) and
<specimenCount id="49E6FD1BFFF2FFDF569FF9E0FBB5F9B9" box="[905,1043,1593,1617]" pageId="3" pageNumber="2796" type="female">two females</specimenCount>
(6.1, 6.0 mm);
<collectingMunicipality id="BF3BACE8FFF2FFDF5417F983FE3BF999" box="[257,413,1625,1649]" pageId="3" pageNumber="2796">Godthaab St.</collectingMunicipality>
114,
<geoCoordinate id="3AD45055FFF2FFDF54F7F983FDEAF999" box="[481,588,1621,1649]" degrees="76" direction="north" minutes="40" orientation="latitude" pageId="3" pageNumber="2796" precision="925" value="76.666664">
76
<superScript id="A8959BDAFFF2FFDF54EDF98FFDA2F98E" attach="left" box="[507,516,1621,1638]" fontSize="7" pageId="3" pageNumber="2796">◦</superScript>
40 N
</geoCoordinate>
,
<geoCoordinate id="3AD45055FFF2FFDF574DF983FD60F999" box="[603,710,1621,1649]" degrees="76" direction="west" minutes="20" orientation="longitude" pageId="3" pageNumber="2796" precision="925" value="-76.333336">
76
<superScript id="A8959BDAFFF2FFDF5763F98FFDD8F98E" attach="left" box="[629,638,1621,1638]" fontSize="7" pageId="3" pageNumber="2796">◦</superScript>
20’ W
</geoCoordinate>
,
<quantity id="98189B77FFF2FFDF57C2F983FCB4F999" box="[724,786,1625,1649]" metricMagnitude="1" metricUnit="m" metricValue="8.5" pageId="3" pageNumber="2796" unit="m" value="85.0">
<elevation id="D4CDD1A1FFF2FFDF57C2F983FCB4F999" box="[724,786,1625,1649]" metricMagnitude="1" metricUnit="m" metricValue="8.5" pageId="3" pageNumber="2796" unit="m" value="85.0">85 m</elevation>
</quantity>
,
<date id="2B5E1052FFF2FFDF5636F983FC7EF999" box="[800,984,1625,1649]" pageId="3" pageNumber="2796" value="1928-08-16">
<collectingDate id="3B1AE9BAFFF2FFDF5636F983FC7EF999" box="[800,984,1625,1649]" pageId="3" pageNumber="2796" value="1928-08-16">16 August 1928</collectingDate>
</date>
, identified as
<taxonomicName id="98E04D11FFF2FFDF55BBF9A3FEF8F979" authorityName="Bruggen" authorityYear="1909" box="[173,350,1657,1681]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="2796" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFF2FFDF55BBF9A3FEF8F979" box="[173,350,1657,1681]" italics="true" pageId="3" pageNumber="2796">Ericthonius tolli</emphasis>
</taxonomicName>
probably by
<bibRefCitation id="3B714B63FFF2FFDF54E7F9A3FD64F979" author="Stephensen K" box="[497,706,1657,1681]" pageId="3" pageNumber="2796" pagination="1 - 88" refId="ref7479" refString="Stephensen K. 1933. Amphipoda. The Godthaab Expedition 1928. Meddelelser om Gronland 79 (7): 1 - 88." type="journal article" year="1933">Stephensen (1933)</bibRefCitation>
</materialsCitation>
.
</paragraph>
<caption id="0B9F661AFFF5FFD855C5FD03FED6FCC1" ID-DOI="http://doi.org/10.5281/zenodo.5204789" ID-Zenodo-Dep="5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="4" pageNumber="2797" startId="4.[211,278,729,751]" targetBox="[211,1171,168,696]" targetPageId="4">
<paragraph id="5F5F3692FFF5FFD855C5FD03FED6FCC1" blockId="4.[211,1171,729,809]" pageId="4" pageNumber="2797">
Figure 1.
<taxonomicName id="98E04D11FFF5FFD8542AFD03FD38FD07" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[316,670,729,751]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="4" pageNumber="2797" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFF5FFD8542AFD03FDBAFD07" box="[316,540,729,751]" italics="true" pageId="4" pageNumber="2797">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFF5FFD8573DFD03FD31FD07" author="Sars GO" box="[555,663,729,751]" pageId="4" pageNumber="2797" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
, Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara.
</paragraph>
</caption>
<paragraph id="5F5F3692FFF5FFD855C5FC5CFC27FC76" blockId="4.[211,897,902,926]" box="[211,897,902,926]" pageId="4" pageNumber="2797">
<emphasis id="6D94EA80FFF5FFD855C5FC5CFC27FC76" box="[211,897,902,926]" italics="true" pageId="4" pageNumber="2797">
Colouration in life (male and female from Sagami Bay,
<collectingCountry id="27F77602FFF5FFD85625FC5CFCDFFC76" box="[819,889,902,926]" name="Japan" pageId="4" pageNumber="2797">Japan</collectingCountry>
)
</emphasis>
</paragraph>
<paragraph id="5F5F3692FFF5FFD855C5FC74FDDBFBCD" blockId="4.[211,1172,941,1062]" pageId="4" pageNumber="2797">Eyes dark red; head, pereonites 1 and 2 and posterior parts of pereonites 3–7 pale brown; articles 1 and 2 of antenna 2, mouthparts and carpus–dactylus of gnathopod 1 orange; coxa–merus of gnathopod 1 and coxa, carpus–dactylus of gnathopod 2 pale brown; eggs purple; other parts white.</paragraph>
<paragraph id="5F5F3692FFF5FFD855C5FBB1FC98FB6A" blockId="4.[211,830,1130,1154]" box="[211,830,1130,1154]" pageId="4" pageNumber="2797">
<emphasis id="6D94EA80FFF5FFD855C5FBB1FC98FB6A" box="[211,830,1130,1154]" italics="true" pageId="4" pageNumber="2797">
Description of male (
<quantity id="98189B77FFF5FFD854ACFBB0FDBBFB6A" box="[442,541,1130,1154]" metricMagnitude="-2" metricUnit="m" metricValue="1.15" pageId="4" pageNumber="2797" unit="mm" value="11.5">11.5 mm</quantity>
from Sagami Bay,
<collectingCountry id="27F77602FFF5FFD857E6FBB0FC90FB6A" box="[752,822,1130,1154]" name="Japan" pageId="4" pageNumber="2797">Japan</collectingCountry>
)
</emphasis>
</paragraph>
<paragraph id="5F5F3692FFF5FFD855C5FB48FCC5FB22" blockId="4.[211,1172,1170,1640]" pageId="4" pageNumber="2797">
Body (
<figureCitation id="C7DB2A17FFF5FFD85408FB48FE26FB42" box="[286,384,1170,1194]" captionStart="Figure 2" captionStartId="5.[143,210,700,722]" captionTargetBox="[144,1103,170,666]" captionTargetId="figure-6@5.[143,1103,169,667]" captionTargetPageId="5" captionText="Figure 2. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. Lateral view, right gnathopod 2 superimposed reversely. Scale: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204791" httpUri="https://zenodo.org/record/5204791/files/figure.png" pageId="4" pageNumber="2797">Figure 2</figureCitation>
) slender, relatively depressed dorsoventrally. Rostrum short; antennal sinus deep. Eyes large, width about 0.45 times head length.
</paragraph>
<paragraph id="5F5F3692FFF5FFD855E8FB08FB21FA21" blockId="4.[211,1172,1170,1640]" pageId="4" pageNumber="2797">
Antenna 1 (
<figureCitation id="C7DB2A17FFF5FFD85469FB08FDB1FB02" box="[383,535,1234,1258]" captionStart="Figure 3" captionStartId="6.[211,278,1506,1528]" captionTargetBox="[238,1146,161,1464]" captionTargetId="figure-5@6.[238,1146,161,1473]" captionTargetPageId="6" captionText="Figure 3. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Right antenna 1, medial view; (A1) accessory flagellum of right antenna 1, medial view; (B) left antenna 2, lateral view; (C) upper lip, anteroventral view; (D) left mandible, medial view; (D1) incisor and lacinia mobilis of left mandible, medial view; (E) right mandible, medial view; (E1) incisor and lacinia mobilis of right mandible, medial view; (F) lower lip, ventral view; (G) left maxilla 1, ventral view; (G1) apical part of left maxilla 1, ventral view; (H) right maxilla 2, ventral view; (I) right maxilliped, ventral view; (I1) palp article 4 and spine of left maxilliped, ventral view, setae omitted; (I2) apical part of inner plate of right maxilliped, ventral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204793" httpUri="https://zenodo.org/record/5204793/files/figure.png" pageId="4" pageNumber="2797">Figure 3A, A</figureCitation>
<figureCitation id="C7DB2A17FFF5FFD85701FB08FD87FB02" box="[535,545,1234,1258]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="4" pageNumber="2797">1</figureCitation>
) slender, long; ratio of lengths of peduncular articles 1–3 1: 1.6: 1.4, posterodistal corner of peduncular article 1 with one robust seta, posterior margins of peduncular articles with many long setae; accessory flagellum vestigial, with three short setae on tip; flagellum with 14 medium-sized articles and one tiny distal article, posterior surface bearing many long setae. Antenna 2 (
<figureCitation id="C7DB2A17FFF5FFD856B4FA8BFBB1FA81" box="[930,1047,1361,1385]" captionStart="Figure 3" captionStartId="6.[211,278,1506,1528]" captionTargetBox="[238,1146,161,1464]" captionTargetId="figure-5@6.[238,1146,161,1473]" captionTargetPageId="6" captionText="Figure 3. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Right antenna 1, medial view; (A1) accessory flagellum of right antenna 1, medial view; (B) left antenna 2, lateral view; (C) upper lip, anteroventral view; (D) left mandible, medial view; (D1) incisor and lacinia mobilis of left mandible, medial view; (E) right mandible, medial view; (E1) incisor and lacinia mobilis of right mandible, medial view; (F) lower lip, ventral view; (G) left maxilla 1, ventral view; (G1) apical part of left maxilla 1, ventral view; (H) right maxilla 2, ventral view; (I) right maxilliped, ventral view; (I1) palp article 4 and spine of left maxilliped, ventral view, setae omitted; (I2) apical part of inner plate of right maxilliped, ventral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204793" httpUri="https://zenodo.org/record/5204793/files/figure.png" pageId="4" pageNumber="2797">Figure 3B</figureCitation>
) slender, a little shorter than antenna 1; ratio of lengths of peduncular articles 3–5 1: 1.9: 2.0, article 3 with one posterodistal robust seta, posterior margins of articles 3–5 setose; flagellum with 14 medium-sized articles and one tiny distal article, setose posteriorly.
</paragraph>
<paragraph id="5F5F3692FFF5FFD955E8FA0BFC77FBF4" blockId="4.[211,1172,1170,1640]" lastBlockId="5.[143,1104,837,1690]" lastPageId="5" lastPageNumber="2798" pageId="4" pageNumber="2797">
Upper lip (
<figureCitation id="C7DB2A17FFF5FFD85468FA0BFE55FA01" box="[382,499,1489,1513]" captionStart="Figure 3" captionStartId="6.[211,278,1506,1528]" captionTargetBox="[238,1146,161,1464]" captionTargetId="figure-5@6.[238,1146,161,1473]" captionTargetPageId="6" captionText="Figure 3. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Right antenna 1, medial view; (A1) accessory flagellum of right antenna 1, medial view; (B) left antenna 2, lateral view; (C) upper lip, anteroventral view; (D) left mandible, medial view; (D1) incisor and lacinia mobilis of left mandible, medial view; (E) right mandible, medial view; (E1) incisor and lacinia mobilis of right mandible, medial view; (F) lower lip, ventral view; (G) left maxilla 1, ventral view; (G1) apical part of left maxilla 1, ventral view; (H) right maxilla 2, ventral view; (I) right maxilliped, ventral view; (I1) palp article 4 and spine of left maxilliped, ventral view, setae omitted; (I2) apical part of inner plate of right maxilliped, ventral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204793" httpUri="https://zenodo.org/record/5204793/files/figure.png" pageId="4" pageNumber="2797">Figure 3C</figureCitation>
) subrounded, bare; epistome strongly projected anteriorly. Mandible (
<figureCitation id="C7DB2A17FFF5FFD85447FA2AFE55F9E0" box="[337,499,1520,1544]" captionStart="Figure 3" captionStartId="6.[211,278,1506,1528]" captionTargetBox="[238,1146,161,1464]" captionTargetId="figure-5@6.[238,1146,161,1473]" captionTargetPageId="6" captionText="Figure 3. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Right antenna 1, medial view; (A1) accessory flagellum of right antenna 1, medial view; (B) left antenna 2, lateral view; (C) upper lip, anteroventral view; (D) left mandible, medial view; (D1) incisor and lacinia mobilis of left mandible, medial view; (E) right mandible, medial view; (E1) incisor and lacinia mobilis of right mandible, medial view; (F) lower lip, ventral view; (G) left maxilla 1, ventral view; (G1) apical part of left maxilla 1, ventral view; (H) right maxilla 2, ventral view; (I) right maxilliped, ventral view; (I1) palp article 4 and spine of left maxilliped, ventral view, setae omitted; (I2) apical part of inner plate of right maxilliped, ventral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204793" httpUri="https://zenodo.org/record/5204793/files/figure.png" pageId="4" pageNumber="2797">Figure 3D, D</figureCitation>
<figureCitation id="C7DB2A17FFF5FFD854E5FA2AFDE9F9E0" box="[499,591,1520,1544]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="4" pageNumber="2797">1, E, E1</figureCitation>
), left and right similar; incisor and lacinia mobilis each with four cusps; palp strong, article length ratio 1: 3.6: 3.3, ventral surfaces of articles 2 and 3 and distal margin of article 3 heavily setose. Lower lip (
<figureCitation id="C7DB2A17FFF5FFD85119F9EAFB23F9A0" box="[1039,1157,1584,1608]" captionStart="Figure 3" captionStartId="6.[211,278,1506,1528]" captionTargetBox="[238,1146,161,1464]" captionTargetId="figure-5@6.[238,1146,161,1473]" captionTargetPageId="6" captionText="Figure 3. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Right antenna 1, medial view; (A1) accessory flagellum of right antenna 1, medial view; (B) left antenna 2, lateral view; (C) upper lip, anteroventral view; (D) left mandible, medial view; (D1) incisor and lacinia mobilis of left mandible, medial view; (E) right mandible, medial view; (E1) incisor and lacinia mobilis of right mandible, medial view; (F) lower lip, ventral view; (G) left maxilla 1, ventral view; (G1) apical part of left maxilla 1, ventral view; (H) right maxilla 2, ventral view; (I) right maxilliped, ventral view; (I1) palp article 4 and spine of left maxilliped, ventral view, setae omitted; (I2) apical part of inner plate of right maxilliped, ventral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204793" httpUri="https://zenodo.org/record/5204793/files/figure.png" pageId="4" pageNumber="2797">Figure 3F</figureCitation>
), inner and outer lobes covered with minute setae, mandibular lobes short. Maxilla 1 (
<figureCitation id="C7DB2A17FFF4FFD95581FC9FFE91FCB5" box="[151,311,837,861]" captionStart="Figure 3" captionStartId="6.[211,278,1506,1528]" captionTargetBox="[238,1146,161,1464]" captionTargetId="figure-5@6.[238,1146,161,1473]" captionTargetPageId="6" captionText="Figure 3. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Right antenna 1, medial view; (A1) accessory flagellum of right antenna 1, medial view; (B) left antenna 2, lateral view; (C) upper lip, anteroventral view; (D) left mandible, medial view; (D1) incisor and lacinia mobilis of left mandible, medial view; (E) right mandible, medial view; (E1) incisor and lacinia mobilis of right mandible, medial view; (F) lower lip, ventral view; (G) left maxilla 1, ventral view; (G1) apical part of left maxilla 1, ventral view; (H) right maxilla 2, ventral view; (I) right maxilliped, ventral view; (I1) palp article 4 and spine of left maxilliped, ventral view, setae omitted; (I2) apical part of inner plate of right maxilliped, ventral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204793" httpUri="https://zenodo.org/record/5204793/files/figure.png" pageId="5" pageNumber="2798">Figure 3G, G</figureCitation>
<figureCitation id="C7DB2A17FFF4FFD95421FC9FFEE4FCB5" box="[311,322,837,861]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="5" pageNumber="2798">1</figureCitation>
), inner plate ovoid, bluntly pointed, bearing three normal and many thin setae; outer plate bearing 10 robust setae distally; tip of palp article 2 with seven robust and nine normal setae. Maxilla 2 (
<figureCitation id="C7DB2A17FFF4FFD95776FC5FFD7EFC75" box="[608,728,901,925]" captionStart="Figure 3" captionStartId="6.[211,278,1506,1528]" captionTargetBox="[238,1146,161,1464]" captionTargetId="figure-5@6.[238,1146,161,1473]" captionTargetPageId="6" captionText="Figure 3. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Right antenna 1, medial view; (A1) accessory flagellum of right antenna 1, medial view; (B) left antenna 2, lateral view; (C) upper lip, anteroventral view; (D) left mandible, medial view; (D1) incisor and lacinia mobilis of left mandible, medial view; (E) right mandible, medial view; (E1) incisor and lacinia mobilis of right mandible, medial view; (F) lower lip, ventral view; (G) left maxilla 1, ventral view; (G1) apical part of left maxilla 1, ventral view; (H) right maxilla 2, ventral view; (I) right maxilliped, ventral view; (I1) palp article 4 and spine of left maxilliped, ventral view, setae omitted; (I2) apical part of inner plate of right maxilliped, ventral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204793" httpUri="https://zenodo.org/record/5204793/files/figure.png" pageId="5" pageNumber="2798">Figure 3H</figureCitation>
), inner plate setose on apical and medial margins, dorsal surface covered with thin setae; outer plates setose apically. Maxilliped (
<figureCitation id="C7DB2A17FFF4FFD95401FC1EFE3CFC34" box="[279,410,964,988]" captionStart="Figure 3" captionStartId="6.[211,278,1506,1528]" captionTargetBox="[238,1146,161,1464]" captionTargetId="figure-5@6.[238,1146,161,1473]" captionTargetPageId="6" captionText="Figure 3. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Right antenna 1, medial view; (A1) accessory flagellum of right antenna 1, medial view; (B) left antenna 2, lateral view; (C) upper lip, anteroventral view; (D) left mandible, medial view; (D1) incisor and lacinia mobilis of left mandible, medial view; (E) right mandible, medial view; (E1) incisor and lacinia mobilis of right mandible, medial view; (F) lower lip, ventral view; (G) left maxilla 1, ventral view; (G1) apical part of left maxilla 1, ventral view; (H) right maxilla 2, ventral view; (I) right maxilliped, ventral view; (I1) palp article 4 and spine of left maxilliped, ventral view, setae omitted; (I2) apical part of inner plate of right maxilliped, ventral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204793" httpUri="https://zenodo.org/record/5204793/files/figure.png" pageId="5" pageNumber="2798">Figure 3I, I</figureCitation>
<figureCitation id="C7DB2A17FFF4FFD9548CFC1EFE00FC34" box="[410,422,964,988]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="5" pageNumber="2798">1</figureCitation>
, I
<figureCitation id="C7DB2A17FFF4FFD954AAFC1EFE6DFC34" box="[444,459,964,988]" captionStart="Figure 2" captionStartId="5.[143,210,700,722]" captionTargetBox="[144,1103,170,666]" captionTargetId="figure-6@5.[143,1103,169,667]" captionTargetPageId="5" captionText="Figure 2. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. Lateral view, right gnathopod 2 superimposed reversely. Scale: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204791" httpUri="https://zenodo.org/record/5204791/files/figure.png" pageId="5" pageNumber="2798">2</figureCitation>
), inner plate bearing three anterior and one ventral robust setae; outer plate with 14 robust setae (five distal long and nine medial short setae); palp with four articles, article 2 long, article 4 with one long spine apically.
</paragraph>
<caption id="0B9F661AFFF4FFD95599FD66FC20FD07" ID-DOI="http://doi.org/10.5281/zenodo.5204791" ID-Zenodo-Dep="5204791" httpUri="https://zenodo.org/record/5204791/files/figure.png" pageId="5" pageNumber="2798" startId="5.[143,210,700,722]" targetBox="[144,1103,170,666]" targetPageId="5">
<paragraph id="5F5F3692FFF4FFD95599FD66FC20FD07" blockId="5.[143,1103,700,751]" pageId="5" pageNumber="2798">
Figure 2.
<taxonomicName id="98E04D11FFF4FFD955EEFD66FDFDFD3A" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[248,603,700,722]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="5" pageNumber="2798" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFF4FFD955EEFD66FE7EFD3A" box="[248,472,700,722]" italics="true" pageId="5" pageNumber="2798">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFF4FFD954FEFD66FDF2FD3A" author="Sars GO" box="[488,596,700,722]" pageId="5" pageNumber="2798" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
, Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. Lateral view, right gnathopod 2 superimposed reversely. Scale: 1 mm.
</paragraph>
</caption>
<paragraph id="5F5F3692FFF4FFD955ACFBFEFEF5F9D2" blockId="5.[143,1104,837,1690]" pageId="5" pageNumber="2798">
Gnathopod 1 (
<figureCitation id="C7DB2A17FFF4FFD95462FBFEFE52FBD4" box="[372,500,1060,1084]" captionStart="Figure 4" captionStartId="7.[143,210,1421,1443]" captionTargetBox="[143,1103,162,1388]" captionTargetId="figure-6@7.[143,1103,162,1388]" captionTargetPageId="7" captionText="Figure 4. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Left gnathopod 1, lateral view; (B) right gnathopod 2, lateral view; (B1) posterior margin of propodus of right gnathopod 2, medial view, setae omitted; (C–E) left pereopods 3–5, lateral views; (F) basis–dactylus of left pereopod 6, lateral view; (F1) coxa and gill of left pereopod 6, lateral view. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204795" httpUri="https://zenodo.org/record/5204795/files/figure.png" pageId="5" pageNumber="2798">Figure 4A</figureCitation>
) small, subchelate; coxal plate slightly projected anteroventrally, bearing a few short setae; basis slightly curved anteriorly, anterior margin with two short setae, posterior margin with several short setae; ischium setose posterodistally; merus setose posteriorly and distally, posterodistal corner slightly projected; carpus triangular with length of 1.6 times width, posterior margin heavily setose; propodus short, rounded, posterior margin, anterodistal corner and medial surface setose; dactylus curved. Gnathopod 2 (
<figureCitation id="C7DB2A17FFF4FFD95639FB39FC61FB13" box="[815,967,1251,1275]" captionStart="Figure 4" captionStartId="7.[143,210,1421,1443]" captionTargetBox="[143,1103,162,1388]" captionTargetId="figure-6@7.[143,1103,162,1388]" captionTargetPageId="7" captionText="Figure 4. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Left gnathopod 1, lateral view; (B) right gnathopod 2, lateral view; (B1) posterior margin of propodus of right gnathopod 2, medial view, setae omitted; (C–E) left pereopods 3–5, lateral views; (F) basis–dactylus of left pereopod 6, lateral view; (F1) coxa and gill of left pereopod 6, lateral view. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204795" httpUri="https://zenodo.org/record/5204795/files/figure.png" pageId="5" pageNumber="2798">Figure 4B, B</figureCitation>
<figureCitation id="C7DB2A17FFF4FFD956D1FB39FC77FB13" box="[967,977,1251,1275]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="5" pageNumber="2798">1</figureCitation>
) extremely large, carpochelate; coxal plate slightly projected posteriorly, bearing a few short setae anteroventrally, ventral margin without stridulating ridges, gill absent; basis relatively slender, anterior and posterior margins with sparse short setae; ischium rounded anterodistally; merus narrow, extended along posterior margin of carpus, with two short setae on posterodistal corner; carpus greatly enlarged, posterodistal corner bearing large process reaching about 0.67 times propodus length, anterior margin of process without tooth, slightly swollen at mid-length; propodus wide, posterior margin with four roundish projections (two large, one small and one middle), anterodistal corner sparsely setose; dactylus stout, slightly curved posteriorly, posterior margin with many short setae.
</paragraph>
<paragraph id="5F5F3692FFF4FFD455ACF998FB24FCF5" blockId="5.[143,1104,837,1690]" lastBlockId="8.[211,1172,167,1307]" lastPageId="8" lastPageNumber="2801" pageId="5" pageNumber="2798">
Pereopods 3 and 4 (
<figureCitation id="C7DB2A17FFF4FFD954BDF998FDEAF9B2" box="[427,588,1602,1626]" captionStart="Figure 4" captionStartId="7.[143,210,1421,1443]" captionTargetBox="[143,1103,162,1388]" captionTargetId="figure-6@7.[143,1103,162,1388]" captionTargetPageId="7" captionText="Figure 4. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Left gnathopod 1, lateral view; (B) right gnathopod 2, lateral view; (B1) posterior margin of propodus of right gnathopod 2, medial view, setae omitted; (C–E) left pereopods 3–5, lateral views; (F) basis–dactylus of left pereopod 6, lateral view; (F1) coxa and gill of left pereopod 6, lateral view. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204795" httpUri="https://zenodo.org/record/5204795/files/figure.png" pageId="5" pageNumber="2798">Figure 4C, D</figureCitation>
) similar; coxal plates protruded posteriorly, each bearing several ventral setae, gills longish ovoid; bases relatively wide, longish ovoid, anterior margins with several setae, posterodistal corners each with two short setae; meri projected anterodistally; carpi and propodi with several setae on anterodistal corners; dactyli narrow, almost straight. Pereopod 5 (
<figureCitation id="C7DB2A17FFF9FFD456DDFF1DFBE6FF37" box="[971,1088,199,223]" captionStart="Figure 4" captionStartId="7.[143,210,1421,1443]" captionTargetBox="[143,1103,162,1388]" captionTargetId="figure-6@7.[143,1103,162,1388]" captionTargetPageId="7" captionText="Figure 4. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Left gnathopod 1, lateral view; (B) right gnathopod 2, lateral view; (B1) posterior margin of propodus of right gnathopod 2, medial view, setae omitted; (C–E) left pereopods 3–5, lateral views; (F) basis–dactylus of left pereopod 6, lateral view; (F1) coxa and gill of left pereopod 6, lateral view. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204795" httpUri="https://zenodo.org/record/5204795/files/figure.png" pageId="8" pageNumber="2801">Figure 4E</figureCitation>
) short; coxal plate wide, anterior lobe broad, with three plumose setae on inner surface, ventral margin with several short setae, posterior lobe narrow, with one short seta on posteroventral corner, gill ovoid; basis 0.69 times as wide as long, posterior margin expanded, posterodistal corner not produced, anterodistal corner setose, posterior and posterodistal margins with sparse setae; merus relatively short, posterodistal corner projected, anterodistal and posterodistal corners with several setae; carpus short, anterodistal and posterodistal corners setose; propodus with one robust seta on anterodistal corner, posterodistal margin setose; dactylus short, strongly curved. Pereopod 6 (
<figureCitation id="C7DB2A17FFF9FFD45471FE3CFDA6FE16" box="[359,512,486,510]" captionStart="Figure 4" captionStartId="7.[143,210,1421,1443]" captionTargetBox="[143,1103,162,1388]" captionTargetId="figure-6@7.[143,1103,162,1388]" captionTargetPageId="7" captionText="Figure 4. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Left gnathopod 1, lateral view; (B) right gnathopod 2, lateral view; (B1) posterior margin of propodus of right gnathopod 2, medial view, setae omitted; (C–E) left pereopods 3–5, lateral views; (F) basis–dactylus of left pereopod 6, lateral view; (F1) coxa and gill of left pereopod 6, lateral view. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204795" httpUri="https://zenodo.org/record/5204795/files/figure.png" pageId="8" pageNumber="2801">Figure 4F, F</figureCitation>
<figureCitation id="C7DB2A17FFF9FFD45716FE3CFDADFE16" box="[512,523,486,510]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="8" pageNumber="2801">1</figureCitation>
) about 1.5 times pereopod 5 length; coxal plate smaller than coxa 5, lobate, anteroventral margin with one seta, posterodistal corner bearing one short seta, gill ovoid; basis 0.57 times as wide as long, posterior margin expanded, anterior margin with one robust and two normal setae, anterodistal corner with three setae, posterior margin with sparse setae; merus long, anterodistal and posterodistal corners setose; carpus relatively short, anterodistal and posterodistal corners setose; propodus with one robust seta on anterodistal corner and several long setae on distal margin; dactylus short, strongly curved. Pereopod 7 (
<figureCitation id="C7DB2A17FFF9FFD45639FD1FFC6DFD35" box="[815,971,709,733]" captionStart="Figure 5" captionStartId="9.[143,210,1549,1571]" captionTargetBox="[146,1103,162,1516]" captionTargetId="figure-6@9.[143,1103,162,1516]" captionTargetPageId="9" captionText="Figure 5. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. (A–G) male, 11.5 mm, OMNH-Ar 8541; (H) female, 11.8 mm, OMNH-Ar 8542. (A) Basis–dactylus of left pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B–D) left pleopods 1–3, posterior views; (E, F) left uropods 1, 2, dorsal views; (G) uropods 3 and telson, dorsal view; (H) left gnathopod 2, lateral view, oostegite omitted; (H1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204797" httpUri="https://zenodo.org/record/5204797/files/figure.png" pageId="8" pageNumber="2801">Figure 5A, A</figureCitation>
<figureCitation id="C7DB2A17FFF9FFD456DDFD1FFC73FD35" box="[971,981,709,733]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="8" pageNumber="2801">1</figureCitation>
) about 1.1 times pereopod 6 length; almost similar to pereopod 6, but gill absent, basis without robust seta on anterior margin, and propodus with two robust setae on anterodistal corner.
</paragraph>
<caption id="0B9F661AFFF7FFDA55C5FA38FDF4F90A" ID-DOI="http://doi.org/10.5281/zenodo.5204793" ID-Zenodo-Dep="5204793" httpUri="https://zenodo.org/record/5204793/files/figure.png" pageId="6" pageNumber="2799" startId="6.[211,278,1506,1528]" targetBox="[238,1146,161,1464]" targetPageId="6">
<paragraph id="5F5F3692FFF7FFDA55C5FA38FDF4F90A" blockId="6.[211,1172,1506,1762]" pageId="6" pageNumber="2799">
Figure 3.
<taxonomicName id="98E04D11FFF7FFDA542AFA39FD39FA10" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[316,671,1506,1529]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="6" pageNumber="2799" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFF7FFDA542AFA39FDBAFA11" box="[316,540,1507,1529]" italics="true" pageId="6" pageNumber="2799">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFF7FFDA573AFA38FD3EFA10" author="Sars GO" box="[556,664,1506,1528]" pageId="6" pageNumber="2799" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
, Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Right antenna 1, medial view; (A1) accessory flagellum of right antenna 1, medial view; (B) left antenna 2, lateral view; (C) upper lip, anteroventral view; (D) left mandible, medial view; (D1) incisor and lacinia mobilis of left mandible, medial view; (E) right mandible, medial view; (E1) incisor and lacinia mobilis of right mandible, medial view; (F) lower lip, ventral view; (G) left maxilla 1, ventral view; (G1) apical part of left maxilla 1, ventral view; (H) right maxilla 2, ventral view; (I) right maxilliped, ventral view; (I1) palp article 4 and spine of left maxilliped, ventral view, setae omitted; (I2) apical part of inner plate of right maxilliped, ventral view, slender setae omitted. Scales: 0.1 mm.
</paragraph>
</caption>
<caption id="0B9F661AFFF6FFDB5599FA57FDB9F9F0" ID-DOI="http://doi.org/10.5281/zenodo.5204795" ID-Zenodo-Dep="5204795" httpUri="https://zenodo.org/record/5204795/files/figure.png" pageId="7" pageNumber="2800" startId="7.[143,210,1421,1443]" targetBox="[143,1103,162,1388]" targetPageId="7">
<paragraph id="5F5F3692FFF6FFDB5599FA57FDB9F9F0" blockId="7.[143,1103,1421,1560]" pageId="7" pageNumber="2800">
Figure 4.
<taxonomicName id="98E04D11FFF6FFDB55EEFA57FDFDFA4B" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[248,603,1421,1443]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="2800" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFF6FFDB55EEFA57FE7EFA4B" box="[248,472,1421,1443]" italics="true" pageId="7" pageNumber="2800">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFF6FFDB54FEFA57FDF2FA4B" author="Sars GO" box="[488,596,1421,1443]" pageId="7" pageNumber="2800" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
, Sagami Bay, Japan, male, 11.5 mm, OMNH-Ar 8541. (A) Left gnathopod 1, lateral view; (B) right gnathopod 2, lateral view; (B1) posterior margin of propodus of right gnathopod 2, medial view, setae omitted; (C–E) left pereopods 3–5, lateral views; (F) basis–dactylus of left pereopod 6, lateral view; (F1) coxa and gill of left pereopod 6, lateral view. Scale: 0.1 mm.
</paragraph>
</caption>
<paragraph id="5F5F3692FFF9FFD455E8FCFFFE63FAF3" blockId="8.[211,1172,167,1307]" pageId="8" pageNumber="2801">
Pleopods (
<figureCitation id="C7DB2A17FFF9FFD45463FCFFFDABFCD5" box="[373,525,805,829]" captionStart="Figure 5" captionStartId="9.[143,210,1549,1571]" captionTargetBox="[146,1103,162,1516]" captionTargetId="figure-6@9.[143,1103,162,1516]" captionTargetPageId="9" captionText="Figure 5. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. (A–G) male, 11.5 mm, OMNH-Ar 8541; (H) female, 11.8 mm, OMNH-Ar 8542. (A) Basis–dactylus of left pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B–D) left pleopods 1–3, posterior views; (E, F) left uropods 1, 2, dorsal views; (G) uropods 3 and telson, dorsal view; (H) left gnathopod 2, lateral view, oostegite omitted; (H1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204797" httpUri="https://zenodo.org/record/5204797/files/figure.png" pageId="8" pageNumber="2801">Figure 5B–D</figureCitation>
) relatively long, pleopod 3 shortest; peduncles each with two coupling hooks, peduncles of pleopods 1 and 2 with six and five plumose setae, respectively; outer rami shorter than inner, outer and inner rami with 15 and 14 articles, respectively, inner basal margins of inner rami each with five or six clothespin setae. Uropod 1 (
<figureCitation id="C7DB2A17FFF9FFD45482FC7EFDA1FC54" box="[404,519,932,956]" captionStart="Figure 5" captionStartId="9.[143,210,1549,1571]" captionTargetBox="[146,1103,162,1516]" captionTargetId="figure-6@9.[143,1103,162,1516]" captionTargetPageId="9" captionText="Figure 5. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. (A–G) male, 11.5 mm, OMNH-Ar 8541; (H) female, 11.8 mm, OMNH-Ar 8542. (A) Basis–dactylus of left pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B–D) left pleopods 1–3, posterior views; (E, F) left uropods 1, 2, dorsal views; (G) uropods 3 and telson, dorsal view; (H) left gnathopod 2, lateral view, oostegite omitted; (H1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204797" httpUri="https://zenodo.org/record/5204797/files/figure.png" pageId="8" pageNumber="2801">Figure 5E</figureCitation>
) long; peduncle bearing nine lateral and six medial robust setae; outer ramus longer than inner, outer ramus with six lateral and four terminal robust setae, inner ramus with four medial and two terminal robust setae. Uropod 2 (
<figureCitation id="C7DB2A17FFF9FFD455CDFBDEFEF6FBF4" box="[219,336,1028,1052]" captionStart="Figure 5" captionStartId="9.[143,210,1549,1571]" captionTargetBox="[146,1103,162,1516]" captionTargetId="figure-6@9.[143,1103,162,1516]" captionTargetPageId="9" captionText="Figure 5. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. (A–G) male, 11.5 mm, OMNH-Ar 8541; (H) female, 11.8 mm, OMNH-Ar 8542. (A) Basis–dactylus of left pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B–D) left pleopods 1–3, posterior views; (E, F) left uropods 1, 2, dorsal views; (G) uropods 3 and telson, dorsal view; (H) left gnathopod 2, lateral view, oostegite omitted; (H1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204797" httpUri="https://zenodo.org/record/5204797/files/figure.png" pageId="8" pageNumber="2801">Figure 5F</figureCitation>
) short; lateral margin of peduncle bearing five robust setae, mediodistal corner with one long robust seta; outer ramus longer than inner, outer ramus with three lateral and four terminal robust setae, inner ramus with two medial and two terminal robust setae. Uropod 3 (
<figureCitation id="C7DB2A17FFF9FFD4573FFBBEFD38FB94" box="[553,670,1124,1148]" captionStart="Figure 5" captionStartId="9.[143,210,1549,1571]" captionTargetBox="[146,1103,162,1516]" captionTargetId="figure-6@9.[143,1103,162,1516]" captionTargetPageId="9" captionText="Figure 5. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. (A–G) male, 11.5 mm, OMNH-Ar 8541; (H) female, 11.8 mm, OMNH-Ar 8542. (A) Basis–dactylus of left pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B–D) left pleopods 1–3, posterior views; (E, F) left uropods 1, 2, dorsal views; (G) uropods 3 and telson, dorsal view; (H) left gnathopod 2, lateral view, oostegite omitted; (H1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204797" httpUri="https://zenodo.org/record/5204797/files/figure.png" pageId="8" pageNumber="2801">Figure 5G</figureCitation>
) small, uniramous; peduncle stout, with two lateral, two dorsomedial and two or three laterodistal setae; single ramus short, about half length of peduncle, lateral margin with two lateral setae, tip with three minute protuberances and two short setae. Telson (
<figureCitation id="C7DB2A17FFF9FFD45798FB19FCA5FB33" box="[654,771,1219,1243]" captionStart="Figure 5" captionStartId="9.[143,210,1549,1571]" captionTargetBox="[146,1103,162,1516]" captionTargetId="figure-6@9.[143,1103,162,1516]" captionTargetPageId="9" captionText="Figure 5. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. (A–G) male, 11.5 mm, OMNH-Ar 8541; (H) female, 11.8 mm, OMNH-Ar 8542. (A) Basis–dactylus of left pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B–D) left pleopods 1–3, posterior views; (E, F) left uropods 1, 2, dorsal views; (G) uropods 3 and telson, dorsal view; (H) left gnathopod 2, lateral view, oostegite omitted; (H1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204797" httpUri="https://zenodo.org/record/5204797/files/figure.png" pageId="8" pageNumber="2801">Figure 5G</figureCitation>
) entire, short, with a pair of densely spinulose lobes each bearing two lateral and one distal setae; posterior margin between lobes almost straight.
</paragraph>
<paragraph id="5F5F3692FFF9FFD455C5FA86FCF7FA9B" blockId="8.[211,849,1371,1395]" box="[211,849,1371,1395]" pageId="8" pageNumber="2801">
<emphasis id="6D94EA80FFF9FFD455C5FA86FCF7FA9B" box="[211,849,1371,1395]" italics="true" pageId="8" pageNumber="2801">
Description of female (
<quantity id="98189B77FFF9FFD454DBFA81FD96FA9B" box="[461,560,1371,1395]" metricMagnitude="-2" metricUnit="m" metricValue="1.18" pageId="8" pageNumber="2801" unit="mm" value="11.8">11.8 mm</quantity>
from Sagami Bay,
<collectingCountry id="27F77602FFF9FFD45615FA81FCEFFA9B" box="[771,841,1371,1395]" name="Japan" pageId="8" pageNumber="2801">Japan</collectingCountry>
)
</emphasis>
</paragraph>
<paragraph id="5F5F3692FFF9FFD755C5FA59FD24FEB7" blockId="8.[211,1172,1411,1690]" lastBlockId="11.[143,1104,167,351]" lastPageId="11" lastPageNumber="2804" pageId="8" pageNumber="2801">
Gnathopod 1 (
<figureCitation id="C7DB2A17FFF9FFD4546CFA59FE49FA73" box="[378,495,1411,1435]" captionStart="Figure 6" captionStartId="10.[211,278,1557,1579]" captionTargetBox="[213,1170,162,1524]" captionTargetId="figure-5@10.[213,1170,162,1524]" captionTargetPageId="10" captionText="Figure 6. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, female, 11.8 mm, OMNH-Ar 8542. (A) Left gnathopod 1, lateral view; (B–F) left pereopods 3–7, lateral views, oostegites on pereopods 3–5 omitted. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204799" httpUri="https://zenodo.org/record/5204799/files/figure.png" pageId="8" pageNumber="2801">Figure 6A</figureCitation>
) similar to that of male. Gnathopod 2 (
<figureCitation id="C7DB2A17FFF9FFD456BBFA59FBECFA73" box="[941,1098,1411,1435]" captionStart="Figure 5" captionStartId="9.[143,210,1549,1571]" captionTargetBox="[146,1103,162,1516]" captionTargetId="figure-6@9.[143,1103,162,1516]" captionTargetPageId="9" captionText="Figure 5. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. (A–G) male, 11.5 mm, OMNH-Ar 8541; (H) female, 11.8 mm, OMNH-Ar 8542. (A) Basis–dactylus of left pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B–D) left pleopods 1–3, posterior views; (E, F) left uropods 1, 2, dorsal views; (G) uropods 3 and telson, dorsal view; (H) left gnathopod 2, lateral view, oostegite omitted; (H1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204797" httpUri="https://zenodo.org/record/5204797/files/figure.png" pageId="8" pageNumber="2801">Figure 5H, H</figureCitation>
<figureCitation id="C7DB2A17FFF9FFD4515FFA59FBF5FA73" box="[1097,1107,1411,1435]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="8" pageNumber="2801">1</figureCitation>
) proportionally smaller than that of male, subchelate; coxal plate inflated posteriorly, anteroventral margin bearing a few short setae, ventral margin without stridulating ridges, gill absent; basis broadened at mid-length, anterior and posterior margins with sparse short setae; ischium short; merus truncate distally, distal margin setose; carpus with large posterodistal lobe bearing four robust and many normal setae posteriorly; propodus enlarged, posterior margin with six robust and several normal setae; dactylus stout, gradually curved posteriorly, anterior and posterior margins each with several short setae. Pereopods 3 and 4 (
<figureCitation id="C7DB2A17FFF9FFD4575AF958FD4EF972" box="[588,744,1666,1690]" captionStart="Figure 6" captionStartId="10.[211,278,1557,1579]" captionTargetBox="[213,1170,162,1524]" captionTargetId="figure-5@10.[213,1170,162,1524]" captionTargetPageId="10" captionText="Figure 6. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, female, 11.8 mm, OMNH-Ar 8542. (A) Left gnathopod 1, lateral view; (B–F) left pereopods 3–7, lateral views, oostegites on pereopods 3–5 omitted. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204799" httpUri="https://zenodo.org/record/5204799/files/figure.png" pageId="8" pageNumber="2801">Figure 6B, C</figureCitation>
), coxae wider, gills and bases longer than those of male. Pereopod 5 (
<figureCitation id="C7DB2A17FFFAFFD75711FF7DFD27FF57" box="[519,641,167,191]" captionStart="Figure 6" captionStartId="10.[211,278,1557,1579]" captionTargetBox="[213,1170,162,1524]" captionTargetId="figure-5@10.[213,1170,162,1524]" captionTargetPageId="10" captionText="Figure 6. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, female, 11.8 mm, OMNH-Ar 8542. (A) Left gnathopod 1, lateral view; (B–F) left pereopods 3–7, lateral views, oostegites on pereopods 3–5 omitted. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204799" httpUri="https://zenodo.org/record/5204799/files/figure.png" pageId="11" pageNumber="2804">Figure 6D</figureCitation>
), anterior lobe of coxal plate more slen- der than that of male, ventral margin bearing many plumose setae, posterior lobe with three plumose setae on posteroventral corner. Pereopods 6 and 7 (
<figureCitation id="C7DB2A17FFFAFFD756B8FF3DFBE7FF17" box="[942,1089,231,255]" captionStart="Figure 6" captionStartId="10.[211,278,1557,1579]" captionTargetBox="[213,1170,162,1524]" captionTargetId="figure-5@10.[213,1170,162,1524]" captionTargetPageId="10" captionText="Figure 6. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan, female, 11.8 mm, OMNH-Ar 8542. (A) Left gnathopod 1, lateral view; (B–F) left pereopods 3–7, lateral views, oostegites on pereopods 3–5 omitted. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204799" httpUri="https://zenodo.org/record/5204799/files/figure.png" pageId="11" pageNumber="2804">Figure 6E, F</figureCitation>
), anterior lobes of coxal plates with many plumose setae ventrally, inner surfaces of posterior lobes bearing several setae; bases, meri and propodi longer than those of male. Oostegites broad, present on pereopods 2–5.
</paragraph>
<caption id="0B9F661AFFF8FFD55599F9D7FCE6F95D" ID-DOI="http://doi.org/10.5281/zenodo.5204797" ID-Zenodo-Dep="5204797" httpUri="https://zenodo.org/record/5204797/files/figure.png" pageId="9" pageNumber="2802" startId="9.[143,210,1549,1571]" targetBox="[146,1103,162,1516]" targetPageId="9">
<paragraph id="5F5F3692FFF8FFD55599F9D7FCE6F95D" blockId="9.[143,1103,1549,1717]" pageId="9" pageNumber="2802">
Figure 5.
<taxonomicName id="98E04D11FFF8FFD555EBF9D7FDC8F9CB" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[253,622,1549,1571]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="9" pageNumber="2802" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFF8FFD555EBF9D7FE44F9CB" box="[253,482,1549,1571]" italics="true" pageId="9" pageNumber="2802">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFF8FFD554E0F9D7FDC1F9CB" author="Sars GO" box="[502,615,1549,1571]" pageId="9" pageNumber="2802" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
, Sagami Bay, Japan. (A–G) male, 11.5 mm, OMNH-Ar 8541; (H) female, 11.8 mm, OMNH-Ar 8542. (A) Basis–dactylus of left pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B–D) left pleopods 1–3, posterior views; (E, F) left uropods 1, 2, dorsal views; (G) uropods 3 and telson, dorsal view; (H) left gnathopod 2, lateral view, oostegite omitted; (H1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted. Scales: 0.1 mm.
</paragraph>
</caption>
<caption id="0B9F661AFFFBFFD655C5F9CFFDFAF98D" ID-DOI="http://doi.org/10.5281/zenodo.5204799" ID-Zenodo-Dep="5204799" httpUri="https://zenodo.org/record/5204799/files/figure.png" pageId="10" pageNumber="2803" startId="10.[211,278,1557,1579]" targetBox="[213,1170,162,1524]" targetPageId="10">
<paragraph id="5F5F3692FFFBFFD655C5F9CFFDFAF98D" blockId="10.[211,1171,1557,1637]" pageId="10" pageNumber="2803">
Figure 6.
<taxonomicName id="98E04D11FFFBFFD6542DF9CFFD3FF9C3" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[315,665,1557,1579]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="10" pageNumber="2803" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFFBFFD6542DF9CFFDBFF9C3" box="[315,537,1557,1579]" italics="true" pageId="10" pageNumber="2803">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFFBFFD65731F9CFFD37F9C3" author="Sars GO" box="[551,657,1557,1579]" pageId="10" pageNumber="2803" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
, Sagami Bay, Japan, female, 11.8 mm, OMNH-Ar 8542. (A) Left gnathopod 1, lateral view; (B–F) left pereopods 3–7, lateral views, oostegites on pereopods 3–5 omitted. Scale: 0.1 mm.
</paragraph>
</caption>
<paragraph id="5F5F3692FFFAFFD75599FE75FB8DFE2F" blockId="11.[143,1067,431,455]" box="[143,1067,431,455]" pageId="11" pageNumber="2804">
<emphasis id="6D94EA80FFFAFFD75599FE75FB8DFE2F" box="[143,1067,431,455]" italics="true" pageId="11" pageNumber="2804">
Descriptions of the specimens deposited in the Natural History Museum of
<collectingCountry id="27F77602FFFAFFD756D2FE75FB8DFE2F" box="[964,1067,431,455]" name="Denmark" pageId="11" pageNumber="2804">Denmark</collectingCountry>
</emphasis>
</paragraph>
<paragraph id="5F5F3692FFFAFFD75599FE0CFC33FB84" blockId="11.[143,1104,470,1132]" pageId="11" pageNumber="2804">
Morphological characters of all the specimens dissected are similar to those of the Japanese specimens: antennae, mouthparts, gnathopod 1 except for merus, male gnathopod 2 except for basis, pleopods, uropods and telson. However, several characters are different. In the male from the Norwegian Sea (9.0 mm), (1) merus of gnathopod 1 projected posterodistally (
<figureCitation id="C7DB2A17FFFAFFD7574BFD8CFD7CFD86" box="[605,730,598,622]" captionStart="Figure 7" captionStartId="12.[211,278,1554,1576]" captionTargetBox="[213,1170,163,1522]" captionTargetId="figure-5@12.[213,1170,163,1522]" captionTargetPageId="12" captionText="Figure 7. Ericthonius megalopus (Sars, 1879), Norwegian Sea, male, 9.0 mm, ZMUC-CRU- 20157. (A, B) Left gnathopods 1, 2, lateral views; (B1) posterior margin of propodus of left gnathopod 2, lateral view, setae omitted; (C, D) left pereopods 3, 4, lateral views; (E) coxa, gill and basis of left pereopod 5, lateral view; (F) left coxa, gill and right basis of pereopod 6, lateral view; (G) coxa and basis of left pereopod 7, lateral view. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204801" httpUri="https://zenodo.org/record/5204801/files/figure.png" pageId="11" pageNumber="2804">Figure 7A</figureCitation>
), (2) bases of pereopods 3 and 4 shorter and wider (
<figureCitation id="C7DB2A17FFFAFFD75460FDACFDAAFD66" box="[374,524,630,654]" captionStart="Figure 7" captionStartId="12.[211,278,1554,1576]" captionTargetBox="[213,1170,163,1522]" captionTargetId="figure-5@12.[213,1170,163,1522]" captionTargetPageId="12" captionText="Figure 7. Ericthonius megalopus (Sars, 1879), Norwegian Sea, male, 9.0 mm, ZMUC-CRU- 20157. (A, B) Left gnathopods 1, 2, lateral views; (B1) posterior margin of propodus of left gnathopod 2, lateral view, setae omitted; (C, D) left pereopods 3, 4, lateral views; (E) coxa, gill and basis of left pereopod 5, lateral view; (F) left coxa, gill and right basis of pereopod 6, lateral view; (G) coxa and basis of left pereopod 7, lateral view. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204801" httpUri="https://zenodo.org/record/5204801/files/figure.png" pageId="11" pageNumber="2804">Figure 7C, D</figureCitation>
), and (3) coxae 5–7 each with shallow notch on posterodorsal margins (
<figureCitation id="C7DB2A17FFFAFFD75462FD4FFDA8FD45" box="[372,526,661,685]" captionStart="Figure 7" captionStartId="12.[211,278,1554,1576]" captionTargetBox="[213,1170,163,1522]" captionTargetId="figure-5@12.[213,1170,163,1522]" captionTargetPageId="12" captionText="Figure 7. Ericthonius megalopus (Sars, 1879), Norwegian Sea, male, 9.0 mm, ZMUC-CRU- 20157. (A, B) Left gnathopods 1, 2, lateral views; (B1) posterior margin of propodus of left gnathopod 2, lateral view, setae omitted; (C, D) left pereopods 3, 4, lateral views; (E) coxa, gill and basis of left pereopod 5, lateral view; (F) left coxa, gill and right basis of pereopod 6, lateral view; (G) coxa and basis of left pereopod 7, lateral view. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204801" httpUri="https://zenodo.org/record/5204801/files/figure.png" pageId="11" pageNumber="2804">Figure 7E–G</figureCitation>
). In the female from the Norwegian Sea (
<quantity id="98189B77FFFAFFD756FEFD4FFBE2FD45" box="[1000,1092,661,685]" metricMagnitude="-3" metricUnit="m" metricValue="9.6" pageId="11" pageNumber="2804" unit="mm" value="9.6">9.6 mm</quantity>
), (1) merus of gnathopod 2 weakly projected posterodistally (
<figureCitation id="C7DB2A17FFFAFFD75622FD6FFC0FFD25" box="[820,937,693,717]" captionStart="Figure 8" captionStartId="13.[143,210,1549,1571]" captionTargetBox="[143,1103,161,1515]" captionTargetId="figure-6@13.[143,1103,161,1516]" captionTargetPageId="13" captionText="Figure 8. Ericthonius megalopus (Sars, 1879), Norwegian Sea, ovigerous female, 9.6 mm, ZMUC-CRU-20157. (A, B) Left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (B1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (C–F) left pereopods 3–6, lateral views, oostegites on pereopods 3–5 omitted; (G) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204804" httpUri="https://zenodo.org/record/5204804/files/figure.png" pageId="11" pageNumber="2804">Figure 8B</figureCitation>
), (2) carpus of gnathopod 2 with three robust setae on posterodistal margin (
<figureCitation id="C7DB2A17FFFAFFD75650FD0FFC1AFD05" box="[838,956,725,749]" captionStart="Figure 8" captionStartId="13.[143,210,1549,1571]" captionTargetBox="[143,1103,161,1515]" captionTargetId="figure-6@13.[143,1103,161,1516]" captionTargetPageId="13" captionText="Figure 8. Ericthonius megalopus (Sars, 1879), Norwegian Sea, ovigerous female, 9.6 mm, ZMUC-CRU-20157. (A, B) Left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (B1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (C–F) left pereopods 3–6, lateral views, oostegites on pereopods 3–5 omitted; (G) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204804" httpUri="https://zenodo.org/record/5204804/files/figure.png" pageId="11" pageNumber="2804">Figure 8B</figureCitation>
<figureCitation id="C7DB2A17FFFAFFD756AAFD0FFC60FD05" box="[956,966,725,749]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="11" pageNumber="2804">1</figureCitation>
), (3) propodus of gnathopod 2 shorter and wider (
<figureCitation id="C7DB2A17FFFAFFD75756FD2FFD15FCE5" box="[576,691,757,781]" captionStart="Figure 8" captionStartId="13.[143,210,1549,1571]" captionTargetBox="[143,1103,161,1515]" captionTargetId="figure-6@13.[143,1103,161,1516]" captionTargetPageId="13" captionText="Figure 8. Ericthonius megalopus (Sars, 1879), Norwegian Sea, ovigerous female, 9.6 mm, ZMUC-CRU-20157. (A, B) Left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (B1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (C–F) left pereopods 3–6, lateral views, oostegites on pereopods 3–5 omitted; (G) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204804" httpUri="https://zenodo.org/record/5204804/files/figure.png" pageId="11" pageNumber="2804">Figure 8B</figureCitation>
), (4) dactylus of gnathopod 2 shorter (
<figureCitation id="C7DB2A17FFFAFFD75581FCCFFEAFFCC5" box="[151,265,789,813]" captionStart="Figure 8" captionStartId="13.[143,210,1549,1571]" captionTargetBox="[143,1103,161,1515]" captionTargetId="figure-6@13.[143,1103,161,1516]" captionTargetPageId="13" captionText="Figure 8. Ericthonius megalopus (Sars, 1879), Norwegian Sea, ovigerous female, 9.6 mm, ZMUC-CRU-20157. (A, B) Left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (B1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (C–F) left pereopods 3–6, lateral views, oostegites on pereopods 3–5 omitted; (G) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204804" httpUri="https://zenodo.org/record/5204804/files/figure.png" pageId="11" pageNumber="2804">Figure 8B</figureCitation>
), and (5) bases and meri of pereopods 3–6 shorter and wider (
<figureCitation id="C7DB2A17FFFAFFD756B8FCCFFBE5FCC5" box="[942,1091,789,813]" captionStart="Figure 8" captionStartId="13.[143,210,1549,1571]" captionTargetBox="[143,1103,161,1515]" captionTargetId="figure-6@13.[143,1103,161,1516]" captionTargetPageId="13" captionText="Figure 8. Ericthonius megalopus (Sars, 1879), Norwegian Sea, ovigerous female, 9.6 mm, ZMUC-CRU-20157. (A, B) Left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (B1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (C–F) left pereopods 3–6, lateral views, oostegites on pereopods 3–5 omitted; (G) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204804" httpUri="https://zenodo.org/record/5204804/files/figure.png" pageId="11" pageNumber="2804">Figure 8C–F</figureCitation>
). In the male from the Arctic Sea (
<quantity id="98189B77FFFAFFD75714FCEFFDFDFCA5" box="[514,603,821,845]" metricMagnitude="-3" metricUnit="m" metricValue="8.3" pageId="11" pageNumber="2804" unit="mm" value="8.3">8.3 mm</quantity>
, previously identified as
<taxonomicName id="98E04D11FFFAFFD75666FCECFC1AFCA5" authorityName="Bruggen" authorityYear="1909" box="[880,956,821,845]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="11" pageNumber="2804" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFFAFFD75666FCECFC1AFCA5" box="[880,956,821,845]" italics="true" pageId="11" pageNumber="2804">E. tolli</emphasis>
</taxonomicName>
), (1) basis of gnathopod 2 shorter and wider (
<figureCitation id="C7DB2A17FFFAFFD75710FC8FFDDAFC85" box="[518,636,853,877]" captionStart="Figure 9" captionStartId="14.[211,278,1565,1587]" captionTargetBox="[212,1170,162,1532]" captionTargetId="figure-5@14.[211,1171,162,1532]" captionTargetPageId="14" captionText="Figure 9. Ericthonius megalopus (Sars, 1879) (previously identified as Ericthonius tolli), Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162. (A, B) Left gnathopods 1, 2, lateral views; (B1) posterior margin of propodus of left gnathopod 2, lateral view, setae omitted; (C, D) left pereopods 3, 4, lateral views; (E) basis–dactylus of left pereopod 5, lateral view; (E1) coxa and gill of left pereopod 5, lateral view; (F) basis–dactylus of right pereopod 6, lateral view; (F1) coxa of left pereopod 6, lateral view, gill lost. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204807" httpUri="https://zenodo.org/record/5204807/files/figure.png" pageId="11" pageNumber="2804">Figure 9B</figureCitation>
), (2) bases of pereopods 3 and 4 shorter and much wider (
<figureCitation id="C7DB2A17FFFAFFD75444FCAFFE4DFC65" box="[338,491,885,909]" captionStart="Figure 9" captionStartId="14.[211,278,1565,1587]" captionTargetBox="[212,1170,162,1532]" captionTargetId="figure-5@14.[211,1171,162,1532]" captionTargetPageId="14" captionText="Figure 9. Ericthonius megalopus (Sars, 1879) (previously identified as Ericthonius tolli), Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162. (A, B) Left gnathopods 1, 2, lateral views; (B1) posterior margin of propodus of left gnathopod 2, lateral view, setae omitted; (C, D) left pereopods 3, 4, lateral views; (E) basis–dactylus of left pereopod 5, lateral view; (E1) coxa and gill of left pereopod 5, lateral view; (F) basis–dactylus of right pereopod 6, lateral view; (F1) coxa of left pereopod 6, lateral view, gill lost. Scale: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204807" httpUri="https://zenodo.org/record/5204807/files/figure.png" pageId="11" pageNumber="2804">Figure 9C, D</figureCitation>
), and (3) meri of pereopods 3 and 4 shorter and wider. In the female from Baffin Bay (
<quantity id="98189B77FFFAFFD754EFFC4FFDC7FC44" box="[505,609,917,941]" metricMagnitude="-2" metricUnit="m" metricValue="1.1199999999999999" pageId="11" pageNumber="2804" unit="mm" value="11.2">11.2 mm</quantity>
, previously identified as
<taxonomicName id="98E04D11FFFAFFD7566AFC4CFC6CFC45" authorityName="Bruggen" authorityYear="1909" box="[892,970,917,941]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="11" pageNumber="2804" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFFAFFD7566AFC4CFC6CFC45" box="[892,970,917,941]" italics="true" pageId="11" pageNumber="2804">E. tolli</emphasis>
</taxonomicName>
), (1) merus of gnathopod 1 weakly projected posterodistally (
<figureCitation id="C7DB2A17FFFAFFD757D3FC6EFCEEFC24" box="[709,840,948,972]" captionStart="Figure 10" captionStartId="15.[143,210,1482,1504]" captionTargetBox="[145,1102,163,1450]" captionTargetId="figure-6@15.[145,1102,162,1450]" captionTargetPageId="15" captionText="Figure 10. Ericthonius megalopus (Sars, 1879) (previously identified as Ericthonius tolli). (A) Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162; (B–H) Baffin Bay, ovigerous female, 11.2 mm, ZMUC-CRU-20161. (A) Basis–dactylus of right pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B, C) left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (C1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (D) coxa and gill of left pereopod 3, lateral view, oostegite omitted; (E, F) left pereopods 4, 5, lateral views, oostegites omitted; (G) coxa and gill of left pereopod 6, lateral view; (H) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204809" httpUri="https://zenodo.org/record/5204809/files/figure.png" pageId="11" pageNumber="2804">Figure 10B</figureCitation>
), (2) carpus of gnathopod 2 with five robust setae on posterodistal margin (
<figureCitation id="C7DB2A17FFFAFFD757E2FC0EFCDAFC04" box="[756,892,980,1004]" captionStart="Figure 10" captionStartId="15.[143,210,1482,1504]" captionTargetBox="[145,1102,163,1450]" captionTargetId="figure-6@15.[145,1102,162,1450]" captionTargetPageId="15" captionText="Figure 10. Ericthonius megalopus (Sars, 1879) (previously identified as Ericthonius tolli). (A) Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162; (B–H) Baffin Bay, ovigerous female, 11.2 mm, ZMUC-CRU-20161. (A) Basis–dactylus of right pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B, C) left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (C1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (D) coxa and gill of left pereopod 3, lateral view, oostegite omitted; (E, F) left pereopods 4, 5, lateral views, oostegites omitted; (G) coxa and gill of left pereopod 6, lateral view; (H) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204809" httpUri="https://zenodo.org/record/5204809/files/figure.png" pageId="11" pageNumber="2804">Figure 10C</figureCitation>
<figureCitation id="C7DB2A17FFFAFFD7566AFC0EFC20FC04" box="[892,902,980,1004]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="11" pageNumber="2804">1</figureCitation>
), (3) propodus of gnathopod 2 shorter and wider (
<figureCitation id="C7DB2A17FFFAFFD754EFFC2EFDDAFBE4" box="[505,636,1012,1036]" captionStart="Figure 10" captionStartId="15.[143,210,1482,1504]" captionTargetBox="[145,1102,163,1450]" captionTargetId="figure-6@15.[145,1102,162,1450]" captionTargetPageId="15" captionText="Figure 10. Ericthonius megalopus (Sars, 1879) (previously identified as Ericthonius tolli). (A) Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162; (B–H) Baffin Bay, ovigerous female, 11.2 mm, ZMUC-CRU-20161. (A) Basis–dactylus of right pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B, C) left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (C1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (D) coxa and gill of left pereopod 3, lateral view, oostegite omitted; (E, F) left pereopods 4, 5, lateral views, oostegites omitted; (G) coxa and gill of left pereopod 6, lateral view; (H) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204809" httpUri="https://zenodo.org/record/5204809/files/figure.png" pageId="11" pageNumber="2804">Figure 10C</figureCitation>
), (4) propodus of gnathopod 2 with seven robust setae on posterior margin (
<figureCitation id="C7DB2A17FFFAFFD75705FBCEFD3CFBC4" box="[531,666,1044,1068]" captionStart="Figure 10" captionStartId="15.[143,210,1482,1504]" captionTargetBox="[145,1102,163,1450]" captionTargetId="figure-6@15.[145,1102,162,1450]" captionTargetPageId="15" captionText="Figure 10. Ericthonius megalopus (Sars, 1879) (previously identified as Ericthonius tolli). (A) Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162; (B–H) Baffin Bay, ovigerous female, 11.2 mm, ZMUC-CRU-20161. (A) Basis–dactylus of right pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B, C) left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (C1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (D) coxa and gill of left pereopod 3, lateral view, oostegite omitted; (E, F) left pereopods 4, 5, lateral views, oostegites omitted; (G) coxa and gill of left pereopod 6, lateral view; (H) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204809" httpUri="https://zenodo.org/record/5204809/files/figure.png" pageId="11" pageNumber="2804">Figure 10C</figureCitation>
<figureCitation id="C7DB2A17FFFAFFD7578CFBCEFD02FBC4" box="[666,676,1044,1068]" captionStart="Figure 1" captionStartId="4.[211,278,729,751]" captionTargetBox="[211,1171,168,696]" captionTargetId="figure-5@4.[211,1171,168,696]" captionTargetPageId="4" captionText="Figure 1. Ericthonius megalopus (Sars, 1879), Sagami Bay, Japan. Male, 11.5 mm, OMNH-Ar 8541 (left), and female, 11.8 mm, OMNH-Ar 8542 (right), in the nest (mud tube). Photography by Y. Fujiwara." figureDoi="http://doi.org/10.5281/zenodo.5204789" httpUri="https://zenodo.org/record/5204789/files/figure.png" pageId="11" pageNumber="2804">1</figureCitation>
), (5) dactylus of gnathopod 2 shorter (
<figureCitation id="C7DB2A17FFFAFFD75581FBEEFEBDFBA4" box="[151,283,1076,1100]" captionStart="Figure 10" captionStartId="15.[143,210,1482,1504]" captionTargetBox="[145,1102,163,1450]" captionTargetId="figure-6@15.[145,1102,162,1450]" captionTargetPageId="15" captionText="Figure 10. Ericthonius megalopus (Sars, 1879) (previously identified as Ericthonius tolli). (A) Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162; (B–H) Baffin Bay, ovigerous female, 11.2 mm, ZMUC-CRU-20161. (A) Basis–dactylus of right pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B, C) left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (C1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (D) coxa and gill of left pereopod 3, lateral view, oostegite omitted; (E, F) left pereopods 4, 5, lateral views, oostegites omitted; (G) coxa and gill of left pereopod 6, lateral view; (H) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204809" httpUri="https://zenodo.org/record/5204809/files/figure.png" pageId="11" pageNumber="2804">Figure 10C</figureCitation>
), (6) bases of pereopods 4 and 5 shorter and wider (
<figureCitation id="C7DB2A17FFFAFFD7567AFBEEFBA8FBA4" box="[876,1038,1076,1100]" captionStart="Figure 10" captionStartId="15.[143,210,1482,1504]" captionTargetBox="[145,1102,163,1450]" captionTargetId="figure-6@15.[145,1102,162,1450]" captionTargetPageId="15" captionText="Figure 10. Ericthonius megalopus (Sars, 1879) (previously identified as Ericthonius tolli). (A) Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162; (B–H) Baffin Bay, ovigerous female, 11.2 mm, ZMUC-CRU-20161. (A) Basis–dactylus of right pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B, C) left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (C1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (D) coxa and gill of left pereopod 3, lateral view, oostegite omitted; (E, F) left pereopods 4, 5, lateral views, oostegites omitted; (G) coxa and gill of left pereopod 6, lateral view; (H) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204809" httpUri="https://zenodo.org/record/5204809/files/figure.png" pageId="11" pageNumber="2804">Figure 10E, F</figureCitation>
), and (7) coxa 7 with shallow notch on posterodorsal margin (
<figureCitation id="C7DB2A17FFFAFFD75614FB8EFC2FFB84" box="[770,905,1108,1132]" captionStart="Figure 10" captionStartId="15.[143,210,1482,1504]" captionTargetBox="[145,1102,163,1450]" captionTargetId="figure-6@15.[145,1102,162,1450]" captionTargetPageId="15" captionText="Figure 10. Ericthonius megalopus (Sars, 1879) (previously identified as Ericthonius tolli). (A) Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162; (B–H) Baffin Bay, ovigerous female, 11.2 mm, ZMUC-CRU-20161. (A) Basis–dactylus of right pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B, C) left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (C1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (D) coxa and gill of left pereopod 3, lateral view, oostegite omitted; (E, F) left pereopods 4, 5, lateral views, oostegites omitted; (G) coxa and gill of left pereopod 6, lateral view; (H) coxa of left pereopod 7, lateral view. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5204809" httpUri="https://zenodo.org/record/5204809/files/figure.png" pageId="11" pageNumber="2804">Figure 10H</figureCitation>
).
</paragraph>
<paragraph id="5F5F3692FFFAFFD75599FB66FF57FB3C" blockId="11.[143,241,1212,1236]" box="[143,241,1212,1236]" pageId="11" pageNumber="2804">
<emphasis id="6D94EA80FFFAFFD75599FB66FF57FB3C" box="[143,241,1212,1236]" italics="true" pageId="11" pageNumber="2804">Remarks</emphasis>
</paragraph>
<paragraph id="5F5F3692FFFAFFD75599FB39FB87F972" blockId="11.[143,1104,1251,1690]" pageId="11" pageNumber="2804">
The morphological characters are similar among the dissected specimens, including the specimens previously identified as
<taxonomicName id="98E04D11FFFAFFD75758FADEFD38FAF3" authorityName="Bruggen" authorityYear="1909" box="[590,670,1283,1307]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="11" pageNumber="2804" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFFAFFD75758FADEFD38FAF3" box="[590,670,1283,1307]" italics="true" pageId="11" pageNumber="2804">E. tolli</emphasis>
</taxonomicName>
, except for several characters. In the shapes of the bases of pereopods 3 and 4, the specimens deposited in the Natural History Museum of
<collectingCountry id="27F77602FFFAFFD75462FA99FE46FAB3" box="[372,480,1347,1371]" name="Denmark" pageId="11" pageNumber="2804">Denmark</collectingCountry>
are different from the Japanese specimen, namely those of the former are shorter and wider than those of the latter. In males, the body lengths are
<quantity id="98189B77FFFAFFD755ACFA59FEBBFA73" box="[186,285,1411,1435]" metricMagnitude="-2" metricUnit="m" metricValue="1.15" pageId="11" pageNumber="2804" unit="mm" value="11.5">11.5 mm</quantity>
in the Japanese specimen, 9.0 mm in the specimen from the Norwegian Sea, and
<quantity id="98189B77FFFAFFD755ECFA79FEF6FA52" box="[250,336,1443,1467]" metricMagnitude="-3" metricUnit="m" metricValue="8.3" pageId="11" pageNumber="2804" unit="mm" value="8.3">8.3 mm</quantity>
in the specimen from the Arctic Ocean; therefore, the difference of the shapes of the pereopods 3 and 4 is estimated to be a result of the difference in body size. In fact,
<bibRefCitation id="3B714B63FFFAFFD7540FFA39FDEBFA12" author="Myers AA &amp; McGrath D" box="[281,589,1506,1531]" pageId="11" pageNumber="2804" pagination="379 - 400" refId="ref7031" refString="Myers AA, McGrath D. 1984. A revision of the north-east Atlantic species of Ericthonius (Crustacea: Amphipoda). J Mar Biol Assoc UK. 64: 379 - 400." type="journal article" year="1984">Myers and McGrath (1984)</bibRefCitation>
and
<bibRefCitation id="3B714B63FFFAFFD75794FA38FC97FA12" author="Ariyama H" box="[642,817,1506,1530]" pageId="11" pageNumber="2804" pagination="15 - 36" refId="ref5921" refString="Ariyama H. 2009. Species of the genus Ericthonius (Crustacea: Amphipoda: Ischyroceridae) from western Japan with description of a new species. Bull Natl Mus Nat Sci, Ser A, Suppl. 3: 15 - 36." type="journal article" year="2009">Ariyama (2009)</bibRefCitation>
recognized that shapes of male appendages vary markedly with growth in
<taxonomicName id="98E04D11FFFAFFD7578BF9D8FCD2F9F2" box="[669,884,1538,1562]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="11" pageNumber="2804" phylum="Arthropoda" rank="species" species="undetermined">
<emphasis id="6D94EA80FFFAFFD7578BF9D8FCBDF9F2" box="[669,795,1538,1562]" italics="true" pageId="11" pageNumber="2804">Ericthonius</emphasis>
species.
</taxonomicName>
Also in females, the difference in the shapes of the gnathopod 2 and the pereopods between the Japanese specimen (
<quantity id="98189B77FFFAFFD75410F998FECDF9B2" box="[262,363,1602,1626]" metricMagnitude="-2" metricUnit="m" metricValue="1.18" pageId="11" pageNumber="2804" unit="mm" value="11.8">11.8 mm</quantity>
) and the specimen from the Norwegian Sea (
<quantity id="98189B77FFFAFFD7567AF998FC65F9B2" box="[876,963,1602,1626]" metricMagnitude="-3" metricUnit="m" metricValue="9.6" pageId="11" pageNumber="2804" unit="mm" value="9.6">9.6 mm</quantity>
) is probably caused by body size, whereas the shapes of the specimen from Baffin Bay resemble those of the specimen from the Norwegian Sea in spite of its large size (
<quantity id="98189B77FFFAFFD756BBF958FBB2F972" box="[941,1044,1666,1690]" metricMagnitude="-2" metricUnit="m" metricValue="1.1199999999999999" pageId="11" pageNumber="2804" unit="mm" value="11.2">11.2 mm</quantity>
).
</paragraph>
<caption id="0B9F661AFFFDFFD055C5F9C8FC04F975" ID-DOI="http://doi.org/10.5281/zenodo.5204801" ID-Zenodo-Dep="5204801" httpUri="https://zenodo.org/record/5204801/files/figure.png" pageId="12" pageNumber="2805" startId="12.[211,278,1554,1576]" targetBox="[213,1170,163,1522]" targetPageId="12">
<paragraph id="5F5F3692FFFDFFD055C5F9C8FC04F975" blockId="12.[211,1172,1554,1693]" pageId="12" pageNumber="2805">
Figure 7.
<taxonomicName id="98E04D11FFFDFFD05428F9C9FD01F9C0" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[318,679,1554,1577]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="12" pageNumber="2805" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFFDFFD05428F9C9FD87F9C1" box="[318,545,1555,1577]" italics="true" pageId="12" pageNumber="2805">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFFDFFD05724F9C8FD06F9C0" author="Sars GO" box="[562,672,1554,1576]" pageId="12" pageNumber="2805" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
, Norwegian Sea, male, 9.0 mm, ZMUC-CRU- 20157. (A, B) Left gnathopods 1, 2, lateral views; (B1) posterior margin of propodus of left gnathopod 2, lateral view, setae omitted; (C, D) left pereopods 3, 4, lateral views; (E) coxa, gill and basis of left pereopod 5, lateral view; (F) left coxa, gill and right basis of pereopod 6, lateral view; (G) coxa and basis of left pereopod 7, lateral view. Scale: 0.1 mm.
</paragraph>
</caption>
<caption id="0B9F661AFFFCFFD15599F9D7FD39F970" ID-DOI="http://doi.org/10.5281/zenodo.5204804" ID-Zenodo-Dep="5204804" httpUri="https://zenodo.org/record/5204804/files/figure.png" pageId="13" pageNumber="2806" startId="13.[143,210,1549,1571]" targetBox="[143,1103,161,1515]" targetPageId="13">
<paragraph id="5F5F3692FFFCFFD15599F9D7FD39F970" blockId="13.[143,1104,1549,1688]" pageId="13" pageNumber="2806">
Figure 8.
<taxonomicName id="98E04D11FFFCFFD155EBF9D7FDC9F9CB" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[253,623,1549,1571]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="13" pageNumber="2806" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFFCFFD155EBF9D7FE44F9CB" box="[253,482,1549,1571]" italics="true" pageId="13" pageNumber="2806">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFFCFFD154E1F9D7FDCEF9CB" author="Sars GO" box="[503,616,1549,1571]" pageId="13" pageNumber="2806" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
, Norwegian Sea, ovigerous female, 9.6 mm, ZMUC-CRU-20157. (A, B) Left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (B1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (C–F) left pereopods 3–6, lateral views, oostegites on pereopods 3–5 omitted; (G) coxa of left pereopod 7, lateral view. Scales: 0.1 mm.
</paragraph>
</caption>
<caption id="0B9F661AFFFFFFD255C5F9C7FD1CF92D" ID-DOI="http://doi.org/10.5281/zenodo.5204807" ID-Zenodo-Dep="5204807" httpUri="https://zenodo.org/record/5204807/files/figure.png" pageId="14" pageNumber="2807" startId="14.[211,278,1565,1587]" targetBox="[212,1170,162,1532]" targetPageId="14">
<paragraph id="5F5F3692FFFFFFD255C5F9C7FD1CF92D" blockId="14.[211,1172,1565,1733]" pageId="14" pageNumber="2807">
Figure 9.
<taxonomicName id="98E04D11FFFFFFD2542AF9C7FD3AF9DB" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[316,668,1565,1587]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="14" pageNumber="2807" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFFFFFD2542AF9C7FDBAF9DB" box="[316,540,1565,1587]" italics="true" pageId="14" pageNumber="2807">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFFFFFD2573DF9C7FD33F9DB" author="Sars GO" box="[555,661,1565,1587]" pageId="14" pageNumber="2807" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
(previously identified as
<taxonomicName id="98E04D11FFFFFFD25688F9C7FB98F9DB" authorityName="Bruggen" authorityYear="1909" box="[926,1086,1565,1587]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="14" pageNumber="2807" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFFFFFD25688F9C7FB98F9DB" box="[926,1086,1565,1587]" italics="true" pageId="14" pageNumber="2807">Ericthonius tolli</emphasis>
</taxonomicName>
), Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162. (A, B) Left gnathopods 1, 2, lateral views; (B1) posterior margin of propodus of left gnathopod 2, lateral view, setae omitted; (C, D) left pereopods 3, 4, lateral views; (E) basis–dactylus of left pereopod 5, lateral view; (E1) coxa and gill of left pereopod 5, lateral view; (F) basis–dactylus of right pereopod 6, lateral view; (F1) coxa of left pereopod 6, lateral view, gill lost. Scale: 0.1 mm.
</paragraph>
</caption>
<caption id="0B9F661AFFFEFFD35599FA10FD6FF945" ID-DOI="http://doi.org/10.5281/zenodo.5204809" ID-Zenodo-Dep="5204809" httpUri="https://zenodo.org/record/5204809/files/figure.png" pageId="15" pageNumber="2808" startId="15.[143,210,1482,1504]" targetBox="[145,1102,163,1450]" targetPageId="15">
<paragraph id="5F5F3692FFFEFFD35599FA10FD6FF945" blockId="15.[143,1104,1482,1709]" pageId="15" pageNumber="2808">
Figure 10.
<taxonomicName id="98E04D11FFFEFFD35410FA11FDCDFA08" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[262,619,1482,1505]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="15" pageNumber="2808" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFFEFFD35410FA11FE41FA09" box="[262,487,1483,1505]" italics="true" pageId="15" pageNumber="2808">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFFEFFD354EEFA10FDC2FA08" author="Sars GO" box="[504,612,1482,1504]" pageId="15" pageNumber="2808" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
(previously identified as
<taxonomicName id="98E04D11FFFEFFD35665FA11FBB3FA09" authorityName="Bruggen" authorityYear="1909" box="[883,1045,1483,1505]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="15" pageNumber="2808" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFFEFFD35665FA11FBB3FA09" box="[883,1045,1483,1505]" italics="true" pageId="15" pageNumber="2808">Ericthonius tolli</emphasis>
</taxonomicName>
). (A) Arctic Ocean, male, 8.3 mm, ZMUC-CRU-20162; (B–H) Baffin Bay, ovigerous female, 11.2 mm, ZMUC-CRU-20161. (A) Basis–dactylus of right pereopod 7, lateral view; (A1) coxa of left pereopod 7, lateral view; (B, C) left gnathopods 1, 2, lateral views, oostegite on gnathopod 2 omitted; (C1) posterior margins of carpus and propodus of left gnathopod 2, lateral view, slender setae omitted; (D) coxa and gill of left pereopod 3, lateral view, oostegite omitted; (E, F) left pereopods 4, 5, lateral views, oostegites omitted; (G) coxa and gill of left pereopod 6, lateral view; (H) coxa of left pereopod 7, lateral view. Scales: 0.1 mm.
</paragraph>
</caption>
<paragraph id="5F5F3692FFE1FFCC55E8FF72FB9BFDD6" blockId="16.[211,1172,167,797]" pageId="16" pageNumber="2809">
To clarify variation of the width of pereopod basis, the widths of pereopod 4 bases were measured in 24 individuals (six dissected specimens and 18 additional specimens).
<figureCitation id="C7DB2A17FFE1FFCC55C5FF3DFEE4FF17" box="[211,322,231,255]" captionStart="Figure 11" captionStartId="16.[211,278,1654,1676]" captionTargetBox="[211,1171,968,1621]" captionTargetId="figure-317@16.[211,1171,968,1621]" captionTargetPageId="16" captionText="Figure 11. Relationship between body length and width of basis in pereopod 4 of Ericthonius megalopus (Sars, 1879). Both sexes included." figureDoi="http://doi.org/10.5281/zenodo.5204811" httpUri="https://zenodo.org/record/5204811/files/figure.png" pageId="16" pageNumber="2809">Figure 11</figureCitation>
shows the relationship between body length and the width of the basis in pereopod 4. The width is larger with longer body length, but the relationship differs according to the locality of the specimens. The widths in the specimens previously identified as
<taxonomicName id="98E04D11FFE1FFCC5425FE92FED9FEB7" authorityName="Bruggen" authorityYear="1909" box="[307,383,327,351]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFE1FFCC5425FE92FED9FEB7" box="[307,383,327,351]" italics="true" pageId="16" pageNumber="2809">E. tolli</emphasis>
</taxonomicName>
from the Arctic Ocean and Baffin Bay are relatively larger than those in the specimens identified as
<taxonomicName id="98E04D11FFE1FFCC5725FEB2FD6FFE97" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[563,713,359,383]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE1FFCC5725FEB2FD6FFE97" box="[563,713,359,383]" italics="true" pageId="16" pageNumber="2809">E. megalopus</emphasis>
</taxonomicName>
from the Norwegian Sea; however, the two groups cannot be obviously separated. These facts suggest that all the specimens collected from various localities are included in the same species, whereas the width of the pereopod basis varies with the locality. With respect to other differences, the posterodistal projection of the merus of gnathopod 1 and the number of robust setae on female gnathopod 2 could be within intraspecific variation, and the posterodorsal notches on the coxae 5–7 seem to be changeable in the process of preparation.
</paragraph>
<paragraph id="5F5F3692FFE1FFCC55E8FD9CFCC0FCF5" blockId="16.[211,1172,167,797]" pageId="16" pageNumber="2809">
The present specimens match the original descriptions and figures of both
<taxonomicName id="98E04D11FFE1FFCC5124FD9DFEAAFD96" baseAuthorityName="Sars" baseAuthorityYear="1879" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE1FFCC5124FD9DFEAAFD96" italics="true" pageId="16" pageNumber="2809">E. megalopus</emphasis>
</taxonomicName>
and
<taxonomicName id="98E04D11FFE1FFCC545EFDBDFE30FD96" authorityName="Bruggen" authorityYear="1909" box="[328,406,614,638]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFE1FFCC545EFDBDFE30FD96" box="[328,406,614,638]" italics="true" pageId="16" pageNumber="2809">E. tolli</emphasis>
</taxonomicName>
, although only three and seven figures were presented, respectively (
<bibRefCitation id="3B714B63FFE1FFCC55CDFD5CFEE8FD76" author="Sars GO" box="[219,334,646,670]" pageId="16" pageNumber="2809" pagination="1 - 280" refId="ref7250" refString="Sars GO. 1885. Zoology. Crustacea, I. Norwegian North-Atlantic Expedition 1876 - 1878 6: 1 - 280, pls. 1 - 21." type="journal article" year="1885">Sars 1885</bibRefCitation>
;
<bibRefCitation id="3B714B63FFE1FFCC544BFD5CFDA6FD76" author="Bruggen E" box="[349,512,646,670]" pageId="16" pageNumber="2809" pagination="1 - 56" refId="ref6089" refString="Bruggen E. von der 1909. Beitrage zur Kenntnis der Amphipoden-Fauna der russischen Arctis. Memoires de l'Academie Imperiale des Sciences de St. - Petersbourg, 8 e Serie, Classe Physico-Mathematique 18 (16): 1 - 56, pls. 1 - 3." type="journal article" year="1909">Brüggen 1909</bibRefCitation>
). Because all the dissected specimens, including the male specimen identified as
<taxonomicName id="98E04D11FFE1FFCC54C2FD7DFD87FD56" authorityName="Bruggen" authorityYear="1909" box="[468,545,678,702]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFE1FFCC54C2FD7DFD87FD56" box="[468,545,678,702]" italics="true" pageId="16" pageNumber="2809">E. tolli</emphasis>
</taxonomicName>
by Brüggen, are assigned to the same species as stated above,
<taxonomicName id="98E04D11FFE1FFCC5434FD1CFED6FD36" authorityName="Bruggen" authorityYear="1909" box="[290,368,710,734]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFE1FFCC5434FD1CFED6FD36" box="[290,368,710,734]" italics="true" pageId="16" pageNumber="2809">E. tolli</emphasis>
</taxonomicName>
is synonymized with
<taxonomicName id="98E04D11FFE1FFCC5771FD1CFD5DFD36" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[615,763,710,734]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE1FFCC5771FD1CFD5DFD36" box="[615,763,710,734]" italics="true" pageId="16" pageNumber="2809">E. megalopus</emphasis>
</taxonomicName>
and all the specimens are identified as
<taxonomicName id="98E04D11FFE1FFCC55E4FD3CFE23FD15" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[242,389,741,765]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE1FFCC55E4FD3CFE23FD15" box="[242,389,741,765]" italics="true" pageId="16" pageNumber="2809">E. megalopus</emphasis>
</taxonomicName>
.
<bibRefCitation id="3B714B63FFE1FFCC5485FD3CFDE7FD15" author="Bruggen E" box="[403,577,741,766]" pageId="16" pageNumber="2809" pagination="1 - 56" refId="ref6089" refString="Bruggen E. von der 1909. Beitrage zur Kenntnis der Amphipoden-Fauna der russischen Arctis. Memoires de l'Academie Imperiale des Sciences de St. - Petersbourg, 8 e Serie, Classe Physico-Mathematique 18 (16): 1 - 56, pls. 1 - 3." type="journal article" year="1909">Brüggen (1909)</bibRefCitation>
described
<taxonomicName id="98E04D11FFE1FFCC57AFFD3CFCA3FD15" authorityName="Bruggen" authorityYear="1909" box="[697,773,741,765]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFE1FFCC57AFFD3CFCA3FD15" box="[697,773,741,765]" italics="true" pageId="16" pageNumber="2809">E. tolli</emphasis>
</taxonomicName>
without citing
<bibRefCitation id="3B714B63FFE1FFCC56A4FD3FFB8CFD15" author="Sars GO" box="[946,1066,741,765]" pageId="16" pageNumber="2809" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars (1879</bibRefCitation>
,
<bibRefCitation id="3B714B63FFE1FFCC5123FD3FFBCDFD15" author="Sars GO" box="[1077,1131,741,765]" pageId="16" pageNumber="2809" pagination="1 - 280" refId="ref7250" refString="Sars GO. 1885. Zoology. Crustacea, I. Norwegian North-Atlantic Expedition 1876 - 1878 6: 1 - 280, pls. 1 - 21." type="journal article" year="1885">1885</bibRefCitation>
) so he probably did not know of the existence of
<taxonomicName id="98E04D11FFE1FFCC57DBFCDCFCF9FCF5" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[717,863,773,797]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE1FFCC57DBFCDCFCF9FCF5" box="[717,863,773,797]" italics="true" pageId="16" pageNumber="2809">E. megalopus</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="5F5F3692FFE1FFCC55C5FCEFFE7AFCA5" blockId="16.[211,1171,821,941]" box="[211,476,821,845]" pageId="16" pageNumber="2809">
<emphasis id="6D94EA80FFE1FFCC55C5FCEFFEFEFCA5" box="[211,344,821,845]" italics="true" pageId="16" pageNumber="2809">Distribution</emphasis>
(
<figureCitation id="C7DB2A17FFE1FFCC5471FCEFFE72FCA5" box="[359,468,821,845]" captionStart="Figure 12" captionStartId="17.[143,210,1604,1626]" captionTargetBox="[145,1102,589,1571]" captionTargetId="figure-158@17.[145,1102,589,1571]" captionTargetPageId="17" captionText="Figure 12. World distribution of Ericthonius megalopus (Sars, 1879). Circles indicate localities in the records as Ericthonius megalopus; triangles indicate localities in the records as Ericthonius tolli; star indicates Sagami Bay (present record). “T” indicates the type locality." figureDoi="http://doi.org/10.5281/zenodo.5204813" httpUri="https://zenodo.org/record/5204813/files/figure.png" pageId="16" pageNumber="2809">Figure 12</figureCitation>
)
</paragraph>
<paragraph id="5F5F3692FFE1FFCC55C5FC8FFEEBFC45" blockId="16.[211,1171,821,941]" pageId="16" pageNumber="2809">
<taxonomicName id="98E04D11FFE1FFCC55C5FC8FFE68FC85" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[211,462,853,877]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE1FFCC55C5FC8FFE68FC85" box="[211,462,853,877]" italics="true" pageId="16" pageNumber="2809">Ericthonius megalopus</emphasis>
</taxonomicName>
has been recorded in many localities of the world. All of the records up to the present are shown as follows ([m]: record as
<taxonomicName id="98E04D11FFE1FFCC5690FCACFBBEFC65" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[902,1048,885,909]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE1FFCC5690FCACFBBEFC65" box="[902,1048,885,909]" italics="true" pageId="16" pageNumber="2809">E. megalopus</emphasis>
</taxonomicName>
; [t]: record as
<taxonomicName id="98E04D11FFE1FFCC55E7FC4CFE9BFC45" authorityName="Bruggen" authorityYear="1909" box="[241,317,917,941]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFE1FFCC55E7FC4CFE9BFC45" box="[241,317,917,941]" italics="true" pageId="16" pageNumber="2809">E. tolli</emphasis>
</taxonomicName>
).
</paragraph>
<caption id="0B9F661AFFE1FFCC55C5F9ACFD35F942" ID-DOI="http://doi.org/10.5281/zenodo.5204811" ID-Zenodo-Dep="5204811" httpUri="https://zenodo.org/record/5204811/files/figure.png" pageId="16" pageNumber="2809" startId="16.[211,278,1654,1676]" targetBox="[211,1171,968,1621]" targetPageId="16">
<paragraph id="5F5F3692FFE1FFCC55C5F9ACFD35F942" blockId="16.[211,1172,1654,1706]" pageId="16" pageNumber="2809">
Figure 11. Relationship between body length and width of basis in pereopod 4 of
<taxonomicName id="98E04D11FFE1FFCC5134F9ADFE1CF942" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="16" pageNumber="2809" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE1FFCC5134F9ADFE9CF942" italics="true" pageId="16" pageNumber="2809">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFE1FFCC545EF94EFE12F942" author="Sars GO" box="[328,436,1684,1706]" pageId="16" pageNumber="2809" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
. Both sexes included.
</paragraph>
</caption>
<paragraph id="5F5F3692FFE0FFCD5599FF72FD17FE16" blockId="17.[143,1104,167,510]" pageId="17" pageNumber="2810">
<emphasis id="6D94EA80FFE0FFCD5599FF72FE85FF28" box="[143,291,168,192]" italics="true" pageId="17" pageNumber="2810">Arctic Ocean</emphasis>
. Foxe Basin (
<bibRefCitation id="3B714B63FFE0FFCD54D0FF7DFCB5FF57" author="Atkinson EG &amp; Wacasey JW" box="[454,787,167,192]" pageId="17" pageNumber="2810" pagination="1 - 98" refId="ref5965" refString="Atkinson EG, Wacasey JW. 1989. Benthic invertebrates collected from Hudson Strait, Foxe Channel and Foxe Basin, Canada, 1949 to 1970. Can Data Rep Fish Aquat Sci. 746: 1 - 98" type="journal article" year="1989">Atkinson and Wacasey 1989</bibRefCitation>
, 49–
<quantity id="98189B77FFE0FFCD565FFF7DFC22FF57" box="[841,900,167,191]" metricMagnitude="1" metricUnit="m" metricValue="9.2" pageId="17" pageNumber="2810" unit="m" value="92.0">92 m</quantity>
[t]), Hudson Bay (
<bibRefCitation id="3B714B63FFE0FFCD5581FF1DFEFCFF37" author="Shoemaker CR" box="[151,346,199,223]" pageId="17" pageNumber="2810" pagination="3 - 11" refId="ref7279" refString="Shoemaker CR. 1926. Results of the Hudson Bay Expedition in 1920. V. Report on the marine amphipods collected in Hudson and James Bays, by Frits Johansen in the summer of 1920. Cont Can Biol Fish, New Ser. 3 (1): 3 - 11." type="journal article" year="1926">
Shoemaker
<quantity id="98189B77FFE0FFCD5434FF1DFEFCFF37" box="[290,346,199,223]" metricMagnitude="6" metricUnit="m" metricValue="1.9261279999999998" pageId="17" pageNumber="2810" unit="m" value="1926128.0">1926</quantity>
</bibRefCitation>
, 128 m [t]), Hudson Strait (
<bibRefCitation id="3B714B63FFE0FFCD57B1FF1DFCE3FF37" author="Dunbar MJ" box="[679,837,199,223]" pageId="17" pageNumber="2810" pagination="709 - 798" refId="ref6263" refString="Dunbar MJ. 1954. The amphipod Crustacea of Ungava Bay, Canadian Eastern Arctic. J Fish Res Bd Canada. 11: 709 - 798." type="journal article" year="1954">Dunbar 1954</bibRefCitation>
, 18–
<quantity id="98189B77FFE0FFCD566DFF1DFC63FF37" box="[891,965,199,223]" metricMagnitude="2" metricUnit="m" metricValue="2.75" pageId="17" pageNumber="2810" unit="m" value="275.0">275 m</quantity>
[t];
<bibRefCitation id="3B714B63FFE0FFCD56ECFF1DFEA9FF17" author="Stewart PL &amp; Pocklington P &amp; Cunjak RA" pageId="17" pageNumber="2810" pagination="281 - 291" refId="ref7581" refString="Stewart PL, Pocklington P, Cunjak RA. 1985. Distribution, abundance and diversity of benthic macroinvertebrates on the Canadian continental shelf and slope of Southern Davis Strait and Ungava Bay. Arctic 38: 281 - 291." type="journal article" year="1985">Stewart et al. 1985</bibRefCitation>
, 106–
<quantity id="98189B77FFE0FFCD5440FF3DFE39FF17" box="[342,415,231,255]" metricMagnitude="2" metricUnit="m" metricValue="1.45" pageId="17" pageNumber="2810" unit="m" value="145.0">145 m</quantity>
[t];
<bibRefCitation id="3B714B63FFE0FFCD54C3FF32FC81FF17" author="Wacasey JW &amp; Atkinson EG" box="[469,807,231,256]" pageId="17" pageNumber="2810" pagination="1 - 68" refId="ref7778" refString="Wacasey JW, Atkinson EG. 1987. Benthic invertebrates collected from Ungava Bay, Canada, 1947 - 1951. Can Tech Rep Fish Aquat Sci. 1537: 1 - 68." type="journal article" year="1987">Wacasey and Atkinson 1987</bibRefCitation>
, shore–
<quantity id="98189B77FFE0FFCD5697FF3DFC6AFF17" box="[897,972,231,255]" metricMagnitude="2" metricUnit="m" metricValue="2.55" pageId="17" pageNumber="2810" unit="m" value="255.0">255 m</quantity>
[t]), Baffin Bay (
<bibRefCitation id="3B714B63FFE0FFCD55DAFEDDFEE9FEF7" author="Ohlin A" box="[204,335,263,287]" pageId="17" pageNumber="2810" pagination="1 - 70" refId="ref7108" refString="Ohlin A. 1895. Bidrag till Kannedomen om Malakostrakfaunan I Baffin Bay och Smith Sound. Acta Universitatis Lundensis, Lunds Universitet Ars-Skrifter 31 (6): 1 - 70, 1 pl." type="journal article" year="1895">Ohlin 1895</bibRefCitation>
, 9–
<quantity id="98189B77FFE0FFCD546EFEDDFE14FEF7" box="[376,434,263,287]" metricMagnitude="1" metricUnit="m" metricValue="3.7" pageId="17" pageNumber="2810" unit="m" value="37.0">37 m</quantity>
[m];
<bibRefCitation id="3B714B63FFE0FFCD54E7FEDDFD14FEF7" author="Stephensen K" box="[497,690,263,287]" pageId="17" pageNumber="2810" pagination="1 - 88" refId="ref7479" refString="Stephensen K. 1933. Amphipoda. The Godthaab Expedition 1928. Meddelelser om Gronland 79 (7): 1 - 88." type="journal article" year="1933">Stephensen 1933</bibRefCitation>
, 85 m [t]), Davis Strait (
<bibRefCitation id="3B714B63FFE0FFCD56D9FEDDFF61FED7" author="Stephensen K" pageId="17" pageNumber="2810" pagination="53 - 77" refId="ref7430" refString="Stephensen K. 1915. Account of the Crustacea and the Pycnogonida collected by Dr. V. Nordmann in the summer of 1911 from northern Stromfjord and Giesecke Lake in west Greenland. Meddelelser om Gronland 51: 53 - 77, pls. 1 - 8." type="journal article" year="1915">Stephensen 1915</bibRefCitation>
, 360–
<quantity id="98189B77FFE0FFCD5411FEFDFEEAFED7" box="[263,332,295,319]" metricMagnitude="2" metricUnit="m" metricValue="4.1" pageId="17" pageNumber="2810" unit="m" value="410.0">410 m</quantity>
[m]),
<collectingCountry id="27F77602FFE0FFCD5498FEFDFDA3FED7" box="[398,517,295,319]" name="Greenland" pageId="17" pageNumber="2810">Greenland</collectingCountry>
Sea (
<bibRefCitation id="3B714B63FFE0FFCD5755FEFDFD7FFED7" author="Hansen HJ" box="[579,729,295,319]" pageId="17" pageNumber="2810" pagination="121 - 132" refId="ref6603" refString="Hansen HJ. 1895. Pycnogonider og Malacostrake Krebsdyr. Meddelelser om Gronland 19: 121 - 132." type="journal article" year="1895">
Hansen
<quantity id="98189B77FFE0FFCD57B7FEFDFD7FFED7" box="[673,729,295,319]" metricMagnitude="6" metricUnit="m" metricValue="1.895176" pageId="17" pageNumber="2810" unit="m" value="1895176.0">1895</quantity>
</bibRefCitation>
, 176 m [m];
<bibRefCitation id="3B714B63FFE0FFCD5674FEFDFBBBFED7" author="Stephensen K" box="[866,1053,295,319]" pageId="17" pageNumber="2810" pagination="363 - 526" refId="ref7503" refString="Stephensen K. 1942. The Amphipoda of N. Norway and Spitsbergen with adjacent waters. Tromso Museums Skrifter 3: 363 - 526." type="journal article" year="1942">Stephensen 1942</bibRefCitation>
[m];
<bibRefCitation id="3B714B63FFE0FFCD5599FE9DFEFAFEB7" author="Stephensen K" box="[143,348,327,351]" pageId="17" pageNumber="2810" pagination="1 - 165" refId="ref7529" refString="Stephensen K. 1944 a. The zoology of east Greenland. Amphipoda. Meddelelser om Gronland 121 (14): 1 - 165." type="journal article" year="1944">Stephensen 1944a</bibRefCitation>
,
<quantity id="98189B77FFE0FFCD547CFE9DFE17FEB7" box="[362,433,327,351]" metricMagnitude="2" metricUnit="m" metricValue="1.85" pageId="17" pageNumber="2810" unit="m" value="185.0">185 m</quantity>
[m];
<bibRefCitation id="3B714B63FFE0FFCD54F8FE9DFDD9FEB7" author="Brandt A" box="[494,639,327,351]" pageId="17" pageNumber="2810" pagination="1533 - 1556" refId="ref6043" refString="Brandt A. 1997. Biodiversity of peracarid crustaceans (Malacostraca) from the shelf down to the deep Arctic Ocean. Biodivers Conserv. 6: 1533 - 1556." type="journal article" year="1997">Brandt 1997</bibRefCitation>
, 45 m [t]), Barents Sea (
<bibRefCitation id="3B714B63FFE0FFCD5680FE9DFBE9FEB7" author="Gurjanova EF" box="[918,1103,327,351]" pageId="17" pageNumber="2810" pagination="196 - 204" refId="ref6291" refString="Gurjanova EF. 1931. Zur Amphipoda- und Isopoda-Fauna der ostlichen Murmankuste (im Gebiet der Portschnicha-Bucht). Transactions of the Institute for Scientific Exploration of the North 48: 196 - 204 (in Russian with German abstract)." type="journal article" year="1931">Gurjanova 1931</bibRefCitation>
[m];
<bibRefCitation id="3B714B63FFE0FFCD55D4FEBDFEDFFE97" author="Gurjanova EF" box="[194,377,359,383]" pageId="17" pageNumber="2810" refId="ref6474" refString="Gurjanova EF. 1951. Amphipods of the Seas of the USSR and Adjacent Waters (Amphipoda- Gammaridea) (Identification of Fauna USSR Volume 41). Moscow / Leningrad: Akademia Nauk SSSR. 1031 pp. (in Russian)." type="book" year="1951">Gurjanova 1951</bibRefCitation>
[m]), White Sea (
<bibRefCitation id="3B714B63FFE0FFCD5728FEBDFD47FE97" author="Derjugin KM" box="[574,737,359,383]" pageId="17" pageNumber="2810" pagination="1 - 511" refId="ref6224" refString="Derjugin KM. 1928. Fauna of the White Sea and condition of its existence. State Hydrol Inst, Seas Res. 7 / 8: 1 - 511 (in Russian) [not seen]." type="journal article" year="1928">Derjugin 1928</bibRefCitation>
[m];
<bibRefCitation id="3B714B63FFE0FFCD560DFEBDFC74FE97" author="Gurjanova EF" box="[795,978,359,383]" pageId="17" pageNumber="2810" refId="ref6474" refString="Gurjanova EF. 1951. Amphipods of the Seas of the USSR and Adjacent Waters (Amphipoda- Gammaridea) (Identification of Fauna USSR Volume 41). Moscow / Leningrad: Akademia Nauk SSSR. 1031 pp. (in Russian)." type="book" year="1951">Gurjanova 1951</bibRefCitation>
[m]), Kara Sea (
<bibRefCitation id="3B714B63FFE0FFCD55D3FE5CFED8FE76" author="Gurjanova EF" box="[197,382,390,414]" pageId="17" pageNumber="2810" pagination="145 - 152" refId="ref6401" refString="Gurjanova EF. 1936. Beitrage zur Amphipodenfauna des Karischen Meeres. Zool Anz. 116: 145 - 152." type="journal article" year="1936">Gurjanova 1936</bibRefCitation>
, 10 m [m],
<quantity id="98189B77FFE0FFCD54E1FE5CFD9DFE76" box="[503,571,390,414]" metricMagnitude="2" metricUnit="m" metricValue="3.6799999999999997" pageId="17" pageNumber="2810" unit="m" value="368.0">368 m</quantity>
[t];
<bibRefCitation id="3B714B63FFE0FFCD5770FE5DFCF7FE76" author="Jorgensen LL &amp; Pearson TH &amp; Anisimova NA &amp; Gulliksen B &amp; Dahle S &amp; Denisenko SG &amp; Matishov GG" box="[614,849,390,415]" pageId="17" pageNumber="2810" pagination="395 - 416" refId="ref6766" refString="Jorgensen LL, Pearson TH, Anisimova NA, Gulliksen B, Dahle S, Denisenko SG, Matishov GG. 1999. Environmental influences on benthic fauna associations of the Kara Sea (Arctic Russia). Polar Biol. 22: 395 - 416." type="journal article" year="1999">Jørgensen et al. 1999</bibRefCitation>
, 30 m [m]), Laptev Sea (
<bibRefCitation id="3B714B63FFE0FFCD5581FE7CFEEBFE56" author="Gurjanova EF" box="[151,333,422,446]" pageId="17" pageNumber="2810" pagination="157 - 187" refId="ref6333" refString="Gurjanova EF. 1932. Some contributions to the fauna of Crustacea of the Brothers Laptev's Sea (of Nordenskjold's Sea). Gosudarstvennyi Gidrolog-icheskii Institut, Issledovaniia Morei SSSR 15: 157 - 187, 4 pls (in Russian) [not seen]." type="book chapter" year="1932">Gurjanova 1932</bibRefCitation>
[t];
<bibRefCitation id="3B714B63FFE0FFCD546EFE7CFD96FE56" author="Gurjanova EF" box="[376,560,422,446]" pageId="17" pageNumber="2810" pagination="555 - 571" refId="ref6380" refString="Gurjanova EF. 1934. Zur Zoogeographie der Crustacea Malacostraca des Arktischen Gebietes. Zoogeographica 2: 555 - 571." type="journal article" year="1934">Gurjanova 1934</bibRefCitation>
, 24–
<quantity id="98189B77FFE0FFCD5775FE7CFD3CFE56" box="[611,666,422,446]" metricMagnitude="1" metricUnit="m" metricValue="4.0" pageId="17" pageNumber="2810" unit="m" value="40.0">40 m</quantity>
[m]), East Siberian Sea (
<bibRefCitation id="3B714B63FFE0FFCD56BAFE7CFBEDFE56" author="Bruggen E" box="[940,1099,422,446]" pageId="17" pageNumber="2810" pagination="1 - 56" refId="ref6089" refString="Bruggen E. von der 1909. Beitrage zur Kenntnis der Amphipoden-Fauna der russischen Arctis. Memoires de l'Academie Imperiale des Sciences de St. - Petersbourg, 8 e Serie, Classe Physico-Mathematique 18 (16): 1 - 56, pls. 1 - 3." type="journal article" year="1909">Brüggen 1909</bibRefCitation>
, 42 m [t],
<typeStatus id="805B8830FFE0FFCD55E3FE1DFE83FE37" box="[245,293,455,479]" pageId="17" pageNumber="2810">type</typeStatus>
locality of “
<taxonomicName id="98E04D11FFE0FFCD54A2FE1DFDA6FE37" authorityName="Bruggen" authorityYear="1909" box="[436,512,455,479]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="17" pageNumber="2810" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFE0FFCD54A2FE1DFDA6FE37" box="[436,512,455,479]" italics="true" pageId="17" pageNumber="2810">E. tolli</emphasis>
</taxonomicName>
”), Chukchi Sea (
<bibRefCitation id="3B714B63FFE0FFCD57D2FE1CFCDAFE36" author="Gurjanova EF" box="[708,892,454,478]" pageId="17" pageNumber="2810" refId="ref6474" refString="Gurjanova EF. 1951. Amphipods of the Seas of the USSR and Adjacent Waters (Amphipoda- Gammaridea) (Identification of Fauna USSR Volume 41). Moscow / Leningrad: Akademia Nauk SSSR. 1031 pp. (in Russian)." type="book" year="1951">Gurjanova 1951</bibRefCitation>
[m]), Chukchi Sea or Beaufort Sea (
<bibRefCitation id="3B714B63FFE0FFCD5458FE3CFDAAFE16" author="Shoemaker CR" box="[334,524,486,510]" pageId="17" pageNumber="2810" pagination="1 - 78" refId="ref7333" refString="Shoemaker CR. 1955. Amphipoda collected at the Arctic Laboratory, Office of Naval Research, Point Barrow, Alaska, by G. E. MacGinitie. Smith Misc Coll. 128 (1): 1 - 78." type="journal article" year="1955">Shoemaker 1955</bibRefCitation>
, 38–
<quantity id="98189B77FFE0FFCD5756FE3CFD22FE16" box="[576,644,486,510]" metricMagnitude="2" metricUnit="m" metricValue="1.3599999999999999" pageId="17" pageNumber="2810" unit="m" value="136.0">136 m</quantity>
[t]).
</paragraph>
<caption id="0B9F661AFFE0FFCD5599F99EFC0AF97D" ID-DOI="http://doi.org/10.5281/zenodo.5204813" ID-Zenodo-Dep="5204813" httpUri="https://zenodo.org/record/5204813/files/figure.png" pageId="17" pageNumber="2810" startId="17.[143,210,1604,1626]" targetBox="[145,1102,589,1571]" targetPageId="17">
<paragraph id="5F5F3692FFE0FFCD5599F99EFC0AF97D" blockId="17.[143,1104,1604,1685]" pageId="17" pageNumber="2810">
Figure 12. World distribution of
<taxonomicName id="98E04D11FFE0FFCD54F3F99FFCEEF9B2" authority="(Sars, 1879)" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[485,840,1604,1627]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="17" pageNumber="2810" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE0FFCD54F3F99FFD63F9B3" box="[485,709,1605,1627]" italics="true" pageId="17" pageNumber="2810">Ericthonius megalopus</emphasis>
(
<bibRefCitation id="3B714B63FFE0FFCD57C2F99EFCE7F9B2" author="Sars GO" box="[724,833,1604,1626]" pageId="17" pageNumber="2810" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars, 1879</bibRefCitation>
)
</taxonomicName>
. Circles indicate localities in the records as
<taxonomicName id="98E04D11FFE0FFCD542FF9B8FDBEF990" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[313,536,1634,1656]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="17" pageNumber="2810" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE0FFCD542FF9B8FDBEF990" box="[313,536,1634,1656]" italics="true" pageId="17" pageNumber="2810">Ericthonius megalopus</emphasis>
</taxonomicName>
; triangles indicate localities in the records as
<taxonomicName id="98E04D11FFE0FFCD56C8F9B8FF10F97D" authorityName="Bruggen" authorityYear="1909" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="17" pageNumber="2810" phylum="Arthropoda" rank="species" species="tolli">
<emphasis id="6D94EA80FFE0FFCD56C8F9B8FF10F97D" italics="true" pageId="17" pageNumber="2810">Ericthonius tolli</emphasis>
</taxonomicName>
; star indicates Sagami Bay (present record). “T” indicates the type locality.
</paragraph>
</caption>
<paragraph id="5F5F3692FFE3FFCE55C5FF72FCA6FE56" blockId="18.[211,1172,167,447]" pageId="18" pageNumber="2811">
<emphasis id="6D94EA80FFE3FFCE55C5FF72FEDBFF28" box="[211,381,168,192]" italics="true" pageId="18" pageNumber="2811">Atlantic Ocean</emphasis>
. Gulf of Saint Lawrence (Saint-Marie and Brunel
<quantity id="98189B77FFE3FFCE56C5FF7DFBC4FF57" box="[979,1122,167,191]" metricMagnitude="6" metricUnit="m" metricValue="1.9851189999999999" pageId="18" pageNumber="2811" unit="m" value="1985119.0">1985, 119 m</quantity>
[t]), Labrador Sea (
<bibRefCitation id="3B714B63FFE3FFCE546AFF1DFDB4FF37" author="Hansen HJ" box="[380,530,199,223]" pageId="18" pageNumber="2811" pagination="5 - 226" refId="ref6563" refString="Hansen HJ. 1888. Malacostraca marina Groenlandiae occidentalis. Oversigt over det vestlige Gronlands Fauna af malakostrake Havkrebsdyr. Videnskabelige Meddelelser fra den Naturhistorisk Forening i Kjobenhavn 1887: 5 - 226, pls. 2 - 7." type="journal article" year="1888">Hansen 1888</bibRefCitation>
, 88–
<quantity id="98189B77FFE3FFCE5753FF1DFD2CFF37" box="[581,650,199,223]" metricMagnitude="2" metricUnit="m" metricValue="3.35" pageId="18" pageNumber="2811" unit="m" value="335.0">335 m</quantity>
[m];
<bibRefCitation id="3B714B63FFE3FFCE57D5FF1DFC27FF37" author="Stephensen K" box="[707,897,199,223]" pageId="18" pageNumber="2811" pagination="1 - 88" refId="ref7479" refString="Stephensen K. 1933. Amphipoda. The Godthaab Expedition 1928. Meddelelser om Gronland 79 (7): 1 - 88." type="journal article" year="1933">
Stephensen
<quantity id="98189B77FFE3FFCE565FFF1DFC27FF37" box="[841,897,199,223]" metricMagnitude="6" metricUnit="m" metricValue="1.9333139999999998" pageId="18" pageNumber="2811" unit="m" value="1933314.0">1933</quantity>
</bibRefCitation>
, 314 m [m?];
<bibRefCitation id="3B714B63FFE3FFCE5102FF1DFEBCFF17" author="Stephensen K" pageId="18" pageNumber="2811" pagination="1 - 51" refId="ref7555" refString="Stephensen K. 1944 b. Crustacea Malacostraca VIII (Amphipoda IV). Danish Ingolf- Expedition 3 (13): 1 - 51." type="journal article" year="1944">Stephensen 1944b</bibRefCitation>
,
<quantity id="98189B77FFE3FFCE543AFF3DFE20FF17" box="[300,390,231,255]" metricMagnitude="3" metricUnit="m" metricValue="1.0959999999999999" pageId="18" pageNumber="2811" unit="m" value="1096.0">1096 m</quantity>
[m];
<bibRefCitation id="3B714B63FFE3FFCE54DBFF32FCAEFF17" author="Myers AA &amp; McGrath D" box="[461,776,231,256]" pageId="18" pageNumber="2811" pagination="379 - 400" refId="ref7031" refString="Myers AA, McGrath D. 1984. A revision of the north-east Atlantic species of Ericthonius (Crustacea: Amphipoda). J Mar Biol Assoc UK. 64: 379 - 400." type="journal article" year="1984">Myers and McGrath 1984</bibRefCitation>
[m];
<bibRefCitation id="3B714B63FFE3FFCE5646FF3DFB29FF17" author="Stransky B &amp; Brandt A" box="[848,1167,231,255]" pageId="18" pageNumber="2811" pagination="851 - 867" refId="ref7622" refString="Stransky B, Brandt A. 2010. Occurrence, diversity and community structures of peracarid crustaceans (Crustacea, Malacostraca) along the southern shelf of Greenland. Polar Biol. 33: 851 - 867." type="journal article" year="2010">Stransky and Brandt 2010</bibRefCitation>
, 109–
<quantity id="98189B77FFE3FFCE541FFEDDFEF4FEF7" box="[265,338,263,287]" metricMagnitude="2" metricUnit="m" metricValue="1.54" pageId="18" pageNumber="2811" unit="m" value="154.0">154 m</quantity>
[m]),
<collectingCountry id="27F77602FFE3FFCE5488FEDDFDACFEF7" box="[414,522,263,287]" name="Denmark" pageId="18" pageNumber="2811">Denmark</collectingCountry>
Strait (
<bibRefCitation id="3B714B63FFE3FFCE577EFEDDFC8BFEF7" author="Stephensen K" box="[616,813,263,287]" pageId="18" pageNumber="2811" pagination="503 - 630" refId="ref7393" refString="Stephensen K. 1912. Report on the Malacostraca Pycnogonida and some Entomostraca collected by the Danmark Expedition to north-east Greenland. Meddelelser om Gronland 45: 503 - 630, pls. 39 - 43." type="journal article" year="1912">Stephensen 1912</bibRefCitation>
, 92 m [m];
<bibRefCitation id="3B714B63FFE3FFCE56ABFEDDFB29FEF7" author="Stephensen K" box="[957,1167,263,287]" pageId="18" pageNumber="2811" pagination="1 - 51" refId="ref7555" refString="Stephensen K. 1944 b. Crustacea Malacostraca VIII (Amphipoda IV). Danish Ingolf- Expedition 3 (13): 1 - 51." type="journal article" year="1944">Stephensen 1944b</bibRefCitation>
,
<quantity id="98189B77FFE3FFCE55C5FEFDFEF3FED7" box="[211,341,295,319]" metricMagnitude="2" metricUnit="m" metricValue="6.1049999999999995" metricValueMax="6.21" metricValueMin="6.0" pageId="18" pageNumber="2811" unit="m" value="610.5" valueMax="621.0" valueMin="600.0">600–621 m</quantity>
[m];
<bibRefCitation id="3B714B63FFE3FFCE548BFEF2FD7FFED7" author="Myers AA &amp; McGrath D" box="[413,729,295,320]" pageId="18" pageNumber="2811" pagination="379 - 400" refId="ref7031" refString="Myers AA, McGrath D. 1984. A revision of the north-east Atlantic species of Ericthonius (Crustacea: Amphipoda). J Mar Biol Assoc UK. 64: 379 - 400." type="journal article" year="1984">Myers and McGrath 1984</bibRefCitation>
[m];
<bibRefCitation id="3B714B63FFE3FFCE5634FEFDFB29FED7" author="Stransky B &amp; Svavarsson J" box="[802,1167,295,319]" pageId="18" pageNumber="2811" pagination="125 - 139" refId="ref7660" refString="Stransky B, Svavarsson J. 2010. Diversity and species composition of paracarids (Crustacea: Malacostraca) on the South Greenland shelf: spatial and temporal variation. Polar Biol. 33: 125 - 139." type="journal article" year="2010">
Stransky and Svavarsson
<quantity id="98189B77FFE3FFCE5141FEFDFB29FED7" box="[1111,1167,295,319]" metricMagnitude="6" metricUnit="m" metricValue="2.010161" pageId="18" pageNumber="2811" unit="m" value="2010161.0">2010</quantity>
</bibRefCitation>
, 161 m [m];
<bibRefCitation id="3B714B63FFE3FFCE5443FE9DFD25FEB7" author="Stransky B &amp; Brandt A" box="[341,643,327,351]" pageId="18" pageNumber="2811" pagination="851 - 867" refId="ref7622" refString="Stransky B, Brandt A. 2010. Occurrence, diversity and community structures of peracarid crustaceans (Crustacea, Malacostraca) along the southern shelf of Greenland. Polar Biol. 33: 851 - 867." type="journal article" year="2010">
Stransky and Brandt
<quantity id="98189B77FFE3FFCE575DFE9DFD25FEB7" box="[587,643,327,351]" metricMagnitude="6" metricUnit="m" metricValue="2.010162" pageId="18" pageNumber="2811" unit="m" value="2010162.0">2010</quantity>
</bibRefCitation>
, 162 m [m]), Norwegian Sea (
<bibRefCitation id="3B714B63FFE3FFCE56CEFE9DFBECFEB7" author="Sars GO" box="[984,1098,327,351]" pageId="18" pageNumber="2811" pagination="427 - 476" refId="ref7213" refString="Sars GO. 1879. Crustacea et Pycnogonida nova in itinere 2 do et 3 tio expeditionis Norvegicae anno 1877 &amp; 78 collecta (Prodromus descriptionis). Archiv mathematik naturvidenskab 4: 427 - 476." type="journal article" year="1879">Sars 1879</bibRefCitation>
,
<bibRefCitation id="3B714B63FFE3FFCE5141FE9DFB29FEB7" author="Sars GO" box="[1111,1167,327,351]" pageId="18" pageNumber="2811" pagination="1 - 280" refId="ref7250" refString="Sars GO. 1885. Zoology. Crustacea, I. Norwegian North-Atlantic Expedition 1876 - 1878 6: 1 - 280, pls. 1 - 21." type="journal article" year="1885">1885</bibRefCitation>
, 128–
<quantity id="98189B77FFE3FFCE541EFEBDFEC7FE96" box="[264,353,359,383]" metricMagnitude="3" metricUnit="m" metricValue="1.134" pageId="18" pageNumber="2811" unit="m" value="1134.0">1134 m</quantity>
[m],
<typeStatus id="805B8830FFE3FFCE54B0FEBDFE70FE97" box="[422,470,359,383]" pageId="18" pageNumber="2811">type</typeStatus>
locality of
<taxonomicName id="98E04D11FFE3FFCE577EFEB2FCA7FE97" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[616,769,359,383]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="18" pageNumber="2811" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE3FFCE577EFEB2FCA7FE97" box="[616,769,359,383]" italics="true" pageId="18" pageNumber="2811">E. megalopus</emphasis>
</taxonomicName>
;
<bibRefCitation id="3B714B63FFE3FFCE5603FEBDFC1AFE97" author="Stebbing TRR" box="[789,956,359,383]" pageId="18" pageNumber="2811" pagination="1 - 806" refId="ref7375" refString="Stebbing TRR. 1906. Amphipoda I. Gammaridea. Das Tierreich 21: 1 - 806." type="journal article" year="1906">Stebbing 1906</bibRefCitation>
, 179–
<quantity id="98189B77FFE3FFCE5115FEBDFBFDFE96" box="[1027,1115,359,383]" metricMagnitude="3" metricUnit="m" metricValue="1.217" pageId="18" pageNumber="2811" unit="m" value="1217.0">1217 m</quantity>
[m];
<bibRefCitation id="3B714B63FFE3FFCE55C5FE5CFE32FE76" author="Stephensen K" box="[211,404,390,414]" pageId="18" pageNumber="2811" pagination="503 - 630" refId="ref7393" refString="Stephensen K. 1912. Report on the Malacostraca Pycnogonida and some Entomostraca collected by the Danmark Expedition to north-east Greenland. Meddelelser om Gronland 45: 503 - 630, pls. 39 - 43." type="journal article" year="1912">Stephensen 1912</bibRefCitation>
, 174–
<quantity id="98189B77FFE3FFCE54C1FE5CFD8AFE76" box="[471,556,390,414]" metricMagnitude="3" metricUnit="m" metricValue="1.159" pageId="18" pageNumber="2811" unit="m" value="1159.0">1159 m</quantity>
[m];
<bibRefCitation id="3B714B63FFE3FFCE577DFE5CFC8DFE76" author="Stephensen K" box="[619,811,390,414]" pageId="18" pageNumber="2811" pagination="363 - 526" refId="ref7503" refString="Stephensen K. 1942. The Amphipoda of N. Norway and Spitsbergen with adjacent waters. Tromso Museums Skrifter 3: 363 - 526." type="journal article" year="1942">
Stephensen
<quantity id="98189B77FFE3FFCE57E5FE5CFC8DFE76" box="[755,811,390,414]" metricMagnitude="6" metricUnit="m" metricValue="1.942911" pageId="18" pageNumber="2811" unit="m" value="1942911.0">1942</quantity>
</bibRefCitation>
, 911 m [m];
<bibRefCitation id="3B714B63FFE3FFCE56A9FE5CFB29FE76" author="Stephensen K" box="[959,1167,390,414]" pageId="18" pageNumber="2811" pagination="1 - 51" refId="ref7555" refString="Stephensen K. 1944 b. Crustacea Malacostraca VIII (Amphipoda IV). Danish Ingolf- Expedition 3 (13): 1 - 51." type="journal article" year="1944">Stephensen 1944b</bibRefCitation>
,
<quantity id="98189B77FFE3FFCE55C5FE7CFECEFE56" box="[211,360,422,446]" metricMagnitude="3" metricUnit="m" metricValue="1.113" metricValueMax="1.2" metricValueMin="1.026" pageId="18" pageNumber="2811" unit="m" value="1113.0" valueMax="1200.0" valueMin="1026.0">1026–1200 m</quantity>
[m];
<bibRefCitation id="3B714B63FFE3FFCE54B6FE7DFD63FE56" author="Myers AA &amp; McGrath D" box="[416,709,422,447]" pageId="18" pageNumber="2811" pagination="379 - 400" refId="ref7031" refString="Myers AA, McGrath D. 1984. A revision of the north-east Atlantic species of Ericthonius (Crustacea: Amphipoda). J Mar Biol Assoc UK. 64: 379 - 400." type="journal article" year="1984">Myers and McGrath 1984</bibRefCitation>
[m]).
</paragraph>
<paragraph id="5F5F3692FFE3FFCE55C5FE0CFECBFD45" blockId="18.[211,1172,470,1068]" pageId="18" pageNumber="2811">
<emphasis id="6D94EA80FFE3FFCE55C5FE0CFED6FE06" box="[211,368,470,494]" italics="true" pageId="18" pageNumber="2811">Pacific Ocean</emphasis>
. Sagami Bay (present study,
<quantity id="98189B77FFE3FFCE57D9FE0CFC8FFE06" box="[719,809,470,494]" metricMagnitude="3" metricUnit="m" metricValue="1.456" pageId="18" pageNumber="2811" unit="m" value="1456.0">1456 m</quantity>
), Sea of
<collectingCountry id="27F77602FFE3FFCE568CFE0DFC7AFE06" box="[922,988,471,494]" name="Japan" pageId="18" pageNumber="2811">Japan</collectingCountry>
(
<bibRefCitation id="3B714B63FFE3FFCE56F9FE0CFB35FE06" author="Derjavin A" box="[1007,1171,470,494]" pageId="18" pageNumber="2811" pagination="326 - 329" refId="ref6185" refString="Derjavin A. 1930. Arctic elements in the fauna of peracarids of the Sea of Japan. Hydrobiological Journal SSSR 8 (10 - 12): 326 - 329 (in Russian with English abstract)." type="journal article" year="1930">Derjavin 1930</bibRefCitation>
[t];
<bibRefCitation id="3B714B63FFE3FFCE55EDFE2CFE10FDE6" author="Gurjanova EF" box="[251,438,502,526]" pageId="18" pageNumber="2811" pagination="241 - 404" refId="ref6422" refString="Gurjanova EF. 1938. Amphipoda Gammaroidea of Siaukhu Bay and Sudzukhe Bay (Japan Sea). Reports of the Japan Sea Hydrobiological Expedition of the Zoological Institute of the Academy of Sciences of the USSR in 1934 1: 241 - 404 (in Russian with English abstract)." type="journal article" year="1938">Gurjanova 1938</bibRefCitation>
, 35–
<quantity id="98189B77FFE3FFCE54FBFE2CFD92FDE6" box="[493,564,502,526]" metricMagnitude="2" metricUnit="m" metricValue="1.05" pageId="18" pageNumber="2811" unit="m" value="105.0">105 m</quantity>
[t];
<bibRefCitation id="3B714B63FFE3FFCE5773FE2CFCBBFDE6" author="Gurjanova EF" box="[613,797,502,526]" pageId="18" pageNumber="2811" refId="ref6474" refString="Gurjanova EF. 1951. Amphipods of the Seas of the USSR and Adjacent Waters (Amphipoda- Gammaridea) (Identification of Fauna USSR Volume 41). Moscow / Leningrad: Akademia Nauk SSSR. 1031 pp. (in Russian)." type="book" year="1951">Gurjanova 1951</bibRefCitation>
[t];
<bibRefCitation id="3B714B63FFE3FFCE5659FE2CFBA1FDE6" author="Gurjanova EF" box="[847,1031,502,526]" pageId="18" pageNumber="2811" pagination="220 - 227" refId="ref6518" refString="Gurjanova EF. 1959. A list of the fauna of the sea waters of the South Sakhalin and South Kuril Islands. Order Amphipoda. Studies of the Far Eastern seas of the USSR 6: 220 - 227 (in Russian)." type="journal article" year="1959">Gurjanova 1959</bibRefCitation>
[t];
<bibRefCitation id="3B714B63FFE3FFCE512FFE2DFEF0FDC6" author="Ivanova MB &amp; Belogurova LS &amp; Tsurpalo AP" pageId="18" pageNumber="2811" pagination="87 - 146" refId="ref6694" refString="Ivanova MB, Belogurova LS, Tsurpalo AP. 2009. Ecological Studies and the State of the Ecosystem of Amursky Bay and Estuarine Zone of the Razdolnaya River (Sea of Japan). Vol. 2. Vladivostok: Dalnauka. Composition and distribution of benthos in the intertidal zone of Russky Island (Peter the Great Bay, Sea of Japan); p. 87 - 146." type="book chapter" year="2009">Ivanova et al. 2009</bibRefCitation>
, intertidal [t]), Sea of Okhotsk (
<bibRefCitation id="3B714B63FFE3FFCE57F7FDCCFC38FDC6" author="Gurjanova EF" box="[737,926,534,558]" pageId="18" pageNumber="2811" refId="ref6474" refString="Gurjanova EF. 1951. Amphipods of the Seas of the USSR and Adjacent Waters (Amphipoda- Gammaridea) (Identification of Fauna USSR Volume 41). Moscow / Leningrad: Akademia Nauk SSSR. 1031 pp. (in Russian)." type="book" year="1951">Gurjanova 1951</bibRefCitation>
[t];
<bibRefCitation id="3B714B63FFE3FFCE56C1FDCCFB35FDC6" author="Gurjanova EF" box="[983,1171,534,558]" pageId="18" pageNumber="2811" pagination="220 - 227" refId="ref6518" refString="Gurjanova EF. 1959. A list of the fauna of the sea waters of the South Sakhalin and South Kuril Islands. Order Amphipoda. Studies of the Far Eastern seas of the USSR 6: 220 - 227 (in Russian)." type="journal article" year="1959">Gurjanova 1959</bibRefCitation>
[t];
<bibRefCitation id="3B714B63FFE3FFCE5417FDECFE6BFDA6" author="Kudrjashov VA" box="[257,461,566,590]" pageId="18" pageNumber="2811" pagination="86 - 117" refId="ref6869" refString="Kudrjashov VA. 1968. Composition and distributional trends in amphipod fauna (Amphipoda- Crustacea) in the north-eastern part of the Okhotsk Sea. Uc Zap Dal'nevostoc Gos Univ Vladivostok 15: 86 - 117 (in Russian)." type="journal article" year="1968">Kudrjashov 1968</bibRefCitation>
, 54–
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[t];
<bibRefCitation id="3B714B63FFE3FFCE5782FDECFCC6FDA6" author="Kudrjashov VA" box="[660,864,566,590]" pageId="18" pageNumber="2811" pagination="79 - 116" refId="ref6910" refString="Kudrjashov VA. 1972. On the fauna and ecology of amphipods (Amphipoda-Gammaridea) in the intertidal zone of Kuril Islands (littoral Islands of Iturup, Urup, Simuschir, Paramuschir). Uc Zap Dal'nevostoc Gos Univ Vladivostok 60: 79 - 116 (in Russian)." type="journal article" year="1972">Kudrjashov 1972</bibRefCitation>
,
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[t];
<bibRefCitation id="3B714B63FFE3FFCE510FFDECFE67FD86" author="Budnikova LL &amp; Bezrukov RG" pageId="18" pageNumber="2811" pagination="197 - 220" refId="ref6138" refString="Budnikova LL, Bezrukov RG. 2003. Composition and distribution of amphipods (Amphipoda: Gammaridea, Caprellidea) on the shelf and upper slope of eastern Sakhalin Island. Izv TINRO. 135: 197 - 220 (in Russian with English abstract)." type="journal article" year="2003">Budnikova and Bezrukov 2003</bibRefCitation>
, 42–
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[t];
<bibRefCitation id="3B714B63FFE3FFCE579DFD8CFC98FD86" author="Arhipova EA" box="[651,830,598,622]" pageId="18" pageNumber="2811" pagination="20 - 31" refId="ref5886" refString="Arhipova EA. 2009. Zoobenthos of the west Kamchatkan shelf. Research of Hydrobiological Resources of Kamchatka and the North-western Pacific 14: 20 - 31 (in Russian with English abstract)." type="journal article" year="2009">Arhipova 2009</bibRefCitation>
, 15–
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[t]), Bering Sea (
<bibRefCitation id="3B714B63FFE3FFCE55CDFDACFE37FD66" author="Gurjanova EF" box="[219,401,630,654]" pageId="18" pageNumber="2811" refId="ref6474" refString="Gurjanova EF. 1951. Amphipods of the Seas of the USSR and Adjacent Waters (Amphipoda- Gammaridea) (Identification of Fauna USSR Volume 41). Moscow / Leningrad: Akademia Nauk SSSR. 1031 pp. (in Russian)." type="book" year="1951">Gurjanova 1951</bibRefCitation>
[m, t];
<bibRefCitation id="3B714B63FFE3FFCE54C9FDACFD3FFD66" author="Shoemaker CR" box="[479,665,630,654]" pageId="18" pageNumber="2811" pagination="1 - 78" refId="ref7333" refString="Shoemaker CR. 1955. Amphipoda collected at the Arctic Laboratory, Office of Naval Research, Point Barrow, Alaska, by G. E. MacGinitie. Smith Misc Coll. 128 (1): 1 - 78." type="journal article" year="1955">Shoemaker 1955</bibRefCitation>
[t]), Gulf of Alaska (
<bibRefCitation id="3B714B63FFE3FFCE5694FDACFB29FD66" author="Hoberg M &amp; Feder H" box="[898,1167,630,654]" pageId="18" pageNumber="2811" pagination="25 - 45" refId="ref6622" refString="Hoberg M, Feder H. 2002. The macrobenthos of sites within Prince William Sound, Alaska, prior to the Exxon Valdez oil spill. Intarnat Rev Hydrobiol. 87: 25 - 45." type="journal article" year="2002">Hoberg and Feder 2002</bibRefCitation>
, 30–
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[t]).
</paragraph>
<paragraph id="5F5F3692FFE3FFCE55E8FD6FFC74FBC4" blockId="18.[211,1172,470,1068]" pageId="18" pageNumber="2811">
This species is widely distributed in the northern seas of the world with a wide depth range.
<bibRefCitation id="3B714B63FFE3FFCE547DFD0FFDA5FD05" author="Briggs JC" box="[363,515,725,749]" pageId="18" pageNumber="2811" refId="ref6074" refString="Briggs JC. 1995. Global Biogeography. Amsterdam: Elsevier. 454 p." type="book" year="1995">Briggs (1995)</bibRefCitation>
stated that the fauna of the Arctic Region is “essentially homogeneous biota” and this circumpolar distribution supports his opinion. The present occurrence in Sagami Bay is the southernmost (
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34
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59’ N
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) and deepest (
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) record of the species. Because the cold Intermediate Oyashio Water enters into Sagami Bay through the narrow deep Oshima east channel (
<bibRefCitation id="3B714B63FFE3FFCE5608FC8FFC78FC85" author="Yang SK &amp; Nagata Y &amp; Taira K &amp; Kawabe M" box="[798,990,853,877]" pageId="18" pageNumber="2811" pagination="89 - 114" refId="ref7812" refString="Yang SK, Nagata Y, Taira K, Kawabe M. 1993 a. Southward intrusion of the Intermediate Oyashio Water along the east coast of the Boso Peninsula. I. Coastal salinity-minimumlayer water off the Boso Peninsula. J Oceanogr. 49: 89 - 114." type="journal article" year="1993">Yang et al.1993a</bibRefCitation>
, b), some of the subarctic species were recorded in relatively deep water of the bay.
<bibRefCitation id="3B714B63FFE3FFCE56F2FCAFFB32FC65" author="Okutani T" box="[996,1172,885,909]" pageId="18" pageNumber="2811" pagination="95 - 102" refId="ref7144" refString="Okutani T. 1972. The probable subarctic elements found in the bathyal megalobenthos in Sagami Bay. J Oceanogr Soc Japan. 28: 95 - 102." type="journal article" year="1972">Okutani (1972)</bibRefCitation>
reported several probable subarctic megabenthos which might be transported by the Oyashio Undercurrent. The subarctic copepod
<taxonomicName id="98E04D11FFE3FFCE57FCFC6FFC76FC24" baseAuthorityName="Kroyer" baseAuthorityYear="1848" box="[746,976,949,973]" class="Hexanauplia" family="Calanidae" genus="Neocalanus" kingdom="Animalia" order="Calanoida" pageId="18" pageNumber="2811" phylum="Arthropoda" rank="species" species="cristatus">
<emphasis id="6D94EA80FFE3FFCE57FCFC6FFC76FC24" box="[746,976,949,973]" italics="true" pageId="18" pageNumber="2811">Neocalanus cristatus</emphasis>
</taxonomicName>
and chaetognath
<taxonomicName id="98E04D11FFE3FFCE55C5FC0FFEDDFC05" authorityName="Verrill" authorityYear="1873" box="[211,379,981,1005]" class="Sagittoidea" family="Sagittidae" genus="Sagitta" kingdom="Animalia" order="Aphragmophora" pageId="18" pageNumber="2811" phylum="Chaetognatha" rank="species" species="elegans">
<emphasis id="6D94EA80FFE3FFCE55C5FC0FFEDDFC05" box="[211,379,981,1005]" italics="true" pageId="18" pageNumber="2811">Sagitta elegans</emphasis>
</taxonomicName>
were also recorded there (Oh
<emphasis id="6D94EA80FFE3FFCE57DAFC0FFD5DFC05" box="[716,763,981,1005]" italics="true" pageId="18" pageNumber="2811">et al</emphasis>
,. 1991;
<bibRefCitation id="3B714B63FFE3FFCE5643FC0EFC58FC04" author="Terazaki M" box="[853,1022,980,1004]" pageId="18" pageNumber="2811" pagination="1 - 17" refId="ref7699" refString="Terazaki M. 1998. Life history, distribution, seasonal variability and feeding of the pelagic chaetognath Sagitta elegans in the Subarctic Pacific: A review. Plankton Biol Ecol. 45: 1 - 17." type="journal article" year="1998">Terazaki, 1998</bibRefCitation>
). Our finding of
<taxonomicName id="98E04D11FFE3FFCE55E6FC2FFE27FBE4" baseAuthorityName="Sars" baseAuthorityYear="1879" box="[240,385,1012,1036]" class="Malacostraca" family="Ischyroceridae" genus="Ericthonius" kingdom="Animalia" order="Amphipoda" pageId="18" pageNumber="2811" phylum="Arthropoda" rank="species" species="megalopus">
<emphasis id="6D94EA80FFE3FFCE55E6FC2FFE27FBE4" box="[240,385,1012,1036]" italics="true" pageId="18" pageNumber="2811">E. megalopus</emphasis>
</taxonomicName>
at the deep-sea bottom in Sagami Bay is consistent with the occurrence of subarctic benthos and plankton in the bay in the previous studies.
</paragraph>
</subSubSection>
</treatment>
</document>
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