160 lines
19 KiB
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160 lines
19 KiB
XML
<document id="54EDD0F7F49C4233AE6F5844BD0A2598" ID-CLB-Dataset="7102" ID-DOI="10.11646/zootaxa.4939.1.1" ID-GBIF-Dataset="ee8e66ff-2f2c-47e2-978b-be52996d5b0f" ID-ISSN="1175-5326" ID-Zenodo-Dep="4580622" ID-ZooBank="F33F42D0-A139-4CE3-97D7-1314C12CF86B" IM.bibliography_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1614842897337" checkinUser="plazi" docAuthor="Conlan, Kathleen E., Desiderato, Andrea & Beermann, Jan" docDate="2021" docId="03B487DAFF22D980C9C81F6DFF02FE9C" docLanguage="en" docName="zootaxa.4939.1.1.pdf" docOrigin="Zootaxa 4939 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Jassa ingens Pfeffer 1888" docType="treatment" docVersion="9" lastPageNumber="153" masterDocId="FF8DFFA2FFB5D918C95F1B11FFF4FFF9" masterDocTitle="Jassa (Crustacea: Amphipoda): a new morphological and molecular assessment of the genus" masterLastPageNumber="191" masterPageNumber="1" pageNumber="152" updateTime="1698932378003" updateUser="ExternalLinkService">
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<mods:title id="DAC8A32202E51AFC07589C0735F002AA">Jassa (Crustacea: Amphipoda): a new morphological and molecular assessment of the genus</mods:title>
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<mods:namePart id="D29FF0C2EEA0A0BF41C4ECA939DB3EAD">Conlan, Kathleen E.</mods:namePart>
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<mods:namePart id="4D687553C286FF0FDCB8C5EB2CB1174A">Desiderato, Andrea</mods:namePart>
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<mods:namePart id="3F88E2F15DAC62EADC08178A8875DF5F">Beermann, Jan</mods:namePart>
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<mods:nameIdentifier id="7DBC1DCE457149061005A457F5FFA47D" type="email">kconlan@nature.ca</mods:nameIdentifier>
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<mods:title id="2B52B75B5E625ABFA4F5606A6803F8E8">Zootaxa</mods:title>
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<mods:date id="61B71492002B0B2EBA7FDA3FC294AA0B">2021</mods:date>
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<mods:number id="0056D9E02FE33DAB9EDB82D735341543">2021-03-04</mods:number>
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<mods:number id="36D8409038D12B48BEC6899DF1214FA5">4939</mods:number>
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<treatment id="03B487DAFF22D980C9C81F6DFF02FE9C" ID-DOI="http://doi.org/10.5281/zenodo.4580606" ID-GBIF-Taxon="181871918" ID-Zenodo-Dep="4580606" LSID="urn:lsid:plazi:treatment:03B487DAFF22D980C9C81F6DFF02FE9C" httpUri="http://treatment.plazi.org/id/03B487DAFF22D980C9C81F6DFF02FE9C" lastPageId="152" lastPageNumber="153" pageId="151" pageNumber="152">
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<subSubSection id="C3076547FF22D98FC9C81F6DFE50FB43" pageId="151" pageNumber="152" type="nomenclature">
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<paragraph id="8BA236CCFF22D98FC9C81F6DFE22FB6F" blockId="151.[151,470,1148,1210]" box="[151,470,1148,1174]" pageId="151" pageNumber="152">
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<heading id="D0EA81A0FF22D98FC9C81F6DFE22FB6F" bold="true" box="[151,470,1148,1174]" fontSize="11" level="2" pageId="151" pageNumber="152" reason="4">
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<taxonomicName id="4C1D4D4FFF22D98FC9C81F6DFE22FB6F" ID-CoL="3QMZM" authority="Pfeffer, 1888" authorityName="Pfeffer" authorityYear="1888" box="[151,470,1148,1174]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="ingens">
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<emphasis id="B969EADEFF22D98FC9C81F6DFE22FB6F" bold="true" box="[151,470,1148,1174]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9C81F6DFEC5FB6F" bold="true" box="[151,305,1148,1174]" italics="true" pageId="151" pageNumber="152">Jassaingens</emphasis>
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<bibRefCitation id="EF8C4B3DFF22D98FC8661F6DFE22FB6F" author="Pfeffer, G." box="[313,470,1148,1174]" pageId="151" pageNumber="152" pagination="75 - 142" refId="ref102710" refString="Pfeffer, G. (1888) Die krebse von Sud-Georgien nach der ausbeute der Deutschen station 1882 - 83. 2. Die Amphipoden. Hamburg Wissenschafftlichen Anstalten Jahrbuch, 5, 75 - 142. https: // doi. org / 10.5962 / bhl. title. 10084" type="journal article" year="1888">Pfeffer, 1888</bibRefCitation>
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9C81FB1FE50FB43" blockId="151.[151,470,1148,1210]" box="[151,420,1184,1210]" pageId="151" pageNumber="152">
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(
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<tableCitation id="C69F0377FF22D98FC9C01FB1FEF7FB43" box="[159,259,1184,1210]" captionStart="TABLE 13" captionStartId="136.[151,239,225,249]" captionTargetPageId="136" captionText="TABLE 13. Key character states of locally distributed Southern Hemisphere species. Trans-hemispheric species (Table 10) may occur there as well. X indicates the presence of the first character state described while — indicates the alternative character state given in italics. S and L indicate length.? indicates that the state is unknown. Character states apply to both sexes and juveniles unless indicated otherwise." httpUri="http://table.plazi.org/id/DF626644FF3DD990C9C81BF0FD37FE9C" pageId="151" pageNumber="152" tableUuid="DF626644FF3DD990C9C81BF0FD37FE9C">Table 13</tableCitation>
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,
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<figureCitation id="13262A49FF22D98FC8501FB1FE6FFB43" box="[271,411,1184,1210]" captionStart-0="FIGURE 99" captionStart-1="FIGURE 100" captionStart-2="FIGURE 101" captionStartId-0="152.[151,250,1280,1304]" captionStartId-1="153.[151,250,1733,1757]" captionStartId-2="154.[151,250,1875,1899]" captionTargetBox-0="[154,1433,390,1253]" captionTargetBox-1="[216,1370,183,1708]" captionTargetBox-2="[151,1436,184,1848]" captionTargetId-0="figure-118@152.[151,1436,381,1257]" captionTargetId-1="figure-18@153.[216,1372,181,1709]" captionTargetId-2="figure-22@154.[151,1436,181,1851]" captionTargetPageId-0="152" captionTargetPageId-1="153" captionTargetPageId-2="154" captionText-0="FIGURE 99. Jassa ingens (Pfeffer, 1888). Whole body: lectotype, adult male, major form, 22.1 mm, ZMH K-8017. Moltke- Hafen, Royal Bucht, South Georgia (54°30ʹ58ʺS, 36°0ʹ45ʺW), 16 Januarly 1884, Deutsche Polarstation 1882/83, K. Von den Steinen, coll. (ZMH). Adult male 1, major form, 20.3 mm and juvenile male, 10.6 mm, NHM 1969:705:9. Billie Rocks, Signy Island, South Orkney Islands (60°42ʹS, 45°36ʹW), 5 March 1965, M. H. Thurston, coll., station 10 (97). SCUBA collection on vertical creviced rock with Lithothamnia, Desmarestia anceps, Ascoseira mirabilis, Iophon/Phyllophora, Porifera, Polyzoa, 1.9–2.2 m depth, IZ 1989-013 (CMN). Subadult male, 19.9 mm, NHM 1969:713:4. Billie Rocks, Signy Island, South Orkney Islands (60°42ʹS, 45°36ʹW), 27 February 1965, M. H. Thurston, coll., station 20 (512), SCUBA collection on rock inclined at 45–50°with overlying boulders and sand in crevices. Lithothamnia, Desmarestia anceps, Rhodophyceae, Polyzoa, 7.4–7.7 m depth (NHM). All views lateral. Setae omitted from the gnathopod 2 profiles except for those around the thumb and spines of the males in order to landmark position changes with growth. Scale 1 mm. Illustration after Conlan (1990)." captionText-1="FIGURE 100. Jassa ingens (Pfeffer, 1888). Adult male, major form, 20.3 mm, NHM 1969:705:9. Billie Rocks, Signy Island, South Orkney Islands (60°42ʹS, 45°36ʹW), 5 March 1965, M. H. Thurston, coll., station 10 (97). SCUBA collection on vertical creviced rock with Lithothamnia, Desmarestia anceps, Ascoseira mirabilis, Iophon/Phyllophora, Porifera, Polyzoa, 1.9–2.2 m depth, IZ 1989-013 (CMN). Adult female, 19.2 mm, NHM 723:7, Factory Cove–Berntsen Point, Signy Island, South Orkney Islands (60°42ʹS, 45°36ʹW), 15 April 1964, M. H. Thurston, coll., station 46 (1929). Agassiz trawl close inshore over boulder slopes with Desmarestia anceps, Phyllogigas grandifolius and Rhodophyceae dominant, 6–14 m depth, IZ 1989-013 (CMN). Lateral view: male uropod 3; medial views: female gnathopod 2 and uropod 3. Scale 0.1 mm." captionText-2="FIGURE 101. Jassa ingens (Pfeffer, 1888). Adult male, major form, 20.3 mm, NHM 1969:705:9. Billie Rocks, Signy Island, South Orkney Islands (60°42ʹS, 45°36ʹW), 5 March 1965, M. H. Thurston, coll., station 10 (97). SCUBA collection on vertical creviced rock with Lithothamnia, Desmarestia anceps, Ascoseira mirabilis, Iophon/Phyllophora, Porifera, Polyzoa, 1.9–2.2 m depth, IZ 1989-013 (CMN). Mouthparts. Frontal view: upper lip; other views medial. Scale 0.1 mm." figureDoi-0="http://doi.org/10.5281/zenodo.4580870" figureDoi-1="http://doi.org/10.5281/zenodo.4580872" figureDoi-2="http://doi.org/10.5281/zenodo.4580874" httpUri-0="https://zenodo.org/record/4580870/files/figure.png" httpUri-1="https://zenodo.org/record/4580872/files/figure.png" httpUri-2="https://zenodo.org/record/4580874/files/figure.png" pageId="151" pageNumber="152">Figs 99–101</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="C3076547FF22D98FC9C81FF4FE24FB04" box="[151,464,1252,1277]" pageId="151" pageNumber="152" type="description">
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<paragraph id="8BA236CCFF22D98FC9C81FF4FE24FB04" blockId="151.[151,464,1252,1277]" box="[151,464,1252,1277]" pageId="151" pageNumber="152">
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Synonyms: see
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<bibRefCitation id="EF8C4B3DFF22D98FC8691FF5FE39FB04" author="Conlan, K. E." box="[310,461,1252,1277]" pageId="151" pageNumber="152" pagination="2031 - 2075" refId="ref90850" refString="Conlan, K. E. (1990) Revision of the crustacean amphipod genus Jassa Leach (Corophioidea: Ischyroceridae). Canadian Journal of Zoology, 68, 2031 - 2075. https: // doi. org / 10.1139 / z 90 - 288" type="journal article" year="1990">Conlan (1990)</bibRefCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3076547FF22D98FC9C81E3BFD8FF808" pageId="151" pageNumber="152" type="diagnosis">
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<paragraph id="8BA236CCFF22D98FC9C81E3BFEE6FABD" blockId="151.[151,1437,1322,2033]" box="[151,274,1322,1348]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9C81E3BFEE6FABD" bold="true" box="[151,274,1322,1348]" pageId="151" pageNumber="152">Diagnosis.</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981E5EFEBAFA90" blockId="151.[151,1437,1322,2033]" box="[199,334,1359,1385]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981E5EFEBAFA90" bold="true" box="[199,334,1359,1385]" pageId="151" pageNumber="152">Both sexes:</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981E62FC42FA74" blockId="151.[151,1437,1322,2033]" box="[199,950,1395,1421]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981E62FE72FA74" box="[199,390,1395,1421]" italics="true" pageId="151" pageNumber="152">Mandibular palp</emphasis>
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: article 2, dorsal margin without a fringe of setae.
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981E86FC2BFA48" blockId="151.[151,1437,1322,2033]" box="[199,991,1431,1457]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981E86FEC7FA48" box="[199,307,1431,1457]" italics="true" pageId="151" pageNumber="152">Maxilla 1</emphasis>
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: with a small cluster of setae at the base of the palp article 1.
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981EAAFC7EF9E7" blockId="151.[151,1437,1322,2033]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981EAAFEAFFA2C" box="[199,347,1467,1493]" italics="true" pageId="151" pageNumber="152">Gnathopod 1</emphasis>
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: basis, anterolateral margin with a few to a full row of short setae along its length which may be slender or spine-like; carpus with a single or small cluster of setae at the anterodistal junction of the propodus (setae about 1/3 of anterior margin length and slightly lateral and medial).
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981D36FAEFF99F" blockId="151.[151,1437,1322,2033]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981D36FEA8F9B8" box="[199,348,1575,1601]" italics="true" pageId="151" pageNumber="152">Gnathopod 2</emphasis>
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: basis with a row of small setae along the anterolateral margin (setal lengths <10% of the basis width); carpus and propodus, setae on the anterior margin short and simple (setal length <basis width).
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981D7EFD26F970" blockId="151.[151,1437,1322,2033]" box="[199,722,1647,1673]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981D7EFE9BF970" box="[199,367,1647,1673]" italics="true" pageId="151" pageNumber="152">Pereopods 5–7</emphasis>
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: propodus expanded anteriorly.
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981D82FB48F954" blockId="151.[151,1437,1322,2033]" box="[199,1212,1683,1709]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981D82FEC6F954" box="[199,306,1683,1709]" italics="true" pageId="151" pageNumber="152">Uropod 1</emphasis>
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: ventral peduncular spinous process underlying about 40% of the longest ramus.
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981DA6FB64F92B" blockId="151.[151,1437,1322,2033]" box="[199,1168,1719,1746]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981DA6FEC6F928" box="[199,306,1719,1745]" italics="true" pageId="151" pageNumber="152">Uropod 3</emphasis>
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: inner ramus without spines mid-dorsally (with only the single apical spine).
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981DCAFB8CF90C" blockId="151.[151,1437,1322,2033]" box="[199,1144,1755,1781]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981DCAFEFBF90C" box="[199,271,1755,1781]" italics="true" pageId="151" pageNumber="152">Telson</emphasis>
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: tip without apical setae (only the usual short setae at each dorsolateral cusp).
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981DEEFE72F8E0" blockId="151.[151,1437,1322,2033]" box="[199,390,1791,1817]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981DEEFE72F8E0" bold="true" box="[199,390,1791,1817]" pageId="151" pageNumber="152">Thumbed male:</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981C32FB2BF8C4" blockId="151.[151,1437,1322,2033]" box="[199,1247,1826,1853]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981C32FECEF8C4" box="[199,314,1827,1853]" italics="true" pageId="151" pageNumber="152">Antenna 2</emphasis>
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: large individuals without plumose setae on the flagellum and peduncular article 5.
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981C56FF14F87C" blockId="151.[151,1437,1322,2033]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981C56FEAFF898" box="[199,347,1863,1889]" italics="true" pageId="151" pageNumber="152">Gnathopod 2</emphasis>
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: propodus, palmar defining spines produced on a ledge, present in both small and large thumbed males.
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981C9FFE9FF851" blockId="151.[151,1437,1322,2033]" box="[199,363,1934,1960]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981C9FFE9FF851" bold="true" box="[199,363,1934,1960]" pageId="151" pageNumber="152">Adult female:</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFF22D98FC9981CA2FBEAF834" blockId="151.[151,1437,1322,2033]" box="[199,1054,1970,1997]" pageId="151" pageNumber="152">
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<emphasis id="B969EADEFF22D98FC9981CA2FECEF834" box="[199,314,1971,1997]" italics="true" pageId="151" pageNumber="152">Antenna 2</emphasis>
|
||
: without plumose setae on the flagellum and peduncular article 5.
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFF22D98FC9981CC6FD8FF808" blockId="151.[151,1437,1322,2033]" box="[199,635,2007,2033]" pageId="151" pageNumber="152">
|
||
<emphasis id="B969EADEFF22D98FC9981CC6FEAEF808" box="[199,346,2007,2033]" italics="true" pageId="151" pageNumber="152">Gnathopod 2</emphasis>
|
||
: propodus, palmsinuous.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3076547FF2DD980C9981B86FF02FE9C" pageId="152" pageNumber="153" type="discussion">
|
||
<paragraph id="8BA236CCFF2DD980C9981B86FF02FE9C" blockId="152.[151,1437,151,357]" pageId="152" pageNumber="153">
|
||
<emphasis id="B969EADEFF2DD980C9981B86FECFFF48" bold="true" box="[199,315,151,177]" pageId="152" pageNumber="153">Remarks.</emphasis>
|
||
All of the thumbed males available for study had relatively short thumbs with the palmar defining spines present and produced on a ledge, suggesting that these spines are not lost even in the largest animals. The antenna 2 setae are long in small juveniles but shorten drastically in the adult males. The expanded propodus of pereopods 5–7 is distinctive, even in the young. This is the largest species known for the genus, with body length at maturity in the specimens available
|
||
<quantity id="4CE59B29FF2DD980CB6F1A36FD20FEB8" box="[560,724,295,321]" metricMagnitude="-2" metricUnit="m" metricValue="2.185" metricValueMax="2.41" metricValueMin="1.96" pageId="152" pageNumber="153" unit="mm" value="21.85" valueMax="24.1" valueMin="19.6">19.6–24.1 mm</quantity>
|
||
for the adult (thumbed) males and
|
||
<quantity id="4CE59B29FF2DD980CD3A1A37FAFEFEB8" box="[1125,1290,294,321]" metricMagnitude="-2" metricUnit="m" metricValue="1.805" metricValueMax="2.08" metricValueMin="1.53" pageId="152" pageNumber="153" unit="mm" value="18.05" valueMax="20.8" valueMin="15.3">15.3–20.8 mm</quantity>
|
||
for the adult females.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |