431 lines
77 KiB
XML
431 lines
77 KiB
XML
<document id="CD3401A633B51AF1A57DF37DE596CE9E" 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="03B487DAFFE3D944C9C81F01FC10FEBB" 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 herdmani Walker 1893" docType="treatment" docVersion="11" lastPageNumber="92" masterDocId="FF8DFFA2FFB5D918C95F1B11FFF4FFF9" masterDocTitle="Jassa (Crustacea: Amphipoda): a new morphological and molecular assessment of the genus" masterLastPageNumber="191" masterPageNumber="1" pageNumber="87" updateTime="1698932378003" updateUser="ExternalLinkService">
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<mods:title id="81427A1D74FFFD0BA272F4F5A0A65CC4">Jassa (Crustacea: Amphipoda): a new morphological and molecular assessment of the genus</mods:title>
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<mods:namePart id="E03A0C28145F6EFFB007A87E34EB36F5">Conlan, Kathleen E.</mods:namePart>
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<mods:namePart id="F94ECD5AEDE98BE2D8C3EB3B022146BD">Desiderato, Andrea</mods:namePart>
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<mods:namePart id="62E9B18C55ADC3D413156813FFCF1488">Beermann, Jan</mods:namePart>
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<mods:title id="12A68FE8AB5F1F47C0B9271AA2DAFD48">Zootaxa</mods:title>
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<mods:date id="57EB8C3C5B9B67BA536C3117DDE7A411">2021</mods:date>
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<mods:number id="255C9E221076A2DE604615F980D5B4EA">4939</mods:number>
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<treatment id="03B487DAFFE3D944C9C81F01FC10FEBB" ID-DOI="http://doi.org/10.5281/zenodo.4580570" ID-GBIF-Taxon="181871892" ID-Zenodo-Dep="4580570" LSID="urn:lsid:plazi:treatment:03B487DAFFE3D944C9C81F01FC10FEBB" httpUri="http://treatment.plazi.org/id/03B487DAFFE3D944C9C81F01FC10FEBB" lastPageId="92" lastPageNumber="92" pageId="86" pageNumber="87">
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<subSubSection id="C3076547FFE3D94EC9C81F01FE64FBB6" pageId="86" pageNumber="87" type="nomenclature">
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<paragraph id="8BA236CCFFE3D94EC9C81F01FDF6FBD3" blockId="86.[151,514,1039,1103]" box="[151,514,1039,1066]" pageId="86" pageNumber="87">
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<heading id="D0EA81A0FFE3D94EC9C81F01FDF6FBD3" bold="true" box="[151,514,1039,1066]" fontSize="11" level="2" pageId="86" pageNumber="87" reason="4">
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<taxonomicName id="4C1D4D4FFFE3D94EC9C81F01FDF6FBD3" ID-CoL="3QMZL" authority="Walker, 1893" authorityName="Walker" authorityYear="1893" box="[151,514,1039,1066]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="86" pageNumber="87" phylum="Arthropoda" rank="species" species="herdmani">
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<emphasis id="B969EADEFFE3D94EC9C81F01FDF6FBD3" bold="true" box="[151,514,1039,1066]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9C81F01FEA2FBD3" bold="true" box="[151,342,1039,1066]" italics="true" pageId="86" pageNumber="87">Jassaherdmani</emphasis>
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<bibRefCitation id="EF8C4B3DFFE3D94EC8011F01FDF6FBD3" author="Walker, A. O." box="[350,514,1040,1066]" pageId="86" pageNumber="87" pagination="79" refId="ref107143" refString="Walker, A. O. (1893) Podocerus herdmani, n. sp., In: Herdman, W. A., Sixth annual report of the Liverpool Marine Biology Committee and their biological station at Port Erin. P roceedings and Transactions of the Liverpool Biological Society. The Society, Liverpool, 1893, p. 79." type="journal article" year="1893">Walker, 1893</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="8BA236CCFFE3D94EC9C81F25FE64FBB6" blockId="86.[151,514,1039,1103]" box="[151,400,1076,1103]" pageId="86" pageNumber="87">
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(
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<tableCitation id="C69F0377FFE3D94EC9C11F25FEF4FBB7" box="[158,256,1076,1102]" captionStart="TABLE 11" captionStartId="73.[151,239,225,249]" captionTargetPageId="73" captionText="TABLE 11. Key character states of locally distributed North Atlantic 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/DF626644FFFCD951C9C81BF0FD79FE9C" pageId="86" pageNumber="87" tableUuid="DF626644FFFCD951C9C81BF0FD79FE9C">Table 11</tableCitation>
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,
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<figureCitation id="13262A49FFE3D94EC8531F25FE7CFBB6" box="[268,392,1076,1103]" captionStart-0="FIGURE 48" captionStart-1="FIGURE 49" captionStart-2="FIGURE 50" captionStart-3="FIGURE 51" captionStart-4="FIGURE 52" captionStart-5="FIGURE 53" captionStartId-0="87.[151,250,1864,1888]" captionStartId-1="88.[151,250,1855,1879]" captionStartId-2="89.[151,250,1778,1802]" captionStartId-3="90.[151,250,1439,1463]" captionStartId-4="91.[151,250,1679,1703]" captionStartId-5="92.[151,250,1938,1962]" captionTargetBox-0="[157,1433,194,1834]" captionTargetBox-1="[185,1403,189,1824]" captionTargetBox-2="[151,1432,181,1754]" captionTargetBox-3="[177,1411,187,1410]" captionTargetBox-4="[187,1399,785,1648]" captionTargetBox-5="[189,1398,345,1912]" captionTargetId-0="figure-18@87.[151,1436,181,1841]" captionTargetId-1="figure-22@88.[176,1411,181,1832]" captionTargetId-2="figure-18@89.[151,1436,181,1754]" captionTargetId-3="figure-22@90.[177,1411,181,1415]" captionTargetId-4="figure-314@91.[177,1411,777,1656]" captionTargetId-5="figure-112@92.[189,1398,345,1914]" captionTargetPageId-0="87" captionTargetPageId-1="88" captionTargetPageId-2="89" captionTargetPageId-3="90" captionTargetPageId-4="91" captionTargetPageId-5="92" captionText-0="FIGURE 48. Jassa herdmani (Walker, 1893). Neotype, adult male, minor form, 6.0 mm, NHM 1925.9.8: 1686. Port Erin breakwater, Isle of Man, England, November 1892, A. O. Walker, coll.Adult male 1, major form, 7.9 mm, 1 m below water surface on steel frame used to hold settling plates, Langstone Harbour, Plymouth, England, 26 March 1986, R. J. Trott, coll., IZ1986-041 (CMN). Lateral view: whole body; dorsal view: telson; other views medial. Scale 0.1 mm. Illustration after Conlan (1990)." captionText-1="FIGURE 49. Jassa herdmani (Walker, 1893). Variation in thumb length relative to body length in males from Plymouth Sound, England, 14 April 1937, D. M. Reid, coll., from a buoy (SNM).Arrows refer to the associated gnathopod illustrations. The subadult male had a thumb visible inside the cuticle, indicating that it would molt next into a thumbed adult. Setae omitted except for those around the thumb and spines in order to landmark position changes with growth. All views lateral. Scale 0.1 mm. Linear regression assumptions failed for all plots. Illustration after Conlan (1990)." captionText-2="FIGURE 50. Jassa herdmani (Walker, 1893). Adaptation of illustrations in Sexton and Reid (1951), with their figure numbers indicated. Antennae 1 (1A) and 2 (1B), gnathopod 1 (1C) pereopods 3–7 (1E, F, G, H, J): Plates 6-9, Specimen 1, Narrow-Form male J.CCLXXIII, from Trinity Buoy, Plymouth Docks, 14 May 1928, E. W. Sexton and D. W. Reid, colls." captionText-3="FIGURE 51. Jassa herdmani (Walker, 1893). Adaptation of illustrations in Sexton and Reid (1951), with their figure numbers indicated. Adult female gnathopod 2: Plate 10, Specimen 2, Narrow-Form female J.CXLIV (2E), dredging from a buoy at the entrance to Plymouth Docks, 23 August 1928, E. W. Sexton and D. W. Reid, colls. Juvenile male gnathopod 2: Plate 12, Specimen 7, Narrow-Form male, cut-across stage, J.5 (1): F1 of female J.CXLIV (7C). Transformation of non-thumbed (13D) to thumbed (13E) gnathopod 2: Plate 19, Specimen 13 (2), Male K. B. 11, from a scrape of a buoy moored outside the [Plymouth] Breakwater, 3 May 1930, E. W. Sexton and D. W. Reid, colls. Adult male gnathopod 2, major form: Plate 7, Specimen 1, Narrow-Form male J.CCLXXIII, from Trinity Buoy, Plymouth Docks, 14 May 1928, E. W. Sexton and D. W. Reid, colls." captionText-4="FIGURE 52. Jassa herdmani (Walker, 1893). Adult female, 7.2 mm, 1 m below water surface on steel frame used to hold settling plates, Langstone Harbour, Plymouth, England, 26 March 1986, R. J. Trott, coll., IZ1986-041 (CMN). Lateral view: whole body; dorsal view: telson; other views medial. Scale 0.1 mm." captionText-5="FIGURE 53. Jassa herdmani (Walker, 1893).Adult male 1, major form, 7.9 mm, 1 m below water surface on steel frame used to hold settling plates, Langstone Harbour, Plymouth, England, 26 March 1986, R. J. Trott, coll., IZ1986-041 (CMN). Mouthparts. Lateral views: maxilla 1 and maxilla 2; frontal view: upper lip; other views medial. Scale 0.1 mm." figureDoi-0="http://doi.org/10.5281/zenodo.4580755" figureDoi-1="http://doi.org/10.5281/zenodo.4580757" figureDoi-2="http://doi.org/10.5281/zenodo.4580759" figureDoi-3="http://doi.org/10.5281/zenodo.4580761" figureDoi-4="http://doi.org/10.5281/zenodo.4580763" figureDoi-5="http://doi.org/10.5281/zenodo.4580765" httpUri-0="https://zenodo.org/record/4580755/files/figure.png" httpUri-1="https://zenodo.org/record/4580757/files/figure.png" httpUri-2="https://zenodo.org/record/4580759/files/figure.png" httpUri-3="https://zenodo.org/record/4580761/files/figure.png" httpUri-4="https://zenodo.org/record/4580763/files/figure.png" httpUri-5="https://zenodo.org/record/4580765/files/figure.png" pageId="86" pageNumber="87">Figs 48–53</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="C3076547FFE3D94EC9C81F68FE24FB68" box="[151,464,1144,1169]" pageId="86" pageNumber="87" type="description">
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<paragraph id="8BA236CCFFE3D94EC9C81F68FE24FB68" blockId="86.[151,464,1144,1169]" box="[151,464,1144,1169]" pageId="86" pageNumber="87">
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Synonyms: see
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<bibRefCitation id="EF8C4B3DFFE3D94EC8691F69FE39FB68" author="Conlan, K. E." box="[310,461,1144,1169]" pageId="86" pageNumber="87" 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="C3076547FFE3D94EC9C81FAFFA65F850" pageId="86" pageNumber="87" type="diagnosis">
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<paragraph id="8BA236CCFFE3D94EC9C81FAFFEE6FB21" blockId="86.[151,1437,1214,2033]" box="[151,274,1214,1240]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9C81FAFFEE6FB21" bold="true" box="[151,274,1214,1240]" pageId="86" pageNumber="87">Diagnosis.</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFFE3D94EC9981FF2FEBAFB04" blockId="86.[151,1437,1214,2033]" box="[199,334,1251,1277]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9981FF2FEBAFB04" bold="true" box="[199,334,1251,1277]" pageId="86" pageNumber="87">Both sexes:</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFFE3D94EC9981E16FC67FAD8" blockId="86.[151,1437,1214,2033]" box="[199,915,1287,1313]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9981E16FE72FAD8" box="[199,390,1287,1313]" italics="true" pageId="86" pageNumber="87">Mandibular palp</emphasis>
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: article 2, dorsal margin witha fringe of setae.
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</paragraph>
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<paragraph id="8BA236CCFFE3D94EC9981E3AFC19FABC" blockId="86.[151,1437,1214,2033]" box="[199,1005,1323,1349]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9981E3AFEC7FABC" box="[199,307,1323,1349]" italics="true" pageId="86" pageNumber="87">Maxilla 1</emphasis>
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: without a seta or setal cluster at the base of the palp article 1.
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</paragraph>
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<paragraph id="8BA236CCFFE3D94EC9981E5EFD4AFA74" blockId="86.[151,1437,1214,2033]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9981E5EFEAEFA90" box="[199,346,1359,1385]" italics="true" pageId="86" pageNumber="87">Gnathopod 1</emphasis>
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: basis, anterolateral margin with a few very short setae; carpus without a single or small cluster of setae at the anterodistal junction of the propodus.
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</paragraph>
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<paragraph id="8BA236CCFFE3D94EC9981E86FECAFA03" blockId="86.[151,1437,1214,2033]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9981E86FEAFFA48" box="[199,347,1431,1457]" italics="true" pageId="86" pageNumber="87">Gnathopod 2</emphasis>
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: basis with a few minute setae along the anterolateral margin but without long filter setae (setal lengths <20% 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="8BA236CCFFE3D94EC9981D12FD09F9E4" blockId="86.[151,1437,1214,2033]" box="[199,765,1539,1565]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9981D12FE9BF9E4" box="[199,367,1539,1565]" italics="true" pageId="86" pageNumber="87">Pereopods 5–7</emphasis>
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: propodus not expanded anteriorly.
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</paragraph>
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<paragraph id="8BA236CCFFE3D94EC9981D36FB48F9B8" blockId="86.[151,1437,1214,2033]" box="[199,1212,1575,1601]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9981D36FEC6F9B8" box="[199,306,1575,1601]" italics="true" pageId="86" pageNumber="87">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="8BA236CCFFE3D94EC9981D5AFB64F99F" blockId="86.[151,1437,1214,2033]" box="[199,1168,1611,1638]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9981D5AFEC6F99C" box="[199,306,1611,1637]" italics="true" pageId="86" pageNumber="87">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="8BA236CCFFE3D94EC9981D7EFB99F970" blockId="86.[151,1437,1214,2033]" box="[199,1133,1647,1673]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9981D7EFEFBF970" box="[199,271,1647,1673]" italics="true" pageId="86" pageNumber="87">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="8BA236CCFFE3D94EC9981D82FE72F954" blockId="86.[151,1437,1214,2033]" box="[199,390,1683,1709]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9981D82FE72F954" bold="true" box="[199,390,1683,1709]" pageId="86" pageNumber="87">Thumbed male:</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFFE3D94EC9981DA6FBEAF928" blockId="86.[151,1437,1214,2033]" box="[199,1054,1718,1745]" pageId="86" pageNumber="87">
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<emphasis id="B969EADEFFE3D94EC9981DA6FECEF928" box="[199,314,1719,1745]" italics="true" pageId="86" pageNumber="87">Antenna 2</emphasis>
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: without plumose setae on the flagellum and peduncular article 5.
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</paragraph>
|
||
<paragraph id="8BA236CCFFE3D94EC9981DCAFE78F8C4" blockId="86.[151,1437,1214,2033]" pageId="86" pageNumber="87">
|
||
<emphasis id="B969EADEFFE3D94EC9981DCAFEAEF90C" box="[199,346,1755,1781]" italics="true" pageId="86" pageNumber="87">Gnathopod 2</emphasis>
|
||
: propodus, palmar defining spines absent except in small males. Thumb distally acute or squared in minor males and squared in major males. Dactyl centrally toothed in minor forms and shallowly expanded proximally in major forms.
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFFE3D94EC9981C57FE9FF899" blockId="86.[151,1437,1214,2033]" box="[199,363,1862,1888]" pageId="86" pageNumber="87">
|
||
<emphasis id="B969EADEFFE3D94EC9981C57FE9FF899" bold="true" box="[199,363,1862,1888]" pageId="86" pageNumber="87">Adult female:</emphasis>
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFFE3D94EC9981C7AFBEAF87C" blockId="86.[151,1437,1214,2033]" box="[199,1054,1898,1925]" pageId="86" pageNumber="87">
|
||
<emphasis id="B969EADEFFE3D94EC9981C7AFECEF87C" box="[199,314,1899,1925]" italics="true" pageId="86" pageNumber="87">Antenna 2</emphasis>
|
||
: without plumose setae on the flagellum and peduncular article 5.
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFFE3D94EC9981C9EFA65F850" blockId="86.[151,1437,1214,2033]" box="[199,1425,1935,1961]" pageId="86" pageNumber="87">
|
||
<emphasis id="B969EADEFFE3D94EC9981C9EFEAEF850" box="[199,346,1935,1961]" italics="true" pageId="86" pageNumber="87">Gnathopod 2</emphasis>
|
||
: propodus, palm concave, palmar defining angle acute, distal to but close to the defining spines.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3076547FFE3D944C9981CA2FC10FEBB" lastPageId="92" lastPageNumber="93" pageId="86" pageNumber="87" type="discussion">
|
||
<paragraph id="8BA236CCFFE3D942C9981CA2FE09F872" blockId="86.[151,1437,1214,2033]" lastBlockId="90.[151,1437,1725,2040]" lastPageId="90" lastPageNumber="91" pageId="86" pageNumber="87">
|
||
<emphasis id="B969EADEFFE3D94EC9981CA2FECFF834" bold="true" box="[199,315,1971,1997]" pageId="86" pageNumber="87">Remarks.</emphasis>
|
||
The
|
||
<typeStatus id="54A6886EFFE3D94EC82B1CA2FE39F834" box="[372,461,1971,1997]" pageId="86" pageNumber="87" type="neotype">neotype</typeStatus>
|
||
(
|
||
<figureCitation id="13262A49FFE3D94EC8831CA2FDDBF834" box="[476,559,1971,1997]" captionStart="FIGURE 48" captionStartId="87.[151,250,1864,1888]" captionTargetBox="[157,1433,194,1834]" captionTargetId="figure-18@87.[151,1436,181,1841]" captionTargetPageId="87" captionText="FIGURE 48. Jassa herdmani (Walker, 1893). Neotype, adult male, minor form, 6.0 mm, NHM 1925.9.8: 1686. Port Erin breakwater, Isle of Man, England, November 1892, A. O. Walker, coll.Adult male 1, major form, 7.9 mm, 1 m below water surface on steel frame used to hold settling plates, Langstone Harbour, Plymouth, England, 26 March 1986, R. J. Trott, coll., IZ1986-041 (CMN). Lateral view: whole body; dorsal view: telson; other views medial. Scale 0.1 mm. Illustration after Conlan (1990)." figureDoi="http://doi.org/10.5281/zenodo.4580755" httpUri="https://zenodo.org/record/4580755/files/figure.png" pageId="86" pageNumber="87">Fig. 48</figureCitation>
|
||
), which was erected by
|
||
<bibRefCitation id="EF8C4B3DFFE3D94ECA631CA2FC14F834" author="Conlan, K. E." box="[828,992,1971,1997]" pageId="86" pageNumber="87" 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>
|
||
, is a minor form male with short thumb and toothed dactyl, corresponding with “The specimen originally described as
|
||
<taxonomicName id="4C1D4D4FFFE3D94ECD751CC6FB47F808" authorityName="Walker" authorityYear="1893" box="[1066,1203,2007,2033]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="86" pageNumber="87" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFE3D94ECD751CC6FB47F808" box="[1066,1203,2007,2033]" italics="true" pageId="86" pageNumber="87">P. herdmani</emphasis>
|
||
</taxonomicName>
|
||
, taken by Professor Herdman from a Compound Ascidian off the Island of Bute...” (
|
||
<bibRefCitation id="EF8C4B3DFFEFD942CADD1DACFBE3F921" author="Walker, A. O." box="[898,1047,1725,1752]" pageId="90" pageNumber="91" pagination="67 - 72" refId="ref107295" refString="Walker, A. O. (1911) Notes on Jassa falcata (Mont.). Transactions of the Liverpool Biological Society, 25, 67 - 72." type="journal article" year="1911">Walker 1911</bibRefCitation>
|
||
, p. 71).
|
||
<taxonomicName id="4C1D4D4FFFEFD942CD231DAFFADAF92E" authorityName="Walker" authorityYear="1893" box="[1148,1326,1725,1751]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="90" pageNumber="91" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFEFD942CD231DAFFADAF92E" box="[1148,1326,1725,1751]" italics="true" pageId="90" pageNumber="91">Jassa herdmani</emphasis>
|
||
</taxonomicName>
|
||
naturally co-occurs with
|
||
<taxonomicName id="4C1D4D4FFFEFD942C81A1DF3FE5BF902" authorityName="Uropod" baseAuthorityName="Montagu" baseAuthorityYear="1808" box="[325,431,1761,1787]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="90" pageNumber="91" phylum="Arthropoda" rank="species" species="falcata">
|
||
<emphasis id="B969EADEFFEFD942C81A1DF3FE5BF902" box="[325,431,1761,1787]" italics="true" pageId="90" pageNumber="91">J. falcata</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C1D4D4FFFEFD942C8B81DF3FD74F902" authorityName="Holmes" authorityYear="1905" box="[487,640,1762,1787]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="90" pageNumber="91" phylum="Arthropoda" rank="species" species="marmorata">
|
||
<emphasis id="B969EADEFFEFD942C8B81DF3FD74F902" box="[487,640,1762,1787]" italics="true" pageId="90" pageNumber="91">J. marmorata</emphasis>
|
||
</taxonomicName>
|
||
but the three species differ in microhabitat selection, life cycle, reproduction and temperature adaptation (
|
||
<bibRefCitation id="EF8C4B3DFFEFD942CB6C1C17FCAAF8D9" author="Beermann, J. & Franke, H. - D." box="[563,862,1797,1824]" journalOrPublisher="Marine Biology" pageId="90" pageNumber="91" pagination="951 - 957" part="159" refId="ref88522" refString="Beermann, J. & Franke, H. - D. (2012) Differences in resource utilization and behaviour between coexisting Jassa species (Crustacea, Amphipoda). Marine Biology, 159 (5), 951 - 957. https: // doi. org / 10.1007 / s 00227 - 011 - 1872 - 7" title="Differences in resource utilization and behaviour between coexisting Jassa species (Crustacea, Amphipoda)" type="journal article" year="2012">Beermann & Franke 2012</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EF8C4B3DFFEFD942CA351C17FB8DF8D9" author="Beermann, J. & Purz, A. K." box="[874,1145,1798,1824]" journalOrPublisher="Journal of Crustacean Biology" pageId="90" pageNumber="91" pagination="784 - 792" part="33" refId="ref88667" refString="Beermann, J. & Purz, A. K. (2013) Comparison of life history parameters in coexisting species of the genus J assa (Amphipoda, Ischyroceridae). Journal of Crustacean Biology, 33 (6), 784 - 792. https: // doi. org / 10.1163 / 1937240 X- 00002190" title="Comparison of life history parameters in coexisting species of the genus J assa (Amphipoda, Ischyroceridae)" type="journal article" year="2013">Beermann & Purz 2013</bibRefCitation>
|
||
). The identity of the three species can be easily confused, especially when small (
|
||
<bibRefCitation id="EF8C4B3DFFEFD942CBA11C3BFC1CF8BD" author="Sexton, E. W. & Reid, D. M." box="[766,1000,1833,1860]" pageId="90" pageNumber="91" pagination="29 - 91" refId="ref105015" refString="Sexton, E. W. & Reid, D. M. (1951) The life-history of the multiform species Jassa falcata (Montagu) (Crustacea Amphipoda) with a review of the bibliography of the species. Journal of the Linnean Society of London, Zoology, 42, 283, 29 - 91. https: // doi. org / 10.1111 / j. 1096 - 3642.1951. tb 01852. x" type="journal article" year="1951">Sexton & Reid 1951</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EF8C4B3DFFEFD942CAAB1C38FB73F8BD" author="Conlan, K. E." box="[1012,1159,1833,1860]" pageId="90" pageNumber="91" 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>
|
||
).
|
||
<bibRefCitation id="EF8C4B3DFFEFD942CDC51C38FAC9F8BD" author="Conlan, K. E." box="[1178,1341,1833,1860]" pageId="90" pageNumber="91" 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>
|
||
outlines how these can be distinguished on the basis of the antenna 2 plumosity, gnathopod 1 and 2 shape and setation and uropod 3 inner ramus spination.
|
||
</paragraph>
|
||
<caption id="DF626644FFE2D94FC9C81C59FA81F834" ID-DOI="http://doi.org/10.5281/zenodo.4580755" ID-Zenodo-Dep="4580755" httpUri="https://zenodo.org/record/4580755/files/figure.png" pageId="87" pageNumber="88" startId="87.[151,250,1864,1888]" targetBox="[157,1433,194,1834]" targetPageId="87">
|
||
<paragraph id="8BA236CCFFE2D94FC9C81C59FA81F834" blockId="87.[151,1436,1864,1997]" pageId="87" pageNumber="88">
|
||
<emphasis id="B969EADEFFE2D94FC9C81C59FEEBF899" bold="true" box="[151,287,1864,1888]" pageId="87" pageNumber="88">FIGURE 48.</emphasis>
|
||
<taxonomicName id="4C1D4D4FFFE2D94FC87B1C58FD95F898" authority="(Walker, 1893)" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[292,609,1864,1889]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="87" pageNumber="88" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFE2D94FC87B1C58FE36F899" box="[292,450,1864,1888]" italics="true" pageId="87" pageNumber="88">Jassa herdmani</emphasis>
|
||
(
|
||
<bibRefCitation id="EF8C4B3DFFE2D94FC8911C59FDADF898" author="Walker, A. O." box="[462,601,1864,1889]" pageId="87" pageNumber="88" pagination="79" refId="ref107143" refString="Walker, A. O. (1893) Podocerus herdmani, n. sp., In: Herdman, W. A., Sixth annual report of the Liverpool Marine Biology Committee and their biological station at Port Erin. P roceedings and Transactions of the Liverpool Biological Society. The Society, Liverpool, 1893, p. 79." type="journal article" year="1893">Walker, 1893</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
. Neotype, adult male, minor form, 6.0 mm, NHM 1925.9.8: 1686. Port Erin breakwater, Isle of Man, England, November 1892, A. O. Walker, coll. Adult male 1, major form, 7.9 mm, 1 m below water surface on steel frame used to hold settling plates, Langstone Harbour, Plymouth, England, 26 March 1986, R. J. Trott, coll., IZ1986-041 (CMN). Lateral view: whole body; dorsal view: telson; other views medial. Scale 0.1 mm. Illustration after
|
||
<bibRefCitation id="EF8C4B3DFFE2D94FCD841CA5FA86F834" author="Conlan, K. E." box="[1243,1394,1972,1997]" pageId="87" pageNumber="88" 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>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF626644FFEDD940C9C81C2EFC2CF811" ID-DOI="http://doi.org/10.5281/zenodo.4580757" ID-Zenodo-Dep="4580757" httpUri="https://zenodo.org/record/4580757/files/figure.png" pageId="88" pageNumber="89" startId="88.[151,250,1855,1879]" targetBox="[185,1403,189,1824]" targetPageId="88">
|
||
<paragraph id="8BA236CCFFEDD940C9C81C2EFC2CF811" blockId="88.[151,1437,1855,2024]" pageId="88" pageNumber="89">
|
||
<emphasis id="B969EADEFFEDD940C9C81C2EFEEBF8AE" bold="true" box="[151,287,1855,1879]" pageId="88" pageNumber="89">FIGURE 49.</emphasis>
|
||
<taxonomicName id="4C1D4D4FFFEDD940C87A1C51FD97F8A1" authority="(Walker, 1893)" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[293,611,1856,1880]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="88" pageNumber="89" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFEDD940C87A1C51FE37F8A1" box="[293,451,1856,1880]" italics="true" pageId="88" pageNumber="89">Jassa herdmani</emphasis>
|
||
(
|
||
<bibRefCitation id="EF8C4B3DFFEDD940C8901C51FDAFF8A1" author="Walker, A. O." box="[463,603,1856,1880]" pageId="88" pageNumber="89" pagination="79" refId="ref107143" refString="Walker, A. O. (1893) Podocerus herdmani, n. sp., In: Herdman, W. A., Sixth annual report of the Liverpool Marine Biology Committee and their biological station at Port Erin. P roceedings and Transactions of the Liverpool Biological Society. The Society, Liverpool, 1893, p. 79." type="journal article" year="1893">Walker, 1893</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
. Variation in thumb length relative to body length in males from Plymouth Sound, England, 14 April 1937, D. M. Reid, coll., from a buoy (SNM). Arrows refer to the associated gnathopod illustrations. The subadult male had a thumb visible inside the cuticle, indicating that it would molt next into a thumbed adult. Setae omitted except for those around the thumb and spines in order to landmark position changes with growth. All views lateral. Scale 0.1 mm. Linear regression assumptions failed for all plots. Illustration after
|
||
<bibRefCitation id="EF8C4B3DFFEDD940CA621CC1FC20F811" author="Conlan, K. E." box="[829,980,2000,2024]" pageId="88" pageNumber="89" 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>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF626644FFECD941C9C81DE3FB27F8AB" ID-DOI="http://doi.org/10.5281/zenodo.4580759" ID-Zenodo-Dep="4580759" httpUri="https://zenodo.org/record/4580759/files/figure.png" pageId="89" pageNumber="90" startId="89.[151,250,1778,1802]" targetBox="[151,1432,181,1754]" targetPageId="89">
|
||
<paragraph id="8BA236CCFFECD941C9C81DE3FB27F8AB" blockId="89.[151,1437,1778,1874]" pageId="89" pageNumber="90">
|
||
<emphasis id="B969EADEFFECD941C9C81DE3FED4F8F3" bold="true" box="[151,288,1778,1802]" pageId="89" pageNumber="90">FIGURE 50.</emphasis>
|
||
<taxonomicName id="4C1D4D4FFFECD941C8791DE2FD93F8F3" authority="(Walker, 1893)" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[294,615,1778,1802]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="89" pageNumber="90" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFECD941C8791DE2FE31F8F3" box="[294,453,1778,1802]" italics="true" pageId="89" pageNumber="90">Jassa herdmani</emphasis>
|
||
(
|
||
<bibRefCitation id="EF8C4B3DFFECD941C88C1DE3FDABF8F3" author="Walker, A. O." box="[467,607,1778,1802]" pageId="89" pageNumber="90" pagination="79" refId="ref107143" refString="Walker, A. O. (1893) Podocerus herdmani, n. sp., In: Herdman, W. A., Sixth annual report of the Liverpool Marine Biology Committee and their biological station at Port Erin. P roceedings and Transactions of the Liverpool Biological Society. The Society, Liverpool, 1893, p. 79." type="journal article" year="1893">Walker, 1893</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
. Adaptation of illustrations in
|
||
<bibRefCitation id="EF8C4B3DFFECD941CAC41DE3FB7BF8F3" author="Sexton, E. W. & Reid, D. M." box="[923,1167,1778,1802]" pageId="89" pageNumber="90" pagination="29 - 91" refId="ref105015" refString="Sexton, E. W. & Reid, D. M. (1951) The life-history of the multiform species Jassa falcata (Montagu) (Crustacea Amphipoda) with a review of the bibliography of the species. Journal of the Linnean Society of London, Zoology, 42, 283, 29 - 91. https: // doi. org / 10.1111 / j. 1096 - 3642.1951. tb 01852. x" type="journal article" year="1951">Sexton and Reid (1951)</bibRefCitation>
|
||
, with their figure numbers indicated. Antennae 1 (1A) and 2 (1B), gnathopod 1 (1C) pereopods 3–7 (1E, F, G, H, J): Plates 6-9, Specimen 1, Narrow-Form male J.CCLXXIII, from Trinity Buoy, Plymouth Docks, 14 May 1928, E. W. Sexton and D. W. Reid, colls.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF626644FFEFD942C9C81E8EFAB5F976" ID-DOI="http://doi.org/10.5281/zenodo.4580761" ID-Zenodo-Dep="4580761" httpUri="https://zenodo.org/record/4580761/files/figure.png" pageId="90" pageNumber="91" startId="90.[151,250,1439,1463]" targetBox="[177,1411,187,1410]" targetPageId="90">
|
||
<paragraph id="8BA236CCFFEFD942C9C81E8EFAB5F976" blockId="90.[151,1437,1439,1680]" pageId="90" pageNumber="91">
|
||
<emphasis id="B969EADEFFEFD942C9C81E8EFED4FA4E" bold="true" box="[151,288,1439,1463]" pageId="90" pageNumber="91">FIGURE 51.</emphasis>
|
||
<taxonomicName id="4C1D4D4FFFEFD942C8791EB1FD93FA4E" authority="(Walker, 1893)" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[294,615,1439,1463]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="90" pageNumber="91" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFEFD942C8791EB1FE31FA4E" box="[294,453,1439,1463]" italics="true" pageId="90" pageNumber="91">Jassa herdmani</emphasis>
|
||
(
|
||
<bibRefCitation id="EF8C4B3DFFEFD942C88C1E8EFDABFA4E" author="Walker, A. O." box="[467,607,1439,1463]" pageId="90" pageNumber="91" pagination="79" refId="ref107143" refString="Walker, A. O. (1893) Podocerus herdmani, n. sp., In: Herdman, W. A., Sixth annual report of the Liverpool Marine Biology Committee and their biological station at Port Erin. P roceedings and Transactions of the Liverpool Biological Society. The Society, Liverpool, 1893, p. 79." type="journal article" year="1893">Walker, 1893</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
. Adaptation of illustrations in
|
||
<bibRefCitation id="EF8C4B3DFFEFD942CAC41E8EFB7BFA4E" author="Sexton, E. W. & Reid, D. M." box="[923,1167,1439,1463]" pageId="90" pageNumber="91" pagination="29 - 91" refId="ref105015" refString="Sexton, E. W. & Reid, D. M. (1951) The life-history of the multiform species Jassa falcata (Montagu) (Crustacea Amphipoda) with a review of the bibliography of the species. Journal of the Linnean Society of London, Zoology, 42, 283, 29 - 91. https: // doi. org / 10.1111 / j. 1096 - 3642.1951. tb 01852. x" type="journal article" year="1951">Sexton and Reid (1951)</bibRefCitation>
|
||
, with their figure numbers indicated. Adult female gnathopod 2: Plate 10, Specimen 2, Narrow-Form female J.CXLIV (2E), dredging from a buoy at the entrance to Plymouth Docks, 23 August 1928, E. W. Sexton and D. W. Reid, colls. Juvenile male gnathopod 2: Plate 12, Specimen 7, Narrow-Form male, cut-across stage, J.5 (1): F
|
||
<subScript id="17993489FFEFD942CB8E1D0AFD2CF9D0" attach="left" box="[721,728,1563,1577]" fontSize="6" pageId="90" pageNumber="91">1</subScript>
|
||
of female J.CXLIV (7C). Transformation of non-thumbed (13D) to thumbed (13E) gnathopod 2: Plate 19, Specimen 13 (2), Male K. B. 11, from a scrape of a buoy moored outside the [Plymouth] Breakwater, 3 May 1930, E. W. Sexton and D. W. Reid, colls. Adult male gnathopod 2, major form: Plate 7, Specimen 1, Narrow-Form male J.CCLXXIII, from Trinity Buoy, Plymouth Docks, 14 May 1928, E. W. Sexton and D. W. Reid, colls.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BA236CCFFEFD943C9981C84FCF7FE54" blockId="90.[151,1437,1725,2040]" lastBlockId="91.[151,1443,150,753]" lastPageId="91" lastPageNumber="92" pageId="90" pageNumber="91">
|
||
<figureCitation id="13262A49FFEFD942C9981C84FEECF849" box="[199,280,1941,1968]" captionStart="FIGURE 49" captionStartId="88.[151,250,1855,1879]" captionTargetBox="[185,1403,189,1824]" captionTargetId="figure-22@88.[176,1411,181,1832]" captionTargetPageId="88" captionText="FIGURE 49. Jassa herdmani (Walker, 1893). Variation in thumb length relative to body length in males from Plymouth Sound, England, 14 April 1937, D. M. Reid, coll., from a buoy (SNM).Arrows refer to the associated gnathopod illustrations. The subadult male had a thumb visible inside the cuticle, indicating that it would molt next into a thumbed adult. Setae omitted except for those around the thumb and spines in order to landmark position changes with growth. All views lateral. Scale 0.1 mm. Linear regression assumptions failed for all plots. Illustration after Conlan (1990)." figureDoi="http://doi.org/10.5281/zenodo.4580757" httpUri="https://zenodo.org/record/4580757/files/figure.png" pageId="90" pageNumber="91">Fig. 49</figureCitation>
|
||
shows the thumb length relationships among specimens collected later by D.M. Reid from
|
||
<collectingRegion id="49D9F82EFFEFD942CC701C84FA68F856" box="[1327,1436,1941,1967]" country="United Kingdom" name="Plymouth" pageId="90" pageNumber="91">Plymouth</collectingRegion>
|
||
Harbour on
|
||
<date id="FFA3100CFFEFD942C8431CA8FE37F82D" box="[284,451,1977,2004]" pageId="90" pageNumber="91" value="1937-04-14">April 14, 1937</date>
|
||
. Although the collection was small, different morphologies of the minor and major form adult male are evident and the subadult male has a small pre-thumb before it molts into a (probably major form) thumbed male, judging by its large body length.
|
||
<bibRefCitation id="EF8C4B3DFFEED943CBE31B86FC3DFF48" author="Sexton, E. W. & Reid, D. M." box="[700,969,150,177]" pageId="91" pageNumber="92" pagination="29 - 91" refId="ref105015" refString="Sexton, E. W. & Reid, D. M. (1951) The life-history of the multiform species Jassa falcata (Montagu) (Crustacea Amphipoda) with a review of the bibliography of the species. Journal of the Linnean Society of London, Zoology, 42, 283, 29 - 91. https: // doi. org / 10.1111 / j. 1096 - 3642.1951. tb 01852. x" type="journal article" year="1951">Sexton and Reid (1951)</bibRefCitation>
|
||
called this pre-thumbed stage of the subadult male the “cut-across stage”. Reproductions of
|
||
<bibRefCitation id="EF8C4B3DFFEED943CB8A1BAAFC1BFF2C" author="Sexton, E. W. & Reid, D. M." box="[725,1007,186,213]" pageId="91" pageNumber="92" pagination="29 - 91" refId="ref105015" refString="Sexton, E. W. & Reid, D. M. (1951) The life-history of the multiform species Jassa falcata (Montagu) (Crustacea Amphipoda) with a review of the bibliography of the species. Journal of the Linnean Society of London, Zoology, 42, 283, 29 - 91. https: // doi. org / 10.1111 / j. 1096 - 3642.1951. tb 01852. x" type="journal article" year="1951">Sexton and Reid’s (1951)</bibRefCitation>
|
||
figures that are confirmed
|
||
<taxonomicName id="4C1D4D4FFFEED943CC461BAAFA68FF2C" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[1305,1436,187,213]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFEED943CC461BAAFA68FF2C" box="[1305,1436,187,213]" italics="true" pageId="91" pageNumber="92">J. herdmani</emphasis>
|
||
</taxonomicName>
|
||
are shown in
|
||
<figureCitation id="13262A49FFEED943C8711BCEFE76FF00" box="[302,386,222,249]" captionStart="FIGURE 50" captionStartId="89.[151,250,1778,1802]" captionTargetBox="[151,1432,181,1754]" captionTargetId="figure-18@89.[151,1436,181,1754]" captionTargetPageId="89" captionText="FIGURE 50. Jassa herdmani (Walker, 1893). Adaptation of illustrations in Sexton and Reid (1951), with their figure numbers indicated. Antennae 1 (1A) and 2 (1B), gnathopod 1 (1C) pereopods 3–7 (1E, F, G, H, J): Plates 6-9, Specimen 1, Narrow-Form male J.CCLXXIII, from Trinity Buoy, Plymouth Docks, 14 May 1928, E. W. Sexton and D. W. Reid, colls." figureDoi="http://doi.org/10.5281/zenodo.4580759" httpUri="https://zenodo.org/record/4580759/files/figure.png" pageId="91" pageNumber="92">Figs 50</figureCitation>
|
||
and
|
||
<figureCitation id="13262A49FFEED943C8E61BCFFE2CFF00" box="[441,472,222,249]" captionStart="FIGURE 51" captionStartId="90.[151,250,1439,1463]" captionTargetBox="[177,1411,187,1410]" captionTargetId="figure-22@90.[177,1411,181,1415]" captionTargetPageId="90" captionText="FIGURE 51. Jassa herdmani (Walker, 1893). Adaptation of illustrations in Sexton and Reid (1951), with their figure numbers indicated. Adult female gnathopod 2: Plate 10, Specimen 2, Narrow-Form female J.CXLIV (2E), dredging from a buoy at the entrance to Plymouth Docks, 23 August 1928, E. W. Sexton and D. W. Reid, colls. Juvenile male gnathopod 2: Plate 12, Specimen 7, Narrow-Form male, cut-across stage, J.5 (1): F1 of female J.CXLIV (7C). Transformation of non-thumbed (13D) to thumbed (13E) gnathopod 2: Plate 19, Specimen 13 (2), Male K. B. 11, from a scrape of a buoy moored outside the [Plymouth] Breakwater, 3 May 1930, E. W. Sexton and D. W. Reid, colls. Adult male gnathopod 2, major form: Plate 7, Specimen 1, Narrow-Form male J.CCLXXIII, from Trinity Buoy, Plymouth Docks, 14 May 1928, E. W. Sexton and D. W. Reid, colls." figureDoi="http://doi.org/10.5281/zenodo.4580761" httpUri="https://zenodo.org/record/4580761/files/figure.png" pageId="91" pageNumber="92">51</figureCitation>
|
||
. These specimens were collected in
|
||
<collectingRegion id="49D9F82EFFEED943CA2F1BCEFC29FF00" box="[880,989,223,249]" country="United Kingdom" name="Plymouth" pageId="91" pageNumber="92">Plymouth</collectingRegion>
|
||
Harbour at various dates between 1928 and 1930 and kept in aquaria, where changes in their morphologies were recorded as they molted. The transformation of the subadult male 13D to major form thumbed male 13E (their labels) is shown in
|
||
<figureCitation id="13262A49FFEED943CDFF1A36FB00FEB8" box="[1184,1268,294,321]" captionStart="FIGURE 51" captionStartId="90.[151,250,1439,1463]" captionTargetBox="[177,1411,187,1410]" captionTargetId="figure-22@90.[177,1411,181,1415]" captionTargetPageId="90" captionText="FIGURE 51. Jassa herdmani (Walker, 1893). Adaptation of illustrations in Sexton and Reid (1951), with their figure numbers indicated. Adult female gnathopod 2: Plate 10, Specimen 2, Narrow-Form female J.CXLIV (2E), dredging from a buoy at the entrance to Plymouth Docks, 23 August 1928, E. W. Sexton and D. W. Reid, colls. Juvenile male gnathopod 2: Plate 12, Specimen 7, Narrow-Form male, cut-across stage, J.5 (1): F1 of female J.CXLIV (7C). Transformation of non-thumbed (13D) to thumbed (13E) gnathopod 2: Plate 19, Specimen 13 (2), Male K. B. 11, from a scrape of a buoy moored outside the [Plymouth] Breakwater, 3 May 1930, E. W. Sexton and D. W. Reid, colls. Adult male gnathopod 2, major form: Plate 7, Specimen 1, Narrow-Form male J.CCLXXIII, from Trinity Buoy, Plymouth Docks, 14 May 1928, E. W. Sexton and D. W. Reid, colls." figureDoi="http://doi.org/10.5281/zenodo.4580761" httpUri="https://zenodo.org/record/4580761/files/figure.png" pageId="91" pageNumber="92">Fig. 51</figureCitation>
|
||
. They mistook these specimens as
|
||
<taxonomicName id="4C1D4D4FFFEED943C8281A5AFE15FE9C" authorityName="Uropod" baseAuthorityName="Montagu" baseAuthorityYear="1808" box="[375,481,331,357]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="falcata">
|
||
<emphasis id="B969EADEFFEED943C8281A5AFE15FE9C" box="[375,481,331,357]" italics="true" pageId="91" pageNumber="92">J. falcata</emphasis>
|
||
</taxonomicName>
|
||
, calling them the ʺNarrow Form” of
|
||
<emphasis id="B969EADEFFEED943CAD41A5AFC09FE9C" box="[907,1021,331,357]" italics="true" pageId="91" pageNumber="92">
|
||
<taxonomicName id="4C1D4D4FFFEED943CAD41A5AFC0DFE9C" authorityName="Uropod" baseAuthorityName="Montagu" baseAuthorityYear="1808" box="[907,1017,331,357]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="falcata">J. falcata</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
The females of the two species also differ subtly, with the palmar angle of the gnathopod 2 propodus more bulbous and farther from the defining spines in
|
||
<taxonomicName id="4C1D4D4FFFEED943C9EB1A82FEE8FE54" authorityName="Uropod" baseAuthorityName="Montagu" baseAuthorityYear="1808" box="[180,284,403,429]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="falcata">
|
||
<emphasis id="B969EADEFFEED943C9EB1A82FEE8FE54" box="[180,284,403,429]" italics="true" pageId="91" pageNumber="92">J. falcata</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="13262A49FFEED943C8741A82FE89FE54" box="[299,381,403,429]" captionStart="FIGURE 44" captionStartId="82.[151,250,1172,1196]" captionTargetBox="[175,1411,181,1141]" captionTargetId="figure-22@82.[170,1417,181,1148]" captionTargetPageId="82" captionText="FIGURE 44. Jassa falcata (Montagu, 1808). Adult male 1, major form, 11.0 mm; juvenile male 2, 7.0 mm; adult male 3, major form, 6.5 mm; juvenile male 4, 4.5 mm; and adult female, 7.0 mm. Stoer Bay, Sutherland, Scotland, 22 October 1937, D. M. Reid, coll., very abundant on the floats of coastal salmon nets (SNM). Developing new cuticle is visible inside the propodus and dactyl of the juvenile male 2 gnathopod 2, not yet at the terminal molt as the new cuticle lacks a thumb. All views medial. Scale 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.4580746" httpUri="https://zenodo.org/record/4580746/files/figure.png" pageId="91" pageNumber="92">Fig. 44</figureCitation>
|
||
) than in
|
||
<taxonomicName id="4C1D4D4FFFEED943C8BF1A82FD91FE54" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[480,613,403,429]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFEED943C8BF1A82FD91FE54" box="[480,613,403,429]" italics="true" pageId="91" pageNumber="92">J. herdmani</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="13262A49FFEED943CB2B1A82FD3EFE54" box="[628,714,402,429]" captionStart="FIGURE 51" captionStartId="90.[151,250,1439,1463]" captionTargetBox="[177,1411,187,1410]" captionTargetId="figure-22@90.[177,1411,181,1415]" captionTargetPageId="90" captionText="FIGURE 51. Jassa herdmani (Walker, 1893). Adaptation of illustrations in Sexton and Reid (1951), with their figure numbers indicated. Adult female gnathopod 2: Plate 10, Specimen 2, Narrow-Form female J.CXLIV (2E), dredging from a buoy at the entrance to Plymouth Docks, 23 August 1928, E. W. Sexton and D. W. Reid, colls. Juvenile male gnathopod 2: Plate 12, Specimen 7, Narrow-Form male, cut-across stage, J.5 (1): F1 of female J.CXLIV (7C). Transformation of non-thumbed (13D) to thumbed (13E) gnathopod 2: Plate 19, Specimen 13 (2), Male K. B. 11, from a scrape of a buoy moored outside the [Plymouth] Breakwater, 3 May 1930, E. W. Sexton and D. W. Reid, colls. Adult male gnathopod 2, major form: Plate 7, Specimen 1, Narrow-Form male J.CCLXXIII, from Trinity Buoy, Plymouth Docks, 14 May 1928, E. W. Sexton and D. W. Reid, colls." figureDoi="http://doi.org/10.5281/zenodo.4580761" httpUri="https://zenodo.org/record/4580761/files/figure.png" pageId="91" pageNumber="92">Figs 51</figureCitation>
|
||
,
|
||
<figureCitation id="13262A49FFEED943CB891A83FD02FE54" box="[726,758,402,429]" captionStart="FIGURE 52" captionStartId="91.[151,250,1679,1703]" captionTargetBox="[187,1399,785,1648]" captionTargetId="figure-314@91.[177,1411,777,1656]" captionTargetPageId="91" captionText="FIGURE 52. Jassa herdmani (Walker, 1893). Adult female, 7.2 mm, 1 m below water surface on steel frame used to hold settling plates, Langstone Harbour, Plymouth, England, 26 March 1986, R. J. Trott, coll., IZ1986-041 (CMN). Lateral view: whole body; dorsal view: telson; other views medial. Scale 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.4580763" httpUri="https://zenodo.org/record/4580763/files/figure.png" pageId="91" pageNumber="92">52</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFFEED943C9981AA6FF4EFD7C" blockId="91.[151,1443,150,753]" pageId="91" pageNumber="92">
|
||
The dactyl toothing appears to vary with thumb length. In the minor form with short, distal thumb (
|
||
<figureCitation id="13262A49FFEED943CC461AA6FA99FE28" box="[1305,1389,439,465]" captionStart="FIGURE 48" captionStartId="87.[151,250,1864,1888]" captionTargetBox="[157,1433,194,1834]" captionTargetId="figure-18@87.[151,1436,181,1841]" captionTargetPageId="87" captionText="FIGURE 48. Jassa herdmani (Walker, 1893). Neotype, adult male, minor form, 6.0 mm, NHM 1925.9.8: 1686. Port Erin breakwater, Isle of Man, England, November 1892, A. O. Walker, coll.Adult male 1, major form, 7.9 mm, 1 m below water surface on steel frame used to hold settling plates, Langstone Harbour, Plymouth, England, 26 March 1986, R. J. Trott, coll., IZ1986-041 (CMN). Lateral view: whole body; dorsal view: telson; other views medial. Scale 0.1 mm. Illustration after Conlan (1990)." figureDoi="http://doi.org/10.5281/zenodo.4580755" httpUri="https://zenodo.org/record/4580755/files/figure.png" pageId="91" pageNumber="92">Figs 48</figureCitation>
|
||
and
|
||
<figureCitation id="13262A49FFEED943C9C81ACAFF42FE0C" box="[151,182,475,501]" captionStart="FIGURE 49" captionStartId="88.[151,250,1855,1879]" captionTargetBox="[185,1403,189,1824]" captionTargetId="figure-22@88.[176,1411,181,1832]" captionTargetPageId="88" captionText="FIGURE 49. Jassa herdmani (Walker, 1893). Variation in thumb length relative to body length in males from Plymouth Sound, England, 14 April 1937, D. M. Reid, coll., from a buoy (SNM).Arrows refer to the associated gnathopod illustrations. The subadult male had a thumb visible inside the cuticle, indicating that it would molt next into a thumbed adult. Setae omitted except for those around the thumb and spines in order to landmark position changes with growth. All views lateral. Scale 0.1 mm. Linear regression assumptions failed for all plots. Illustration after Conlan (1990)." figureDoi="http://doi.org/10.5281/zenodo.4580757" httpUri="https://zenodo.org/record/4580757/files/figure.png" pageId="91" pageNumber="92">49</figureCitation>
|
||
), the dactyl tooth is pronounced. In the major form with longer, more proximal thumb (
|
||
<figureCitation id="13262A49FFEED943CDD01ACAFB15FE0C" box="[1167,1249,474,501]" captionStart="FIGURE 51" captionStartId="90.[151,250,1439,1463]" captionTargetBox="[177,1411,187,1410]" captionTargetId="figure-22@90.[177,1411,181,1415]" captionTargetPageId="90" captionText="FIGURE 51. Jassa herdmani (Walker, 1893). Adaptation of illustrations in Sexton and Reid (1951), with their figure numbers indicated. Adult female gnathopod 2: Plate 10, Specimen 2, Narrow-Form female J.CXLIV (2E), dredging from a buoy at the entrance to Plymouth Docks, 23 August 1928, E. W. Sexton and D. W. Reid, colls. Juvenile male gnathopod 2: Plate 12, Specimen 7, Narrow-Form male, cut-across stage, J.5 (1): F1 of female J.CXLIV (7C). Transformation of non-thumbed (13D) to thumbed (13E) gnathopod 2: Plate 19, Specimen 13 (2), Male K. B. 11, from a scrape of a buoy moored outside the [Plymouth] Breakwater, 3 May 1930, E. W. Sexton and D. W. Reid, colls. Adult male gnathopod 2, major form: Plate 7, Specimen 1, Narrow-Form male J.CCLXXIII, from Trinity Buoy, Plymouth Docks, 14 May 1928, E. W. Sexton and D. W. Reid, colls." figureDoi="http://doi.org/10.5281/zenodo.4580761" httpUri="https://zenodo.org/record/4580761/files/figure.png" pageId="91" pageNumber="92">Fig. 51</figureCitation>
|
||
, specimen 13E), the dactyl tooth is shallower and more proximal. In the large major form with a long, proximal thumb (
|
||
<figureCitation id="13262A49FFEED943CC421AEEFA80FDE0" box="[1309,1396,511,537]" captionStart="FIGURE 48" captionStartId="87.[151,250,1864,1888]" captionTargetBox="[157,1433,194,1834]" captionTargetId="figure-18@87.[151,1436,181,1841]" captionTargetPageId="87" captionText="FIGURE 48. Jassa herdmani (Walker, 1893). Neotype, adult male, minor form, 6.0 mm, NHM 1925.9.8: 1686. Port Erin breakwater, Isle of Man, England, November 1892, A. O. Walker, coll.Adult male 1, major form, 7.9 mm, 1 m below water surface on steel frame used to hold settling plates, Langstone Harbour, Plymouth, England, 26 March 1986, R. J. Trott, coll., IZ1986-041 (CMN). Lateral view: whole body; dorsal view: telson; other views medial. Scale 0.1 mm. Illustration after Conlan (1990)." figureDoi="http://doi.org/10.5281/zenodo.4580755" httpUri="https://zenodo.org/record/4580755/files/figure.png" pageId="91" pageNumber="92">Figs 48</figureCitation>
|
||
,
|
||
<figureCitation id="13262A49FFEED943CCDF1AEEFA57FDE0" box="[1408,1443,511,537]" captionStart="FIGURE 49" captionStartId="88.[151,250,1855,1879]" captionTargetBox="[185,1403,189,1824]" captionTargetId="figure-22@88.[176,1411,181,1832]" captionTargetPageId="88" captionText="FIGURE 49. Jassa herdmani (Walker, 1893). Variation in thumb length relative to body length in males from Plymouth Sound, England, 14 April 1937, D. M. Reid, coll., from a buoy (SNM).Arrows refer to the associated gnathopod illustrations. The subadult male had a thumb visible inside the cuticle, indicating that it would molt next into a thumbed adult. Setae omitted except for those around the thumb and spines in order to landmark position changes with growth. All views lateral. Scale 0.1 mm. Linear regression assumptions failed for all plots. Illustration after Conlan (1990)." figureDoi="http://doi.org/10.5281/zenodo.4580757" httpUri="https://zenodo.org/record/4580757/files/figure.png" pageId="91" pageNumber="92">49</figureCitation>
|
||
and
|
||
<figureCitation id="13262A49FFEED943C9991933FF10FDC4" box="[198,228,546,573]" captionStart="FIGURE 51" captionStartId="90.[151,250,1439,1463]" captionTargetBox="[177,1411,187,1410]" captionTargetId="figure-22@90.[177,1411,181,1415]" captionTargetPageId="90" captionText="FIGURE 51. Jassa herdmani (Walker, 1893). Adaptation of illustrations in Sexton and Reid (1951), with their figure numbers indicated. Adult female gnathopod 2: Plate 10, Specimen 2, Narrow-Form female J.CXLIV (2E), dredging from a buoy at the entrance to Plymouth Docks, 23 August 1928, E. W. Sexton and D. W. Reid, colls. Juvenile male gnathopod 2: Plate 12, Specimen 7, Narrow-Form male, cut-across stage, J.5 (1): F1 of female J.CXLIV (7C). Transformation of non-thumbed (13D) to thumbed (13E) gnathopod 2: Plate 19, Specimen 13 (2), Male K. B. 11, from a scrape of a buoy moored outside the [Plymouth] Breakwater, 3 May 1930, E. W. Sexton and D. W. Reid, colls. Adult male gnathopod 2, major form: Plate 7, Specimen 1, Narrow-Form male J.CCLXXIII, from Trinity Buoy, Plymouth Docks, 14 May 1928, E. W. Sexton and D. W. Reid, colls." figureDoi="http://doi.org/10.5281/zenodo.4580761" httpUri="https://zenodo.org/record/4580761/files/figure.png" pageId="91" pageNumber="92">51</figureCitation>
|
||
, specimen 1), the dactyl is expanded proximally, rather than more centrally toothed. One of the key features for
|
||
<taxonomicName id="4C1D4D4FFFEED943C99F1956FEB2FD98" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[192,326,583,609]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFEED943C99F1956FEB2FD98" box="[192,326,583,609]" italics="true" pageId="91" pageNumber="92">J. herdmani</emphasis>
|
||
</taxonomicName>
|
||
is the cluster of setae on the dorsal margin of the mandibular palp article 2. This is shown in
|
||
<figureCitation id="13262A49FFEED943CC2F1956FF42FD7C" captionStart="FIGURE 53" captionStartId="92.[151,250,1938,1962]" captionTargetBox="[189,1398,345,1912]" captionTargetId="figure-112@92.[189,1398,345,1914]" captionTargetPageId="92" captionText="FIGURE 53. Jassa herdmani (Walker, 1893).Adult male 1, major form, 7.9 mm, 1 m below water surface on steel frame used to hold settling plates, Langstone Harbour, Plymouth, England, 26 March 1986, R. J. Trott, coll., IZ1986-041 (CMN). Mouthparts. Lateral views: maxilla 1 and maxilla 2; frontal view: upper lip; other views medial. Scale 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.4580765" httpUri="https://zenodo.org/record/4580765/files/figure.png" pageId="91" pageNumber="92">Fig. 53</figureCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFFEED943C998199EFE90FD08" blockId="91.[151,1443,150,753]" pageId="91" pageNumber="92">
|
||
One specimen noted in
|
||
<bibRefCitation id="EF8C4B3DFFEED943C894199EFD67FD50" author="Lobo, J. & Ferreira, M. S. & Antunes, I. C. & Teixeira, M. A. L. & Borges, L. M. S. & Sousa, R. & Gomes, P. A. & Costa, M. H. & Cunha, M. R. & Costa, F. O." box="[459,659,655,681]" pageId="91" pageNumber="92" pagination="147 - 157" refId="ref99132" refString="Lobo, J., Ferreira, M. S., Antunes, I. C., Teixeira, M. A. L., Borges, L. M. S., Sousa, R., Gomes, P. A., Costa, M. H., Cunha, M. R. & Costa, F. O. (2017) Contrasting morphological and DNA barcode-suggested species boundaries among shallow-water amphipod fauna from the southern European Atlantic coast. Genome, 60, 147 - 157. https: // doi. org / 10.1139 / gen- 2016 - 0009" type="journal article" year="2017">
|
||
Lobo
|
||
<emphasis id="B969EADEFFEED943CB53199EFDB7FD50" box="[524,579,655,681]" italics="true" pageId="91" pageNumber="92">et al.</emphasis>
|
||
(2017)
|
||
</bibRefCitation>
|
||
as being
|
||
<taxonomicName id="4C1D4D4FFFEED943CBA4199EFCCCFD51" authorityName="Leach" authorityYear="1814" box="[763,824,655,680]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B969EADEFFEED943CBA4199EFCCCFD51" box="[763,824,655,680]" italics="true" pageId="91" pageNumber="92">Jassa</emphasis>
|
||
</taxonomicName>
|
||
sp. is
|
||
<taxonomicName id="4C1D4D4FFFEED943CA20199EFBF5FD50" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[895,1025,655,681]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFEED943CA20199EFBF5FD50" box="[895,1025,655,681]" italics="true" pageId="91" pageNumber="92">J. herdmani</emphasis>
|
||
</taxonomicName>
|
||
(specimen examined
|
||
<date id="FFA3100CFFEED943CDAD199EFA65FD50" box="[1266,1425,655,681]" pageId="91" pageNumber="92" value="2019-03-04">4 March 2019</date>
|
||
). This is likely the
|
||
<taxonomicName id="4C1D4D4FFFEED943C80219A2FE6EFD35" authorityName="Leach" authorityYear="1814" box="[349,410,691,716]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B969EADEFFEED943C80219A2FE6EFD35" box="[349,410,691,716]" italics="true" pageId="91" pageNumber="92">Jassa</emphasis>
|
||
</taxonomicName>
|
||
sp. in their
|
||
<figureCitation id="13262A49FFEED943CB7C19A2FD91FD34" box="[547,613,691,717]" captionStart="FIGURE 2" captionStartId="12.[151,250,1775,1799]" captionTargetBox="[151,1436,189,1751]" captionTargetId="figure-22@12.[151,1436,181,1751]" captionTargetPageId="12" captionText="FIGURE 2. Progressive discovery of Jassa marmorata from 1850 to 2020. Red dot: identification confirmed by specimen examination; green triangle: literature record (Supplementary Table S1) with identification not confirmed but judged likely to be this species; blue x: suspected or known to be on the hull or interior of a boat or ship." figureDoi="http://doi.org/10.5281/zenodo.4580628" httpUri="https://zenodo.org/record/4580628/files/figure.png" pageId="91" pageNumber="92">Fig. 2</figureCitation>
|
||
that matches other specimens of
|
||
<taxonomicName id="4C1D4D4FFFEED943CA8119A2FB96FD34" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[990,1122,691,717]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFEED943CA8119A2FB96FD34" box="[990,1122,691,717]" italics="true" pageId="91" pageNumber="92">J. herdmani</emphasis>
|
||
</taxonomicName>
|
||
from the North Sea in their CO1-5P sequence.
|
||
</paragraph>
|
||
<caption id="DF626644FFEED943C9C81D9EFCF7F916" ID-DOI="http://doi.org/10.5281/zenodo.4580763" ID-Zenodo-Dep="4580763" httpUri="https://zenodo.org/record/4580763/files/figure.png" pageId="91" pageNumber="92" startId="91.[151,250,1679,1703]" targetBox="[187,1399,785,1648]" targetPageId="91">
|
||
<paragraph id="8BA236CCFFEED943C9C81D9EFCF7F916" blockId="91.[151,1437,1679,1776]" pageId="91" pageNumber="92">
|
||
<emphasis id="B969EADEFFEED943C9C81D9EFED4F95E" bold="true" box="[151,288,1679,1703]" pageId="91" pageNumber="92">FIGURE 52.</emphasis>
|
||
<taxonomicName id="4C1D4D4FFFEED943C8781D81FD9CF951" authority="(Walker, 1893)" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[295,616,1680,1704]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFEED943C8781D81FE32F951" box="[295,454,1680,1704]" italics="true" pageId="91" pageNumber="92">Jassa herdmani</emphasis>
|
||
(
|
||
<bibRefCitation id="EF8C4B3DFFEED943C88C1D81FDABF951" author="Walker, A. O." box="[467,607,1680,1704]" pageId="91" pageNumber="92" pagination="79" refId="ref107143" refString="Walker, A. O. (1893) Podocerus herdmani, n. sp., In: Herdman, W. A., Sixth annual report of the Liverpool Marine Biology Committee and their biological station at Port Erin. P roceedings and Transactions of the Liverpool Biological Society. The Society, Liverpool, 1893, p. 79." type="journal article" year="1893">Walker, 1893</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
. Adult female, 7.2 mm, 1 m below water surface on steel frame used to hold settling plates, Langstone Harbour, Plymouth, England, 26 March 1986, R. J. Trott, coll., IZ1986-041 (CMN). Lateral view: whole body; dorsal view: telson; other views medial. Scale 0.1 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BA236CCFFEED944C9981C0FFC10FEBB" blockId="91.[151,1437,1822,2029]" lastBlockId="92.[151,1437,150,322]" lastPageId="92" lastPageNumber="93" pageId="91" pageNumber="92">
|
||
The finding of a single juvenile female in coral rubble at
|
||
<collectingRegion id="49D9F82EFFEED943CA1F1C0FFC7FF8C1" box="[832,907,1822,1848]" country="Jordan" name="Al 'Aqabah" pageId="91" pageNumber="92">Aqaba</collectingRegion>
|
||
,
|
||
<collectingCountry id="F30A765CFFEED943CAC91C0FFC2BF8C1" box="[918,991,1822,1848]" name="Jordan" pageId="91" pageNumber="92">Jordan</collectingCountry>
|
||
by
|
||
<bibRefCitation id="EF8C4B3DFFEED943CD551C0FFAEFF8C1" author="Lyons, J. & Myers, A. A." box="[1034,1307,1822,1848]" pageId="91" pageNumber="92" pagination="597 - 621" refId="ref99322" refString="Lyons, J. & Myers, A. A. (1991) Amphipoda Gammaridea from coral rubble in the Gulf of Aqaba, Red Sea: families Dexaminidae, Eusiridae, Isaeidae, Ischyroceridae, Leucothoidae, Liljeborgiidae and Lysianassidae. Journal of Natural History, 25, 597 - 621. https: // doi. org / 10.1080 / 00222939100770381" type="journal article" year="1991">Lyons and Myers (1991)</bibRefCitation>
|
||
(identification confirmed) places the range of
|
||
<taxonomicName id="4C1D4D4FFFEED943CB751C52FD5AF8A5" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[554,686,1858,1884]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFEED943CB751C52FD5AF8A5" box="[554,686,1858,1884]" italics="true" pageId="91" pageNumber="92">J. herdmani</emphasis>
|
||
</taxonomicName>
|
||
far outside the northeast Atlantic coast and western Mediterranean Sea where it has most often been collected (
|
||
<figureCitation id="13262A49FFEED943CB201C77FD37F879" box="[639,707,1894,1920]" captionStart="FIGURE 9" captionStartId="20.[151,250,1907,1931]" captionTargetBox="[224,1363,181,1883]" captionTargetId="figure-22@20.[224,1363,181,1883]" captionTargetPageId="20" captionText="FIGURE 9. Records of Northern Hemisphere species of Jassa that were found in the eastern and/or western North Atlantic and seas, along with J. kimi in the western Pacific. Red dot: identification confirmed by specimen examination; green triangle: literature record (Supplementary Table S1) with identification not confirmed but judged likely to be this species; blue x: suspected or known to be on the hull or interior of a boat or ship." figureDoi="http://doi.org/10.5281/zenodo.4580652" httpUri="https://zenodo.org/record/4580652/files/figure.png" pageId="91" pageNumber="92">Fig. 9</figureCitation>
|
||
). This suggests that
|
||
<taxonomicName id="4C1D4D4FFFEED943CAFA1C76FBDDF879" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[933,1065,1894,1920]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFEED943CAFA1C76FBDDF879" box="[933,1065,1894,1920]" italics="true" pageId="91" pageNumber="92">J. herdmani</emphasis>
|
||
</taxonomicName>
|
||
may have a propensity for exotic dispersal similar to
|
||
<emphasis id="B969EADEFFEED943C82F1C9AFD7DF85D" box="[368,649,1930,1956]" italics="true" pageId="91" pageNumber="92">
|
||
<taxonomicName id="4C1D4D4FFFEED943C82F1C9AFDFEF85D" authorityName="Holmes" authorityYear="1905" box="[368,522,1931,1956]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="marmorata">J. marmorata</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C1D4D4FFFEED943CB4A1C9AFD7DF85D" authorityName="Conlan" authorityYear="1990" box="[533,649,1930,1956]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="slatteryi">J. slatteryi</taxonomicName>
|
||
</emphasis>
|
||
and
|
||
<emphasis id="B969EADEFFEED943CBE01C9AFCCCF85D" box="[703,824,1931,1956]" italics="true" pageId="91" pageNumber="92">
|
||
<taxonomicName id="4C1D4D4FFFEED943CBE01C9AFCC1F85D" authorityName="Conlan" authorityYear="1990" box="[703,821,1931,1956]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="91" pageNumber="92" phylum="Arthropoda" rank="species" species="morinoi">J. morinoi</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
It commonly fouls offshore structures in the North Sea (oil and gas platforms, wind turbines and shipwrecks) (
|
||
<bibRefCitation id="EF8C4B3DFFEED943CBB31CBFFC4DF831" author="Coolen, J. W. & Van Der Weide, B. & Cuperus, J. & Blomberg, M. & Van Moorsel, G. W. & Faasse, M. A. & Bos, O. G. & Degraer, S. & Lindeboom, H. J." box="[748,953,1966,1992]" pageId="91" pageNumber="92" pagination="1250 - 1265" refId="ref91220" refString="Coolen, J. W., Van Der Weide, B., Cuperus, J., Blomberg, M., Van Moorsel, G. W., Faasse, M. A., Bos, O. G., Degraer, S. & Lindeboom, H. J. (2018) Benthic biodiversity on old platforms, young wind farms, and rocky reefs. ICES Journal of Marine Science, 77 (3), 1250 - 1265. https: // doi. org / 10.1093 / icesjms / fsy 092" type="journal article" year="2018">
|
||
Coolen
|
||
<emphasis id="B969EADEFFEED943CA1C1CBEFC8EF831" box="[835,890,1966,1992]" italics="true" pageId="91" pageNumber="92">et al.</emphasis>
|
||
2018
|
||
</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EF8C4B3DFFEED943CA9C1CBFFB3EF831" author="Luttikhuizen, P. C. & Beermann, J. & Crooijmans, R. P. M. A. & Jak, R. G. & Coolen, J. W. P." box="[963,1226,1966,1992]" pageId="91" pageNumber="92" pagination="133 - 142" refId="ref99243" refString="Luttikhuizen, P. C., Beermann, J., Crooijmans, R. P. M. A., Jak, R. G. & Coolen, J. W. P. (2019) Low genetic connectivity in a fouling amphipod among man-made structures in the southern North Sea. Marine Ecology Progress Series, 615, 133 - 142. https: // doi. org / 10.3354 / meps 12929" type="journal article" year="2019">
|
||
Luttikhuizen
|
||
<emphasis id="B969EADEFFEED943CD091CBEFB78F831" box="[1110,1164,1966,1992]" italics="true" pageId="91" pageNumber="92">et al.</emphasis>
|
||
2019
|
||
</bibRefCitation>
|
||
) which are thought to supply extended shallow, hard substrate and it has been collected on buoys (
|
||
<bibRefCitation id="EF8C4B3DFFEED943CD5E1CC3FB0EF814" author="Sexton, E. W. & Reid, D. M." box="[1025,1274,2002,2029]" pageId="91" pageNumber="92" pagination="29 - 91" refId="ref105015" refString="Sexton, E. W. & Reid, D. M. (1951) The life-history of the multiform species Jassa falcata (Montagu) (Crustacea Amphipoda) with a review of the bibliography of the species. Journal of the Linnean Society of London, Zoology, 42, 283, 29 - 91. https: // doi. org / 10.1111 / j. 1096 - 3642.1951. tb 01852. x" type="journal article" year="1951">Sexton and Reid 1951</bibRefCitation>
|
||
) and boat bottoms as far back as 1890 (NHM
|
||
<date id="FFA3100CFFE9D944CB5C1B87FD98FF48" box="[515,620,150,177]" pageId="92" pageNumber="93" value="1925-09-08">1925.9.8</date>
|
||
:1602). The Suez Canal is a transportation route for many exotic species, resulting in the eastern Mediterranean having many more introductions than the western Mediterranean (
|
||
<bibRefCitation id="EF8C4B3DFFE9D944CC7A1BAAFF20FF00" author="Galil, B. S. & Boero, F. & Fraschetti, S. & Piraino, S. & Campbell, M. L. & Hewitt, C. L. & Carlton, J. T. & Cook, E. J. & Jelmert, A. & Macpherson, E. & Marchini, A. & Occhipinti-Ambrogi, A. & McKenzie, C. H. & Minchin, D. & Ojaveer, H. & Olenin, S. & Ruiz, G." pageId="92" pageNumber="93" pagination="43 - 45" refId="ref93990" refString="Galil, B. S., Boero, F., Fraschetti, S., Piraino, S., Campbell, M. L., Hewitt, C. L., Carlton, J. T., Cook, E. J., Jelmert, A., Macpherson, E., Marchini, A., Occhipinti-Ambrogi, A., McKenzie, C. H., Minchin, D., Ojaveer, H., Olenin, S. & Ruiz, G. (2015) The enlargement of the Suez Canal and introduction of non-indigenous species to the Mediterranean Sea. Limnology and Oceanography Bulletin, 24 (2), 43 - 45. https: // doi. org / 10.1002 / lob. 10036" type="journal article" year="2015">
|
||
Galil
|
||
<emphasis id="B969EADEFFE9D944CC3A1BAAFA69FF2C" box="[1381,1437,187,213]" italics="true" pageId="92" pageNumber="93">et al.</emphasis>
|
||
2015
|
||
</bibRefCitation>
|
||
).
|
||
<bibRefCitation id="EF8C4B3DFFE9D944C9B81BCEFE03FF00" author="Lyons, J. & Myers, A. A." box="[231,503,223,249]" pageId="92" pageNumber="93" pagination="597 - 621" refId="ref99322" refString="Lyons, J. & Myers, A. A. (1991) Amphipoda Gammaridea from coral rubble in the Gulf of Aqaba, Red Sea: families Dexaminidae, Eusiridae, Isaeidae, Ischyroceridae, Leucothoidae, Liljeborgiidae and Lysianassidae. Journal of Natural History, 25, 597 - 621. https: // doi. org / 10.1080 / 00222939100770381" type="journal article" year="1991">Lyons and Myers (1991)</bibRefCitation>
|
||
suggest that
|
||
<taxonomicName id="4C1D4D4FFFE9D944CBD61BCEFCF8FF00" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[649,780,223,249]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="92" pageNumber="93" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFE9D944CBD61BCEFCF8FF00" box="[649,780,223,249]" italics="true" pageId="92" pageNumber="93">J. herdmani</emphasis>
|
||
</taxonomicName>
|
||
may be on the Atlantic coast of central Africa as well. This is based on literature reports that have not been confirmed by examination of specimens. Possibly these reports refer to
|
||
<taxonomicName id="4C1D4D4FFFE9D944C9EC1A36FEBDFEB9" authorityName="Holmes" authorityYear="1905" box="[179,329,295,320]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="92" pageNumber="93" phylum="Arthropoda" rank="species" species="marmorata">
|
||
<emphasis id="B969EADEFFE9D944C9EC1A36FEBDFEB9" box="[179,329,295,320]" italics="true" pageId="92" pageNumber="93">J. marmorata</emphasis>
|
||
</taxonomicName>
|
||
or
|
||
<taxonomicName id="4C1D4D4FFFE9D944C8321A36FE2AFEB9" authorityName="Conlan" authorityYear="1990" box="[365,478,295,320]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="92" pageNumber="93" phylum="Arthropoda" rank="species" species="morinoi">
|
||
<emphasis id="B969EADEFFE9D944C8321A36FE2AFEB9" box="[365,478,295,320]" italics="true" pageId="92" pageNumber="93">J. morinoi</emphasis>
|
||
</taxonomicName>
|
||
which are confirmed there (
|
||
<figureCitation id="13262A49FFE9D944CA4A1A36FCAEFEB8" box="[789,858,295,321]" captionStart="FIGURE 1" captionStartId="11.[151,250,1925,1949]" captionTargetBox="[177,1410,419,1901]" captionTargetId="figure-145@11.[177,1410,417,1901]" captionTargetPageId="11" captionText="FIGURE 1. Progressive discovery of Jassa marmorata from 1850 to 1949. Red dot: identification confirmed by specimen examination; green triangle: literature record (Supplementary Table S1) with identification not confirmed but judged likely to be this species; blue x: suspected or known to be on the hull or interior of a boat or ship." figureDoi="http://doi.org/10.5281/zenodo.4580626" httpUri="https://zenodo.org/record/4580626/files/figure.png" pageId="92" pageNumber="93">Figs 1</figureCitation>
|
||
,
|
||
<figureCitation id="13262A49FFE9D944CA371A36FC8CFEB8" box="[872,888,295,321]" captionStart="FIGURE 2" captionStartId="12.[151,250,1775,1799]" captionTargetBox="[151,1436,189,1751]" captionTargetId="figure-22@12.[151,1436,181,1751]" captionTargetPageId="12" captionText="FIGURE 2. Progressive discovery of Jassa marmorata from 1850 to 2020. Red dot: identification confirmed by specimen examination; green triangle: literature record (Supplementary Table S1) with identification not confirmed but judged likely to be this species; blue x: suspected or known to be on the hull or interior of a boat or ship." figureDoi="http://doi.org/10.5281/zenodo.4580628" httpUri="https://zenodo.org/record/4580628/files/figure.png" pageId="92" pageNumber="93">2</figureCitation>
|
||
,
|
||
<figureCitation id="13262A49FFE9D944CADC1A37FC65FEB8" box="[899,913,294,321]" captionStart="FIGURE 5" captionStartId="15.[151,250,1522,1546]" captionTargetBox="[151,1436,189,1497]" captionTargetId="figure-18@15.[151,1436,181,1497]" captionTargetPageId="15" captionText="FIGURE 5. Progressive discovery of Jassa morinoi from 1850 to 1949. Red dot: identification confirmed by specimen examination; green triangle: literature record (Supplementary Table S1) with identification not confirmed but judged likely to be this species; blue x: suspected or known to be on the hull or interior of a boat or ship." figureDoi="http://doi.org/10.5281/zenodo.4580636" httpUri="https://zenodo.org/record/4580636/files/figure.png" pageId="92" pageNumber="93">5</figureCitation>
|
||
and
|
||
<figureCitation id="13262A49FFE9D944CA991A36FC22FEBB" box="[966,982,295,322]" captionStart="FIGURE 6" captionStartId="16.[151,250,1696,1720]" captionTargetBox="[151,1436,313,1622]" captionTargetId="figure-91@16.[151,1436,307,1622]" captionTargetPageId="16" captionText="FIGURE 6. Progressive discovery of Jassa morinoi from 1850 to 2020. Red dot: identification confirmed by specimen examination; green triangle: literature record (Supplementary Table S1) with identification not confirmed but judged likely to be this species; blue x: suspected or known to be on the hull or interior of a boat or ship." figureDoi="http://doi.org/10.5281/zenodo.4580638" httpUri="https://zenodo.org/record/4580638/files/figure.png" pageId="92" pageNumber="93">6</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |