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<document id="4E4A9DA6D81D62C4148CE2685C3AB426" ID-DOI="10.11646/zootaxa.5477.3.2" ID-ISSN="1175-5326" ID-Zenodo-Dep="12732651" ID-ZooBank="2C5FA9C0-6462-480A-9AB8-073ED54708F2" IM.bibliography_approvedBy="guilherme" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="guilherme" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1720788909323" checkinUser="plazi" docAuthor="Poore, Gary C. B. &amp; Black, Jay R." docDate="2024" docId="039A405BFFEA3151CADF627E2855FD5A" docLanguage="en" docName="zootaxa.5477.3.2.pdf" docOrigin="Zootaxa 5477 (3)" docSource="http://dx.doi.org/10.11646/zootaxa.5477.3.2" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Fissarcturus brandtae Poore &amp; Black, 2024, sp. nov." docType="treatment" docUuid="91DCA0E4-C415-424E-9758-61CC1CEDA022" docUuidSource="ZooBank" docVersion="3" lastPageNumber="302" masterDocId="FFA33823FFEB3156CA486721291FFFF3" masterDocTitle="Four new species of Valvifera (Crustacea: Isopoda) from ANDEEP cruises in the Weddell Sea" masterLastPageNumber="314" masterPageNumber="295" pageNumber="296" updateTime="1721056973333" updateUser="guilherme" zenodo-license-document="CLOSED">
<mods:mods id="6EB528D66EDAC7422B7F5E1459524444" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="B1041E4796227A980051D3E594DECA56">
<mods:title id="558F5C8A538E4DD495B879361E6E3328">Four new species of Valvifera (Crustacea: Isopoda) from ANDEEP cruises in the Weddell Sea</mods:title>
</mods:titleInfo>
<mods:name id="261013B771823F34DA15B41526248F01" type="personal">
<mods:role id="4B6153B890263ED2A42A245936B87462">
<mods:roleTerm id="9197C1B18E8BD64D817A55DC8C08A74C">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="529D8982E81FA860A4DFE1B9736A3FA9">Poore, Gary C. B.</mods:namePart>
<mods:affiliation id="D5093F083F2C73AE8F70127DE11B3B05">Museums Victoria, GPO Box 666, Melbourne, Vic. 3001, Australia,</mods:affiliation>
</mods:name>
<mods:name id="37B5D23E54C8C7BD9E3AA5467C4816C0" type="personal">
<mods:role id="694BD4A0019C076958E4CE4EB715FEBF">
<mods:roleTerm id="028F76337A074364FCDFDD7DDB282FB0">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="E1CFFA7A13A781D694A98B35D9A89981">Black, Jay R.</mods:namePart>
<mods:affiliation id="18478B188816E2DA7863B891D4008FA2">Department of Geography, Earth and Atmospheric Sciences, The University of Melbourne, Vic. 3010, Australia &amp; Melbourne Trace Analysis for Chemical, Earth and Environmental Sciences (TrACEES) Platform, University of Melbourne, Vic. 3010, Australia</mods:affiliation>
</mods:name>
<mods:typeOfResource id="87E2C5ED6FDD549AAA48417752D41E9D">text</mods:typeOfResource>
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<mods:titleInfo id="E0D6D4B1D97FC7D1576508F6EFB31602">
<mods:title id="FFED15A58E78B4314CB8EFE9668D2E08">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="BB6884393E3D8AB8924943E2441EED48">
<mods:date id="959C93CF33EBCA1432C8B8D49D1CC5F7">2024</mods:date>
<mods:detail id="C0DFC16F998250898193D9D9B15B231D" type="pubDate">
<mods:number id="01CA2EE352D5C568F7A49B813068C5A6">2024-07-09</mods:number>
</mods:detail>
<mods:detail id="4B657D4D9CBE6043437B3331E79B41ED" type="volume">
<mods:number id="DFDE87BD2E2EF11600D803D09E734981">5477</mods:number>
</mods:detail>
<mods:detail id="96F157B6F8DC87D1876E7D3D0A0A5C35" type="issue">
<mods:number id="49204EA6CFBBBCDF41ED41452CF112BF">3</mods:number>
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<mods:start id="24BBEE99ED8183161074B380A3B9B116">295</mods:start>
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<mods:location id="BC64CA545E886645630251D7C6B7CFAE">
<mods:url id="75C21AFA4375875D44A844D56C1B236C">http://dx.doi.org/10.11646/zootaxa.5477.3.2</mods:url>
</mods:location>
<mods:classification id="06A4284677D62BD0FC097AF2786BDA40">journal article</mods:classification>
<mods:identifier id="7D4D04908B1EC796AD73A38134E45F47" type="DOI">10.11646/zootaxa.5477.3.2</mods:identifier>
<mods:identifier id="57C52A45EAB93882419A398DADE26F6E" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="D0DF2C20967F9324614A4F51D8FDF579" type="Zenodo-Dep">12732651</mods:identifier>
<mods:identifier id="6A656E23FD4A1413C3026B429D3A554E" type="ZooBank">2C5FA9C0-6462-480A-9AB8-073ED54708F2</mods:identifier>
</mods:mods>
<treatment id="039A405BFFEA3151CADF627E2855FD5A" ID-DOI="http://doi.org/10.5281/zenodo.12732665" ID-Zenodo-Dep="12732665" LSID="urn:lsid:zoobank.org:act:91DCA0E4-C415-424E-9758-61CC1CEDA022" httpUri="http://treatment.plazi.org/id/039A405BFFEA3151CADF627E2855FD5A" lastPageId="7" lastPageNumber="302" pageId="1" pageNumber="296">
<subSubSection id="C329A2C6FFEA3157CADF627E2B17FA8A" box="[151,520,1374,1401]" pageId="1" pageNumber="296" type="nomenclature">
<paragraph id="8B8CF14DFFEA3157CADF627E2B17FA8A" blockId="1.[151,520,1374,1437]" box="[151,520,1374,1401]" pageId="1" pageNumber="296">
<heading id="D0C44621FFEA3157CADF627E2B17FA8A" bold="true" box="[151,520,1374,1401]" fontSize="11" level="1" pageId="1" pageNumber="296" reason="1">
<emphasis id="B9472D5FFFEA3157CADF627E2B17FA8A" bold="true" box="[151,520,1374,1401]" pageId="1" pageNumber="296">
<taxonomicName id="4C338ACEFFEA3157CADF627E28BBFA8A" authorityName="Poore &amp; Black" authorityYear="2024" box="[151,420,1374,1401]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="1" pageNumber="296" phylum="Arthropoda" rank="species" species="brandtae" status="sp. nov.">
<emphasis id="B9472D5FFFEA3157CADF627E28BBFA8A" bold="true" box="[151,420,1374,1401]" italics="true" pageId="1" pageNumber="296">Fissarcturus brandtae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2749024FFEA3157CBE3627E2B17FA8A" box="[427,520,1375,1401]" pageId="1" pageNumber="296" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C329A2C6FFEA3157CADF62A2287CFA6E" box="[151,355,1410,1437]" pageId="1" pageNumber="296" type="description">
<paragraph id="8B8CF14DFFEA3157CADF62A2287CFA6E" blockId="1.[151,520,1374,1437]" box="[151,355,1410,1437]" pageId="1" pageNumber="296">
(
<figureCitation id="1308EDC8FFEA3157CAD762A22845FA6E" box="[159,346,1410,1437]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStart-4="FIGURE 5" captionStartId-0="2.[152,255,921,945]" captionStartId-1="3.[151,250,1751,1775]" captionStartId-2="4.[151,250,1794,1818]" captionStartId-3="5.[151,250,1948,1972]" captionStartId-4="6.[151,250,1118,1142]" captionTargetBox-0="[151,1435,181,897]" captionTargetBox-1="[151,1435,181,1727]" captionTargetBox-2="[151,1435,525,1771]" captionTargetBox-3="[151,1435,993,1925]" captionTargetBox-4="[151,1435,181,1094]" captionTargetId-0="figure-34@2.[151,1435,181,897]" captionTargetId-1="figure-21@3.[151,1435,181,1727]" captionTargetId-2="figure-221@4.[151,1435,525,1771]" captionTargetId-3="figure-427@5.[151,1435,993,1925]" captionTargetId-4="figure-34@6.[151,1435,181,1094]" captionTargetPageId-0="2" captionTargetPageId-1="3" captionTargetPageId-2="4" captionTargetPageId-3="5" captionTargetPageId-4="6" captionText-0="FIGURE 1. Fissarcturus brandtae sp. nov. Dorsal and lateral micro-CT scans. a, b, ZMH K-65081 (paratype ovigerous female, 7.1 mm); c, d, ZMH K-65086 (paratype male, 5.1 mm). Scale bar = 5 mm." captionText-1="FIGURE 2. Fissarcturus brandtae sp. nov. Photomicrographs. a, ZMH K-65081 (paratype ovigerous female, 7.1 mm). b, ZMH K-65086 (paratype male, 5.1 mm; right uropod removed). Scale bars = 2 mm." captionText-2="FIGURE 3. Fissarcturus brandtae sp. nov. ZMH K-65080 (paratype ovigerous female, 10.3 mm). a, b, dorsal and lateral habitus; c, anterolateral head-pereonite 1, left antennula, antenna (lateral-oblique dorsal view); d, labrum, ventral clypeus, mouthfield, left side of head, antennal peduncle articles 1–3 (ventral); e, labrum, ventral clypeus, upcurved dorsal clypeus (dashed line), mandible, left side of head, antennal peduncle article 1 (obscuring dorsal clypeus; lateral view); f, left pereopodal coxae 3, 4 (c3, c4, ventral, articulation of bases shaded); g, detail of dorsal spines, pereonite 5; h, left coxae 6, 7 (pereopodal bases removed), median profile of pereonites 6, 7, pleonite 1 (lateral view); i, left uropod; j, left uropodal rami (internal). Scale bars = 1 mm." captionText-3="FIGURE 4. Fissarcturus brandtae sp. nov. ZMH K-65080 (ovigerous female, 10.3 mm). a, maxilliped; b, maxilliped endite detail; c–i, pereopods 1–7; j, k, pleopods 1, 2. Scale bars = 1 mm." captionText-4="FIGURE 5. Fissarcturus brandtae sp. nov. ZMH K-65085 (paratype male, 6.5 mm). a, b, dorsal and lateral habitus; c, penial plate; d, left pleopod 1 (posterior face, endopod broken); e, detail of pleopod 1 endopod apex; e, right pleopod 2 (marginal setae not shown). Scale bars = 1 mm." figureDoi-0="http://doi.org/10.5281/zenodo.12732653" figureDoi-1="http://doi.org/10.5281/zenodo.12732655" figureDoi-2="http://doi.org/10.5281/zenodo.12732659" figureDoi-3="http://doi.org/10.5281/zenodo.12732661" figureDoi-4="http://doi.org/10.5281/zenodo.12732663" httpUri-0="https://zenodo.org/record/12732653/files/figure.png" httpUri-1="https://zenodo.org/record/12732655/files/figure.png" httpUri-2="https://zenodo.org/record/12732659/files/figure.png" httpUri-3="https://zenodo.org/record/12732661/files/figure.png" httpUri-4="https://zenodo.org/record/12732663/files/figure.png" pageId="1" pageNumber="296">Figs 1–5, S1, S2</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C329A2C6FFEA3157CADF62EB2DEEF94E" pageId="1" pageNumber="296" type="materials_examined">
<paragraph id="8B8CF14DFFEA3157CADF62EB29E1F9DE" blockId="1.[151,1437,1482,2013]" pageId="1" pageNumber="296">
<emphasis id="B9472D5FFFEA3157CADF62EB289BFA17" bold="true" box="[151,388,1482,1508]" pageId="1" pageNumber="296">Material examined:</emphasis>
<materialsCitation id="3B5BFB10FFEA3157CBC462EA29E1F9DE" collectingDate="2005-03-16" collectionCode="RV, ANDEEP, III, ZMH" elevation="1584" latitude="-62.772167" location="Powell Basin" longLatPrecision="10" longitude="-53.069" municipality="Powell Basin" pageId="1" pageNumber="296" specimenCode="ZMH K-65079" specimenCount="1" specimenCount-female="1" typeStatus="holotype">
<typeStatus id="54884FEFFFEA3157CBC462EA28E7FA16" box="[396,504,1483,1509]" pageId="1" pageNumber="296" type="holotype">Holotype</typeStatus>
. Weddell Sea,
<collectingMunicipality id="6BE86B37FFEA3157C8D762EA2A27FA16" box="[671,824,1483,1509]" pageId="1" pageNumber="296">Powell Basin</collectingMunicipality>
, 62°46.73’ S–62°46.33’ S, 53°02.57’ W–53°04.14’ W,
<quantity id="4CCB5CA8FFEA3157CADF62CF29F1F9FA" box="[151,238,1518,1545]" metricMagnitude="3" metricUnit="m" metricValue="1.584" pageId="1" pageNumber="296" unit="m" value="1584.0">
<elevation id="001E167EFFEA3157CADF62CF29F1F9FA" box="[151,238,1518,1545]" metricMagnitude="3" metricUnit="m" metricValue="1.584" pageId="1" pageNumber="296" unit="m" value="1584.0">1584 m</elevation>
</quantity>
,
<date id="FF8DD78DFFEA3157CAB262CE2891F9FA" box="[250,398,1518,1545]" pageId="1" pageNumber="296" value="2005-03-16">
<collectingDate id="EFC92E65FFEA3157CAB262CE2891F9FA" box="[250,398,1518,1545]" pageId="1" pageNumber="296" value="2005-03-16">16 Mar 2005</collectingDate>
</date>
, epibenthic sled, RV
<emphasis id="B9472D5FFFEA3157C83362CE2BECF9FA" box="[635,755,1519,1545]" italics="true" pageId="1" pageNumber="296">Polarstern</emphasis>
(ANDEEP III stn 133-2),
<specimenCode id="DB955936FFEA3157CE5362CE2DDCF9FA" box="[1051,1219,1518,1545]" pageId="1" pageNumber="296">ZMH K-65079</specimenCode>
(ovigerous
<specimenCount id="9D353AC4FFEA3157CF0162CE2C87F9FA" box="[1353,1432,1519,1545]" pageId="1" pageNumber="296" type="female">female</specimenCount>
, 9.0 mm).
</materialsCitation>
</paragraph>
<paragraph id="8B8CF14DFFEA3157CA8F61162DEEF94E" blockId="1.[151,1437,1482,2013]" pageId="1" pageNumber="296">
<typeStatus id="54884FEFFFEA3157CA8F61162827F9A2" box="[199,312,1591,1617]" pageId="1" pageNumber="296" type="paratype">Paratypes</typeStatus>
. Collected with
<typeStatus id="54884FEFFFEA3157CBA361162B4FF9A2" box="[491,592,1591,1617]" pageId="1" pageNumber="296" type="holotype">holotype</typeStatus>
,
<collectionCode id="ED226988FFEA3157C81261162B87F9A2" box="[602,664,1591,1617]" country="Germany" httpUri="http://grbio.org/cool/kdnf-0379" name="Zoologisches Museum Hamburg" pageId="1" pageNumber="296" type="Museum">ZMH</collectionCode>
K-650080 (ovigerous female,
<quantity id="4CCB5CA8FFEA3157C9A661162D4AF9A2" box="[1006,1109,1591,1617]" metricMagnitude="-2" metricUnit="m" metricValue="1.03" pageId="1" pageNumber="296" unit="mm" value="10.3">10.3 mm</quantity>
);
<collectionCode id="ED226988FFEA3157CE2061162DB9F9A2" box="[1128,1190,1591,1617]" country="Germany" httpUri="http://grbio.org/cool/kdnf-0379" name="Zoologisches Museum Hamburg" pageId="1" pageNumber="296" type="Museum">ZMH</collectionCode>
K-65081 (female,
<quantity id="4CCB5CA8FFEA3157CF31611629D8F986" metricMagnitude="-3" metricUnit="m" metricValue="7.1" pageId="1" pageNumber="296" unit="mm" value="7.1">7.1 mm</quantity>
);
<collectionCode id="ED226988FFEA3157CA92617A2807F986" box="[218,280,1627,1653]" country="Germany" httpUri="http://grbio.org/cool/kdnf-0379" name="Zoologisches Museum Hamburg" pageId="1" pageNumber="296" type="Museum">ZMH</collectionCode>
K-65082 (female,
<quantity id="4CCB5CA8FFEA3157CBA4617A2B59F986" box="[492,582,1627,1653]" metricMagnitude="-3" metricUnit="m" metricValue="7.1" pageId="1" pageNumber="296" unit="mm" value="7.1">7.1 mm</quantity>
);
<collectionCode id="ED226988FFEA3157C811617A2B88F986" box="[601,663,1627,1653]" country="Germany" httpUri="http://grbio.org/cool/kdnf-0379" name="Zoologisches Museum Hamburg" pageId="1" pageNumber="296" type="Museum">ZMH</collectionCode>
K-65083 (8 mancas,
<quantity id="4CCB5CA8FFEA3157C9CF617A2D0EF986" box="[903,1041,1627,1653]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" metricValueMax="3.8" metricValueMin="2.2" pageId="1" pageNumber="296" unit="mm" value="3.0" valueMax="3.8" valueMin="2.2">2.2–3.8 mm</quantity>
);
<collectionCode id="ED226988FFEA3157CE6C617A2D7DF986" box="[1060,1122,1627,1653]" country="Germany" httpUri="http://grbio.org/cool/kdnf-0379" name="Zoologisches Museum Hamburg" pageId="1" pageNumber="296" type="Museum">ZMH</collectionCode>
K-65084 (female,
<quantity id="4CCB5CA8FFEA3157CF7E617A2C8FF986" box="[1334,1424,1627,1653]" metricMagnitude="-3" metricUnit="m" metricValue="4.8" pageId="1" pageNumber="296" unit="mm" value="4.8">4.8 mm</quantity>
);
<collectionCode id="ED226988FFEA3157CADF615E29CAF96A" box="[151,213,1663,1689]" country="Germany" httpUri="http://grbio.org/cool/kdnf-0379" name="Zoologisches Museum Hamburg" pageId="1" pageNumber="296" type="Museum">ZMH</collectionCode>
K-65085 (male,
<quantity id="4CCB5CA8FFEA3157CBD3615F28E8F96A" box="[411,503,1662,1689]" metricMagnitude="-3" metricUnit="m" metricValue="6.5" pageId="1" pageNumber="296" unit="mm" value="6.5">6.5 mm</quantity>
);
<materialsCitation id="3B5BFB10FFEA3157C845615E2D30F96A" box="[525,1071,1662,1689]" collectionCode="ZMH" pageId="1" pageNumber="296" specimenCount="2" specimenCount-male="2" typeStatus="paratype">
<collectionCode id="ED226988FFEA3157C845615E2B54F96A" box="[525,587,1663,1689]" collectionName="USA, Illinois, Chicago, Field Museum of Natural History (also used by Finnish Museum of Natural History)" country="Germany" httpUri="http://grbio.org/cool/kdnf-0379" name="Zoologisches Museum Hamburg" pageId="1" pageNumber="296" type="Museum">ZMH</collectionCode>
K-65086 (
<specimenCount id="9D353AC4FFEA3157C881615E2A3DF96A" box="[713,802,1663,1689]" count="2" pageId="1" pageNumber="296" type="male">2 males</specimenCount>
[1 damaged],
<quantity id="4CCB5CA8FFEA3157C982615F2D39F96A" box="[970,1062,1662,1689]" metricMagnitude="-3" metricUnit="m" metricValue="5.1" pageId="1" pageNumber="296" unit="mm" value="5.1">5.1 mm</quantity>
)
</materialsCitation>
;
<collectionCode id="ED226988FFEA3157CE74615E2D65F96A" box="[1084,1146,1663,1689]" country="Germany" httpUri="http://grbio.org/cool/kdnf-0379" name="Zoologisches Museum Hamburg" pageId="1" pageNumber="296" type="Museum">ZMH</collectionCode>
K-65087 (male posterior half);
<materialsCitation id="3B5BFB10FFEA3157CA9361822DF2F94E" box="[219,1261,1699,1725]" collectionCode="NMV" pageId="1" pageNumber="296" specimenCode="J76024" specimenCount="10" specimenCount-female="1" specimenCount-juvenile="7" specimenCount-male="2" typeStatus="paratype">
<collectionCode id="ED226988FFEA3157CA9361822803F94E" box="[219,284,1699,1725]" collectionName="NMV" country="Australia" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34978" lsid="urn:lsid:biocol.org:col:34978" name="Museum Victoria" pageId="1" pageNumber="296" type="Museum">NMV</collectionCode>
<specimenCode id="DB955936FFEA3157CB6B6182286BF94E" box="[291,372,1699,1725]" collectionCode="NMV" country="Australia" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34978" lsid="urn:lsid:biocol.org:col:34978" name="Museum Victoria" pageId="1" pageNumber="296" type="Museum">J76024</specimenCode>
(2 ovigerous
<specimenCount id="9D353AC4FFEA3157C84661822B77F94E" box="[526,616,1699,1725]" pageId="1" pageNumber="296" type="female">females</specimenCount>
,
<quantity id="4CCB5CA8FFEA3157C83B61822BD3F94E" box="[627,716,1699,1725]" metricMagnitude="-3" metricUnit="m" metricValue="7.4" pageId="1" pageNumber="296" unit="mm" value="7.4">7.4 mm</quantity>
;
<specimenCount id="9D353AC4FFEA3157C89061822A2EF94E" box="[728,817,1699,1725]" count="2" pageId="1" pageNumber="296" type="male">2 males</specimenCount>
, 6.8,
<quantity id="4CCB5CA8FFEA3157C92561822AD9F94E" box="[877,966,1699,1725]" metricMagnitude="-3" metricUnit="m" metricValue="7.1" pageId="1" pageNumber="296" unit="mm" value="7.1">7.1 mm</quantity>
;
<specimenCount id="9D353AC4FFEA3157C99961822D51F94E" box="[977,1102,1699,1725]" count="7" pageId="1" pageNumber="296" type="juvenile">7 juveniles</specimenCount>
,
<quantity id="4CCB5CA8FFEA3157CE1261822DFAF94E" box="[1114,1253,1699,1725]" metricMagnitude="-3" metricUnit="m" metricValue="3.55" metricValueMax="4.2" metricValueMin="2.9" pageId="1" pageNumber="296" unit="mm" value="3.55" valueMax="4.2" valueMin="2.9">2.9–4.2 mm</quantity>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C329A2C6FFEA3150CA8F61E72C5AF945" lastPageId="6" lastPageNumber="301" pageId="1" pageNumber="296" type="description">
<paragraph id="8B8CF14DFFEA3154CA8F61E72C4DFB05" blockId="1.[151,1437,1482,2013]" lastBlockId="2.[151,1437,1064,2026]" lastPageId="2" lastPageNumber="297" pageId="1" pageNumber="296">
<emphasis id="B9472D5FFFEA3157CA8F61E72B37F913" bold="true" box="[199,552,1734,1760]" pageId="1" pageNumber="296">Description of figured female:</emphasis>
<emphasis id="B9472D5FFFEA3157C86661E62BB3F913" box="[558,684,1735,1760]" italics="true" pageId="1" pageNumber="296">Integument</emphasis>
spinous and covered with minute prickles, spines variously tapering or club-shaped, also decorated along their length with sharp prickles. Front concave; eyes prominent, well pigmented.
<emphasis id="B9472D5FFFEA3157CADF602E29EFF8DA" box="[151,240,1807,1833]" italics="true" pageId="1" pageNumber="296">Labrum</emphasis>
with prominent triangular projection visible in lateral view plus upcurved projection between antennulae.
<emphasis id="B9472D5FFFEA3157CADF60122844F8BE" box="[151,347,1843,1869]" italics="true" pageId="1" pageNumber="296">Head-pereonite 1</emphasis>
with 7 or 8 pairs of dorsal spines (anterior pair thin, converging; second pair submedian, longest, diverging; third pair sublateral, smaller; fourth on right only; fifth pair submedial, thin; sixth pair stouter; seventh and eighth sublateral); with 5 or 6 lateral spines (first preocular, curved anteriorly; second post-subocular; major spine on pereonite 1almost as long as pereonite width; 3 narrow spines on ventral margin of pereonite 1).
<emphasis id="B9472D5FFFEA3157CF7860BE29BAF82E" italics="true" pageId="1" pageNumber="296">Pereonite 2</emphasis>
with anterior dorsal transverse row of 1 median spine, 4 pairs of spines; row near midpoint of sublateral longer spines with ancillary spines; posterior row of median spine plus 3 pairs of spines; lateral margins with 4 pairs of spines, second and third longest.
<emphasis id="B9472D5FFFE93154C85F636D2B85FB95" box="[535,666,1100,1126]" italics="true" pageId="2" pageNumber="297">Pereonite 3</emphasis>
widest, spination similar to pereonite 2.
<emphasis id="B9472D5FFFE93154CE3C636D2DE8FB95" box="[1140,1271,1100,1126]" italics="true" pageId="2" pageNumber="297">Pereonite 4</emphasis>
with irregular dorsal transverse rows of club-shaped spines, concentrated sublaterally and laterally.
<emphasis id="B9472D5FFFE93154CE2863512DFDFB79" box="[1120,1250,1136,1162]" italics="true" pageId="2" pageNumber="297">Pereonite 5</emphasis>
with 2 irregular dorsal transverse rows of 6–8 spines; lateral margins with about 12 club-shaped spines.
<emphasis id="B9472D5FFFE93154CE1663B52C33FB5D" box="[1118,1324,1172,1198]" italics="true" pageId="2" pageNumber="297">Pereonites 6 and 7</emphasis>
each with irregular dorsal transverse row of 6–8 spines; lateral margins with about 6 club-shaped spines; pereonite 6 sternite with median tubercle; pereonite 7 sternite with 2 median spines, more posterior directed obliquely posterior.
</paragraph>
<caption id="DF4CA1C5FFE93154CAD064B82A94FC26" ID-DOI="http://doi.org/10.5281/zenodo.12732653" ID-Zenodo-Dep="12732653" httpUri="https://zenodo.org/record/12732653/files/figure.png" pageId="2" pageNumber="297" startId="2.[152,255,921,945]" targetBox="[151,1435,181,897]" targetPageId="2" targetType="figure">
<paragraph id="8B8CF14DFFE93154CAD064B82A94FC26" blockId="2.[151,1437,921,982]" pageId="2" pageNumber="297">
<emphasis id="B9472D5FFFE93154CAD064B8280EFC42" bold="true" box="[152,273,921,945]" pageId="2" pageNumber="297">FIGURE 1</emphasis>
.
<taxonomicName id="4C338ACEFFE93154CB5464BB28E3FC42" authorityName="Poore &amp; Black" authorityYear="2024" box="[284,508,921,945]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="2" pageNumber="297" phylum="Arthropoda" rank="species" species="brandtae" status="sp. nov.">
<emphasis id="B9472D5FFFE93154CB5464BB28E3FC42" box="[284,508,921,945]" italics="true" pageId="2" pageNumber="297">Fissarcturus brandtae</emphasis>
</taxonomicName>
<emphasis id="B9472D5FFFE93154C84964BB2B4FFC41" bold="true" box="[513,592,922,946]" pageId="2" pageNumber="297">
<taxonomicNameLabel id="A2749024FFE93154C84964BB2B4FFC41" box="[513,592,922,946]" pageId="2" pageNumber="297" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
Dorsal and lateral micro-CT scans. a, b, ZMH K-65081 (paratype ovigerous female, 7.1 mm); c, d, ZMH K-65086 (paratype male, 5.1 mm). Scale bar = 5 mm.
</paragraph>
</caption>
<paragraph id="8B8CF14DFFE93154CA8F62212DCFFA59" blockId="2.[151,1437,1064,2026]" pageId="2" pageNumber="297">
<emphasis id="B9472D5FFFE93154CA8F62212822FAE9" box="[199,317,1280,1306]" italics="true" pageId="2" pageNumber="297">Pleotelson</emphasis>
about 1.3 times as long as pereonites 5–7, twice as long as greatest width (terminal spines excluded); pleonites 1–3 indicated by transverse dorsal-lateral rows of 8 spines; pleonite 1 sternite with anteriorly directed median spine; pleonite 3 with pair of more prominent lateral spines; posterior part oval in dorsal view, slightly domed, with irregular transverse rows of shorter spines; with pair of diverging posterolateral spines about one-third length of pleotelson, medial apex of pleotelson projecting slightly between posterolateral spines.
</paragraph>
<paragraph id="8B8CF14DFFE93154CA8F62952BEAFA01" blockId="2.[151,1437,1064,2026]" pageId="2" pageNumber="297">
<emphasis id="B9472D5FFFE93154CA8F62952825FA3D" box="[199,314,1460,1486]" italics="true" pageId="2" pageNumber="297">Antennula</emphasis>
peduncle article 1 almost square; article 2 shorter; article 3 as long as articles 1 and 2 together; flagellum of single article with 3 terminal aesthetascs.
</paragraph>
<paragraph id="8B8CF14DFFE93154CA8F62DD2DE6F971" blockId="2.[151,1437,1064,2026]" pageId="2" pageNumber="297">
<emphasis id="B9472D5FFFE93154CA8F62DD283BF9E5" box="[199,292,1532,1558]" italics="true" pageId="2" pageNumber="297">Antenna</emphasis>
peduncle article 1 not visible dorsally; article 2 broad, spinulose, with 2 short spines on upper face, lower face bilobed; article 3 twice as long as wide, spinulose, with 2 oblique spines on upper-lateral face; article 4 as long as articles 1–3, 7 times as long as wide, spinulose, with distolateral spine; article 5 1.4 times as long as article 4, about 20 times as long as wide, smooth; flagellum of 2 articles plus claw, half as long as article 5.
</paragraph>
<paragraph id="8B8CF14DFFE93154CA8F61AD2C9FF91D" blockId="2.[151,1437,1064,2026]" pageId="2" pageNumber="297">
<emphasis id="B9472D5FFFE93154CA8F61AD285FF955" box="[199,320,1676,1702]" italics="true" pageId="2" pageNumber="297">Maxilliped</emphasis>
coxa 1.8 times as wide as long; basal endite with 6 terminal and subterminal setae; ischium attached near midpoint of basis, short; merus longer than ischium; carpus twice as long as ischium and merus together, 2.5 times as long as wide; propodus half as long as carpus; dactylus half as long and wide as propodus; epipod oval.
</paragraph>
<paragraph id="8B8CF14DFFE93153CA8F61D92D23FE06" blockId="2.[151,1437,1064,2026]" lastBlockId="5.[151,1437,151,969]" lastPageId="5" lastPageNumber="300" pageId="2" pageNumber="297">
<emphasis id="B9472D5FFFE93154CA8F61D92857F8E1" box="[199,328,1784,1810]" italics="true" pageId="2" pageNumber="297">Pereopod 1</emphasis>
coxa fused to pereonite, with 4 laterally directed spines; basis with short spine on extensor margin, about as long as ischium–carpus; propodus about as long as basis, 2.5 times as long as wide, with setae on mesial face, longer seta along flexor margin; dactylus as long as propodus, unguis about one-quarter its length.
<emphasis id="B9472D5FFFE93154CF78606129BAF88D" italics="true" pageId="2" pageNumber="297">Pereopod 2</emphasis>
coxa free, with posterior triangular projection; basis with long complex spine on extensor margin; ischium with long complex spine on extensor margin; merus with 2 long complex spines on extensor margin; carpus about 7 times as long as wide, covered with prickles, with long complex spine about one-quarter along extensor margin, plus distal tooth; propodus covered with prickles, 0.85 length of carpus, about 10 times as long as wide, slightly tapering; dactylus body half as long as propodus, unguis 1.4 times as long as body; merus–propodus with rows of long and short setae along flexor margin.
<emphasis id="B9472D5FFFE83155C82A60A82BFDF850" box="[610,738,1929,1955]" italics="true" pageId="3" pageNumber="298">Pereopod 3</emphasis>
0.9 times as long as pereopod 2; coxa free, with short posterior triangular projection; basis with 5 long complex spines on extensor and lateral margins; ischium with 2 long complex spines on extensor margin; merus with 2 long complex spines on extensor margin; carpus about 6 times as long as wide, covered with prickles, with long complex spine about one-third along extensor margin; propodus covered with prickles, 0.85 length of carpus, about 10 times as long as wide, slightly tapering; dactylus body 0.4 length of propodus, unguis as long as body; merus–propodus with rows of long and short setae along flexor margin.
<emphasis id="B9472D5FFFEF3152CF7867FE29BAFEEE" italics="true" pageId="4" pageNumber="299">Pereopod 4</emphasis>
about as long as long as pereopod 3; coxa free, with mesial and posterior triangular projections; basis with 6 long complex spines on extensor and lateral margins; ischium with 2 long complex spines on extensor margin; merus with 1 long complex spine on extensor margin, plus distal tooth; carpus about 7 times as long as wide, covered with prickles, with 2 short spines in proximal third along extensor margin; propodus covered with prickles, 0.7 length of carpus, about 7 times as long as wide; dactylus body 0.6 length of propodus, unguis as long as body; merus– propodus with rows of long and short setae along flexor margin.
<emphasis id="B9472D5FFFEF3152C92A66962D16FE22" box="[866,1033,439,465]" italics="true" pageId="4" pageNumber="299">Pereopods 5–7</emphasis>
of similar lengths.
<emphasis id="B9472D5FFFEF3152CE9666962C41FE22" box="[1246,1374,439,465]" italics="true" pageId="4" pageNumber="299">Pereopod 5</emphasis>
basis with 10 tapering spines of different lengths on extensor margin; ischium with 1 long spine on extensor margin; merus with subdistal tooth; carpus about twice as long as wide, with 3 robust setae on flexor margin; propodus 1.7 times as long as carpus, about 5 times as long as wide, with 3 robust setae on flexor margin; dactylus 0.6 length of propodus, with short unguis.
<emphasis id="B9472D5FFFEE3153CBA967FE2B7CFF0B" box="[481,611,222,249]" italics="true" pageId="5" pageNumber="300">Pereopod 6</emphasis>
basis with 4 truncate spines and substantial prickles on extensor margin; ischium with 1 long spine on extensor margin; merus with subdistal spine, with 2 robust setae on extensor margin; carpus about 1.5 times as long as wide, with 2 robust setae on flexor margin; propodus twice as long as carpus, about 4.5 times as long as wide, with 3 robust setae on flexor margin; dactylus 0.7 length of propodus, with short unguis.
<emphasis id="B9472D5FFFEE3153CADF664E2806FE7A" box="[151,281,367,393]" italics="true" pageId="5" pageNumber="300">Pereopod 7</emphasis>
basis with 3 truncate spines and substantial prickles on extensor margin; ischium with 1 long spine on extensor margin; merus with subdistal spine, with 2 robust setae on extensor margin; carpus about 1.3 times as long as wide, with 3 robust setae on flexor margin; propodus twice as long as carpus, about 4 times as long as wide, with 5 robust setae on flexor margin; dactylus 0.8 length of propodus, with short unguis.
</paragraph>
<caption id="DF4CA1C5FFE83155CADF61F62AB3F8E1" ID-DOI="http://doi.org/10.5281/zenodo.12732655" ID-Zenodo-Dep="12732655" httpUri="https://zenodo.org/record/12732655/files/figure.png" pageId="3" pageNumber="298" startId="3.[151,250,1751,1775]" targetBox="[151,1435,181,1727]" targetPageId="3" targetType="figure">
<paragraph id="8B8CF14DFFE83155CADF61F62AB3F8E1" blockId="3.[151,1436,1751,1811]" pageId="3" pageNumber="298">
<emphasis id="B9472D5FFFE83155CADF61F62813F91C" bold="true" box="[151,268,1751,1775]" pageId="3" pageNumber="298">FIGURE 2</emphasis>
.
<taxonomicName id="4C338ACEFFE83155CB5F61F928E8F91C" authorityName="Poore &amp; Black" authorityYear="2024" box="[279,503,1751,1775]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="298" phylum="Arthropoda" rank="species" species="brandtae" status="sp. nov.">
<emphasis id="B9472D5FFFE83155CB5F61F928E8F91C" box="[279,503,1751,1775]" italics="true" pageId="3" pageNumber="298">Fissarcturus brandtae</emphasis>
</taxonomicName>
<emphasis id="B9472D5FFFE83155CBB561F62B53F91C" bold="true" box="[509,588,1751,1775]" pageId="3" pageNumber="298">
<taxonomicNameLabel id="A2749024FFE83155CBB561F62B53F91C" box="[509,588,1751,1775]" pageId="3" pageNumber="298" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
Photomicrographs. a, ZMH K-65081 (paratype ovigerous female, 7.1 mm). b, ZMH K-65086 (paratype male, 5.1 mm; right uropod removed). Scale bars = 2 mm.
</paragraph>
</caption>
<caption id="DF4CA1C5FFEF3152CADF60232801F801" ID-DOI="http://doi.org/10.5281/zenodo.12732659" ID-Zenodo-Dep="12732659" httpUri="https://zenodo.org/record/12732659/files/figure.png" pageId="4" pageNumber="299" startId="4.[151,250,1794,1818]" targetBox="[151,1435,525,1771]" targetPageId="4" targetType="figure">
<paragraph id="8B8CF14DFFEF3152CADF60232801F801" blockId="4.[151,1437,1794,2035]" pageId="4" pageNumber="299">
<emphasis id="B9472D5FFFEF3152CADF6023280FF8E9" bold="true" box="[151,272,1794,1818]" pageId="4" pageNumber="299">FIGURE 3</emphasis>
.
<taxonomicName id="4C338ACEFFEF3152CB6860222B1CF8E9" authorityName="Poore &amp; Black" authorityYear="2024" box="[288,515,1794,1818]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="4" pageNumber="299" phylum="Arthropoda" rank="species" species="brandtae" status="sp. nov.">
<emphasis id="B9472D5FFFEF3152CB6860222B1CF8E9" box="[288,515,1794,1818]" italics="true" pageId="4" pageNumber="299">Fissarcturus brandtae</emphasis>
</taxonomicName>
<emphasis id="B9472D5FFFEF3152C84560222B7EF8E8" bold="true" box="[525,609,1795,1819]" pageId="4" pageNumber="299">
<taxonomicNameLabel id="A2749024FFEF3152C84560222B7EF8E8" box="[525,609,1795,1819]" pageId="4" pageNumber="299" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
ZMH K-65080 (paratype ovigerous female, 10.3 mm). a, b, dorsal and lateral habitus; c, anterolateral head-pereonite 1, left antennula, antenna (lateral-oblique dorsal view); d, labrum, ventral clypeus, mouthfield, left side of head, antennal peduncle articles 1–3 (ventral); e, labrum, ventral clypeus, upcurved dorsal clypeus (dashed line), mandible, left side of head, antennal peduncle article 1 (obscuring dorsal clypeus; lateral view); f, left pereopodal coxae 3, 4 (c3, c4, ventral, articulation of bases shaded); g, detail of dorsal spines, pereonite 5; h, left coxae 6, 7 (pereopodal bases removed), median profile of pereonites 6, 7, pleonite 1 (lateral view); i, left uropod; j, left uropodal rami (internal). Scale bars = 1 mm.
</paragraph>
</caption>
<paragraph id="8B8CF14DFFEE3153CA8F66DE2DA9FD92" blockId="5.[151,1437,151,969]" pageId="5" pageNumber="300">
<emphasis id="B9472D5FFFEE3153CA8F66DE2826FDEA" box="[199,313,511,537]" italics="true" pageId="5" pageNumber="300">Pleopod 1</emphasis>
peduncle 3.5 times as long as wide, with 10 tubercles along lateral margin, with 4 cincinnuli; exopod longer than peduncle; endopod narrower and shorter than exopod.
<emphasis id="B9472D5FFFEE3153C9D565022D0DFDCE" box="[925,1042,547,573]" italics="true" pageId="5" pageNumber="300">Pleopod 2</emphasis>
peduncle as long as wide, with 3 cincinnuli; exopod and endopod of similar lengths, with marginal plumose setae (not figured).
</paragraph>
<paragraph id="8B8CF14DFFEE3153CA8F654A2D52FD5A" blockId="5.[151,1437,151,969]" pageId="5" pageNumber="300">
<emphasis id="B9472D5FFFEE3153CA8F654A282CFD76" box="[199,307,619,645]" italics="true" pageId="5" pageNumber="300">Uropodal</emphasis>
peduncle convex beyond hinge, with 4 tubercles along length; endopod triangular, with rounded apex without seta; exopod 0.7 length of endopod, 0.4 times as wide, with 2 terminal setae.
</paragraph>
<paragraph id="8B8CF14DFFEE3153CA8F65932D0BFC3A" blockId="5.[151,1437,151,969]" pageId="5" pageNumber="300">
<emphasis id="B9472D5FFFEE3153CA8F65932BD4FD3E" bold="true" box="[199,715,690,717]" pageId="5" pageNumber="300">Diagnostic description of illustrated male:</emphasis>
<emphasis id="B9472D5FFFEE3153C89E65922A4BFD3F" box="[726,852,691,716]" italics="true" pageId="5" pageNumber="300">Integument</emphasis>
spinous and covered with minute prickles, spines variously club-shaped, also decorated along their length with sharp prickles.
<emphasis id="B9472D5FFFEE3153CE4D65F62D5BFD03" box="[1029,1092,727,752]" italics="true" pageId="5" pageNumber="300">Front</emphasis>
convex; eyes prominent, well pigmented.
<emphasis id="B9472D5FFFEE3153CB5665DA2844FCE6" box="[286,347,763,789]" italics="true" pageId="5" pageNumber="300">Head</emphasis>
with 2 pairs of prominent submedian spines, 2 sublateral pairs; margin with anterolateral and lateral triangular projections.
<emphasis id="B9472D5FFFEE3153CBAE643E2B77FCCA" box="[486,616,799,825]" italics="true" pageId="5" pageNumber="300">Pereonite 1</emphasis>
with 3 pairs of submedian spines, second pair twice as long as first and third; each sublateral area with cluster of about 7 spines, one larger than others; margin with 2 small triangular projections, swelling over base of pereopod.
<emphasis id="B9472D5FFFEE3153C8EE64462A9BFC72" box="[678,900,871,897]" italics="true" pageId="5" pageNumber="300">Pereonites 2 and 3</emphasis>
similar to pereonite 1.
<emphasis id="B9472D5FFFEE3153CED464462C3EFC72" box="[1180,1313,871,897]" italics="true" pageId="5" pageNumber="300">Pereonite 4</emphasis>
with each sublateral area with about 10 short spines; margin with tuberculate swelling over pereopodal coxa.
<emphasis id="B9472D5FFFEE3153CEBC64AA2C83FC56" box="[1268,1436,907,933]" italics="true" pageId="5" pageNumber="300">Pereonites 5–7</emphasis>
similar to pereonite 4 but with fewer spines, appearing more in transverse rows.
</paragraph>
<caption id="DF4CA1C5FFEE3153CADF60BD2A2FF82B" ID-DOI="http://doi.org/10.5281/zenodo.12732661" ID-Zenodo-Dep="12732661" httpUri="https://zenodo.org/record/12732661/files/figure.png" pageId="5" pageNumber="300" startId="5.[151,250,1948,1972]" targetBox="[151,1435,993,1925]" targetPageId="5" targetType="figure">
<paragraph id="8B8CF14DFFEE3153CADF60BD2A2FF82B" blockId="5.[151,1436,1948,2008]" pageId="5" pageNumber="300">
<emphasis id="B9472D5FFFEE3153CADF60BD2811F847" bold="true" box="[151,270,1948,1972]" pageId="5" pageNumber="300">FIGURE 4</emphasis>
.
<taxonomicName id="4C338ACEFFEE3153CB5460BC28E1F847" authorityName="Poore &amp; Black" authorityYear="2024" box="[284,510,1948,1972]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="5" pageNumber="300" phylum="Arthropoda" rank="species" species="brandtae" status="sp. nov.">
<emphasis id="B9472D5FFFEE3153CB5460BC28E1F847" box="[284,510,1948,1972]" italics="true" pageId="5" pageNumber="300">Fissarcturus brandtae</emphasis>
</taxonomicName>
<emphasis id="B9472D5FFFEE3153C84E60BD2B47F847" bold="true" box="[518,600,1948,1972]" pageId="5" pageNumber="300">
<taxonomicNameLabel id="A2749024FFEE3153C84E60BD2B47F847" box="[518,600,1948,1972]" pageId="5" pageNumber="300" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
ZMH K-65080 (ovigerous female, 10.3 mm). a, maxilliped; b, maxilliped endite detail; c–i, pereopods 1–7; j, k, pleopods 1, 2. Scale bars = 1 mm.
</paragraph>
</caption>
<caption id="DF4CA1C5FFED3150CADF637F28C6FB4D" ID-DOI="http://doi.org/10.5281/zenodo.12732663" ID-Zenodo-Dep="12732663" httpUri="https://zenodo.org/record/12732663/files/figure.png" pageId="6" pageNumber="301" startId="6.[151,250,1118,1142]" targetBox="[151,1435,181,1094]" targetPageId="6" targetType="figure">
<paragraph id="8B8CF14DFFED3150CADF637F28C6FB4D" blockId="6.[151,1437,1118,1214]" pageId="6" pageNumber="301">
<emphasis id="B9472D5FFFED3150CADF637F2811FB85" bold="true" box="[151,270,1118,1142]" pageId="6" pageNumber="301">FIGURE 5</emphasis>
.
<taxonomicName id="4C338ACEFFED3150CB53637E28E3FB85" authorityName="Poore &amp; Black" authorityYear="2024" box="[283,508,1118,1142]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="6" pageNumber="301" phylum="Arthropoda" rank="species" species="brandtae" status="sp. nov.">
<emphasis id="B9472D5FFFED3150CB53637E28E3FB85" box="[283,508,1118,1142]" italics="true" pageId="6" pageNumber="301">Fissarcturus brandtae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2749024FFED3150C84B637F2B49FB85" box="[515,598,1118,1142]" pageId="6" pageNumber="301" rank="species">
<emphasis id="B9472D5FFFED3150C84B637F2B50FB85" bold="true" box="[515,591,1118,1142]" pageId="6" pageNumber="301">sp. nov</emphasis>
.
</taxonomicNameLabel>
ZMH K-65085 (paratype male, 6.5 mm). a, b, dorsal and lateral habitus; c, penial plate; d, left pleopod 1 (posterior face, endopod broken); e, detail of pleopod 1 endopod apex; e, right pleopod 2 (marginal setae not shown). Scale bars = 1 mm.
</paragraph>
</caption>
<paragraph id="8B8CF14DFFED3150CA8F6231281DFA65" blockId="6.[151,1437,1296,2043]" pageId="6" pageNumber="301">
<emphasis id="B9472D5FFFED3150CA8F62312822FAD9" box="[199,317,1296,1322]" italics="true" pageId="6" pageNumber="301">Pleotelson</emphasis>
fused, about half as wide as long.
<emphasis id="B9472D5FFFED3150C88062312A7DFAD8" box="[712,866,1296,1323]" italics="true" pageId="6" pageNumber="301">Pleonites 1–3</emphasis>
each with pair of submedian spines and 2 pairs of sublateral spines; pleonite 3 with lateral marginal swelling.
<emphasis id="B9472D5FFFED3150C97262142D31FABD" box="[826,1070,1332,1358]" italics="true" pageId="6" pageNumber="301">Remaining pleotelson</emphasis>
with 3 pairs of submedian short spines, laterally spines shorter, more irregularly arranged; posterolateral spines about one-third length of pleotelson, upturned.
</paragraph>
<paragraph id="8B8CF14DFFED3150CA8F62812B6EFA2D" blockId="6.[151,1437,1296,2043]" pageId="6" pageNumber="301">
<emphasis id="B9472D5FFFED3150CA8F62812825FA49" box="[199,314,1440,1466]" italics="true" pageId="6" pageNumber="301">Antennula</emphasis>
peduncle article 1 almost square; article 2 shorter; article 3 half as long as article 2; flagellum of single article with 8 groups of aesthetascs.
</paragraph>
<paragraph id="8B8CF14DFFED3150CA8F62C82DFEF9B8" blockId="6.[151,1437,1296,2043]" pageId="6" pageNumber="301">
<emphasis id="B9472D5FFFED3150CA8F62C8283BF9F0" box="[199,292,1513,1539]" italics="true" pageId="6" pageNumber="301">Antenna</emphasis>
peduncle article 1 not visible dorsally; article 2 broad, with spinulose lateral lobe; article 3 about twice as long as wide, spinulose, with lateral blunt lobes, with strong distolateral spine; article 4 1.6 times as long as article 3; article 5 1.6 times as long as article 4; flagellum of 2 articles plus claw, half as long as article 5.
</paragraph>
<paragraph id="8B8CF14DFFED3150CA8F61752C5AF945" blockId="6.[151,1437,1296,2043]" pageId="6" pageNumber="301">
<emphasis id="B9472D5FFFED3150CA8F61752850F99D" box="[199,335,1620,1646]" italics="true" pageId="6" pageNumber="301">Penial plate</emphasis>
about as long as pleopod 1 peduncle.
<emphasis id="B9472D5FFFED3150C8B261752A73F99C" box="[762,876,1620,1647]" italics="true" pageId="6" pageNumber="301">Pleopod 1</emphasis>
peduncle 3 times as long as wide; exopod as long as peduncle, posterior groove ending about three-quarters along, with ridge on distal face, with 8 short stout setae around opening.
<emphasis id="B9472D5FFFED3150CB1C61BD28D9F944" box="[340,454,1692,1719]" italics="true" pageId="6" pageNumber="301">Pleopod 2</emphasis>
with rami of similar lengths; appendix masculina 1.2 times as long as endopod.
</paragraph>
</subSubSection>
<subSubSection id="C329A2C6FFED3150CA8F61E02896F90D" pageId="6" pageNumber="301" type="etymology">
<paragraph id="8B8CF14DFFED3150CA8F61E02896F90D" blockId="6.[151,1437,1296,2043]" pageId="6" pageNumber="301">
<emphasis id="B9472D5FFFED3150CA8F61E0284DF928" bold="true" box="[199,338,1729,1755]" pageId="6" pageNumber="301">Etymology:</emphasis>
For Angelika Brandt in recognition of her work on this genus and her dedicated organisation of the ANDEEP cruises.
</paragraph>
</subSubSection>
<subSubSection id="C329A2C6FFED3151CA8F60282855FD5A" lastPageId="7" lastPageNumber="302" pageId="6" pageNumber="301" type="discussion">
<paragraph id="8B8CF14DFFED3151CA8F60282800FD92" blockId="6.[151,1437,1296,2043]" lastBlockId="7.[151,1437,151,681]" lastPageId="7" lastPageNumber="302" pageId="6" pageNumber="301">
<emphasis id="B9472D5FFFED3150CA8F60282822F8D0" bold="true" box="[199,317,1801,1827]" pageId="6" pageNumber="301">Remarks:</emphasis>
The male of
<taxonomicName id="4C338ACEFFED3150CB9860282BD7F8D1" authorityName="Poore &amp; Black" authorityYear="2024" box="[464,712,1800,1826]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="6" pageNumber="301" phylum="Arthropoda" rank="species" species="brandtae">
<emphasis id="B9472D5FFFED3150CB9860282BD7F8D1" box="[464,712,1800,1826]" italics="true" pageId="6" pageNumber="301">Fissarcturus brandtae</emphasis>
</taxonomicName>
differs from the female in having less prominent spines although their arrangement and ornamentation are similar.
<taxonomicName id="4C338ACEFFED3150C8F1600C2AAFF8B5" authorityName="Poore &amp; Black" authorityYear="2024" box="[697,944,1836,1862]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="6" pageNumber="301" phylum="Arthropoda" rank="species" species="brandtae">
<emphasis id="B9472D5FFFED3150C8F1600C2AAFF8B5" box="[697,944,1836,1862]" italics="true" pageId="6" pageNumber="301">Fissarcturus brandtae</emphasis>
</taxonomicName>
is most similar to
<taxonomicName id="4C338ACEFFED3150CE32600C2C7FF8B4" authority="Brandt, 2007" authorityName="Brandt" authorityYear="2007" box="[1146,1376,1836,1863]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="6" pageNumber="301" phylum="Arthropoda" rank="species" species="rossi">
<emphasis id="B9472D5FFFED3150CE32600C2DD6F8B5" box="[1146,1225,1837,1862]" italics="true" pageId="6" pageNumber="301">F. rossi</emphasis>
Brandt, 2007
</taxonomicName>
from the Ross Sea on the opposite side of
<collectingCountry id="F324B1DDFFED3150C87D60712BB2F899" box="[565,685,1872,1898]" name="Antarctica" pageId="6" pageNumber="301">Antarctica</collectingCountry>
. They are the only species of the genus covered in minute prickles over transverse rows of prominent spines. Only the female of
<taxonomicName id="4C338ACEFFED3150C90060542A87F87D" authorityName="Brandt" authorityYear="2007" box="[840,920,1909,1934]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="6" pageNumber="301" phylum="Arthropoda" rank="species" species="rossi">
<emphasis id="B9472D5FFFED3150C90060542A87F87D" box="[840,920,1909,1934]" italics="true" pageId="6" pageNumber="301">F. rossi</emphasis>
</taxonomicName>
is known. The spines on the head to pereonite 4 are longer in the female of
<taxonomicName id="4C338ACEFFED3150CBBA60B82B69F841" authorityName="Poore &amp; Black" authorityYear="2024" box="[498,630,1944,1970]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="6" pageNumber="301" phylum="Arthropoda" rank="species" species="brandtae">
<emphasis id="B9472D5FFFED3150CBBA60B82B69F841" box="[498,630,1944,1970]" italics="true" pageId="6" pageNumber="301">F. brandtae</emphasis>
</taxonomicName>
than in
<taxonomicName id="4C338ACEFFED3150C89260B82A31F841" authorityName="Brandt" authorityYear="2007" box="[730,814,1945,1970]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="6" pageNumber="301" phylum="Arthropoda" rank="species" species="rossi">
<emphasis id="B9472D5FFFED3150C89260B82A31F841" box="[730,814,1945,1970]" italics="true" pageId="6" pageNumber="301">F. rossi</emphasis>
</taxonomicName>
but are shorter on pereonites 5–7 and the pleotelson. The pereopods of
<taxonomicName id="4C338ACEFFED3150CB22609C28F2F825" authorityName="Poore &amp; Black" authorityYear="2024" box="[362,493,1980,2006]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="6" pageNumber="301" phylum="Arthropoda" rank="species" species="brandtae">
<emphasis id="B9472D5FFFED3150CB22609C28F2F825" box="[362,493,1980,2006]" italics="true" pageId="6" pageNumber="301">F. brandtae</emphasis>
</taxonomicName>
are much thinner than those of
<emphasis id="B9472D5FFFED3150C92B609C2AA1F825" box="[867,958,1981,2006]" italics="true" pageId="6" pageNumber="301">
<taxonomicName id="4C338ACEFFED3150C92B609C2AA5F825" authorityName="Brandt" authorityYear="2007" box="[867,954,1981,2006]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="6" pageNumber="301" phylum="Arthropoda" rank="species" species="rossi">F. rossi</taxonomicName>
.
</emphasis>
Another species covered in prickles is
<taxonomicName id="4C338ACEFFED3150CFC0609C2B06F808" authority=", Nickel &amp; Brandt, 2013" authorityName=", Nickel &amp; Brandt" authorityYear="2013" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="6" pageNumber="301" phylum="Arthropoda" rank="species" species="dorotheae">
<emphasis id="B9472D5FFFED3150CFC0609C2818F809" italics="true" pageId="6" pageNumber="301">F. dorotheae</emphasis>
, Nickel &amp; Brandt, 2013
</taxonomicName>
of which only the juvenile female of
<taxonomicName id="4C338ACEFFED3150C98C60C02D4EF809" authorityName=", Nickel &amp; Brandt" authorityYear="2013" box="[964,1105,2016,2042]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="6" pageNumber="301" phylum="Arthropoda" rank="species" species="dorotheae">
<emphasis id="B9472D5FFFED3150C98C60C02D4EF809" box="[964,1105,2016,2042]" italics="true" pageId="6" pageNumber="301">F. dorotheae</emphasis>
</taxonomicName>
is known. It is does not have swollen anterior pereonites typical of ovigerous females, nor does it have long dorsal spines except on the head; the posterolateral pleotelsonic spines are very short.
<taxonomicName id="4C338ACEFFEC3151C8E6679A2ABBFF26" authorityName="Poore &amp; Black" authorityYear="2024" box="[686,932,187,213]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="brandtae">
<emphasis id="B9472D5FFFEC3151C8E6679A2ABBFF26" box="[686,932,187,213]" italics="true" pageId="7" pageNumber="302">Fissarcturus brandtae</emphasis>
</taxonomicName>
is less similar to
<taxonomicName id="4C338ACEFFEC3151CE15679A29CDFF0A" authority="Brandt, 2007" authorityName="Brandt" authorityYear="2007" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="bathyweddellensis">
<emphasis id="B9472D5FFFEC3151CE15679A2C5BFF26" box="[1117,1348,187,213]" italics="true" pageId="7" pageNumber="302">F. bathyweddellensis</emphasis>
Brandt, 2007
</taxonomicName>
, also collected in the eastern Weddell Sea; its depth range,
<quantity id="4CCB5CA8FFEC3151C93367FE2D06FF0A" box="[891,1049,223,249]" metricMagnitude="3" metricUnit="m" metricValue="2.0075" metricValueMax="2.8939999999999997" metricValueMin="1.121" pageId="7" pageNumber="302" unit="m" value="2007.5" valueMax="2894.0" valueMin="1121.0">1121–2894 m</quantity>
, overlaps that of the new species. In the new species the spines of pereonites 1–4 are more numerous and less robust than in
<taxonomicName id="4C338ACEFFEC3151CEE366222C8AFEEE" authorityName="Brandt" authorityYear="2007" box="[1195,1429,259,285]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="bathyweddellensis">
<emphasis id="B9472D5FFFEC3151CEE366222C8AFEEE" box="[1195,1429,259,285]" italics="true" pageId="7" pageNumber="302">F. bathyweddellensis</emphasis>
</taxonomicName>
, those on pereonites 5–7 and the pleotelson are shorter and less tapered. All spines are secondarily spinulose which is not the case in
<emphasis id="B9472D5FFFEC3151CB16666A2B4FFE96" box="[350,592,331,357]" italics="true" pageId="7" pageNumber="302">
<taxonomicName id="4C338ACEFFEC3151CB16666A2B53FE96" authorityName="Brandt" authorityYear="2007" box="[350,588,331,357]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="bathyweddellensis">F. bathyweddellensis</taxonomicName>
.
</emphasis>
The limbs, antenna and pereopods, are significantly less robust than those of
<emphasis id="B9472D5FFFEC3151CAFF664E28B7FE7A" box="[183,424,367,393]" italics="true" pageId="7" pageNumber="302">
<taxonomicName id="4C338ACEFFEC3151CAFF664E28BBFE7A" authorityName="Brandt" authorityYear="2007" box="[183,420,367,393]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="bathyweddellensis">F. bathyweddellensis</taxonomicName>
.
</emphasis>
For example, the carpus of pereopod 2 of the female of
<taxonomicName id="4C338ACEFFEC3151CE62664E2DB3FE7A" authorityName="Poore &amp; Black" authorityYear="2024" box="[1066,1196,367,393]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="brandtae">
<emphasis id="B9472D5FFFEC3151CE62664E2DB3FE7A" box="[1066,1196,367,393]" italics="true" pageId="7" pageNumber="302">F. brandtae</emphasis>
</taxonomicName>
is about 7.5 times as long as wide whereas in
<taxonomicName id="4C338ACEFFEC3151CBFE66B22BBFFE5E" authorityName="Brandt" authorityYear="2007" box="[438,672,403,429]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="bathyweddellensis">
<emphasis id="B9472D5FFFEC3151CBFE66B22BBFFE5E" box="[438,672,403,429]" italics="true" pageId="7" pageNumber="302">F. bathyweddellensis</emphasis>
</taxonomicName>
this ratio is five times. The spines on the pereopods are shorter in
<emphasis id="B9472D5FFFEC3151CADF66962897FE22" box="[151,392,439,465]" italics="true" pageId="7" pageNumber="302">
<taxonomicName id="4C338ACEFFEC3151CADF6696289BFE22" authorityName="Brandt" authorityYear="2007" box="[151,388,439,465]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="bathyweddellensis">F. bathyweddellensis</taxonomicName>
.
</emphasis>
Another species from the same area,
<taxonomicName id="4C338ACEFFEC3151C97966962D45FE22" authority="Brandt, 2007" authorityName="Brandt" authorityYear="2007" box="[817,1114,439,465]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="sandwichi">
<emphasis id="B9472D5FFFEC3151C97966962ADFFE22" box="[817,960,439,465]" italics="true" pageId="7" pageNumber="302">F. sandwichi</emphasis>
Brandt, 2007
</taxonomicName>
has more slender pereopods but is ornamented mostly with tubercles, not spines except on the head.
<taxonomicName id="4C338ACEFFEC3151C9F266FA2DADFE06" authorityName="Poore &amp; Black" authorityYear="2024" box="[954,1202,475,501]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="brandtae">
<emphasis id="B9472D5FFFEC3151C9F266FA2DADFE06" box="[954,1202,475,501]" italics="true" pageId="7" pageNumber="302">Fissarcturus brandtae</emphasis>
</taxonomicName>
has longer and more attenuated spines than any of the other species described from elsewhere in the Southern Ocean. The males of
<taxonomicName id="4C338ACEFFEC3151CFC066DE28DDFDCE" authority="(Monod, 1926)" baseAuthorityName="Monod" baseAuthorityYear="1926" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="hirticornis">
<emphasis id="B9472D5FFFEC3151CFC066DE2812FDCE" italics="true" pageId="7" pageNumber="302">F. hirticornis</emphasis>
(
<bibRefCitation id="EFA28CBCFFEC3151CB55650228A5FDCE" author="Monod, T." box="[285,442,547,573]" pageId="7" pageNumber="302" pagination="1 - 67" refId="ref9081" refString="Monod, T. (1926) Tanaidaces, Isopodes et Amphipodes. Resultats du Voyage du S. Y. Belgica en 1897 - 99, Expedition Antarctique Belge, Rapports Scientifiques, Zoologie, 1926, 1 - 67." type="journal article" year="1926">Monod, 1926</bibRefCitation>
)
</taxonomicName>
,
<taxonomicName id="4C338ACEFFEC3151CB8665022A0FFDCE" authority="Brandt, 1990" authorityName="Brandt" authorityYear="1990" box="[462,784,547,573]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="emarginatus">
<emphasis id="B9472D5FFFEC3151CB8665022B69FDCF" box="[462,630,547,572]" italics="true" pageId="7" pageNumber="302">F. emarginatus</emphasis>
<bibRefCitation id="EFA28CBCFFEC3151C83565022A0FFDCE" author="Brandt, A." box="[637,784,547,573]" pageId="7" pageNumber="302" refId="ref8496" refString="Brandt, A. (1990) Antarctic valviferans (Crustacea, Isopoda, Valvifera) new genera, new species and redescriptions. E. J. Brill, Leiden, 176 pp., 96 figs." type="book" year="1990">Brandt, 1990</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="4C338ACEFFEC3151C90065022D94FDCE" authority="Wagele, 1991" authorityName="Wagele" authorityYear="1991" box="[840,1163,547,573]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="stephenseni">
<emphasis id="B9472D5FFFEC3151C90065022AF8FDCE" box="[840,999,547,573]" italics="true" pageId="7" pageNumber="302">F. stephenseni</emphasis>
<bibRefCitation id="EFA28CBCFFEC3151C9A665022D94FDCE" author="Wagele, J. W." box="[1006,1163,547,573]" pageId="7" pageNumber="302" pagination="1 - 213" refId="ref9893" refString="Wagele, J. W. (1991) Antarctic Isopoda Valvifera. In: Wagele, J. W. &amp; Sieg, J. (Eds.), Synopses of the Antarctic Benthos Vol. 2. Theses Zoologicae. Vol. 14. Koeltz Scientific Books, Konigstein, pp. 1 - 213." type="book chapter" year="1991">Wägele, 1991</bibRefCitation>
</taxonomicName>
have longer spines than
<taxonomicName id="4C338ACEFFEC3151CADF65662807FD92" authorityName="Poore &amp; Black" authorityYear="2024" box="[151,280,583,609]" class="Malacostraca" family="Antarcturidae" genus="Fissarcturus" kingdom="Animalia" order="Isopoda" pageId="7" pageNumber="302" phylum="Arthropoda" rank="species" species="brandtae">
<emphasis id="B9472D5FFFEC3151CADF65662807FD92" box="[151,280,583,609]" italics="true" pageId="7" pageNumber="302">F. brandtae</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8B8CF14DFFEC3151CA8F654A2855FD5A" blockId="7.[151,1437,151,681]" pageId="7" pageNumber="302">
<figureCitation id="1308EDC8FFEC3151CA8F654A2838FD76" box="[199,295,619,645]" captionStart="FIGURE 1" captionStartId="2.[152,255,921,945]" captionTargetBox="[151,1435,181,897]" captionTargetId="figure-34@2.[151,1435,181,897]" captionTargetPageId="2" captionText="FIGURE 1. Fissarcturus brandtae sp. nov. Dorsal and lateral micro-CT scans. a, b, ZMH K-65081 (paratype ovigerous female, 7.1 mm); c, d, ZMH K-65086 (paratype male, 5.1 mm). Scale bar = 5 mm." figureDoi="http://doi.org/10.5281/zenodo.12732653" httpUri="https://zenodo.org/record/12732653/files/figure.png" pageId="7" pageNumber="302">Figure 1</figureCitation>
compares the 3D render of contrasted exoskeleton from micro-CT data of the female (fig. 1a,b) and male (fig. 1c,d).
</paragraph>
</subSubSection>
</treatment>
</document>
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