281 lines
33 KiB
XML
281 lines
33 KiB
XML
<document id="75976F6DF77D1ACCFEBB2876B4BA6E70" ID-CLB-Dataset="8297" ID-DOI="10.11646/zootaxa.4921.1.1" ID-GBIF-Dataset="6f7c2191-a210-4685-98f6-7a90241131df" ID-ISSN="1175-5326" ID-Zenodo-Dep="4496015" ID-ZooBank="2A77E821-52F4-450C-8964-7928D36C0906" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1612329124618" checkinUser="plazi" docAuthor="Conlan, Kathleen E." docDate="2021" docId="03DFE565EA53D45BFF133385D102FF23" docLanguage="en" docName="zootaxa.4921.1.1.pdf" docOrigin="Zootaxa 4921 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Pleojassa orientalis Conlan 2021, n. sp." docType="treatment" docVersion="9" lastPageNumber="49" masterDocId="FFE69D1DEA7CD46AFF843708D564FFDA" masterDocTitle="New genera for species of Jassa Leach (Crustacea: Amphipoda) and their relationship to a revised Ischyrocerini" masterLastPageNumber="72" masterPageNumber="1" pageNumber="48" updateTime="1698926504305" updateUser="ExternalLinkService">
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<mods:titleInfo id="0210727CE77EA1F219BF577E275CEEDD">
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<mods:title id="F6F2EF90CFC13424E3BC35EB8B7237DA">New genera for species of Jassa Leach (Crustacea: Amphipoda) and their relationship to a revised Ischyrocerini</mods:title>
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<mods:name id="8F40321BBB02CFEAA23FFA5F95B935E2" type="personal">
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<mods:roleTerm id="F659BA20AB09BD53C63FE65703E2853C">Author</mods:roleTerm>
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<mods:namePart id="0809B32D6014F420777477C508D5EC45">Conlan, Kathleen E.</mods:namePart>
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<mods:title id="1B0B59301835D6C3E9184D475ABA6578">Zootaxa</mods:title>
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<mods:part id="721B86AC704AE8D26D8BB55FC96DA2A5">
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<mods:date id="A7FA8BB0F53BD582806D1E77775B3198">2021</mods:date>
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<mods:number id="B4E48489504FCCD43C0798FD21F4F145">2021-02-03</mods:number>
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<mods:number id="D7B66FC44A9D349192C1AEDB2D99EA51">4921</mods:number>
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<mods:identifier id="C1FCAD3E36F76C2E2E47C26C82187F55" type="DOI">10.11646/zootaxa.4921.1.1</mods:identifier>
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<mods:identifier id="C70C235CE88CDF54E88679611925BF7C" type="ISSN">1175-5326</mods:identifier>
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</mods:mods>
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<treatment id="03DFE565EA53D45BFF133385D102FF23" ID-DOI="http://doi.org/10.5281/zenodo.4534327" ID-GBIF-Taxon="177318881" ID-Zenodo-Dep="4534327" LSID="urn:lsid:plazi:treatment:03DFE565EA53D45BFF133385D102FF23" httpUri="http://treatment.plazi.org/id/03DFE565EA53D45BFF133385D102FF23" lastPageId="49" lastPageNumber="49" pageId="47" pageNumber="48">
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<subSubSection id="C36C07F8EA53D445FF133385D4A8FB7D" box="[151,460,1165,1192]" pageId="47" pageNumber="48" type="nomenclature">
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<paragraph id="8BC95473EA53D445FF133385D4A8FB7D" blockId="47.[151,460,1165,1227]" box="[151,460,1165,1192]" pageId="47" pageNumber="48">
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<heading id="D081E31FEA53D445FF133385D4A8FB7D" bold="true" box="[151,460,1165,1192]" fontSize="11" level="2" pageId="47" pageNumber="48" reason="4">
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<emphasis id="B9028861EA53D445FF133385D4A8FB7D" bold="true" box="[151,460,1165,1192]" pageId="47" pageNumber="48">
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<taxonomicName id="4C762FF0EA53D445FF133385D4E7FB72" ID-CoL="8589P" authority="Conlan, 2021" authorityName="Conlan" authorityYear="2021" box="[151,387,1165,1192]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="47" pageNumber="48" phylum="Arthropoda" rank="species" species="orientalis" status="sp. nov.">
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<emphasis id="B9028861EA53D445FF133385D4E7FB72" bold="true" box="[151,387,1165,1192]" italics="true" pageId="47" pageNumber="48">Pleojassa orientalis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A231351AEA53D445FE0E3385D4A8FB7D" box="[394,460,1165,1191]" pageId="47" pageNumber="48" rank="species">n. sp.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C36C07F8EA53D45AFF1333B9D6E2F917" lastPageId="48" lastPageNumber="49" pageId="47" pageNumber="48" type="description">
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<paragraph id="8BC95473EA53D445FF1333B9D59DFB11" blockId="47.[151,460,1165,1227]" box="[151,249,1201,1227]" pageId="47" pageNumber="48">
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(
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<figureCitation id="134D48F6EA53D445FF2433B9D595FB11" box="[160,241,1201,1227]" captionStart="FIGURE 28" captionStartId="48.[151,249,996,1020]" captionTargetBox="[151,1426,187,972]" captionTargetId="figure-27@48.[151,1436,181,972]" captionTargetPageId="48" captionText="FIGURE 28. Pleojassa orientalis n. sp. Holotype, adult female, 9.8 mm and male, paratype, ~6.5 mm (full length estimated from comparison with the female as body posterior to segment 4 missing). Southeast corner of Gorilla Head Rock, Macquarie Island, Australia (54°29ʹS, 158°58ʹE), 23 December 1977, J. K. Lowry, coll., AM P.34955, station no. MA-147. Setae are omitted from the male gnathopod 2 profile. All views lateral. Scale 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.4496079" httpUri="https://zenodo.org/record/4496079/files/figure.png" pageId="47" pageNumber="48">Fig. 28</figureCitation>
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)
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</paragraph>
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<paragraph id="8BC95473EA53D445FF1333F1D677FACE" blockId="47.[151,1437,1273,1989]" box="[151,787,1273,1300]" pageId="47" pageNumber="48">
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<emphasis id="B9028861EA53D445FF1333F1D487FAC9" bold="true" box="[151,483,1273,1300]" pageId="47" pageNumber="48">Description of adult female.</emphasis>
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<typeStatus id="54CDEAD1EA53D445FE6D33F1D732FAC9" box="[489,598,1273,1299]" pageId="47" pageNumber="48" type="holotype">Holotype</typeStatus>
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: Length
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<quantity id="4C8EF996EA53D445FD3333F2D669FACE" box="[695,781,1274,1300]" metricMagnitude="-3" metricUnit="m" metricValue="9.8" pageId="47" pageNumber="48" unit="mm" value="9.8">9.8 mm</quantity>
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.
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</paragraph>
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<paragraph id="8BC95473EA53D445FF433216D1F1FA86" blockId="47.[151,1437,1273,1989]" pageId="47" pageNumber="48">
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<emphasis id="B9028861EA53D445FF433216D45DFAE2" box="[199,313,1310,1336]" italics="true" pageId="47" pageNumber="48">Antenna 2</emphasis>
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: overlapped by antenna 1 to the end of article 5; article 5, posterior margin bearing long simple setae only, without plumose setae; flagellum 3 articles, article 1 89% of the full flagellum length.
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</paragraph>
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<paragraph id="8BC95473EA53D445FF43326ED046FA5A" blockId="47.[151,1437,1273,1989]" box="[199,1314,1382,1409]" pageId="47" pageNumber="48">
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<emphasis id="B9028861EA53D445FF43326ED456FA5A" box="[199,306,1382,1408]" italics="true" pageId="47" pageNumber="48">Mandible</emphasis>
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: palp articles 2 and 3 without a dorsal fringe of setae; raker spines, number not measured.
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</paragraph>
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<paragraph id="8BC95473EA53D445FF433283D771F9C8" blockId="47.[151,1437,1273,1989]" pageId="47" pageNumber="48">
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<emphasis id="B9028861EA53D445FF433283D43FFA7F" box="[199,347,1419,1445]" italics="true" pageId="47" pageNumber="48">Gnathopod 1</emphasis>
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: coxal margins, anterior 140% of dorsal length; ventral margin shallowly convex; basis, anterior margin with a few short setae distally, posterior margin not setose; carpus, length 75% of propodus length, posterior lobe 59% of anterior margin length, without an anterodistal setal cluster; propodus, palm convex, with two defining spines slightly proximal of centre.
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</paragraph>
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<paragraph id="8BC95473EA53D445FF433114D123F979" blockId="47.[151,1437,1273,1989]" pageId="47" pageNumber="48">
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<emphasis id="B9028861EA53D445FF433114D43EF9EC" box="[199,346,1564,1590]" italics="true" pageId="47" pageNumber="48">Gnathopod 2</emphasis>
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: coxal margins, anterior 44% and posterior 73% of ventral length; ventral margin shallowly concave; carpus less than 1/4 the length of propodus; propodus, hinge tooth large and conical, not anteriorly bifid, palmar setae plumose, distributed throughout the palm, but not so dense as to obscure the palm’s shape, palmar angle acute, with a single, minute spine at its corner; dactyl, inner margin slightly sinuous.
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</paragraph>
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<paragraph id="8BC95473EA53D445FF4331A5D6B7F8D5" blockId="47.[151,1437,1273,1989]" pageId="47" pageNumber="48">
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<emphasis id="B9028861EA53D445FF4331A5D42DF91D" box="[199,329,1709,1735]" italics="true" pageId="47" pageNumber="48">Pereopod 3</emphasis>
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: coxa, greatest depth posterior of centre; basis, anterior margin shallowly convex; merus, anterior marginal setae in well separated clusters, central setae, length 1/2 or less the article width, article width 72% of length; carpus 42% overlapped by merus; propodus, width 48% of length.
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</paragraph>
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<paragraph id="8BC95473EA53D445FF433011D754F882" blockId="47.[151,1437,1273,1989]" pageId="47" pageNumber="48">
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<emphasis id="B9028861EA53D445FF433011D40AF8EE" box="[199,366,1817,1844]" italics="true" pageId="47" pageNumber="48">Pereopods 5–7</emphasis>
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: setae and spines moderately abundant, basis posterodistally produced, anterior margin spinose; merus, posterior margin not spinose.
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</paragraph>
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<paragraph id="8BC95473EA53D445FF43306AD7F7F87A" blockId="47.[151,1437,1273,1989]" pageId="47" pageNumber="48">
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<emphasis id="B9028861EA53D445FF43306AD457F8A6" box="[199,307,1890,1916]" italics="true" pageId="47" pageNumber="48">Uropod 1</emphasis>
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: peduncle, posteroventral spinous process underlying 52% of the inner ramus, inner and outer rami with 10 and 6 mid-dorsal spines respectively.
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</paragraph>
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<paragraph id="8BC95473EA53D445FF4330A3D1C5F81F" blockId="47.[151,1437,1273,1989]" box="[199,1185,1963,1989]" pageId="47" pageNumber="48">
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<emphasis id="B9028861EA53D445FF4330A3D456F81F" box="[199,306,1963,1989]" italics="true" pageId="47" pageNumber="48">Uropod 2</emphasis>
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: peduncle, posteroventral spinous process underlying 42% of the inner ramus.
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</paragraph>
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<caption id="DF0904FBEA4CD45AFF1334ECD666FBB2" ID-DOI="http://doi.org/10.5281/zenodo.4496079" ID-Zenodo-Dep="4496079" httpUri="https://zenodo.org/record/4496079/files/figure.png" pageId="48" pageNumber="49" startId="48.[151,249,996,1020]" targetBox="[151,1426,187,972]" targetPageId="48">
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<paragraph id="8BC95473EA4CD45AFF1334ECD666FBB2" blockId="48.[151,1437,996,1128]" pageId="48" pageNumber="49">
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<emphasis id="B9028861EA4CD45AFF1334ECD47AFC26" bold="true" box="[151,286,996,1020]" pageId="48" pageNumber="49">FIGURE 28.</emphasis>
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<taxonomicName id="4C762FF0EA4CD45AFEA734ECD48CFC26" authority="Conlan, 2021" authorityName="Conlan" authorityYear="2021" box="[291,488,996,1020]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="48" pageNumber="49" phylum="Arthropoda" rank="species" species="orientalis" status="sp. nov.">
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<emphasis id="B9028861EA4CD45AFEA734ECD48CFC26" box="[291,488,996,1020]" italics="true" pageId="48" pageNumber="49">Pleojassa orientalis</emphasis>
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</taxonomicName>
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<emphasis id="B9028861EA4CD45AFE6A34ECD742FC26" bold="true" box="[494,550,996,1020]" pageId="48" pageNumber="49">
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<taxonomicNameLabel id="A231351AEA4CD45AFE6A34ECD742FC26" box="[494,550,996,1020]" pageId="48" pageNumber="49" rank="species">n. sp.</taxonomicNameLabel>
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</emphasis>
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Holotype, adult female, 9.8 mm and male, paratype, ~6.5 mm (full length estimated from comparison with the female as body posterior to segment 4 missing). Southeast corner of Gorilla Head Rock, Macquarie Island, Australia (54°29ʹS, 158°58ʹE), 23 December 1977, J. K. Lowry, coll., AM P.34955, station no. MA-147. Setae are omitted from the male gnathopod 2 profile. All views lateral. Scale 0.1 mm.
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</paragraph>
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</caption>
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<paragraph id="8BC95473EA4CD45AFF43339ED799FB6A" blockId="48.[151,1437,1174,2029]" box="[199,765,1174,1201]" pageId="48" pageNumber="49">
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<emphasis id="B9028861EA4CD45AFF43339ED456FB6B" box="[199,306,1174,1201]" italics="true" pageId="48" pageNumber="49">Uropod 3</emphasis>
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: inner ramus with 2 spines mid-dorsally.
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</paragraph>
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<paragraph id="8BC95473EA4CD45AFF4333B2D6D1FB22" blockId="48.[151,1437,1174,2029]" pageId="48" pageNumber="49">
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<emphasis id="B9028861EA4CD45AFF4333B2D422FB0E" bold="true" box="[199,326,1210,1236]" pageId="48" pageNumber="49">Condition.</emphasis>
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Without left pereopod 5 and right pereopod 6. Flagellum of right antenna 1 lacking terminal article(s). Right appendages, left pereopod 6, and telson slide mounted.
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</paragraph>
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<paragraph id="8BC95473EA4CD45AFF43320AD73AFA9A" blockId="48.[151,1437,1174,2029]" pageId="48" pageNumber="49">
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<emphasis id="B9028861EA4CD45AFF43320AD4DEFAC7" bold="true" box="[199,442,1282,1309]" pageId="48" pageNumber="49">Description of male.</emphasis>
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<typeStatus id="54CDEAD1EA4CD45AFE46320AD74CFAC6" box="[450,552,1282,1308]" pageId="48" pageNumber="49" type="allotype">Allotype</typeStatus>
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: Length approximately
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<quantity id="4C8EF996EA4CD45AFCB1320AD6EBFAC7" box="[821,911,1282,1309]" metricMagnitude="-3" metricUnit="m" metricValue="6.5" pageId="48" pageNumber="49" unit="mm" value="6.5">6.5 mm</quantity>
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; head to end of segment 6,
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<quantity id="4C8EF996EA4CD45AFB4D320BD045FAC7" box="[1225,1313,1283,1309]" metricMagnitude="-3" metricUnit="m" metricValue="3.9" pageId="48" pageNumber="49" unit="mm" value="3.9">3.9 mm</quantity>
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. Character states as in the female except as follows.
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</paragraph>
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<paragraph id="8BC95473EA4CD45AFF433243D0F6FABF" blockId="48.[151,1437,1174,2029]" box="[199,1426,1354,1381]" pageId="48" pageNumber="49">
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<emphasis id="B9028861EA4CD45AFF433243D45EFABF" box="[199,314,1355,1381]" italics="true" pageId="48" pageNumber="49">Antenna 2</emphasis>
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: article 5, filter setae half or less the length of those in the female, interspersed with plumose setae.
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</paragraph>
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<paragraph id="8BC95473EA4CD45AFF433266D1B3FA52" blockId="48.[151,1437,1174,2029]" box="[199,1239,1390,1417]" pageId="48" pageNumber="49">
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<emphasis id="B9028861EA4CD45AFF433266D43EFA53" box="[199,346,1390,1417]" italics="true" pageId="48" pageNumber="49">Gnathopod 2</emphasis>
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: as in the female, but palm less densely setose and dactyl inner margin straight.
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</paragraph>
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<paragraph id="8BC95473EA4CD45AFF43329AD60EFA0B" blockId="48.[151,1437,1174,2029]" pageId="48" pageNumber="49">
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<emphasis id="B9028861EA4CD45AFF43329AD422FA76" bold="true" box="[199,326,1426,1452]" pageId="48" pageNumber="49">Condition.</emphasis>
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Without body segments posterior of segment 6, antennae 1 flagella, left antenna 2 distal flagellum, right antenna 2, left pereopods 5–7, and right pereopods 5 and 7.
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</paragraph>
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<paragraph id="8BC95473EA4CD45AFF4332D2D6E2F917" blockId="48.[151,1437,1174,2029]" pageId="48" pageNumber="49">
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<emphasis id="B9028861EA4CD45AFF4332D2D45BFA2E" bold="true" box="[199,319,1498,1524]" pageId="48" pageNumber="49">Variation.</emphasis>
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Maximum body length: male unknown, female
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<quantity id="4C8EF996EA4CD45AFCD332D3D6C8FA2F" box="[855,940,1499,1525]" metricMagnitude="-3" metricUnit="m" metricValue="9.8" pageId="48" pageNumber="49" unit="mm" value="9.8">9.8 mm</quantity>
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. The male is 2/3 the body length of the adult female
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<typeStatus id="54CDEAD1EA4CD45AFF6E32F6D428F9C2" box="[234,332,1534,1560]" pageId="48" pageNumber="49" type="holotype">holotype</typeStatus>
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(judging by relative difference in head length). This suggests that this male may not yet be mature, so it cannot be assumed that larger males lack a thumb as illustrated for the smaller male. Due to lack of material, sexual variation and growth is not well known and only can be inferred from congeners. Judging by its close resemblance to
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<taxonomicName id="4C762FF0EA4CD45AFEB03163D4BBF95E" baseAuthorityName="Schellenberg" baseAuthorityYear="1931" box="[308,479,1642,1668]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="48" pageNumber="49" phylum="Arthropoda" rank="species" species="multidentata">
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<emphasis id="B9028861EA4CD45AFEB03163D4BBF95E" box="[308,479,1642,1668]" italics="true" pageId="48" pageNumber="49">P. multidentata</emphasis>
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</taxonomicName>
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, in which the male is known to grow a thumb, this development is probably similar in
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<taxonomicName id="4C762FF0EA4CD45AFF313187D459F972" authorityName="Conlan" authorityYear="2021" box="[181,317,1678,1704]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="48" pageNumber="49" phylum="Arthropoda" rank="species" species="orientalis">
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<emphasis id="B9028861EA4CD45AFF313187D459F972" box="[181,317,1678,1704]" italics="true" pageId="48" pageNumber="49">P. orientalis</emphasis>
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</taxonomicName>
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. The small male bears plumose setae on the antenna 2 while the adult female lacks plumose setae. However, as in
|
||
<taxonomicName id="4C762FF0EA4CD45AFEC231BBD4DEF916" authorityName="Conlan" authorityYear="2021" baseAuthorityName="Chevreux" baseAuthorityYear="1906" box="[326,442,1714,1740]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="48" pageNumber="49" phylum="Arthropoda" rank="species" species="wandeli">
|
||
<emphasis id="B9028861EA4CD45AFEC231BBD4DEF916" box="[326,442,1714,1740]" italics="true" pageId="48" pageNumber="49">P. wandeli</emphasis>
|
||
</taxonomicName>
|
||
, larger females may have plumose setae.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C36C07F8EA4CD45AFF4331DFD4AEF887" pageId="48" pageNumber="49" type="materials_examined">
|
||
<paragraph id="8BC95473EA4CD45AFF4331DFD4AEF887" blockId="48.[151,1437,1174,2029]" pageId="48" pageNumber="49">
|
||
<emphasis id="B9028861EA4CD45AFF4331DFD490F92A" bold="true" box="[199,500,1750,1777]" pageId="48" pageNumber="49">Type material examined.</emphasis>
|
||
<materialsCitation id="3B1E5E2EEA4CD45AFE7931DED44BF8E3" ID-GBIF-Occurrence="3033948319" collectingDate="1977-12-23" collectionCode="AM" country="Australia" elevation="8" latitude="-54.483334" location="Gorilla Head Rock" longLatPrecision="1070" longitude="158.96666" pageId="48" pageNumber="49" specimenCount="9" specimenCount-female="1" typeStatus="holotype">
|
||
<typeStatus id="54CDEAD1EA4CD45AFE7931DED70CF92A" box="[509,616,1750,1776]" pageId="48" pageNumber="49" type="holotype">Holotype</typeStatus>
|
||
,
|
||
<specimenCount id="9D709FFAEA4CD45AFDF231DFD7EFF92B" box="[630,651,1751,1777]" pageId="48" pageNumber="49" type="female">♀</specimenCount>
|
||
, ovigerous (
|
||
<collectionCode id="ED67CCB6EA4CD45AFC9F31DFD629F92B" box="[795,845,1751,1777]" country="Australia" name="Australian Museum" pageId="48" pageNumber="49" type="Museum">AM</collectionCode>
|
||
), type no. P.34955, station no. MA-147,
|
||
<collectingCountry id="F36114E3EA4CD45AFAA031DED584F8CE" name="Australia" pageId="48" pageNumber="49">Macquarie Island</collectingCountry>
|
||
:
|
||
<location id="8EA902A8EA4CD45AFF6D31F2D4D9F8CE" LSID="urn:lsid:plazi:treatment:03DFE565EA53D45BFF133385D102FF23:8EA902A8EA4CD45AFF6D31F2D4D9F8CE" box="[233,445,1786,1812]" country="Australia" latitude="-54.483334" longLatPrecision="1070" longitude="158.96666" name="Gorilla Head Rock" pageId="48" pageNumber="49">Gorilla Head Rock</location>
|
||
, southeast corner (
|
||
<geoCoordinate id="EE4232B4EA4CD45AFD0E31F2D787F8CD" box="[650,739,1786,1815]" degrees="54" direction="south" minutes="29" orientation="latitude" pageId="48" pageNumber="49" precision="925" value="-54.483334">
|
||
54
|
||
<superScript id="7C03F93BEA4CD45AFD2C31F3D7D4F8D3" attach="right" box="[680,688,1787,1801]" fontSize="6" pageId="48" pageNumber="49">o</superScript>
|
||
29ʹS
|
||
</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="EE4232B4EA4CD45AFD6A31F2D633F8CD" box="[750,855,1786,1815]" degrees="158" direction="east" minutes="58" orientation="longitude" pageId="48" pageNumber="49" precision="925" value="158.96666">
|
||
158
|
||
<superScript id="7C03F93BEA4CD45AFC9C31F3D644F8D3" attach="none" box="[792,800,1787,1801]" fontSize="6" pageId="48" pageNumber="49">o</superScript>
|
||
58ʹE
|
||
</geoCoordinate>
|
||
),
|
||
<date id="FFC872B3EA4CD45AFCEE31F3D15BF8CF" box="[874,1087,1786,1813]" pageId="48" pageNumber="49" value="1977-12-23">
|
||
<collectingDate id="EF8C8B5BEA4CD45AFCEE31F3D15BF8CF" box="[874,1087,1786,1813]" pageId="48" pageNumber="49" value="1977-12-23">23 December 1977</collectingDate>
|
||
</date>
|
||
, in a small
|
||
<taxonomicName id="4C762FF0EA4CD45AFB3D31F2D0F8F8CE" box="[1209,1436,1786,1812]" genus="Durvillea" pageId="48" pageNumber="49" rank="species" species="antarctica">
|
||
<emphasis id="B9028861EA4CD45AFB3D31F2D0F8F8CE" box="[1209,1436,1786,1812]" italics="true" pageId="48" pageNumber="49">Durvillea antarctica</emphasis>
|
||
</taxonomicName>
|
||
holdfast,
|
||
<specimenCount id="9D709FFAEA4CD45AFF7A3017D44BF8E3" box="[254,303,1823,1849]" pageId="48" pageNumber="49" type="generic">
|
||
<quantity id="4C8EF996EA4CD45AFF7A3017D44CF8E3" box="[254,296,1823,1849]" metricMagnitude="0" metricUnit="m" metricValue="8.0" pageId="48" pageNumber="49" unit="m" value="8.0">
|
||
<elevation id="005BB340EA4CD45AFF7A3017D44CF8E3" box="[254,296,1823,1849]" metricMagnitude="0" metricUnit="m" metricValue="8.0" pageId="48" pageNumber="49" unit="m" value="8.0">8 m</elevation>
|
||
</quantity>
|
||
.
|
||
</specimenCount>
|
||
</materialsCitation>
|
||
<materialsCitation id="3B1E5E2EEA4CD45AFEB03016D14DF8E2" ID-GBIF-Occurrence="3033948331" box="[308,1065,1822,1849]" collectingDate="1977-12-23" collectionCode="AM" country="Australia" elevation="8" latitude="-54.483334" location="Gorilla Head Rock" longLatPrecision="1070" longitude="158.96666" pageId="48" pageNumber="49" specimenCount="1" specimenCount-male="1" typeStatus="allotype">
|
||
<typeStatus id="54CDEAD1EA4CD45AFEB03016D4FDF8E2" box="[308,409,1822,1848]" pageId="48" pageNumber="49" type="allotype">Allotype</typeStatus>
|
||
, small (juvenile?)
|
||
<specimenCount id="9D709FFAEA4CD45AFDE03017D71DF8E3" box="[612,633,1823,1849]" pageId="48" pageNumber="49" type="male">♂</specimenCount>
|
||
(
|
||
<collectionCode id="ED67CCB6EA4CD45AFD033017D7DDF8E3" box="[647,697,1823,1849]" country="Australia" name="Australian Museum" pageId="48" pageNumber="49" type="Museum">AM</collectionCode>
|
||
), type no. P.37924, same location
|
||
</materialsCitation>
|
||
.
|
||
<materialsCitation id="3B1E5E2EEA4CD45AFBB23017D4A7F886" ID-GBIF-Occurrence="3033948314" collectingDate="1977-12-23" collectionCode="AM" country="Australia" elevation="8" latitude="-54.483334" location="Gorilla Head Rock" longLatPrecision="1070" longitude="158.96666" pageId="48" pageNumber="49" specimenCount="1" specimenCount-female="1" typeStatus="paratype">
|
||
<typeStatus id="54CDEAD1EA4CD45AFBB23017D1FFF8E3" box="[1078,1179,1823,1849]" pageId="48" pageNumber="49" type="paratype">Paratype</typeStatus>
|
||
, juvenile
|
||
<specimenCount id="9D709FFAEA4CD45AFA813017D07EF8E3" box="[1285,1306,1823,1849]" pageId="48" pageNumber="49" type="female">♀</specimenCount>
|
||
(
|
||
<collectionCode id="ED67CCB6EA4CD45AFAAC3017D03EF8E3" box="[1320,1370,1823,1849]" country="Australia" name="Australian Museum" pageId="48" pageNumber="49" type="Museum">AM</collectionCode>
|
||
), type no. P.37925, same location
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C36C07F8EA4CD45AFF43306FD1C3F85B" box="[199,1191,1894,1921]" pageId="48" pageNumber="49" type="etymology">
|
||
<paragraph id="8BC95473EA4CD45AFF43306FD1C3F85B" blockId="48.[151,1437,1174,2029]" box="[199,1191,1894,1921]" pageId="48" pageNumber="49">
|
||
<emphasis id="B9028861EA4CD45AFF43306FD42AF85B" bold="true" box="[199,334,1895,1921]" pageId="48" pageNumber="49">Etymology.</emphasis>
|
||
In reference to the eastern location of the species relative to
|
||
<taxonomicName id="4C762FF0EA4CD45AFC73306FD1C4F85A" baseAuthorityName="Schellenberg" baseAuthorityYear="1931" box="[1015,1184,1894,1920]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="48" pageNumber="49" phylum="Arthropoda" rank="species" species="multidentata">
|
||
<emphasis id="B9028861EA4CD45AFC73306FD1C4F85A" box="[1015,1184,1894,1920]" italics="true" pageId="48" pageNumber="49">P. multidentata</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C36C07F8EA4CD45BFF133083D102FF23" lastPageId="49" lastPageNumber="50" pageId="48" pageNumber="49" type="discussion">
|
||
<paragraph id="8BC95473EA4CD45BFF133083D102FF23" blockId="48.[151,1437,1174,2029]" lastBlockId="49.[151,1437,151,249]" lastPageId="49" lastPageNumber="50" pageId="48" pageNumber="49">
|
||
<emphasis id="B9028861EA4CD45AFF133083D46FF87F" bold="true" box="[151,267,1931,1957]" pageId="48" pageNumber="49">Remarks.</emphasis>
|
||
<taxonomicName id="4C762FF0EA4CD45AFE963082D494F87E" authorityName="Conlan" authorityYear="2021" box="[274,496,1930,1956]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="48" pageNumber="49" phylum="Arthropoda" rank="species" species="orientalis">
|
||
<emphasis id="B9028861EA4CD45AFE963082D494F87E" box="[274,496,1930,1956]" italics="true" pageId="48" pageNumber="49">Pleojassa orientalis</emphasis>
|
||
</taxonomicName>
|
||
differs from
|
||
<taxonomicName id="4C762FF0EA4CD45AFD073083D648F87E" baseAuthorityName="Schellenberg" baseAuthorityYear="1931" box="[643,812,1930,1956]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="48" pageNumber="49" phylum="Arthropoda" rank="species" species="multidentata">
|
||
<emphasis id="B9028861EA4CD45AFD073083D648F87E" box="[643,812,1930,1956]" italics="true" pageId="48" pageNumber="49">P. multidentata</emphasis>
|
||
</taxonomicName>
|
||
in the shape of the gnathopod 2 palm (both sexes) (
|
||
<figureCitation id="134D48F6EA4CD45AFAEE3082D5D7F813" captionStart="FIGURE 27" captionStartId="46.[151,249,1186,1210]" captionTargetBox="[167,1413,187,1157]" captionTargetId="figure-27@46.[164,1423,181,1162]" captionTargetPageId="46" captionText="FIGURE 27. Pleojassa multidentata (Schellenberg, 1931). Male, 8.0 mm and male 1, 7.4 mm. South Georgia, Swedish Antarctic Expedition (1901–1903), collection date and collector unknown, MfN 22.962. Male 2, paralectotype, 3.7 mm and adult female, lectotype, 7.7 mm. South Georgia, 1883, Deutsche Polar Commission, K. von den Steinen, coll., ZMH K-8028. Setae are omitted from the gnathopod 2 profiles of the male 1 and male 2. All views lateral. Scale 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.4496077" httpUri="https://zenodo.org/record/4496077/files/figure.png" pageId="48" pageNumber="49">Figs 27</figureCitation>
|
||
and
|
||
<figureCitation id="134D48F6EA4CD45AFF6E30A7D46DF813" box="[234,265,1967,1993]" captionStart="FIGURE 28" captionStartId="48.[151,249,996,1020]" captionTargetBox="[151,1426,187,972]" captionTargetId="figure-27@48.[151,1436,181,972]" captionTargetPageId="48" captionText="FIGURE 28. Pleojassa orientalis n. sp. Holotype, adult female, 9.8 mm and male, paratype, ~6.5 mm (full length estimated from comparison with the female as body posterior to segment 4 missing). Southeast corner of Gorilla Head Rock, Macquarie Island, Australia (54°29ʹS, 158°58ʹE), 23 December 1977, J. K. Lowry, coll., AM P.34955, station no. MA-147. Setae are omitted from the male gnathopod 2 profile. All views lateral. Scale 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.4496079" httpUri="https://zenodo.org/record/4496079/files/figure.png" pageId="48" pageNumber="49">28</figureCitation>
|
||
), and in lacking a cluster of short setae at the anterodistal margin of the carpus of gnathopod 1, which is present in
|
||
<taxonomicName id="4C762FF0EA4CD45AFE8A30DBD4DCF836" baseAuthorityName="Schellenberg" baseAuthorityYear="1931" box="[270,440,2002,2028]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="48" pageNumber="49" phylum="Arthropoda" rank="species" species="multidentata">
|
||
<emphasis id="B9028861EA4CD45AFE8A30DBD4DCF836" box="[270,440,2002,2028]" italics="true" pageId="48" pageNumber="49">P. multidentata</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<taxonomicName id="4C762FF0EA4CD45AFE4230DAD7C2F836" authorityName="Conlan" authorityYear="2021" box="[454,678,2002,2028]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="48" pageNumber="49" phylum="Arthropoda" rank="species" species="orientalis">
|
||
<emphasis id="B9028861EA4CD45AFE4230DAD7C2F836" box="[454,678,2002,2028]" italics="true" pageId="48" pageNumber="49">Pleojassa orientalis</emphasis>
|
||
</taxonomicName>
|
||
may prove to be a geographic variant of
|
||
<taxonomicName id="4C762FF0EA4CD45AFBFF30DBD042F836" baseAuthorityName="Schellenberg" baseAuthorityYear="1931" box="[1147,1318,2002,2028]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="48" pageNumber="49" phylum="Arthropoda" rank="species" species="multidentata">
|
||
<emphasis id="B9028861EA4CD45AFBFF30DBD042F836" box="[1147,1318,2002,2028]" italics="true" pageId="48" pageNumber="49">P. multidentata</emphasis>
|
||
</taxonomicName>
|
||
, given the wide longitudinal range that Southern Hemisphere species can have (
|
||
<figureCitation id="134D48F6EA4DD45BFC1E379FD685FF6B" box="[922,993,151,177]" captionStart="FIGURE 1" captionStartId="5.[151,250,1814,1838]" captionTargetBox="[151,1436,522,1788]" captionTargetId="figure-172@5.[151,1436,522,1788]" captionTargetPageId="5" captionText="FIGURE 1. Distribution records of Plumulojassa ocia, Ventojassa frequens and Hemijassa goniamera. 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." figureDoi="http://doi.org/10.5281/zenodo.4496017" httpUri="https://zenodo.org/record/4496017/files/figure.png" pageId="49" pageNumber="50">Figs 1</figureCitation>
|
||
and
|
||
<figureCitation id="134D48F6EA4DD45BFB92379FD143FF6B" box="[1046,1063,151,177]" captionStart="FIGURE 2" captionStartId="6.[151,250,1803,1827]" captionTargetBox="[151,1436,181,1779]" captionTargetId="figure-27@6.[151,1436,181,1779]" captionTargetPageId="6" captionText="FIGURE 2. Distribution records of Pleojassa moorei, P. lowryi, P. wandeli, P. multidentata, and P. orientalis. 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." figureDoi="http://doi.org/10.5281/zenodo.4496021" httpUri="https://zenodo.org/record/4496021/files/figure.png" pageId="49" pageNumber="50">2</figureCitation>
|
||
). They are given separate species status herein because these morphological differences are key characters for distinguishing species in
|
||
<taxonomicName id="4C762FF0EA4DD45BFB7A37B3D058FF0E" baseAuthorityName="Borowsky" baseAuthorityYear="1985" box="[1278,1340,187,212]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B9028861EA4DD45BFB7A37B3D058FF0E" box="[1278,1340,187,212]" italics="true" pageId="49" pageNumber="50">Jassa</emphasis>
|
||
</taxonomicName>
|
||
(Conlan
|
||
<emphasis id="B9028861EA4DD45BFF1337D7D5ABFF23" box="[151,207,223,249]" italics="true" pageId="49" pageNumber="50">et al.</emphasis>
|
||
, in press) and this may be the same case in
|
||
<taxonomicName id="4C762FF0EA4DD45BFD3D37D7D642FF23" authorityName="Conlan" authorityYear="2021" box="[697,806,223,249]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B9028861EA4DD45BFD3D37D7D642FF23" box="[697,806,223,249]" italics="true" pageId="49" pageNumber="50">Pleojassa</emphasis>
|
||
</taxonomicName>
|
||
and other relatives of
|
||
<taxonomicName id="4C762FF0EA4DD45BFBA537D7D13BFF22" baseAuthorityName="Borowsky" baseAuthorityYear="1985" box="[1057,1119,223,248]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B9028861EA4DD45BFBA537D7D13BFF22" box="[1057,1119,223,248]" italics="true" pageId="49" pageNumber="50">Jassa</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |