462 lines
75 KiB
XML
462 lines
75 KiB
XML
<document id="3A0B23CB8E4505359D2C47C1CDFAE90B" ID-DOI="10.11646/zootaxa.4758.3.3" ID-GBIF-Dataset="c95d4f1b-857a-4982-85aa-01651bf451bb" ID-ISSN="1175-5326" ID-Zenodo-Dep="3734675" ID-ZooBank="09096241-AF42-40FB-BF7E-A4A79FD9C41A" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1585658455778" checkinUser="plazi" docAuthor="Chim, C. K. & Tong, Samantha J. W." docDate="2020" docId="7530B13DFF863A75FF0821EC3D5D51AD" docLanguage="en" docName="zootaxa.4758.3.3.pdf" docOrigin="Zootaxa 4758 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Portaratrum birdi Chim & Tong 2020, n. sp." docType="treatment" docVersion="5" lastPageNumber="479" masterDocId="8909C945FF8A3A67FF9F252D3C00520A" masterDocTitle="Two new species of paratanaoid tanaidaceans of the family incertae sedis (Crustacea: Peracarida) from polymetallic nodule fields in the eastern Clarion-Clipperton Fracture Zone" masterLastPageNumber="485" masterPageNumber="461" pageNumber="473" updateTime="1698733797824" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="6CD5AF6624E417A6280031D1FB799BCD">Two new species of paratanaoid tanaidaceans of the family incertae sedis (Crustacea: Peracarida) from polymetallic nodule fields in the eastern Clarion-Clipperton Fracture Zone</mods:title>
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<mods:namePart id="97F4C2A0F78E1BC660EE631B47403827">Chim, C. K.</mods:namePart>
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<mods:namePart id="E004130E38280E0ABC923A970BBBA904">Tong, Samantha J. W.</mods:namePart>
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<mods:title id="52D3E9078FD5BE60F8DE40FD88951C8C">Zootaxa</mods:title>
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<mods:part id="0DDBCF9C73FD020BD83787EEBF8AF447">
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<mods:date id="955864D14C25F3AC95C51E3D1242FB25">2020</mods:date>
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<mods:number id="455C816B12E02EC5E500AF8AE168FCBF">2020-03-31</mods:number>
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<mods:number id="E64EC2AA929755C8B6A68A432FD376FC">4758</mods:number>
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<mods:classification id="D35FA3F69C6BD935756345D46B042451">journal article</mods:classification>
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<mods:identifier id="EE32335FE76EC87A633A26E701BCBCE2" type="DOI">10.11646/zootaxa.4758.3.3</mods:identifier>
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<treatment id="7530B13DFF863A75FF0821EC3D5D51AD" ID-DOI="http://doi.org/10.5281/zenodo.3812144" ID-GBIF-Taxon="163418149" ID-Zenodo-Dep="3812144" LSID="urn:lsid:plazi:treatment:7530B13DFF863A75FF0821EC3D5D51AD" httpUri="http://treatment.plazi.org/id/7530B13DFF863A75FF0821EC3D5D51AD" lastPageId="18" lastPageNumber="479" pageId="12" pageNumber="473">
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<subSubSection id="B58353A0FF863A6BFF0821EC3DB956D1" box="[151,441,1216,1243]" pageId="12" pageNumber="473" type="nomenclature">
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<paragraph id="FD26002BFF863A6BFF0821EC3DB956D1" blockId="12.[151,441,1216,1279]" box="[151,441,1216,1243]" pageId="12" pageNumber="473">
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<heading id="A66EB747FF863A6BFF0821EC3DB956D1" bold="true" box="[151,441,1216,1243]" fontSize="11" level="1" pageId="12" pageNumber="473" reason="1">
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<emphasis id="CFEDDC39FF863A6BFF0821EC3DB956D1" bold="true" box="[151,441,1216,1243]" pageId="12" pageNumber="473">
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<taxonomicName id="3A997BA8FF863A6BFF0821EC3D6F56D1" ID-CoL="86BGW" authority="Chim & Tong, 2020" authorityName="Chim & Tong" authorityYear="2020" box="[151,367,1216,1243]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="12" pageNumber="473" phylum="Arthropoda" rank="species" species="birdi" status="sp. nov.">
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<emphasis id="CFEDDC39FF863A6BFF0821EC3D6F56D1" bold="true" box="[151,367,1216,1243]" italics="true" pageId="12" pageNumber="473">Portaratrum birdi</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="D4DE6142FF863A6BFEE921EC3DB956D1" box="[374,441,1217,1243]" pageId="12" pageNumber="473" 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="B58353A0FF863A6BFF0821C93D7856F5" box="[151,376,1252,1279]" pageId="12" pageNumber="473" type="description">
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<paragraph id="FD26002BFF863A6BFF0821C93D7856F5" blockId="12.[151,441,1216,1279]" box="[151,376,1252,1279]" pageId="12" pageNumber="473">
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(
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<figureCitation id="65A21CAEFF863A6BFF0021C93D1156F4" box="[159,273,1252,1278]" captionStart-0="FIGURE 6" captionStart-1="FIGURE 7" captionStart-2="FIGURE 8" captionStart-3="FIGURE 9" captionStart-4="FIGURE 10" captionStart-5="FIGURE 11" captionStartId-0="14.[151,250,1934,1959]" captionStartId-1="15.[151,250,1958,1983]" captionStartId-2="16.[151,250,1958,1983]" captionStartId-3="17.[151,250,1762,1787]" captionStartId-4="18.[151,250,1972,1997]" captionStartId-5="19.[151,250,1934,1959]" captionTargetBox-0="[193,1392,189,1900]" captionTargetBox-1="[237,1353,189,1917]" captionTargetBox-2="[199,1394,187,1923]" captionTargetBox-3="[203,1390,784,1728]" captionTargetBox-4="[172,1415,957,1947]" captionTargetBox-5="[218,1369,181,1908]" captionTargetId-0="figure@14.[183,1404,181,1909]" captionTargetId-1="figure@15.[223,1365,181,1932]" captionTargetId-2="figure@16.[183,1404,181,1932]" captionTargetId-3="figure@17.[189,1398,777,1737]" captionTargetId-4="figure@18.[172,1415,957,1947]" captionTargetId-5="figure@19.[218,1369,181,1908]" captionTargetPageId-0="14" captionTargetPageId-1="15" captionTargetPageId-2="16" captionTargetPageId-3="17" captionTargetPageId-4="18" captionTargetPageId-5="19" captionText-0="FIGURE 6. Portaratrum birdi n. sp. OMS exploratory area, Clarion-Clipperton Fracture Zone. (A, C–F) Holotype female (ZRC 2020.0162) and (B) paratype female (ZRC 2020.0163): habitus, (A) dorsal and (B) lateral views; (C) pleonite-5, pleotelson and uropod, lateral; (D) ventral spur on pleonite-5; (E) antennule; (F) antenna. Scale bars: 1 mm for (A, B); 100 µm for (C–F)." captionText-1="FIGURE 7. Portaratrum birdi n. sp. Holotype female. Labrum, (A) dorsal and (A`) lateral views; (B) left and (B`) right mandibles; (C) labium; (D) maxillule; (E) maxilla; (F) maxillipeds. Scale bar: 100 µm." captionText-2="FIGURE 8. Portaratrum birdi n. sp. Holotype female. (A) Left cheliped, with setae and microtrichia on inner margin (denoted by asterisks *); (B–G) pereopods 1–6. Scale bars: 100 µm." captionText-3="FIGURE 9. Portaratrum birdi n. sp. Holotype female. (A) pleopod-1; (B) uropod. Scale bar: 100 µm." captionText-4="FIGURE 10. Portaratrum birdi n. sp. Paratype female (ZRC 2020.0164). Confocal laser scanning microscopy images of habitus ventral with insets highlighting article-1 of pleopod exopods and fusion line of antennae. Scale bars: 200 µm." captionText-5="FIGURE 11. Portaratrum birdi n. sp. Holotype female. (A) pleonite-5 ventral spur; (B) left mandible; (C) labium spiniform setae; (D) chela inner margin with two simple setae and four rows of microtrichia; (E) pereopod-1 propodus microtrichia; (F) pereopod-1 unguis tip; (G) pereopod-4 dactylus spinulation. Scale bars: 50 µm." figureDoi-0="http://doi.org/10.5281/zenodo.3734687" figureDoi-1="http://doi.org/10.5281/zenodo.3734689" figureDoi-2="http://doi.org/10.5281/zenodo.3734691" figureDoi-3="http://doi.org/10.5281/zenodo.3734693" figureDoi-4="http://doi.org/10.5281/zenodo.3734695" figureDoi-5="http://doi.org/10.5281/zenodo.3734697" httpUri-0="https://zenodo.org/record/3734687/files/figure.png" httpUri-1="https://zenodo.org/record/3734689/files/figure.png" httpUri-2="https://zenodo.org/record/3734691/files/figure.png" httpUri-3="https://zenodo.org/record/3734693/files/figure.png" httpUri-4="https://zenodo.org/record/3734695/files/figure.png" httpUri-5="https://zenodo.org/record/3734697/files/figure.png" pageId="12" pageNumber="473">Figs 6–11</figureCitation>
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,
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<tableCitation id="B01B3590FF863A6BFE8321C93D6F56F5" box="[284,367,1252,1279]" captionStart="TABLE 3" captionStartId="20.[151,239,467,493]" captionText="TABLE 3. Comparison of four species in the genus Portaratrum." pageId="12" pageNumber="473">Table 3</tableCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="B58353A0FF863A6BFF08200138DB57F1" pageId="12" pageNumber="473" type="materials_examined">
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<emphasis id="CFEDDC39FF863A6BFF0820013D82574D" bold="true" box="[151,386,1324,1351]" pageId="12" pageNumber="473">Material examined.</emphasis>
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<typeStatus id="2222BE89FF863A6BFE1520013DF5574C" box="[394,501,1324,1350]" pageId="12" pageNumber="473" type="holotype">Holotype</typeStatus>
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, non-ovigerous female, dissected and mounted on 32 slides (
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<specimenCode id="AD3FA850FF863A6BFB3620003966574D" box="[1193,1382,1324,1351]" collectionCode="ZRC" country="Singapore" httpUri="http://grbio.org/cool/16z4-1tbx" name="Zoological Reference Collection, National University of Singapore" pageId="12" pageNumber="473">ZRC 2020.0162</specimenCode>
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),
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, Clarion-Clipperton Fracture Zone (
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<collectionCode id="9B8898EEFF863A6BFDC8207C3EA35761" box="[599,675,1361,1387]" pageId="12" pageNumber="473">CCFZ</collectionCode>
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), OMS exploratory area, station S08 (
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,
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<geoCoordinate id="98AD66ECFF863A6BFB78207C39905761" box="[1255,1424,1361,1387]" degrees="117" direction="west" minutes="22.281" orientation="longitude" pageId="12" pageNumber="473" precision="1" value="-117.37135">117°22.281’W</geoCoordinate>
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),
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</quantity>
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, box corer (deployment # BC24), layer
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<quantity id="3A61ADCEFF863A6BFD2920593F0D5785" box="[694,781,1396,1423]" metricMagnitude="-2" metricUnit="m" metricValue="3.5" metricValueMax="5.0" metricValueMin="2.0" pageId="12" pageNumber="473" unit="cm" value="3.5" valueMax="5.0" valueMin="2.0">2–5 cm</quantity>
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, sieve mesh size
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<quantity id="3A61ADCEFF863A6BFC4D2058382C5785" box="[978,1068,1397,1423]" metricMagnitude="-1" metricUnit="m" metricValue="3.0" pageId="12" pageNumber="473" unit="mm" value="300.0">300 µm</quantity>
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, ABYSSLINE II (
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<specimenCode id="AD3FA850FF863A6BFB62205839425785" box="[1277,1346,1397,1423]" collectionCode="AB" pageId="12" pageNumber="473">AB02</specimenCode>
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) cruise,
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<date id="892726EBFF863A6BFF0820B43D4657B9" box="[151,326,1432,1459]" pageId="12" pageNumber="473" value="2015-03-14">
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<collectingDate id="9963DF03FF863A6BFF0820B43D4657B9" box="[151,326,1432,1459]" pageId="12" pageNumber="473" value="2015-03-14">14 March 2015</collectingDate>
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</date>
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;
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<typeStatus id="2222BE89FF863A6BFECD20B43DB557B9" box="[338,437,1433,1459]" pageId="12" pageNumber="473" type="paratype">paratype</typeStatus>
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, non-ovigerous female (
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<specimenCode id="AD3FA850FF863A6BFD5A20B43F8057B9" box="[709,896,1432,1459]" collectionCode="ZRC" country="Singapore" httpUri="http://grbio.org/cool/16z4-1tbx" name="Zoological Reference Collection, National University of Singapore" pageId="12" pageNumber="473">ZRC 2020.0163</specimenCode>
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),
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<quantity id="3A61ADCEFF863A6BFC0C20B43FEB57B9" box="[915,1003,1433,1459]" metricMagnitude="-3" metricUnit="m" metricValue="2.2" pageId="12" pageNumber="473" unit="mm" value="2.2">2.2 mm</quantity>
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, layer
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<quantity id="3A61ADCEFF863A6BFBA920B4388D57B9" box="[1078,1165,1433,1459]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" metricValueMax="2.0" metricValueMin="0.0" pageId="12" pageNumber="473" unit="cm" value="1.0" valueMax="2.0" valueMin="0.0">0–2 cm</quantity>
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, other collection data as
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<typeStatus id="2222BE89FF863A6BFF0820913CFD57DC" box="[151,253,1468,1494]" pageId="12" pageNumber="473" type="holotype">holotype</typeStatus>
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;
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<typeStatus id="2222BE89FF863A6BFE9620903D6C57DD" box="[265,364,1469,1495]" pageId="12" pageNumber="473" type="paratype">paratype</typeStatus>
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, non-ovigerous female (
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<specimenCode id="AD3FA850FF863A6BFD1F20903F3C57DD" box="[640,828,1468,1495]" collectionCode="ZRC" country="Singapore" httpUri="http://grbio.org/cool/16z4-1tbx" name="Zoological Reference Collection, National University of Singapore" pageId="12" pageNumber="473">ZRC 2020.0164</specimenCode>
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),
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<quantity id="3A61ADCEFF863A6BFCCF20903FA957DD" box="[848,937,1469,1495]" metricMagnitude="-3" metricUnit="m" metricValue="2.1" pageId="12" pageNumber="473" unit="mm" value="2.1">2.1 mm</quantity>
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, station S11 (
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,
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),
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<quantity id="3A61ADCEFF863A6BFF0820CC3CEE57F1" box="[151,238,1505,1531]" metricMagnitude="3" metricUnit="m" metricValue="4.148" pageId="12" pageNumber="473" unit="m" value="4148.0">
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<elevation id="76B4E718FF863A6BFF0820CC3CEE57F1" box="[151,238,1505,1531]" metricMagnitude="3" metricUnit="m" metricValue="4.148" pageId="12" pageNumber="473" unit="m" value="4148.0">4148 m</elevation>
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</quantity>
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, box corer (deployment # BC25), layer
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<quantity id="3A61ADCEFF863A6BFD3220CC3F0357F1" box="[685,771,1505,1531]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" metricValueMax="2.0" metricValueMin="0.0" pageId="12" pageNumber="473" unit="cm" value="1.0" valueMax="2.0" valueMin="0.0">0–2 cm</quantity>
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, sieve mesh size
|
||
<quantity id="3A61ADCEFF863A6BFC5C20CC381C57F1" box="[963,1052,1505,1531]" metricMagnitude="-1" metricUnit="m" metricValue="3.0" pageId="12" pageNumber="473" unit="mm" value="300.0">300 µm</quantity>
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,
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<date id="892726EBFF863A6BFBB720CC38D757F1" box="[1064,1239,1504,1531]" pageId="12" pageNumber="473" value="2015-03-14">
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<collectingDate id="9963DF03FF863A6BFBB720CC38D757F1" box="[1064,1239,1504,1531]" pageId="12" pageNumber="473" value="2015-03-14">14 March 2015</collectingDate>
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</date>
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.
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</materialsCitation>
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</paragraph>
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||
</subSubSection>
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<subSubSection id="B58353A0FF863A6BFF5823293E0154FC" pageId="12" pageNumber="473" type="diagnosis">
|
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<paragraph id="FD26002BFF863A6BFF5823293E0154FC" blockId="12.[151,1437,1324,2035]" pageId="12" pageNumber="473">
|
||
<emphasis id="CFEDDC39FF863A6BFF5823293D425415" bold="true" box="[199,322,1540,1567]" pageId="12" pageNumber="473">Diagnosis.</emphasis>
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||
Pleotelson not narrower at join with pleonite-5. Labium with spiniform setae distally. Maxilliped endite with two setae distally; palp article-2 outer margin with long seta. Chela fixed finger with one large tooth distally. Pereopods merus and carpus with long spiniform setae (“bayonet spines” in
|
||
<bibRefCitation id="99087DDAFF863A6BFBCA236138D0546D" author="Bird, G. J." box="[1109,1232,1612,1639]" pageId="12" pageNumber="473" pagination="1771 - 1815" refId="ref9177" refString="Bird, G. J. (2014) Tanaidacea (Crustacea: Peracarida) of the North-east Atlantic: the genera Leptognathioides and Portaratrum of the ' Atlantic Margin'. Journal of Natural History, 48 (29 - 30), 1771 - 1815. https: // doi. org / 10.1080 / 00222933.2014.896489" type="journal article" year="2014">Bird, 2014</bibRefCitation>
|
||
) that often extend beyond half the length of the succeeding article. Pereopods 1–3 carpus with simple seta dorsodistally; propodus without spinules ventrally; unguis tip rounded. Pereopods 4–6 ischium with two setae; dactylus with spinules ventrally. Pleopod basal article subovate; exopod biarticulate. Uropod exopod biarticulate, article-2 cap-like with long seta extending beyond endopod.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="B58353A0FF863A76FF58222D394B5011" lastPageId="17" lastPageNumber="478" pageId="12" pageNumber="473" type="description">
|
||
<paragraph id="FD26002BFF863A6BFF58222D3ECB5511" blockId="12.[151,1437,1324,2035]" box="[199,715,1792,1819]" pageId="12" pageNumber="473">
|
||
<emphasis id="CFEDDC39FF863A6BFF58222D3D595511" bold="true" box="[199,345,1792,1819]" pageId="12" pageNumber="473">Description.</emphasis>
|
||
Non-ovigerous female
|
||
<typeStatus id="2222BE89FF863A6BFDFD222D3EC45510" box="[610,708,1792,1818]" pageId="12" pageNumber="473" type="holotype">holotype</typeStatus>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF863A6BFF582209386C5568" blockId="12.[151,1437,1324,2035]" pageId="12" pageNumber="473">
|
||
Body (
|
||
<figureCitation id="65A21CAEFF863A6BFE8D22093D695535" box="[274,361,1828,1855]" captionStart="FIGURE 6" captionStartId="14.[151,250,1934,1959]" captionTargetBox="[193,1392,189,1900]" captionTargetId="figure@14.[183,1404,181,1909]" captionTargetPageId="14" captionText="FIGURE 6. Portaratrum birdi n. sp. OMS exploratory area, Clarion-Clipperton Fracture Zone. (A, C–F) Holotype female (ZRC 2020.0162) and (B) paratype female (ZRC 2020.0163): habitus, (A) dorsal and (B) lateral views; (C) pleonite-5, pleotelson and uropod, lateral; (D) ventral spur on pleonite-5; (E) antennule; (F) antenna. Scale bars: 1 mm for (A, B); 100 µm for (C–F)." figureDoi="http://doi.org/10.5281/zenodo.3734687" httpUri="https://zenodo.org/record/3734687/files/figure.png" pageId="12" pageNumber="473">Fig. 6A</figureCitation>
|
||
) elongate, subcylindrical, about 8.5 times as long as wide, and fragile. Cephalothorax about 17% of body length, suboval in dorsal view, and with one minute seta posterior to antennule.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF863A6BFF58224038CF55A1" blockId="12.[151,1437,1324,2035]" pageId="12" pageNumber="473">Pereon about 57% of body length; pereonites 1 and 6 shortest, wider than long; pereonites 2 to 5 of subequal length, almost as long as wide; pereonite-1 bearing one minute seta at each dorsoanterior corner.</paragraph>
|
||
<paragraph id="FD26002BFF863A6AFF5822993FFF52DD" blockId="12.[151,1437,1324,2035]" lastBlockId="13.[151,1437,152,2015]" lastPageId="13" lastPageNumber="474" pageId="12" pageNumber="473">
|
||
Pleon about 26% of body length; all five pleonites of subequal length, each 0.3 times as long as wide, slightly rounded and with one simple seta laterally; pleonite-5 with a large ventrally-directed spur (
|
||
<figureCitation id="65A21CAEFF863A6BFB1822F5391155F8" box="[1159,1297,2008,2034]" captionStart="FIGURE 6" captionStartId="14.[151,250,1934,1959]" captionTargetBox="[193,1392,189,1900]" captionTargetId="figure@14.[183,1404,181,1909]" captionTargetPageId="14" captionText="FIGURE 6. Portaratrum birdi n. sp. OMS exploratory area, Clarion-Clipperton Fracture Zone. (A, C–F) Holotype female (ZRC 2020.0162) and (B) paratype female (ZRC 2020.0163): habitus, (A) dorsal and (B) lateral views; (C) pleonite-5, pleotelson and uropod, lateral; (D) ventral spur on pleonite-5; (E) antennule; (F) antenna. Scale bars: 1 mm for (A, B); 100 µm for (C–F)." figureDoi="http://doi.org/10.5281/zenodo.3734687" httpUri="https://zenodo.org/record/3734687/files/figure.png" pageId="12" pageNumber="473">Figs 6C, 6D</figureCitation>
|
||
,
|
||
<figureCitation id="65A21CAEFF863A6BFA8322F4394F55F9" box="[1308,1359,2009,2035]" captionStart="FIGURE 11" captionStartId="19.[151,250,1934,1959]" captionTargetBox="[218,1369,181,1908]" captionTargetId="figure@19.[218,1369,181,1908]" captionTargetPageId="19" captionText="FIGURE 11. Portaratrum birdi n. sp. Holotype female. (A) pleonite-5 ventral spur; (B) left mandible; (C) labium spiniform setae; (D) chela inner margin with two simple setae and four rows of microtrichia; (E) pereopod-1 propodus microtrichia; (F) pereopod-1 unguis tip; (G) pereopod-4 dactylus spinulation. Scale bars: 50 µm." figureDoi="http://doi.org/10.5281/zenodo.3734697" httpUri="https://zenodo.org/record/3734697/files/figure.png" pageId="12" pageNumber="473">11A</figureCitation>
|
||
); pleo- telson (
|
||
<figureCitation id="65A21CAEFF873A6AFF7725B43D6552B9" box="[232,357,153,179]" captionStart="FIGURE 6" captionStartId="14.[151,250,1934,1959]" captionTargetBox="[193,1392,189,1900]" captionTargetId="figure@14.[183,1404,181,1909]" captionTargetPageId="14" captionText="FIGURE 6. Portaratrum birdi n. sp. OMS exploratory area, Clarion-Clipperton Fracture Zone. (A, C–F) Holotype female (ZRC 2020.0162) and (B) paratype female (ZRC 2020.0163): habitus, (A) dorsal and (B) lateral views; (C) pleonite-5, pleotelson and uropod, lateral; (D) ventral spur on pleonite-5; (E) antennule; (F) antenna. Scale bars: 1 mm for (A, B); 100 µm for (C–F)." figureDoi="http://doi.org/10.5281/zenodo.3734687" httpUri="https://zenodo.org/record/3734687/files/figure.png" pageId="13" pageNumber="474">Figs 6A, C</figureCitation>
|
||
) about 31% of pleon length, subpentagonal, not narrower at join with pleonite-5, with six simple setae dorsodistally, posterior end pointed but blunt, bearing four minute setae.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF873A6AFF5825CC3F335381" blockId="13.[151,1437,152,2015]" pageId="13" pageNumber="474">
|
||
Antennule (
|
||
<figureCitation id="65A21CAEFF873A6AFED225CC3DA452F6" box="[333,420,225,252]" captionStart="FIGURE 6" captionStartId="14.[151,250,1934,1959]" captionTargetBox="[193,1392,189,1900]" captionTargetId="figure@14.[183,1404,181,1909]" captionTargetPageId="14" captionText="FIGURE 6. Portaratrum birdi n. sp. OMS exploratory area, Clarion-Clipperton Fracture Zone. (A, C–F) Holotype female (ZRC 2020.0162) and (B) paratype female (ZRC 2020.0163): habitus, (A) dorsal and (B) lateral views; (C) pleonite-5, pleotelson and uropod, lateral; (D) ventral spur on pleonite-5; (E) antennule; (F) antenna. Scale bars: 1 mm for (A, B); 100 µm for (C–F)." figureDoi="http://doi.org/10.5281/zenodo.3734687" httpUri="https://zenodo.org/record/3734687/files/figure.png" pageId="13" pageNumber="474">Fig. 6E</figureCitation>
|
||
) with four articles, about 0.8 times as long as cephalothorax; article-1 longest, about 0.5 times as long as total length of antennule, with some setules proximally, five plumose and one simple setae subdistally; article-2 about 0.5 times as long as article-1, with four plumose and two simple setae distally; article-3 shortest, about 0.6 times as long as article-2, with one plumose and two simple setae distally; article-4 slightly longer than article-3, with one complex aesthetasc and six simple setae.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF873A6AFF5824B838EA5069" blockId="13.[151,1437,152,2015]" pageId="13" pageNumber="474">
|
||
Antenna (
|
||
<figureCitation id="65A21CAEFF873A6AFEA924B83D8B53BA" box="[310,395,405,432]" captionStart="FIGURE 6" captionStartId="14.[151,250,1934,1959]" captionTargetBox="[193,1392,189,1900]" captionTargetId="figure@14.[183,1404,181,1909]" captionTargetPageId="14" captionText="FIGURE 6. Portaratrum birdi n. sp. OMS exploratory area, Clarion-Clipperton Fracture Zone. (A, C–F) Holotype female (ZRC 2020.0162) and (B) paratype female (ZRC 2020.0163): habitus, (A) dorsal and (B) lateral views; (C) pleonite-5, pleotelson and uropod, lateral; (D) ventral spur on pleonite-5; (E) antennule; (F) antenna. Scale bars: 1 mm for (A, B); 100 µm for (C–F)." figureDoi="http://doi.org/10.5281/zenodo.3734687" httpUri="https://zenodo.org/record/3734687/files/figure.png" pageId="13" pageNumber="474">Fig. 6F</figureCitation>
|
||
) with six articles, about 0.8 times as long as antennule; article-1 damaged during dissection and not examined; article-2 with one simple seta distally; article-3 about 0.8 times as long as article-2, with one simple seta distally; article-4 longest, about 0.7 times as long as total length of antenna, with fusion line (faint un- der light microscopy;
|
||
<figureCitation id="65A21CAEFF873A6AFE11272C3DDD5011" box="[398,477,513,539]" captionStart="FIGURE 10" captionStartId="18.[151,250,1972,1997]" captionTargetBox="[172,1415,957,1947]" captionTargetId="figure@18.[172,1415,957,1947]" captionTargetPageId="18" captionText="FIGURE 10. Portaratrum birdi n. sp. Paratype female (ZRC 2020.0164). Confocal laser scanning microscopy images of habitus ventral with insets highlighting article-1 of pleopod exopods and fusion line of antennae. Scale bars: 200 µm." figureDoi="http://doi.org/10.5281/zenodo.3734695" httpUri="https://zenodo.org/record/3734695/files/figure.png" pageId="13" pageNumber="474">Fig. 10</figureCitation>
|
||
for CLSM image of
|
||
<typeStatus id="2222BE89FF873A6AFD57272C3F285011" box="[712,808,513,539]" pageId="13" pageNumber="474" type="paratype">paratype</typeStatus>
|
||
female ZRC 2020.0164), with one long plumose seta at mid-length and three plumose and three simple setae distally; article-5 about 0.4 times as long as article-4, with one simple seta distally; article-6 shortest, about 0.2 times as long as article-5, with seven simple setae.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF873A6AFF5827403D2E51C1" blockId="13.[151,1437,152,2015]" pageId="13" pageNumber="474">
|
||
Labrum (
|
||
<figureCitation id="65A21CAEFF873A6AFEB227403D8A508D" box="[301,394,621,647]" captionStart="FIGURE 7" captionStartId="15.[151,250,1958,1983]" captionTargetBox="[237,1353,189,1917]" captionTargetId="figure@15.[223,1365,181,1932]" captionTargetPageId="15" captionText="FIGURE 7. Portaratrum birdi n. sp. Holotype female. Labrum, (A) dorsal and (A`) lateral views; (B) left and (B`) right mandibles; (C) labium; (D) maxillule; (E) maxilla; (F) maxillipeds. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734689" httpUri="https://zenodo.org/record/3734689/files/figure.png" pageId="13" pageNumber="474">Figs 7A</figureCitation>
|
||
,A`) hood-shaped, densely covered by setules. Left mandible (
|
||
<figureCitation id="65A21CAEFF873A6AFBA627403894508D" box="[1081,1172,621,647]" captionStart="FIGURE 7" captionStartId="15.[151,250,1958,1983]" captionTargetBox="[237,1353,189,1917]" captionTargetId="figure@15.[223,1365,181,1932]" captionTargetPageId="15" captionText="FIGURE 7. Portaratrum birdi n. sp. Holotype female. Labrum, (A) dorsal and (A`) lateral views; (B) left and (B`) right mandibles; (C) labium; (D) maxillule; (E) maxilla; (F) maxillipeds. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734689" httpUri="https://zenodo.org/record/3734689/files/figure.png" pageId="13" pageNumber="474">Figs 7B</figureCitation>
|
||
,
|
||
<figureCitation id="65A21CAEFF873A6AFB01274038CD508D" box="[1182,1229,621,647]" captionStart="FIGURE 11" captionStartId="19.[151,250,1934,1959]" captionTargetBox="[218,1369,181,1908]" captionTargetId="figure@19.[218,1369,181,1908]" captionTargetPageId="19" captionText="FIGURE 11. Portaratrum birdi n. sp. Holotype female. (A) pleonite-5 ventral spur; (B) left mandible; (C) labium spiniform setae; (D) chela inner margin with two simple setae and four rows of microtrichia; (E) pereopod-1 propodus microtrichia; (F) pereopod-1 unguis tip; (G) pereopod-4 dactylus spinulation. Scale bars: 50 µm." figureDoi="http://doi.org/10.5281/zenodo.3734697" httpUri="https://zenodo.org/record/3734697/files/figure.png" pageId="13" pageNumber="474">11B</figureCitation>
|
||
) molar acuminate, with numerous fine setae distally; incisor bicuspid;
|
||
<emphasis id="CFEDDC39FF873A6AFD7527BC3F9350A1" box="[746,915,657,683]" italics="true" pageId="13" pageNumber="474">lacinia mobilis</emphasis>
|
||
large and conical. Right mandible (
|
||
<figureCitation id="65A21CAEFF873A6AFAAD27BC397750A1" box="[1330,1399,657,683]" captionStart="FIGURE 7" captionStartId="15.[151,250,1958,1983]" captionTargetBox="[237,1353,189,1917]" captionTargetId="figure@15.[223,1365,181,1932]" captionTargetPageId="15" captionText="FIGURE 7. Portaratrum birdi n. sp. Holotype female. Labrum, (A) dorsal and (A`) lateral views; (B) left and (B`) right mandibles; (C) labium; (D) maxillule; (E) maxilla; (F) maxillipeds. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734689" httpUri="https://zenodo.org/record/3734689/files/figure.png" pageId="13" pageNumber="474">Fig. 7</figureCitation>
|
||
B`) damaged during dissection. Labium (
|
||
<figureCitation id="65A21CAEFF873A6AFDA527983E9650C5" box="[570,662,693,719]" captionStart="FIGURE 4" captionStartId="9.[151,250,1960,1985]" captionTargetBox="[203,1388,197,1926]" captionTargetId="figure@9.[192,1395,181,1935]" captionTargetPageId="9" captionText="FIGURE 4. Unispinosus eopacificus n. gen., n. sp. Holotype female (A–F, H) and allotype male (G). (A–F) pereopods 1–6; (G) pleopod-1; (H) uropods, ventral view. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734683" httpUri="https://zenodo.org/record/3734683/files/figure.png" pageId="13" pageNumber="474">Figs 4C</figureCitation>
|
||
,
|
||
<figureCitation id="65A21CAEFF873A6AFD3D27983ED150C5" box="[674,721,693,719]" captionStart="FIGURE 11" captionStartId="19.[151,250,1934,1959]" captionTargetBox="[218,1369,181,1908]" captionTargetId="figure@19.[218,1369,181,1908]" captionTargetPageId="19" captionText="FIGURE 11. Portaratrum birdi n. sp. Holotype female. (A) pleonite-5 ventral spur; (B) left mandible; (C) labium spiniform setae; (D) chela inner margin with two simple setae and four rows of microtrichia; (E) pereopod-1 propodus microtrichia; (F) pereopod-1 unguis tip; (G) pereopod-4 dactylus spinulation. Scale bars: 50 µm." figureDoi="http://doi.org/10.5281/zenodo.3734697" httpUri="https://zenodo.org/record/3734697/files/figure.png" pageId="13" pageNumber="474">11C</figureCitation>
|
||
) with one pair of lobes, each with some setules proximally and one minute spiniform seta and many setules distally. Epignath not examined. Maxillule (
|
||
<figureCitation id="65A21CAEFF873A6AFBE727F438D150F9" box="[1144,1233,729,755]" captionStart="FIGURE 7" captionStartId="15.[151,250,1958,1983]" captionTargetBox="[237,1353,189,1917]" captionTargetId="figure@15.[223,1365,181,1932]" captionTargetPageId="15" captionText="FIGURE 7. Portaratrum birdi n. sp. Holotype female. Labrum, (A) dorsal and (A`) lateral views; (B) left and (B`) right mandibles; (C) labium; (D) maxillule; (E) maxilla; (F) maxillipeds. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734689" httpUri="https://zenodo.org/record/3734689/files/figure.png" pageId="13" pageNumber="474">Fig. 7D</figureCitation>
|
||
) endite with eight spiniform setae and numerous setules distally and numerous simple setae along entire length; palp with two long terminal setae. Maxilla (
|
||
<figureCitation id="65A21CAEFF873A6AFE36260C3DFE5131" box="[425,510,801,827]" captionStart="FIGURE 7" captionStartId="15.[151,250,1958,1983]" captionTargetBox="[237,1353,189,1917]" captionTargetId="figure@15.[223,1365,181,1932]" captionTargetPageId="15" captionText="FIGURE 7. Portaratrum birdi n. sp. Holotype female. Labrum, (A) dorsal and (A`) lateral views; (B) left and (B`) right mandibles; (C) labium; (D) maxillule; (E) maxilla; (F) maxillipeds. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734689" httpUri="https://zenodo.org/record/3734689/files/figure.png" pageId="13" pageNumber="474">Fig. 7E</figureCitation>
|
||
) subtriangular. Maxilliped (
|
||
<figureCitation id="65A21CAEFF873A6AFCA6260C3F8C5131" box="[825,908,801,827]" captionStart="FIGURE 7" captionStartId="15.[151,250,1958,1983]" captionTargetBox="[237,1353,189,1917]" captionTargetId="figure@15.[223,1365,181,1932]" captionTargetPageId="15" captionText="FIGURE 7. Portaratrum birdi n. sp. Holotype female. Labrum, (A) dorsal and (A`) lateral views; (B) left and (B`) right mandibles; (C) labium; (D) maxillule; (E) maxilla; (F) maxillipeds. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734689" httpUri="https://zenodo.org/record/3734689/files/figure.png" pageId="13" pageNumber="474">Fig. 7F</figureCitation>
|
||
) bases not fused distally, each with one simple seta distally; endite with one lobe, one rounded tubercle and two simple setae distally; palp article-1 naked; article-2 with two simple and one setulose setae on inner margin and one setulose seta on outer margin; article-3 with two short and two long simple setae on inner margin; article-4 with one simple seta on outer margin and five simple setae distally.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF873A6AFF5826F83D2E56CD" blockId="13.[151,1437,152,2015]" pageId="13" pageNumber="474">
|
||
Cheliped (
|
||
<figureCitation id="65A21CAEFF873A6AFEA326F83D9451E5" box="[316,404,981,1007]" captionStart="FIGURE 8" captionStartId="16.[151,250,1958,1983]" captionTargetBox="[199,1394,187,1923]" captionTargetId="figure@16.[183,1404,181,1932]" captionTargetPageId="16" captionText="FIGURE 8. Portaratrum birdi n. sp. Holotype female. (A) Left cheliped, with setae and microtrichia on inner margin (denoted by asterisks *); (B–G) pereopods 1–6. Scale bars: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734691" httpUri="https://zenodo.org/record/3734691/files/figure.png" pageId="13" pageNumber="474">Fig. 8A</figureCitation>
|
||
) basis attached to a massive sclerite, slightly wider than long, with small posterior lobe and one dorsal seta; merus ventral margin as long as carpus margin, with one simple seta; carpus about 1.3 times as long as wide, with one simple seta dorso-proximally, one simple seta dorsodistally and two simple setae ventrally; propodus palm dorsal and ventral margins sub-parallel, with two simple setae and about four rows of microtrichia on inner margin near dactylus insertion (
|
||
<figureCitation id="65A21CAEFF873A6AFDFF21483EC75675" box="[608,711,1125,1151]" captionStart="FIGURE 11" captionStartId="19.[151,250,1934,1959]" captionTargetBox="[218,1369,181,1908]" captionTargetId="figure@19.[218,1369,181,1908]" captionTargetPageId="19" captionText="FIGURE 11. Portaratrum birdi n. sp. Holotype female. (A) pleonite-5 ventral spur; (B) left mandible; (C) labium spiniform setae; (D) chela inner margin with two simple setae and four rows of microtrichia; (E) pereopod-1 propodus microtrichia; (F) pereopod-1 unguis tip; (G) pereopod-4 dactylus spinulation. Scale bars: 50 µm." figureDoi="http://doi.org/10.5281/zenodo.3734697" httpUri="https://zenodo.org/record/3734697/files/figure.png" pageId="13" pageNumber="474">Fig. 11D</figureCitation>
|
||
), fixed finger with one large tooth on cutting edge distally, three simple setae on outer margin near cutting edge and two simple setae ventrally; dactylus with one simple seta on inner margin.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF873A6AFF5821FC3FB457C9" blockId="13.[151,1437,152,2015]" pageId="13" pageNumber="474">
|
||
Pereopod-1 (
|
||
<figureCitation id="65A21CAEFF873A6AFEC821FC3DAD56E1" box="[343,429,1233,1259]" captionStart="FIGURE 8" captionStartId="16.[151,250,1958,1983]" captionTargetBox="[199,1394,187,1923]" captionTargetId="figure@16.[183,1404,181,1932]" captionTargetPageId="16" captionText="FIGURE 8. Portaratrum birdi n. sp. Holotype female. (A) Left cheliped, with setae and microtrichia on inner margin (denoted by asterisks *); (B–G) pereopods 1–6. Scale bars: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734691" httpUri="https://zenodo.org/record/3734691/files/figure.png" pageId="13" pageNumber="474">Fig. 8B</figureCitation>
|
||
) coxa with one simple seta; basis slender, about 6.0 times as long as wide, naked; ischium short, less than 0.1 times as long as basis, with one simple seta ventrodistally; merus about 0.3 times as long as basis, with one long spiniform seta distally; carpus slightly longer than merus, with microtrichia along ventral margin and one short simple and two long spiniform setae distally; propodus about 0.5 times as long as basis, with microtrichia along ventral margin (
|
||
<figureCitation id="65A21CAEFF873A6AFE0F204C3DF45771" box="[400,500,1377,1403]" captionStart="FIGURE 11" captionStartId="19.[151,250,1934,1959]" captionTargetBox="[218,1369,181,1908]" captionTargetId="figure@19.[218,1369,181,1908]" captionTargetPageId="19" captionText="FIGURE 11. Portaratrum birdi n. sp. Holotype female. (A) pleonite-5 ventral spur; (B) left mandible; (C) labium spiniform setae; (D) chela inner margin with two simple setae and four rows of microtrichia; (E) pereopod-1 propodus microtrichia; (F) pereopod-1 unguis tip; (G) pereopod-4 dactylus spinulation. Scale bars: 50 µm." figureDoi="http://doi.org/10.5281/zenodo.3734697" httpUri="https://zenodo.org/record/3734697/files/figure.png" pageId="13" pageNumber="474">Fig. 11E</figureCitation>
|
||
), one small spiniform seta dorsodistally and one long spiniform seta ventrodistally; dactylus and unguis naked, slender and slightly curved ventrally, combined length slightly longer than propodus; unguis about 1.3 times as long as dactylus, with rounded tip (
|
||
<figureCitation id="65A21CAEFF873A6AFCDA20843FA857C9" box="[837,936,1449,1475]" captionStart="FIGURE 11" captionStartId="19.[151,250,1934,1959]" captionTargetBox="[218,1369,181,1908]" captionTargetId="figure@19.[218,1369,181,1908]" captionTargetPageId="19" captionText="FIGURE 11. Portaratrum birdi n. sp. Holotype female. (A) pleonite-5 ventral spur; (B) left mandible; (C) labium spiniform setae; (D) chela inner margin with two simple setae and four rows of microtrichia; (E) pereopod-1 propodus microtrichia; (F) pereopod-1 unguis tip; (G) pereopod-4 dactylus spinulation. Scale bars: 50 µm." figureDoi="http://doi.org/10.5281/zenodo.3734697" httpUri="https://zenodo.org/record/3734697/files/figure.png" pageId="13" pageNumber="474">Fig. 11F</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF873A6AFF5820E038C057ED" blockId="13.[151,1437,152,2015]" box="[199,1216,1485,1511]" pageId="13" pageNumber="474">
|
||
Pereopod-2 (
|
||
<figureCitation id="65A21CAEFF873A6AFEC720E03DAD57ED" box="[344,429,1485,1511]" captionStart="FIGURE 8" captionStartId="16.[151,250,1958,1983]" captionTargetBox="[199,1394,187,1923]" captionTargetId="figure@16.[183,1404,181,1932]" captionTargetPageId="16" captionText="FIGURE 8. Portaratrum birdi n. sp. Holotype female. (A) Left cheliped, with setae and microtrichia on inner margin (denoted by asterisks *); (B–G) pereopods 1–6. Scale bars: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734691" httpUri="https://zenodo.org/record/3734691/files/figure.png" pageId="13" pageNumber="474">Fig. 8C</figureCitation>
|
||
) similar to pereopod-1, except carpus with three long spiniform setae.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF873A6AFF5820DC392A5401" blockId="13.[151,1437,152,2015]" box="[199,1322,1521,1547]" pageId="13" pageNumber="474">
|
||
Pereopod-3 (
|
||
<figureCitation id="65A21CAEFF873A6AFEC720DC3DAF5401" box="[344,431,1521,1547]" captionStart="FIGURE 8" captionStartId="16.[151,250,1958,1983]" captionTargetBox="[199,1394,187,1923]" captionTargetId="figure@16.[183,1404,181,1932]" captionTargetPageId="16" captionText="FIGURE 8. Portaratrum birdi n. sp. Holotype female. (A) Left cheliped, with setae and microtrichia on inner margin (denoted by asterisks *); (B–G) pereopods 1–6. Scale bars: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734691" httpUri="https://zenodo.org/record/3734691/files/figure.png" pageId="13" pageNumber="474">Fig. 8D</figureCitation>
|
||
) similar to pereopod-2, except propodus with some setules along distal margin.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF873A6AFF5823383D1A5545" blockId="13.[151,1437,152,2015]" pageId="13" pageNumber="474">
|
||
Pereopod-4 (
|
||
<figureCitation id="65A21CAEFF873A6AFEC723383DAD5425" box="[344,429,1557,1583]" captionStart="FIGURE 8" captionStartId="16.[151,250,1958,1983]" captionTargetBox="[199,1394,187,1923]" captionTargetId="figure@16.[183,1404,181,1932]" captionTargetPageId="16" captionText="FIGURE 8. Portaratrum birdi n. sp. Holotype female. (A) Left cheliped, with setae and microtrichia on inner margin (denoted by asterisks *); (B–G) pereopods 1–6. Scale bars: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734691" httpUri="https://zenodo.org/record/3734691/files/figure.png" pageId="13" pageNumber="474">Fig. 8E</figureCitation>
|
||
) coxa with one simple seta; basis slender, about 4.0 times as long as wide, with two plumose setae at mid-length where it is also widest; ischium short, less than 0.1 times as long as basis, with two simple setae ventrodistally; merus about 0.3 times as long as basis, with two long spiniform setae distally; carpus about 1.3 times as long as merus, with microtrichia along entire length and one short simple and three long spiniform setae distally; propodus about 0.4 times as long as basis, with microtrichia along entire length, one plumose seta dorsomedially, one small and one long spiniform setae dorsodistally, two long spiniform setae ventrodistally and many setules along entire distal margin; dactylus and unguis slender and almost straight, combined length about 1.4 times as long as propodus; dactylus with spinules along ventral margin (
|
||
<figureCitation id="65A21CAEFF873A6AFC58223C382E5521" box="[967,1070,1809,1835]" captionStart="FIGURE 11" captionStartId="19.[151,250,1934,1959]" captionTargetBox="[218,1369,181,1908]" captionTargetId="figure@19.[218,1369,181,1908]" captionTargetPageId="19" captionText="FIGURE 11. Portaratrum birdi n. sp. Holotype female. (A) pleonite-5 ventral spur; (B) left mandible; (C) labium spiniform setae; (D) chela inner margin with two simple setae and four rows of microtrichia; (E) pereopod-1 propodus microtrichia; (F) pereopod-1 unguis tip; (G) pereopod-4 dactylus spinulation. Scale bars: 50 µm." figureDoi="http://doi.org/10.5281/zenodo.3734697" httpUri="https://zenodo.org/record/3734697/files/figure.png" pageId="13" pageNumber="474">Fig. 11G</figureCitation>
|
||
); unguis about 0.8 times as long as dactylus.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF873A6AFF5822753D30559D" blockId="13.[151,1437,152,2015]" pageId="13" pageNumber="474">
|
||
Pereopod-5 (
|
||
<figureCitation id="65A21CAEFF873A6AFEC822743DAA5579" box="[343,426,1881,1907]" captionStart="FIGURE 8" captionStartId="16.[151,250,1958,1983]" captionTargetBox="[199,1394,187,1923]" captionTargetId="figure@16.[183,1404,181,1932]" captionTargetPageId="16" captionText="FIGURE 8. Portaratrum birdi n. sp. Holotype female. (A) Left cheliped, with setae and microtrichia on inner margin (denoted by asterisks *); (B–G) pereopods 1–6. Scale bars: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734691" httpUri="https://zenodo.org/record/3734691/files/figure.png" pageId="13" pageNumber="474">Fig. 8F</figureCitation>
|
||
) similar to pereopod-4, except basis with three plumose setae and propodus without dorsal plumose seta.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF873A6AFF58228C38CA55D5" blockId="13.[151,1437,152,2015]" pageId="13" pageNumber="474">
|
||
Pereopod-6 (
|
||
<figureCitation id="65A21CAEFF873A6AFEC8228C3DAE55B1" box="[343,430,1953,1979]" captionStart="FIGURE 8" captionStartId="16.[151,250,1958,1983]" captionTargetBox="[199,1394,187,1923]" captionTargetId="figure@16.[183,1404,181,1932]" captionTargetPageId="16" captionText="FIGURE 8. Portaratrum birdi n. sp. Holotype female. (A) Left cheliped, with setae and microtrichia on inner margin (denoted by asterisks *); (B–G) pereopods 1–6. Scale bars: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734691" httpUri="https://zenodo.org/record/3734691/files/figure.png" pageId="13" pageNumber="474">Fig. 8G</figureCitation>
|
||
) similar to pereopod-5, except basis naked; propodus with three long spiniform setae dorsodistally, dactylus with one minute seta distally and unguis about 0.4 times as long as dactylus.
|
||
</paragraph>
|
||
<caption id="A9E650A3FF843A69FF0822A3397055E5" ID-DOI="http://doi.org/10.5281/zenodo.3734687" ID-Zenodo-Dep="3734687" httpUri="https://zenodo.org/record/3734687/files/figure.png" pageId="14" pageNumber="475" startId="14.[151,250,1934,1959]" targetBox="[193,1392,189,1900]" targetPageId="14">
|
||
<paragraph id="FD26002BFF843A69FF0822A3397055E5" blockId="14.[151,1437,1934,2031]" pageId="14" pageNumber="475">
|
||
<emphasis id="CFEDDC39FF843A69FF0822A33D1155AD" bold="true" box="[151,273,1934,1959]" pageId="14" pageNumber="475">FIGURE 6.</emphasis>
|
||
<taxonomicName id="3A997BA8FF843A69FE8822BD3DCC55AD" authority="Chim & Tong, 2020" authorityName="Chim & Tong" authorityYear="2020" box="[279,460,1935,1959]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="475" phylum="Arthropoda" rank="species" species="birdi" status="sp. nov.">
|
||
<emphasis id="CFEDDC39FF843A69FE8822BD3DCC55AD" box="[279,460,1935,1959]" italics="true" pageId="14" pageNumber="475">Portaratrum birdi</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="CFEDDC39FF843A69FE4E22A23E0955AD" bold="true" box="[465,521,1935,1959]" pageId="14" pageNumber="475">
|
||
<taxonomicNameLabel id="D4DE6142FF843A69FE4E22A23E0955AD" box="[465,521,1935,1959]" pageId="14" pageNumber="475" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
OMS exploratory area, Clarion-Clipperton Fracture Zone. (A, C–F) Holotype female (ZRC 2020.0162) and (B) paratype female (ZRC 2020.0163): habitus, (A) dorsal and (B) lateral views; (C) pleonite-5, pleotelson and uropod, lateral; (D) ventral spur on pleonite-5; (E) antennule; (F) antenna. Scale bars: 1 mm for (A, B); 100 µm for (C–F).
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="A9E650A3FF853A68FF08228B3FDC55E9" ID-DOI="http://doi.org/10.5281/zenodo.3734689" ID-Zenodo-Dep="3734689" httpUri="https://zenodo.org/record/3734689/files/figure.png" pageId="15" pageNumber="476" startId="15.[151,250,1958,1983]" targetBox="[237,1353,189,1917]" targetPageId="15">
|
||
<paragraph id="FD26002BFF853A68FF08228B3FDC55E9" blockId="15.[151,1436,1958,2019]" pageId="15" pageNumber="476">
|
||
<emphasis id="CFEDDC39FF853A68FF08228B3D1355B5" bold="true" box="[151,275,1958,1983]" pageId="15" pageNumber="476">FIGURE 7.</emphasis>
|
||
<taxonomicName id="3A997BA8FF853A68FE85228A3DD155B4" authority="Chim & Tong, 2020" authorityName="Chim & Tong" authorityYear="2020" box="[282,465,1958,1982]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="15" pageNumber="476" phylum="Arthropoda" rank="species" species="birdi" status="sp. nov.">
|
||
<emphasis id="CFEDDC39FF853A68FE85228A3DD155B4" box="[282,465,1958,1982]" italics="true" pageId="15" pageNumber="476">Portaratrum birdi</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="CFEDDC39FF853A68FE48228A3E1155B5" bold="true" box="[471,529,1959,1983]" pageId="15" pageNumber="476">
|
||
<taxonomicNameLabel id="D4DE6142FF853A68FE48228A3E1155B5" box="[471,529,1959,1983]" pageId="15" pageNumber="476" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Holotype female. Labrum, (A) dorsal and (A`) lateral views; (B) left and (B`) right mandibles; (C) labium; (D) maxillule; (E) maxilla; (F) maxillipeds. Scale bar: 100 µm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="A9E650A3FF9A3A77FF08228B3EE955E9" ID-DOI="http://doi.org/10.5281/zenodo.3734691" ID-Zenodo-Dep="3734691" httpUri="https://zenodo.org/record/3734691/files/figure.png" pageId="16" pageNumber="477" startId="16.[151,250,1958,1983]" targetBox="[199,1394,187,1923]" targetPageId="16">
|
||
<paragraph id="FD26002BFF9A3A77FF08228B3EE955E9" blockId="16.[151,1436,1958,2019]" pageId="16" pageNumber="477">
|
||
<emphasis id="CFEDDC39FF9A3A77FF08228B3D1255B5" bold="true" box="[151,274,1958,1983]" pageId="16" pageNumber="477">FIGURE 8.</emphasis>
|
||
<taxonomicName id="3A997BA8FF9A3A77FE86228A3DCF55B4" authority="Chim & Tong, 2020" authorityName="Chim & Tong" authorityYear="2020" box="[281,463,1958,1982]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="16" pageNumber="477" phylum="Arthropoda" rank="species" species="birdi" status="sp. nov.">
|
||
<emphasis id="CFEDDC39FF9A3A77FE86228A3DCF55B4" box="[281,463,1958,1982]" italics="true" pageId="16" pageNumber="477">Portaratrum birdi</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="CFEDDC39FF9A3A77FE4A228A3E0E55B5" bold="true" box="[469,526,1959,1983]" pageId="16" pageNumber="477">
|
||
<taxonomicNameLabel id="D4DE6142FF9A3A77FE4A228A3E0E55B5" box="[469,526,1959,1983]" pageId="16" pageNumber="477" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Holotype female. (A) Left cheliped, with setae and microtrichia on inner margin (denoted by asterisks *); (B–G) pereopods 1–6. Scale bars: 100 µm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="FD26002BFF9B3A76FF5825B43EC95349" blockId="17.[151,1437,152,755]" pageId="17" pageNumber="478">
|
||
Pleopods (
|
||
<figureCitation id="65A21CAEFF9B3A76FEA325B43D9352B9" box="[316,403,153,179]" captionStart="FIGURE 9" captionStartId="17.[151,250,1762,1787]" captionTargetBox="[203,1390,784,1728]" captionTargetId="figure@17.[189,1398,777,1737]" captionTargetPageId="17" captionText="FIGURE 9. Portaratrum birdi n. sp. Holotype female. (A) pleopod-1; (B) uropod. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734693" httpUri="https://zenodo.org/record/3734693/files/figure.png" pageId="17" pageNumber="478">Fig. 9A</figureCitation>
|
||
) 1–5 similar; basal article subovate, about 2.0 times as long as wide, naked; endopod slender, about 5.5 times as long as wide, with one plumose seta subdistally and four very long feather setae distally; exopod slightly longer and wider than endopod, biarticulate, article-1 very short (not obvious under light microscopy;
|
||
<figureCitation id="65A21CAEFF9B3A76FAEF25CC3CB35315" captionStart="FIGURE 10" captionStartId="18.[151,250,1972,1997]" captionTargetBox="[172,1415,957,1947]" captionTargetId="figure@18.[172,1415,957,1947]" captionTargetPageId="18" captionText="FIGURE 10. Portaratrum birdi n. sp. Paratype female (ZRC 2020.0164). Confocal laser scanning microscopy images of habitus ventral with insets highlighting article-1 of pleopod exopods and fusion line of antennae. Scale bars: 200 µm." figureDoi="http://doi.org/10.5281/zenodo.3734695" httpUri="https://zenodo.org/record/3734695/files/figure.png" pageId="17" pageNumber="478">Fig. 10</figureCitation>
|
||
for CLSM image of
|
||
<typeStatus id="2222BE89FF9B3A76FE3C24283E035315" box="[419,515,261,287]" pageId="17" pageNumber="478" type="paratype">paratype</typeStatus>
|
||
female ZRC 2020.0164), article-2 bearing eight feather setae distally with a conspicuous gap between the two most exterior setae.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF9B3A76FF5824603DAC53FD" blockId="17.[151,1437,152,755]" pageId="17" pageNumber="478">
|
||
Uropod (
|
||
<figureCitation id="65A21CAEFF9B3A76FEB324603D82536D" box="[300,386,333,359]" captionStart="FIGURE 9" captionStartId="17.[151,250,1762,1787]" captionTargetBox="[203,1390,784,1728]" captionTargetId="figure@17.[189,1398,777,1737]" captionTargetPageId="17" captionText="FIGURE 9. Portaratrum birdi n. sp. Holotype female. (A) pleopod-1; (B) uropod. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3734693" httpUri="https://zenodo.org/record/3734693/files/figure.png" pageId="17" pageNumber="478">Fig. 9B</figureCitation>
|
||
) basal article about 1.8 times as long as wide, naked; endopod biarticulate; article-1 about 0.8 times as long as basal article, with two plumose setae distally; article-2 about 1.2 times as long as article-1, with one simple seta medially and one plumose and five simple setae distally; exopod biarticulate, article-1 about 0.5 times as long as basal article, with one simple seta distally; article-2 about 0.1 times as long as article-1, with one very long simple seta distally.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF9B3A76FF58272C394B5011" blockId="17.[151,1437,152,755]" box="[199,1355,513,540]" pageId="17" pageNumber="478">
|
||
Female
|
||
<typeStatus id="2222BE89FF9B3A76FEBE272C3D8C5011" box="[289,396,513,539]" pageId="17" pageNumber="478" type="paratype">paratypes</typeStatus>
|
||
<materialsCitation id="4DF10A76FF9B3A76FE0C272C3EE45011" ID-GBIF-Occurrence="2592941901" box="[403,740,513,540]" collectionCode="ZRC" pageId="17" pageNumber="478" specimenCode="ZRC 2020.0163" specimenCount="1">
|
||
<specimenCode id="AD3FA850FF9B3A76FE0C272C3E475011" box="[403,583,513,539]" collectionCode="ZRC" country="Singapore" httpUri="http://grbio.org/cool/16z4-1tbx" name="Zoological Reference Collection, National University of Singapore" pageId="17" pageNumber="478">ZRC 2020.0163</specimenCode>
|
||
(
|
||
<figureCitation id="65A21CAEFF9B3A76FDC8272C3EAC5016" box="[599,684,513,540]" captionStart="FIGURE 6" captionStartId="14.[151,250,1934,1959]" captionTargetBox="[193,1392,189,1900]" captionTargetId="figure@14.[183,1404,181,1909]" captionTargetPageId="14" captionText="FIGURE 6. Portaratrum birdi n. sp. OMS exploratory area, Clarion-Clipperton Fracture Zone. (A, C–F) Holotype female (ZRC 2020.0162) and (B) paratype female (ZRC 2020.0163): habitus, (A) dorsal and (B) lateral views; (C) pleonite-5, pleotelson and uropod, lateral; (D) ventral spur on pleonite-5; (E) antennule; (F) antenna. Scale bars: 1 mm for (A, B); 100 µm for (C–F)." figureDoi="http://doi.org/10.5281/zenodo.3734687" httpUri="https://zenodo.org/record/3734687/files/figure.png" pageId="17" pageNumber="478">Fig. 6B</figureCitation>
|
||
) and
|
||
</materialsCitation>
|
||
<materialsCitation id="4DF10A76FF9B3A76FD74272C39475011" ID-GBIF-Occurrence="2592941904" box="[747,1351,513,539]" collectionCode="ZRC" pageId="17" pageNumber="478" specimenCode="ZRC 2020.0164" specimenCount="1" typeStatus="holotype">
|
||
<specimenCode id="AD3FA850FF9B3A76FD74272C3FA05011" box="[747,928,513,539]" collectionCode="ZRC" country="Singapore" httpUri="http://grbio.org/cool/16z4-1tbx" name="Zoological Reference Collection, National University of Singapore" pageId="17" pageNumber="478">ZRC 2020.0164</specimenCode>
|
||
(
|
||
<figureCitation id="65A21CAEFF9B3A76FC30272C38045011" box="[943,1028,513,539]" captionStart="FIGURE 10" captionStartId="18.[151,250,1972,1997]" captionTargetBox="[172,1415,957,1947]" captionTargetId="figure@18.[172,1415,957,1947]" captionTargetPageId="18" captionText="FIGURE 10. Portaratrum birdi n. sp. Paratype female (ZRC 2020.0164). Confocal laser scanning microscopy images of habitus ventral with insets highlighting article-1 of pleopod exopods and fusion line of antennae. Scale bars: 200 µm." figureDoi="http://doi.org/10.5281/zenodo.3734695" httpUri="https://zenodo.org/record/3734695/files/figure.png" pageId="17" pageNumber="478">Fig. 10</figureCitation>
|
||
): Similar to female
|
||
<typeStatus id="2222BE89FF9B3A76FB7E272C39475011" box="[1249,1351,513,539]" pageId="17" pageNumber="478" type="holotype">holotype</typeStatus>
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="B58353A0FF9B3A76FF5827083D21508D" pageId="17" pageNumber="478" type="etymology">
|
||
<paragraph id="FD26002BFF9B3A76FF5827083D21508D" blockId="17.[151,1437,152,755]" pageId="17" pageNumber="478">
|
||
<emphasis id="CFEDDC39FF9B3A76FF5827083D4E5035" bold="true" box="[199,334,549,575]" pageId="17" pageNumber="478">Etymology.</emphasis>
|
||
This species is named in gratitude of Dr. Graham J. Bird for his prompt replies to our questions on tanaidacean taxonomy. Dr. Bird is a leading tanaidacean expert and his extensive work includes
|
||
<taxonomicName id="3A997BA8FF9B3A76FB412767396C5069" authorityName="Guerrero-Kommritz" authorityYear="2003" box="[1246,1388,586,611]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="17" pageNumber="478" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="CFEDDC39FF9B3A76FB412767396C5069" box="[1246,1388,586,611]" italics="true" pageId="17" pageNumber="478">Portaratrum</emphasis>
|
||
</taxonomicName>
|
||
and related taxa.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="B58353A0FF9B3A76FF5827BC393B50A1" box="[199,1339,656,683]" pageId="17" pageNumber="478" type="materials_examined">
|
||
<paragraph id="FD26002BFF9B3A76FF5827BC393B50A1" blockId="17.[151,1437,152,755]" box="[199,1339,656,683]" pageId="17" pageNumber="478">
|
||
<emphasis id="CFEDDC39FF9B3A76FF5827BC3D6650A1" bold="true" box="[199,358,656,683]" pageId="17" pageNumber="478">Type locality.</emphasis>
|
||
Station S08 of OMS exploratory area at the Clarion
|
||
<collectingCountry id="858E40BBFF9B3A76FC2B27BC382C50A1" box="[948,1068,657,683]" name="Clipperton Island" pageId="17" pageNumber="478">Clipperton</collectingCountry>
|
||
Fracture Zone,
|
||
<quantity id="3A61ADCEFF9B3A76FB4027BC393750A1" box="[1247,1335,657,683]" metricMagnitude="3" metricUnit="m" metricValue="4.172" pageId="17" pageNumber="478" unit="m" value="4172.0">4172 m</quantity>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="B58353A0FF9B3A76FF58279938A750F9" pageId="17" pageNumber="478" type="distribution">
|
||
<paragraph id="FD26002BFF9B3A76FF58279938A750F9" blockId="17.[151,1437,152,755]" pageId="17" pageNumber="478">
|
||
<emphasis id="CFEDDC39FF9B3A76FF5827993DF450C5" bold="true" box="[199,500,692,719]" pageId="17" pageNumber="478">Distribution and habitat.</emphasis>
|
||
Two stations (S08 and S11) of OMS at CCFZ,
|
||
<quantity id="3A61ADCEFF9B3A76FB8D279838A950C5" box="[1042,1193,693,719]" metricMagnitude="3" metricUnit="m" metricValue="4.16" metricValueMax="4.172" metricValueMin="4.148" pageId="17" pageNumber="478" unit="m" value="4160.0" valueMax="4172.0" valueMin="4148.0">4148–4172m</quantity>
|
||
;
|
||
<quantity id="3A61ADCEFF9B3A76FB292799390A50C5" box="[1206,1290,692,719]" metricMagnitude="-2" metricUnit="m" metricValue="2.5" metricValueMax="5.0" metricValueMin="0.0" pageId="17" pageNumber="478" unit="cm" value="2.5" valueMax="5.0" valueMin="0.0">0–5 cm</quantity>
|
||
layer of soft sediment with shear strength of
|
||
<geoCoordinate id="98AD66ECFF9B3A76FE6127F53E3C50F9" box="[510,572,728,755]" degrees="0.625" direction="north" orientation="latitude" pageId="17" pageNumber="478" precision="55" value="0.625">0.625</geoCoordinate>
|
||
<geoCoordinate id="98AD66ECFF9B3A76FDA327F53E8950F9" box="[572,649,728,755]" degrees="2.250" direction="west" orientation="longitude" pageId="17" pageNumber="478" precision="55" value="-2.25">–2.250</geoCoordinate>
|
||
kPa and surface nodule coverage of 0.0–23.8%.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="A9E650A3FF9B3A76FF0823CF38A754F1" ID-DOI="http://doi.org/10.5281/zenodo.3734693" ID-Zenodo-Dep="3734693" box="[151,1191,1762,1787]" httpUri="https://zenodo.org/record/3734693/files/figure.png" pageId="17" pageNumber="478" startId="17.[151,250,1762,1787]" targetBox="[203,1390,784,1728]" targetPageId="17">
|
||
<paragraph id="FD26002BFF9B3A76FF0823CF38A754F1" blockId="17.[151,1191,1762,1787]" box="[151,1191,1762,1787]" pageId="17" pageNumber="478">
|
||
<emphasis id="CFEDDC39FF9B3A76FF0823CF3D1354F1" bold="true" box="[151,275,1762,1787]" pageId="17" pageNumber="478">FIGURE 9.</emphasis>
|
||
<taxonomicName id="3A997BA8FF9B3A76FE8623C93DD054F1" authority="Chim & Tong, 2020" authorityName="Chim & Tong" authorityYear="2020" box="[281,464,1763,1787]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="17" pageNumber="478" phylum="Arthropoda" rank="species" species="birdi" status="sp. nov.">
|
||
<emphasis id="CFEDDC39FF9B3A76FE8623C93DD054F1" box="[281,464,1763,1787]" italics="true" pageId="17" pageNumber="478">Portaratrum birdi</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="CFEDDC39FF9B3A76FE4923CE3E1054F1" bold="true" box="[470,528,1763,1787]" pageId="17" pageNumber="478">
|
||
<taxonomicNameLabel id="D4DE6142FF9B3A76FE4923CE3E1054F1" box="[470,528,1763,1787]" pageId="17" pageNumber="478" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Holotype female. (A) pleopod-1; (B) uropod. Scale bar: 100 µm.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="B58353A0FF9B3A75FF5822073D5D51AD" lastPageId="18" lastPageNumber="479" pageId="17" pageNumber="478" type="discussion">
|
||
<paragraph id="FD26002BFF9B3A75FF5822073F97536D" blockId="17.[151,1437,1833,2040]" lastBlockId="18.[151,1437,153,935]" lastPageId="18" lastPageNumber="479" pageId="17" pageNumber="478">
|
||
<emphasis id="CFEDDC39FF9B3A76FF5822073D3B554E" bold="true" box="[199,315,1834,1860]" pageId="17" pageNumber="478">Remarks.</emphasis>
|
||
<taxonomicName id="3A997BA8FF9B3A76FED922073E145549" authority="Chim & Tong, 2020" authorityName="Chim & Tong" authorityYear="2020" box="[326,532,1833,1859]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="17" pageNumber="478" phylum="Arthropoda" rank="species" species="birdi" status="sp. nov.">
|
||
<emphasis id="CFEDDC39FF9B3A76FED922073E145549" box="[326,532,1833,1859]" italics="true" pageId="17" pageNumber="478">Portaratrum birdi</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="CFEDDC39FF9B3A76FD8022073E62554E" bold="true" box="[543,610,1834,1860]" pageId="17" pageNumber="478">
|
||
<taxonomicNameLabel id="D4DE6142FF9B3A76FD8022073E62554E" box="[543,610,1834,1860]" pageId="17" pageNumber="478" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
is the fourth species of the genus. It conforms to the genus diagnosis modified by
|
||
<bibRefCitation id="99087DDAFF9B3A76FEB522603DB1556D" author="Bird, G. J." box="[298,433,1869,1895]" pageId="17" pageNumber="478" pagination="1771 - 1815" refId="ref9177" refString="Bird, G. J. (2014) Tanaidacea (Crustacea: Peracarida) of the North-east Atlantic: the genera Leptognathioides and Portaratrum of the ' Atlantic Margin'. Journal of Natural History, 48 (29 - 30), 1771 - 1815. https: // doi. org / 10.1080 / 00222933.2014.896489" type="journal article" year="2014">Bird (2014)</bibRefCitation>
|
||
, except that its pleotelson is not narrower at join with pleonite-5. The current species is extremely similar to
|
||
<taxonomicName id="3A997BA8FF9B3A76FEE1225F3E765581" authority="Bird, 2014" authorityName="Bird" authorityYear="2014" box="[382,630,1905,1931]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="17" pageNumber="478" phylum="Arthropoda" rank="species" species="holdichi">
|
||
<emphasis id="CFEDDC39FF9B3A76FEE1225F3DF55581" box="[382,501,1905,1931]" italics="true" pageId="17" pageNumber="478">P. holdichi</emphasis>
|
||
<bibRefCitation id="99087DDAFF9B3A76FE63225C3E765581" author="Bird, G. J." box="[508,630,1905,1931]" pageId="17" pageNumber="478" pagination="1771 - 1815" refId="ref9177" refString="Bird, G. J. (2014) Tanaidacea (Crustacea: Peracarida) of the North-east Atlantic: the genera Leptognathioides and Portaratrum of the ' Atlantic Margin'. Journal of Natural History, 48 (29 - 30), 1771 - 1815. https: // doi. org / 10.1080 / 00222933.2014.896489" type="journal article" year="2014">Bird, 2014</bibRefCitation>
|
||
</taxonomicName>
|
||
, especially in having (1) one long seta on maxilliped palp article-2 outer margin; (2) one large tooth on chela fixed finger cutting edge; (3) two setae on pereopods 4–6 ischium; (4) biarticulate uropod exopod with cap-like article-2 (
|
||
<tableCitation id="B01B3590FF9B3A76FD1D22943ED955D9" box="[642,729,1977,2003]" captionStart="TABLE 3" captionStartId="20.[151,239,467,493]" captionText="TABLE 3. Comparison of four species in the genus Portaratrum." pageId="17" pageNumber="478">Table 3</tableCitation>
|
||
). The major characters distinguishing
|
||
<taxonomicName id="3A997BA8FF9B3A76FB13229738DD55D9" authorityName="Chim & Tong" authorityYear="2020" box="[1164,1245,1977,2003]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="17" pageNumber="478" phylum="Arthropoda" rank="species" species="birdi">
|
||
<emphasis id="CFEDDC39FF9B3A76FB13229738DD55D9" box="[1164,1245,1977,2003]" italics="true" pageId="17" pageNumber="478">P. birdi</emphasis>
|
||
</taxonomicName>
|
||
from
|
||
<taxonomicName id="3A997BA8FF9B3A76FABB2297399C55D9" authorityName="Bird" authorityYear="2014" box="[1316,1436,1977,2003]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="17" pageNumber="478" phylum="Arthropoda" rank="species" species="holdichi">
|
||
<emphasis id="CFEDDC39FF9B3A76FABB2297399C55D9" box="[1316,1436,1977,2003]" italics="true" pageId="17" pageNumber="478">P. holdichi</emphasis>
|
||
</taxonomicName>
|
||
include the (1) labium with spiniform setae; (2) pereopods merus and carpus with spiniform setae mostly extend- ing beyond half the length of succeeding article; (3) pereopods 1–3 with dorsodistal simple seta on carpus instead of propodus; (4) pereopod-4 propodus with one plumose seta dorsally; (5) pleopod exopod with two articles. The other differences between these two species involve the presence of minute setae and microtrichia, which can be easily overlooked under light microscopy. Despite their morphological similarities,
|
||
<taxonomicName id="3A997BA8FF983A75FBDD242B38BA5315" authorityName="Bird" authorityYear="2014" box="[1090,1210,261,287]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="species" species="holdichi">
|
||
<emphasis id="CFEDDC39FF983A75FBDD242B38BA5315" box="[1090,1210,261,287]" italics="true" pageId="18" pageNumber="479">P. holdichi</emphasis>
|
||
</taxonomicName>
|
||
was described from the ‘Northern Atlantic Boreal’ lower bathyal province, which is far removed from the ‘Equatorial Pacific’ abyssal province where
|
||
<taxonomicName id="3A997BA8FF983A75FED324633D9C536D" authorityName="Chim & Tong" authorityYear="2020" box="[332,412,333,359]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="species" species="birdi">
|
||
<emphasis id="CFEDDC39FF983A75FED324633D9C536D" box="[332,412,333,359]" italics="true" pageId="18" pageNumber="479">P. birdi</emphasis>
|
||
</taxonomicName>
|
||
was collected (
|
||
<bibRefCitation id="99087DDAFF983A75FDD624603F2B536D" author="Watling, L. & Guinotte, J. & Clark, M. R. & Smith C. R." box="[585,811,333,359]" pageId="18" pageNumber="479" pagination="91 - 112" refId="ref10815" refString="Watling, L., Guinotte, J., Clark, M. R. & Smith C. R. (2013) A proposed biogeography of the deep ocean floor. Progress in Oceanography, 111, 91 - 112. https: // doi. org / 10.1016 / j. pocean. 2012.11.003" type="journal article" year="2013">
|
||
Watling
|
||
<emphasis id="CFEDDC39FF983A75FD3524633EE3536D" box="[682,739,333,359]" italics="true" pageId="18" pageNumber="479">et al.</emphasis>
|
||
, 2013
|
||
</bibRefCitation>
|
||
;
|
||
<figureCitation id="65A21CAEFF983A75FCA824603F89536D" box="[823,905,333,359]" captionStart="FIGURE 12" captionStartId="22.[151,250,772,797]" captionTargetBox="[163,1436,181,744]" captionTargetId="figure@22.[151,1436,181,747]" captionTargetPageId="22" captionText="FIGURE 12. Type localities of Portaratrum species. (A) P. afer; (B) P. fascinatus; (C) P. holdichi; (D) P. birdi n. sp." figureDoi="http://doi.org/10.5281/zenodo.3734699" httpUri="https://zenodo.org/record/3734699/files/figure.png" pageId="18" pageNumber="479">Fig. 12</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF983A75FF50245C3870508D" blockId="18.[151,1437,153,935]" pageId="18" pageNumber="479">
|
||
Amongst other members of the genus
|
||
<taxonomicName id="3A997BA8FF983A75FD18245F3F155381" authorityName="Guerrero-Kommritz" authorityYear="2003" box="[647,789,370,395]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="CFEDDC39FF983A75FD18245F3F155381" box="[647,789,370,395]" italics="true" pageId="18" pageNumber="479">Portaratrum</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="3A997BA8FF983A75FCBA245F3FB45381" authorityName="Guerrero-Kommritz" authorityYear="2003" box="[805,948,369,395]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="species" species="fascinatus">
|
||
<emphasis id="CFEDDC39FF983A75FCBA245F3FB45381" box="[805,948,369,395]" italics="true" pageId="18" pageNumber="479">P. fascinatus</emphasis>
|
||
</taxonomicName>
|
||
was first described from the neighbouring abyssal province ‘
|
||
<collectingCountry id="858E40BBFF983A75FEFD24B83DA653A5" box="[354,422,405,431]" name="Chile" pageId="18" pageNumber="479">Chile</collectingCountry>
|
||
,
|
||
<collectingCountry id="858E40BBFF983A75FE2C24B83DE653A5" box="[435,486,405,431]" name="Peru" pageId="18" pageNumber="479">Peru</collectingCountry>
|
||
and
|
||
<collectingCountry id="858E40BBFF983A75FDBE24B83E9A53A5" box="[545,666,405,431]" name="Guatemala" pageId="18" pageNumber="479">Guatemala</collectingCountry>
|
||
Basins’. Interestingly, these two species are also the most different from each other, most notably
|
||
<taxonomicName id="3A997BA8FF983A75FE6B24973E8253D9" authorityName="Guerrero-Kommritz" authorityYear="2003" box="[500,642,441,467]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="species" species="fascinatus">
|
||
<emphasis id="CFEDDC39FF983A75FE6B24973E8253D9" box="[500,642,441,467]" italics="true" pageId="18" pageNumber="479">P. fascinatus</emphasis>
|
||
</taxonomicName>
|
||
in having (1) antenna article-2 wider than long and bearing one spine and several setules; (2) antenna article-3 naked; (3) one long seta on maxilliped palp article-1 outer margin; (4) pereopods merus and carpus with most spiniform setae less than half the length of the succeeding article; (5) one seta on pereopods 4–6 ischium; (6) several small teeth on chela fixed finger cutting edge; (7) indistinct pereopod coxa; (8) pereopod-1 carpus bearing one spiniform seta; (9) pereopods 4–6 dactylus without spinules ventrally; (10) pereopod-6 propodus with only two dorsodistal setae; (11) uniarticulate uropod exopod.
|
||
</paragraph>
|
||
<paragraph id="FD26002BFF983A75FF5827BC3D5D51AD" blockId="18.[151,1437,153,935]" pageId="18" pageNumber="479">
|
||
The unusual cap-like article-2 of the uropod exopod is also present in
|
||
<taxonomicName id="3A997BA8FF983A75FC6F27BF389450A1" authorityName="Bird" authorityYear="2014" box="[1008,1172,657,683]" class="Malacostraca" genus="Leptognathioides" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="species" species="biarticulata">
|
||
<emphasis id="CFEDDC39FF983A75FC6F27BF389450A1" box="[1008,1172,657,683]" italics="true" pageId="18" pageNumber="479">L. biarticulata</emphasis>
|
||
</taxonomicName>
|
||
, and this characteristic was singled out by
|
||
<bibRefCitation id="99087DDAFF983A75FEE527983E0150C5" author="Bird, G. J." box="[378,513,693,719]" pageId="18" pageNumber="479" pagination="1771 - 1815" refId="ref9177" refString="Bird, G. J. (2014) Tanaidacea (Crustacea: Peracarida) of the North-east Atlantic: the genera Leptognathioides and Portaratrum of the ' Atlantic Margin'. Journal of Natural History, 48 (29 - 30), 1771 - 1815. https: // doi. org / 10.1080 / 00222933.2014.896489" type="journal article" year="2014">Bird (2014)</bibRefCitation>
|
||
as evidence for the close relationship between the genera
|
||
<taxonomicName id="3A997BA8FF983A75FB372798396A50C5" authorityName="Bird & Holdich" authorityYear="1984" box="[1192,1386,693,719]" class="Malacostraca" genus="Leptognathioides" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="CFEDDC39FF983A75FB372798396A50C5" box="[1192,1386,693,719]" italics="true" pageId="18" pageNumber="479">Leptognathioides</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="3A997BA8FF983A75FF0827F73D2550F9" authorityName="Guerrero-Kommritz" authorityYear="2003" box="[151,293,730,755]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="CFEDDC39FF983A75FF0827F73D2550F9" box="[151,293,730,755]" italics="true" pageId="18" pageNumber="479">Portaratrum</emphasis>
|
||
</taxonomicName>
|
||
. Furthermore,
|
||
<taxonomicName id="3A997BA8FF983A75FE5427F73E1B50F9" authorityName="Chim & Tong" authorityYear="2020" box="[459,539,729,755]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="species" species="birdi">
|
||
<emphasis id="CFEDDC39FF983A75FE5427F73E1B50F9" box="[459,539,729,755]" italics="true" pageId="18" pageNumber="479">P. birdi</emphasis>
|
||
</taxonomicName>
|
||
shares some characters with
|
||
<taxonomicName id="3A997BA8FF983A75FCFF27F7380150F9" authorityName="Bird" authorityYear="2014" box="[864,1025,729,755]" class="Malacostraca" genus="Leptognathioides" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="species" species="biarticulata">
|
||
<emphasis id="CFEDDC39FF983A75FCFF27F7380150F9" box="[864,1025,729,755]" italics="true" pageId="18" pageNumber="479">L. biarticulata</emphasis>
|
||
</taxonomicName>
|
||
that are absent in congeneric species in
|
||
<taxonomicName id="3A997BA8FF983A75FF2927D33D44511D" authorityName="Guerrero-Kommritz" authorityYear="2003" box="[182,324,766,791]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="CFEDDC39FF983A75FF2927D33D44511D" box="[182,324,766,791]" italics="true" pageId="18" pageNumber="479">Portaratrum</emphasis>
|
||
</taxonomicName>
|
||
, and these include (1) pleotelson not narrower at join with pleonite-5; (2) maxilliped endite with two setae distally; (3) pereopod-4 propodus with one plumose seta dorsally; (4) pleopod exopod with two articles. It is probable that
|
||
<taxonomicName id="3A997BA8FF983A75FEFC266B3DF15155" authorityName="Guerrero-Kommritz" authorityYear="2003" box="[355,497,838,863]" class="Malacostraca" genus="Portaratrum" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="CFEDDC39FF983A75FEFC266B3DF15155" box="[355,497,838,863]" italics="true" pageId="18" pageNumber="479">Portaratrum</emphasis>
|
||
</taxonomicName>
|
||
is very closely related to
|
||
<taxonomicName id="3A997BA8FF983A75FC8F26683FD25155" authorityName="Bird & Holdich" authorityYear="1984" box="[784,978,837,863]" class="Malacostraca" genus="Leptognathioides" kingdom="Animalia" order="Tanaidacea" pageId="18" pageNumber="479" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="CFEDDC39FF983A75FC8F26683FD25155" box="[784,978,837,863]" italics="true" pageId="18" pageNumber="479">Leptognathioides</emphasis>
|
||
</taxonomicName>
|
||
and most likely belong to the same family, but it can be easily distinguished by the large ventrally-directed spur on pleonite-5 and the small cheliped basis posterior process.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |