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<document id="02630B74CE9F0F35171D04DD8A8F5441" ID-DOI="10.11646/zootaxa.3995.1.13" ID-GBIF-Dataset="1f451433-e83a-43f2-92b1-a14d463b1231" ID-ISSN="1175-5326" ID-Zenodo-Dep="243653" ID-ZooBank="94F7B77A-DD85-42A8-85B8-F60C65C20A7D" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461277613724" checkinUser="plazi" docAuthor="Gerken, Sarah &amp; Watling, Les" docDate="2015" docId="03E9879DFF82FF81B8BFF97ED974FCA2" docLanguage="en" docName="zt03995p137.pdf" docOrigin="Zootaxa 3995 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Platycuma bamberconfabulor Gerken &amp; Watling, 2015, sp. nov." docType="treatment" docVersion="7" lastPageNumber="137" masterDocId="FFD0FFE5FF82FF85B828FF82DD78FFB7" masterDocTitle="Platycuma bamberconfabulor sp. nov. (Crustacea: Cumacea: Nannastacidae) from Antarctica, with a note on the gut of Platycuma" masterLastPageNumber="137" masterPageNumber="133" pageNumber="133" updateTime="1698613289964" updateUser="plazi">
<mods:mods id="5E964825F446EF7237E14049626AE3D5" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="A44181CDFCE16E4CDF9F378666FB8638">
<mods:title id="60563B1C0254BE90964AB69495FE15C0">Platycuma bamberconfabulor sp. nov. (Crustacea: Cumacea: Nannastacidae) from Antarctica, with a note on the gut of Platycuma</mods:title>
</mods:titleInfo>
<mods:name id="08325312C5EDB8957F468B3EF8A626A5" type="personal">
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<mods:namePart id="BA02492081B078E13398394E4B0E5863">Gerken, Sarah</mods:namePart>
</mods:name>
<mods:name id="32C71847AD02C58F00C820F8CEBC400F" type="personal">
<mods:role id="9D51DC06E93A8DB3ACD98A38A92BA211">
<mods:roleTerm id="7890BB2D0002B66DA24C3131E040A0DC">Author</mods:roleTerm>
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<mods:namePart id="6F8C661A856F22A723C72EFD038FBA53">Watling, Les</mods:namePart>
</mods:name>
<mods:typeOfResource id="961A27A9C96D3A114133296AF683AF8E">text</mods:typeOfResource>
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<mods:title id="EC78F91B462BFEFFCA86DF517B801683">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="D126022A24512D3C5ECD6374729E514C">
<mods:date id="FF810EC94CAA41AD0652A316700D08EA">2015</mods:date>
<mods:detail id="AF3437C37572D5AD210E063272D9D1A2" type="volume">
<mods:number id="2DF56FE005C556A79DDAA35EC53ED0C2">3995</mods:number>
</mods:detail>
<mods:detail id="311B91F99A9ECE14DC5BCA6EF8832C5F" type="issue">
<mods:number id="387B758CDEA93A94E7FD55DFA8C8C42B">1</mods:number>
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<mods:classification id="0D60993CB58D05A3010EA6C8A2D01AA0">journal article</mods:classification>
<mods:identifier id="2A17CAB39C5BED4C346CC75B2EF5B5B3" type="DOI">10.11646/zootaxa.3995.1.13</mods:identifier>
<mods:identifier id="D63DBFD9DC5510AAB435A173DE166385" type="GBIF-Dataset">1f451433-e83a-43f2-92b1-a14d463b1231</mods:identifier>
<mods:identifier id="595EF4C5D48EAF88BAA1A01043A16B6A" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="8C8198DD2E3E262BE1897781DBE6403C" type="Zenodo-Dep">243653</mods:identifier>
<mods:identifier id="B3AEEDD1078CB216325E496E25B76AEF" type="ZooBank">94F7B77A-DD85-42A8-85B8-F60C65C20A7D</mods:identifier>
</mods:mods>
<treatment id="03E9879DFF82FF81B8BFF97ED974FCA2" ID-DOI="http://doi.org/10.5281/zenodo.6111062" ID-GBIF-Taxon="119639959" ID-Zenodo-Dep="6111062" LSID="urn:lsid:plazi:treatment:03E9879DFF82FF81B8BFF97ED974FCA2" httpUri="http://treatment.plazi.org/id/03E9879DFF82FF81B8BFF97ED974FCA2" lastPageId="4" lastPageNumber="137" pageId="0" pageNumber="133">
<subSubSection id="C35A6500FF82FF85B8BFF97EDC5FF88E" pageId="0" pageNumber="133" type="nomenclature">
<paragraph id="8BFF368BFF82FF85B8BFF97EDF1CF8A0" blockId="0.[151,612,1685,1849]" box="[151,612,1788,1815]" pageId="0" pageNumber="133">
<heading id="D0B781E7FF82FF85B8BFF97EDF1CF8A0" bold="true" box="[151,612,1788,1815]" fontSize="11" level="1" pageId="0" pageNumber="133" reason="1">
<emphasis id="B934EA99FF82FF85B8BFF97EDF1CF8A0" bold="true" box="[151,612,1788,1815]" pageId="0" pageNumber="133">
<taxonomicName id="4C404D08FF82FF85B8BFF97EDC87F8A1" ID-CoL="8YYFW" box="[151,511,1788,1814]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="0" pageNumber="133" phylum="Arthropoda" rank="species" species="bamberconfabulor" status="sp. nov.">
<emphasis id="B934EA99FF82FF85B8BFF97EDC87F8A1" bold="true" box="[151,511,1788,1814]" italics="true" pageId="0" pageNumber="133">Platycuma bamberconfabulor</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A20757E2FF82FF85BA2FF97FDF1CF8A0" box="[519,612,1789,1815]" pageId="0" pageNumber="133" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BFF368BFF82FF85B8BFF89DDC5FF88E" blockId="0.[151,612,1685,1849]" box="[151,295,1823,1849]" pageId="0" pageNumber="133">
(
<figureCitation id="137B2A0EFF82FF85B8B6F89DDD91F88E" box="[158,233,1823,1849]" captionStart="FIGURE 1" captionStartId="1.[151,250,1952,1974]" captionTargetBox="[151,1435,196,1928]" captionTargetId="figure@1.[151,1436,195,1928]" captionTargetPageId="1" captionText="FIGURE 1. Platycuma bamberconfabulor sp. nov. holotype subadult male (NIWA 807091). A, side view; B, dorsal view; C, antenna; D, maxilliped 1; E, maxilliped 2; F, maxilliped 3." httpUri="https://zenodo.org/record/243654/files/figure.png" pageId="0" pageNumber="133">FigS 1</figureCitation>
&amp;
<figureCitation id="137B2A0EFF82FF85B926F89DDC65F88E" box="[270,285,1823,1849]" captionStart="FIGURE 2" captionStartId="2.[151,250,1971,1993]" captionTargetBox="[159,1431,193,1955]" captionTargetId="figure@2.[159,1431,193,1956]" captionTargetPageId="2" captionText="FIGURE 2. Platycuma bamberconfabulor sp. nov. holotype subadult male (NIWA 807091). A, pereopod 1; B, pereopod 2; C, pereopod 3; D, pereopod 4; E, pereopod 5; F, pleonite 6 and uropods." httpUri="https://zenodo.org/record/243655/files/figure.png" pageId="0" pageNumber="133">2</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C35A6500FF82FF85B8BFF8DDDEEFF82B" pageId="0" pageNumber="133" type="materials_examined">
<paragraph id="8BFF368BFF82FF85B8BFF8DDDEEFF82B" blockId="0.[151,1436,1887,2020]" pageId="0" pageNumber="133">
<emphasis id="B934EA99FF82FF85B8BFF8DDDF75F8CF" bold="true" box="[151,525,1887,1912]" pageId="0" pageNumber="133">
Material examined.
<typeStatus id="54FB8829FF82FF85B9A5F8DDDC82F8CF" box="[397,506,1887,1912]" pageId="0" pageNumber="133" type="holotype">Holotype</typeStatus>
-
</emphasis>
subadult male (
<collectionCode id="ED51AE4EFF82FF85BAEFF8E2DE6AF8CF" box="[711,786,1888,1912]" httpUri="http://grbio.org/cool/nyq3-3g6s" name="National Institute of Water and Atmospheric Research" pageId="0" pageNumber="133">NIWA</collectionCode>
80709) Ross Sea,
<collectingCountry id="F357761BFF82FF85BBC7F8DDD91FF8CF" box="[1007,1127,1887,1912]" name="Antarctica" pageId="0" pageNumber="133">Antarctica</collectingCountry>
, RV
<taxonomicName id="4C404D08FF82FF85BC8BF8E2D876F8C0" box="[1187,1294,1888,1911]" class="Arachnida" family="Uloboridae" genus="Tangaroa" kingdom="Animalia" order="Araneae" pageId="0" pageNumber="133" phylum="Arthropoda" rank="genus">
<emphasis id="B934EA99FF82FF85BC8BF8E2D876F8C0" box="[1187,1294,1888,1911]" italics="true" pageId="0" pageNumber="133">Tangaroa</emphasis>
</taxonomicName>
cruise TAN 0 802, Station 88,
<geoCoordinate id="EE74504CFF82FF85B975F801DCADF82B" box="[349,469,1923,1948]" direction="south" orientation="latitude" pageId="0" pageNumber="133" precision="5" value="-76.6097">76.6097°S</geoCoordinate>
,
<geoCoordinate id="EE74504CFF82FF85B9C8F801DF11F82B" box="[480,617,1923,1948]" direction="east" orientation="longitude" pageId="0" pageNumber="133" precision="5" value="176.756">176.7560°E</geoCoordinate>
,
<quantity id="4CB89B6EFF82FF85BA5CF801DFC5F82C" box="[628,701,1923,1948]" metricMagnitude="2" metricUnit="m" metricValue="3.6" pageId="0" pageNumber="133" unit="m" value="360.0">360 m</quantity>
,
<date id="FFFE104BFF82FF85BAE0F806DEEBF82B" box="[712,915,1923,1948]" pageId="0" pageNumber="133" value="2008-02-17">17 February 2008</date>
.
</paragraph>
</subSubSection>
<subSubSection id="C35A6500FF82FF85B8EFF825D852F853" pageId="0" pageNumber="133" type="diagnosis">
<paragraph id="8BFF368BFF82FF85B8EFF825D852F853" blockId="0.[151,1436,1887,2020]" pageId="0" pageNumber="133">
<emphasis id="B934EA99FF82FF85B8EFF825DC39F877" bold="true" box="[199,321,1959,1984]" pageId="0" pageNumber="133">Diagnosis.</emphasis>
Carapace laterally expanded and somewhat dorsoventrally flattened, anterior margin excavate in dorsal view, dorsal margin sinuous in lateral view, uropod peduncles less than twice length of pleonite 6.
</paragraph>
</subSubSection>
<caption id="DF3F6603FF83FF84B8BFF822DF9DF86E" httpUri="https://zenodo.org/record/243654/files/figure.png" pageId="1" pageNumber="134" targetBox="[151,1435,196,1928]" targetPageId="1">
<paragraph id="8BFF368BFF83FF84B8BFF822DF9DF86E" blockId="1.[151,1435,1952,2009]" pageId="1" pageNumber="134">
<emphasis id="B934EA99FF83FF84B8BFF822DC75F802" bold="true" box="[151,269,1952,1974]" pageId="1" pageNumber="134">FIGURE 1</emphasis>
.
<taxonomicName id="4C404D08FF83FF84B933F822DF32F801" box="[283,586,1952,1974]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="1" pageNumber="134" phylum="Arthropoda" rank="species" species="bamberconfabulor" status="sp. nov.">
<emphasis id="B934EA99FF83FF84B933F822DF32F801" box="[283,586,1952,1974]" italics="true" pageId="1" pageNumber="134">Platycuma bamberconfabulor</emphasis>
</taxonomicName>
<emphasis id="B934EA99FF83FF84BA79F822DFDAF802" bold="true" box="[593,674,1952,1973]" pageId="1" pageNumber="134">
<taxonomicNameLabel id="A20757E2FF83FF84BA79F822DFDAF802" box="[593,674,1952,1973]" pageId="1" pageNumber="134" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
holotype subadult male (NIWA 807091). A, side view; B, dorsal view; C, antenna; D, maxilliped 1; E, maxilliped 2; F, maxilliped 3.
</paragraph>
</caption>
<caption id="DF3F6603FF80FF87B8BFF831DE2DF85B" httpUri="https://zenodo.org/record/243655/files/figure.png" pageId="2" pageNumber="135" targetBox="[159,1431,193,1955]" targetPageId="2">
<paragraph id="8BFF368BFF80FF87B8BFF831DE2DF85B" blockId="2.[151,1435,1971,2028]" pageId="2" pageNumber="135">
<emphasis id="B934EA99FF80FF87B8BFF831DC75F87F" bold="true" box="[151,269,1971,1993]" pageId="2" pageNumber="135">FIGURE 2</emphasis>
.
<taxonomicName id="4C404D08FF80FF87B931F831DF3FF87E" box="[281,583,1971,1993]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="2" pageNumber="135" phylum="Arthropoda" rank="species" species="bamberconfabulor" status="sp. nov.">
<emphasis id="B934EA99FF80FF87B931F831DF3FF87E" box="[281,583,1971,1993]" italics="true" pageId="2" pageNumber="135">Platycuma bamberconfabulor</emphasis>
</taxonomicName>
<emphasis id="B934EA99FF80FF87BA66F836DFE7F87E" bold="true" box="[590,671,1972,1993]" pageId="2" pageNumber="135">
<taxonomicNameLabel id="A20757E2FF80FF87BA66F836DFE7F87E" box="[590,671,1972,1993]" pageId="2" pageNumber="135" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
holotype subadult male (NIWA 807091). A, pereopod 1; B, pereopod 2; C, pereopod 3; D, pereopod 4; E, pereopod 5; F, pleonite 6 and uropods.
</paragraph>
</caption>
<subSubSection id="C35A6500FF81FF86B8EFFF15DC5DFF4F" pageId="3" pageNumber="136" type="etymology">
<paragraph id="8BFF368BFF81FF86B8EFFF15DC5DFF4F" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="136">
<emphasis id="B934EA99FF81FF86B8EFFF15DC36FF07" bold="true" box="[199,334,151,176]" pageId="3" pageNumber="136">Etymology.</emphasis>
The species is named
<taxonomicName id="4C404D08FF81FF86BA7DFF15DE5CFF07" box="[597,804,151,176]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="bamberconfabulor">
<emphasis id="B934EA99FF81FF86BA7DFF15DE5CFF07" box="[597,804,151,176]" italics="true" pageId="3" pageNumber="136">bamberconfabulor</emphasis>
</taxonomicName>
for Roger N. Bamber in combination with
<emphasis id="B934EA99FF81FF86BD33FF15D8EDFF07" box="[1307,1429,151,176]" italics="true" pageId="3" pageNumber="136">confabulor</emphasis>
, from the Latin meaning debate, argue, or discuss in honor of Roger’s fondness for discussion of crustacean terminology.
</paragraph>
</subSubSection>
<subSubSection id="C35A6500FF81FF86B8EFFE86D9EFFB72" pageId="3" pageNumber="136" type="description">
<paragraph id="8BFF368BFF81FF86B8EFFE86D906FE67" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="136">
<emphasis id="B934EA99FF81FF86B8EFFE86DC29FEAA" bold="true" box="[199,337,260,285]" pageId="3" pageNumber="136">Description</emphasis>
.
<emphasis id="B934EA99FF81FF86B948FE86DF11FEAA" box="[352,617,260,285]" italics="true" pageId="3" pageNumber="136">
Subadult male
<typeStatus id="54FB8829FF81FF86BA21FE86DF11FEAA" box="[521,617,260,285]" pageId="3" pageNumber="136" type="holotype">holotype</typeStatus>
</emphasis>
.
<emphasis id="B934EA99FF81FF86BA50FE86DFCAFEAA" box="[632,690,260,285]" italics="true" pageId="3" pageNumber="136">Body</emphasis>
(
<figureCitation id="137B2A0EFF81FF86BAE8FE86DE7BFEAB" box="[704,771,260,285]" captionStart="FIGURE 1" captionStartId="1.[151,250,1952,1974]" captionTargetBox="[151,1435,196,1928]" captionTargetId="figure@1.[151,1436,195,1928]" captionTargetPageId="1" captionText="FIGURE 1. Platycuma bamberconfabulor sp. nov. holotype subadult male (NIWA 807091). A, side view; B, dorsal view; C, antenna; D, maxilliped 1; E, maxilliped 2; F, maxilliped 3." httpUri="https://zenodo.org/record/243654/files/figure.png" pageId="3" pageNumber="136">Figs 1</figureCitation>
A, 1B) white.
<emphasis id="B934EA99FF81FF86BB81FE87D96FFEAB" box="[937,1047,261,284]" italics="true" pageId="3" pageNumber="136">Carapace</emphasis>
nearly circular when viewed from above, slightly wider posteriorly, anterior margin excavate; overlapping pereonites 1 and 2; highest about midway along length, with shallow paired posterior swellings extending ventrally to lateral lamellar margin; pseudorostral lobes extending in front of obsolete eyelobe; antennal notch broad, anteroventral corner without teeth; lateral lamellar margin extends from anteroventral corner to posterior margin.
<emphasis id="B934EA99FF81FF86BB94FE16DE86FE1A" box="[956,1022,404,429]" italics="true" pageId="3" pageNumber="136">Pleon</emphasis>
about half body length; pereonites 4 and 5 and pleonites 1 through 4 with paired dorsolateral keels; pleonite 4 and 5 subequal.
</paragraph>
<paragraph id="8BFF368BFF81FF86B8BFFE5EDC02FD8A" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="136">
<emphasis id="B934EA99FF81FF86B8BFFE5EDC71FE42" box="[151,265,476,501]" italics="true" pageId="3" pageNumber="136">Antennule</emphasis>
(
<figureCitation id="137B2A0EFF81FF86B931FE5EDC20FE43" box="[281,344,476,501]" captionStart="FIGURE 1" captionStartId="1.[151,250,1952,1974]" captionTargetBox="[151,1435,196,1928]" captionTargetId="figure@1.[151,1436,195,1928]" captionTargetPageId="1" captionText="FIGURE 1. Platycuma bamberconfabulor sp. nov. holotype subadult male (NIWA 807091). A, side view; B, dorsal view; C, antenna; D, maxilliped 1; E, maxilliped 2; F, maxilliped 3." httpUri="https://zenodo.org/record/243654/files/figure.png" pageId="3" pageNumber="136">Fig. 1</figureCitation>
C) not geniculate; basal article of peduncle slightly shorter than articles 2 and 3 combined, with terminal seta; accessory flagellum minute, of two articles; main flagellum of three articles, distal two articles with one aesthetasc each.
</paragraph>
<paragraph id="8BFF368BFF81FF86B8EFFDCADC96FD1F" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="136">
<emphasis id="B934EA99FF81FF86B8EFFDCADC5DFDE8" box="[199,293,584,607]" italics="true" pageId="3" pageNumber="136">Antenna</emphasis>
not illustrated, immature, without annulations or setae, but extending past posterior border of carapace, suggesting the individual is one molt from adult, and would be expected to have a medium to long antennal flagellum as an adult.
</paragraph>
<paragraph id="8BFF368BFF81FF86B8EFFD36DF92FC12" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="136">
<emphasis id="B934EA99FF81FF86B8EFFD36DC22FD7B" box="[199,346,692,717]" italics="true" pageId="3" pageNumber="136">Mouth parts:</emphasis>
Mandibles and maxillae not illustrated, not dissected in order to preserve integrity of carapace.
<emphasis id="B934EA99FF81FF86B8BFFD55DC5FFD47" box="[151,295,727,752]" italics="true" pageId="3" pageNumber="136">Maxilliped 1</emphasis>
(
<figureCitation id="137B2A0EFF81FF86B911FD55DC02FD47" box="[313,378,727,752]" captionStart="FIGURE 1" captionStartId="1.[151,250,1952,1974]" captionTargetBox="[151,1435,196,1928]" captionTargetId="figure@1.[151,1436,195,1928]" captionTargetPageId="1" captionText="FIGURE 1. Platycuma bamberconfabulor sp. nov. holotype subadult male (NIWA 807091). A, side view; B, dorsal view; C, antenna; D, maxilliped 1; E, maxilliped 2; F, maxilliped 3." httpUri="https://zenodo.org/record/243654/files/figure.png" pageId="3" pageNumber="136">Fig. 1</figureCitation>
D) basis wide, dorsomedial ridge armed with four plumose setae, endite simple, with single terminal acuminate seta; ischium not visible; merus shorter than carpus; carpus with few simple setae on ventral surface; propodus half length of carpus, with cluster of pappose setae and one plumose seta distally.
<emphasis id="B934EA99FF81FF86BD24FC9DD8E4FC8F" box="[1292,1436,799,824]" italics="true" pageId="3" pageNumber="136">Maxilliped 2</emphasis>
(
<figureCitation id="137B2A0EFF81FF86B8B7FCC6DDA6FCEB" box="[159,222,836,861]" captionStart="FIGURE 1" captionStartId="1.[151,250,1952,1974]" captionTargetBox="[151,1435,196,1928]" captionTargetId="figure@1.[151,1436,195,1928]" captionTargetPageId="1" captionText="FIGURE 1. Platycuma bamberconfabulor sp. nov. holotype subadult male (NIWA 807091). A, side view; B, dorsal view; C, antenna; D, maxilliped 1; E, maxilliped 2; F, maxilliped 3." httpUri="https://zenodo.org/record/243654/files/figure.png" pageId="3" pageNumber="136">Fig. 1</figureCitation>
E) basis equal in length to remainder of appendage, with one short and one elongate plumose seta distally; merus, carpus, and propodus subequal in length, with simple setae along lateral margins; propodus with 3 claw-like setae on inner margin, several plumose setae distally.
</paragraph>
<paragraph id="8BFF368BFF81FF86B8EFFC2DDCC6FB82" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="136">
<emphasis id="B934EA99FF81FF86B8EFFC2DDC2CFC7F" box="[199,340,943,968]" italics="true" pageId="3" pageNumber="136">Maxilliped 3</emphasis>
(
<figureCitation id="137B2A0EFF81FF86B94BFC2DDCD9FC7F" box="[355,417,943,968]" captionStart="FIGURE 1" captionStartId="1.[151,250,1952,1974]" captionTargetBox="[151,1435,196,1928]" captionTargetId="figure@1.[151,1436,195,1928]" captionTargetPageId="1" captionText="FIGURE 1. Platycuma bamberconfabulor sp. nov. holotype subadult male (NIWA 807091). A, side view; B, dorsal view; C, antenna; D, maxilliped 1; E, maxilliped 2; F, maxilliped 3." httpUri="https://zenodo.org/record/243654/files/figure.png" pageId="3" pageNumber="136">Fig. 1</figureCitation>
F) basis subequal in length to remainder of appendage, with many short, simple setae along ventral and dorsal margins, one long plumose seta distally; merus and carpus with plumose setae on ventral margins and distally; propodus longer than merus, with single simple seta terminally; dactyl with cluster of simple, claw-like setae terminally.
</paragraph>
<paragraph id="8BFF368BFF81FF86B8EFFBBDD925FBCB" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="136">
<emphasis id="B934EA99FF81FF86B8EFFBBDDC46FBEF" box="[199,318,1087,1112]" italics="true" pageId="3" pageNumber="136">Pereopods</emphasis>
(
<figureCitation id="137B2A0EFF81FF86B978FBBDDCE3FBEF" box="[336,411,1087,1112]" captionStart="FIGURE 2" captionStartId="2.[151,250,1971,1993]" captionTargetBox="[159,1431,193,1955]" captionTargetId="figure@2.[159,1431,193,1956]" captionTargetPageId="2" captionText="FIGURE 2. Platycuma bamberconfabulor sp. nov. holotype subadult male (NIWA 807091). A, pereopod 1; B, pereopod 2; C, pereopod 3; D, pereopod 4; E, pereopod 5; F, pleonite 6 and uropods." httpUri="https://zenodo.org/record/243655/files/figure.png" pageId="3" pageNumber="136">Figs 2</figureCitation>
A–E). Pereopods 1, 3–5 typical of the genus, pereopods 1–4 with exopods. Pereopod 2 carpus slightly shorter than dactylus. All pereopods with few simple or plumose setae.
</paragraph>
<paragraph id="8BFF368BFF81FF86B8EFFB05D9EFFB72" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="136">
<emphasis id="B934EA99FF81FF86B8EFFB05DC50FB17" box="[199,296,1159,1184]" italics="true" pageId="3" pageNumber="136">Uropods</emphasis>
(
<figureCitation id="137B2A0EFF81FF86B915FB05DCFEFB17" box="[317,390,1159,1184]" captionStart="FIGURE 2" captionStartId="2.[151,250,1971,1993]" captionTargetBox="[159,1431,193,1955]" captionTargetId="figure@2.[159,1431,193,1956]" captionTargetPageId="2" captionText="FIGURE 2. Platycuma bamberconfabulor sp. nov. holotype subadult male (NIWA 807091). A, pereopod 1; B, pereopod 2; C, pereopod 3; D, pereopod 4; E, pereopod 5; F, pleonite 6 and uropods." httpUri="https://zenodo.org/record/243655/files/figure.png" pageId="3" pageNumber="136">Fig. 2</figureCitation>
F). Uropod peduncle 1.7 times length of pleonite 6, scarcely longer than endopod, with serrated inner margin; endopod longer than exopod, with few simple setae on inner margin.
</paragraph>
</subSubSection>
<subSubSection id="C35A6500FF81FF86B8EFFB4DDE1DFB5F" box="[199,869,1231,1256]" pageId="3" pageNumber="136" type="distribution">
<paragraph id="8BFF368BFF81FF86B8EFFB4DDE1DFB5F" blockId="3.[151,1437,151,2013]" box="[199,869,1231,1256]" pageId="3" pageNumber="136">
<emphasis id="B934EA99FF81FF86B8EFFB4DDC18FB5F" bold="true" box="[199,352,1231,1256]" pageId="3" pageNumber="136">Distribution.</emphasis>
Ross Sea,
<collectingCountry id="F357761BFF81FF86B9F3FB4DDF2BFB5F" box="[475,595,1231,1256]" name="Antarctica" pageId="3" pageNumber="136">Antarctica</collectingCountry>
, from the
<typeStatus id="54FB8829FF81FF86BAECFB4DDE5EFB5F" box="[708,806,1231,1256]" pageId="3" pageNumber="136" type="holotype">holotype</typeStatus>
only.
</paragraph>
</subSubSection>
<subSubSection id="C35A6500FF81FF81B8EFFB76D974FCA2" lastPageId="4" lastPageNumber="137" pageId="3" pageNumber="136" type="discussion">
<paragraph id="8BFF368BFF81FF86B8EFFB76DFFCFA2B" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="136">
<emphasis id="B934EA99FF81FF86B8EFFB76DC43FABA" bold="true" box="[199,315,1268,1293]" pageId="3" pageNumber="136">Remarks.</emphasis>
The new species described here has a subequal pleonite 4 and 5, while in the other species in the genus pleonite 4 is shorter than pleonite 5. The new species is most similar to
<taxonomicName id="4C404D08FF81FF86BC3BFA95D9BEFA87" box="[1043,1222,1303,1328]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="holti">
<emphasis id="B934EA99FF81FF86BC3BFA95D9BEFA87" box="[1043,1222,1303,1328]" italics="true" pageId="3" pageNumber="136">Platycuma holti</emphasis>
</taxonomicName>
in having a nearly uniformly wide carapace with the anterior margin excavate in dorsal view in this case with a little more curvature than in
<emphasis id="B934EA99FF81FF86B8C4FAE3DC40FACF" box="[236,312,1375,1400]" italics="true" pageId="3" pageNumber="136">P. h ol t i</emphasis>
Also, in
<taxonomicName id="4C404D08FF81FF86B98CFAE3DC8CFACF" box="[420,500,1375,1400]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="holti">
<emphasis id="B934EA99FF81FF86B98CFAE3DC8CFACF" box="[420,500,1375,1400]" italics="true" pageId="3" pageNumber="136">P. holti</emphasis>
</taxonomicName>
, the carpus of maxilliped 1, carpus of pereopod 1 and the uropod peduncles are all longer than in
<taxonomicName id="4C404D08FF81FF86B911FA07DF5CFA2A" box="[313,548,1412,1437]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="bamberconfabulor" status="sp. nov.">
<emphasis id="B934EA99FF81FF86B911FA07DF5CFA2A" box="[313,548,1412,1437]" italics="true" pageId="3" pageNumber="136">P. bamberconfabulor</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A20757E2FF81FF86BA03FA06DFFCFA2B" box="[555,644,1412,1437]" pageId="3" pageNumber="136" rank="species">
<emphasis id="B934EA99FF81FF86BA03FA06DF06FA2A" bold="true" box="[555,638,1412,1437]" pageId="3" pageNumber="136">sp. nov</emphasis>
.
</taxonomicNameLabel>
</paragraph>
<paragraph id="8BFF368BFF81FF86B8EFFA25DFC7F9E7" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="136">
Species in the genus
<taxonomicName id="4C404D08FF81FF86B999FA25DF51FA77" box="[433,553,1447,1472]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="genus">
<emphasis id="B934EA99FF81FF86B999FA25DF51FA77" box="[433,553,1447,1472]" italics="true" pageId="3" pageNumber="136">Platycuma</emphasis>
</taxonomicName>
can be divided into two groups, those with a laterally expanded and somewhat dorsally flattened carapace (
<emphasis id="B934EA99FF81FF86B9F4FA4FDF52FA53" box="[476,554,1484,1509]" italics="true" pageId="3" pageNumber="136">P. ho l t i</emphasis>
,
<taxonomicName id="4C404D08FF81FF86BA16FA4FDF9BFA52" box="[574,739,1484,1509]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="triangularis">
<emphasis id="B934EA99FF81FF86BA16FA4FDF9BFA52" box="[574,739,1484,1509]" italics="true" pageId="3" pageNumber="136">P. triangularis</emphasis>
</taxonomicName>
, and
<taxonomicName id="4C404D08FF81FF86BB0EFA4FDEC2FA53" box="[806,954,1485,1508]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="japonicum">
<emphasis id="B934EA99FF81FF86BB0EFA4FDEC2FA53" box="[806,954,1485,1508]" italics="true" pageId="3" pageNumber="136">P. japonicum</emphasis>
</taxonomicName>
) and those with a carapace typical of the family (
<taxonomicName id="4C404D08FF81FF86B8DDFA73DC0DF9BF" box="[245,373,1519,1544]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="sandersi">
<emphasis id="B934EA99FF81FF86B8DDFA73DC0DF9BF" box="[245,373,1519,1544]" italics="true" pageId="3" pageNumber="136">P. sandersi</emphasis>
</taxonomicName>
,
<taxonomicName id="4C404D08FF81FF86B9AFFA73DC87F9BF" box="[391,511,1519,1544]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="hessleri">
<emphasis id="B934EA99FF81FF86B9AFFA73DC87F9BF" box="[391,511,1519,1544]" italics="true" pageId="3" pageNumber="136">P. hessleri</emphasis>
</taxonomicName>
,
<taxonomicName id="4C404D08FF81FF86BA3AFA73DFF4F9BF" box="[530,652,1519,1544]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="candida">
<emphasis id="B934EA99FF81FF86BA3AFA73DFF4F9BF" box="[530,652,1519,1544]" italics="true" pageId="3" pageNumber="136">P. candida</emphasis>
</taxonomicName>
, and
<taxonomicName id="4C404D08FF81FF86BAFCFA73DE3AF9BF" box="[724,834,1519,1544]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="lineata">
<emphasis id="B934EA99FF81FF86BAFCFA73DE3AF9BF" box="[724,834,1519,1544]" italics="true" pageId="3" pageNumber="136">P. lineata</emphasis>
</taxonomicName>
). All species, however, have the coiled gut that is diagnostic of the genus. There do not appear to be any additional morphological features suggesting the genus should be divided on the basis of carapace shape.
</paragraph>
<paragraph id="8BFF368BFF81FF86B8EFF9DEDCD2F90A" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="136">
The new species is a subadult male, and the state of development of the antenna suggests that the adult male will have an antenna that is longer than the antennae described for the two species (
<taxonomicName id="4C404D08FF81FF86BC1EF903D9FDF92F" box="[1078,1157,1663,1688]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="holti">
<emphasis id="B934EA99FF81FF86BC1EF903D9FDF92F" box="[1078,1157,1663,1688]" italics="true" pageId="3" pageNumber="136">P. holti</emphasis>
</taxonomicName>
and
<taxonomicName id="4C404D08FF81FF86BC91F903D853F92F" box="[1209,1323,1663,1688]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="hessleri">
<emphasis id="B934EA99FF81FF86BC91F903D853F92F" box="[1209,1323,1663,1688]" italics="true" pageId="3" pageNumber="136">P. hessleri</emphasis>
</taxonomicName>
) in which the adult male is known.
</paragraph>
<paragraph id="8BFF368BFF81FF81B8EFF945DF74FEF7" blockId="3.[151,1437,151,2013]" lastBlockId="4.[151,1437,151,789]" lastPageId="4" lastPageNumber="137" pageId="3" pageNumber="136">
<emphasis id="B934EA99FF81FF86B8EFF945DF28F957" bold="true" box="[199,592,1735,1760]" pageId="3" pageNumber="136">
A note on the gut of
<taxonomicName id="4C404D08FF81FF86B9E6F945DF31F957" box="[462,585,1735,1760]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="genus">
<emphasis id="B934EA99FF81FF86B9E6F945DF31F957" bold="true" box="[462,585,1735,1760]" italics="true" pageId="3" pageNumber="136">Platycuma</emphasis>
</taxonomicName>
.
</emphasis>
Species of
<taxonomicName id="4C404D08FF81FF86BAF4F945DE2CF957" box="[732,852,1735,1760]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="genus">
<emphasis id="B934EA99FF81FF86BAF4F945DE2CF957" box="[732,852,1735,1760]" italics="true" pageId="3" pageNumber="136">Platycuma</emphasis>
</taxonomicName>
are the only known cumaceans with a coiled gut.
<bibRefCitation id="EFD14B7AFF81FF86B8BFF96EDC3DF8B2" author="Calman" box="[151,325,1772,1797]" pageId="3" pageNumber="136" refString="Calman, W. T. (1905) The marine fauna of the west coast of Ireland, Part IV, Cumacea. Fisheries Ireland, Scientific Investigations, 1904. Department of Agriculture and Technical Instruction for Ireland, Fisheries Branch, 1, 4, 1 - 52. [plate. I - V]" type="journal article" year="1905">Calman (1905)</bibRefCitation>
describes in detail the structure for
<taxonomicName id="4C404D08FF81FF86BB29F96FDE2EF8B2" box="[769,854,1772,1797]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="3" pageNumber="136" phylum="Arthropoda" rank="species" species="holti">
<emphasis id="B934EA99FF81FF86BB29F96FDE2EF8B2" box="[769,854,1772,1797]" italics="true" pageId="3" pageNumber="136">P. holti</emphasis>
</taxonomicName>
: “The anterior portion of the gut, corresponding probably to the chitin-lined fore-gut, runs nearly straight backwards, with a slight inclination to the left. Behind the middle of the carapace it turns sharply to the right, then curving upwards and forwards it forms a right-handed spiral of two and a half turns, not quite in a plane, the outermost whorl lying a little to the left and passing straight backwards into the abdomen. The straight anterior portion is a little wider than the rest, and there is a slight constriction at the beginning of the spiral, beyond which the diameter remains fairly uniform. The whole of this portion of the gut is distended with a very fine-grained mud, in which the only recognizable particles of organic origin are numerous coccoliths and fragments of the shells of
<emphasis id="B934EA99FF86FF81BB56FF15DE90FF07" box="[894,1000,151,176]" italics="true" pageId="4" pageNumber="137">Peridinia</emphasis>
. No trace of hepatic caeca could be discovered. While it is possible and even probable that some vestiges of them may have escaped detection, it is certain that they must be exceedingly reduced” (p. 33). No additional details are available from other species in the genus, but drawings of the gut for other species in the genus show some coiling, but not to the extent of forming a spiral as documented by Calman.
</paragraph>
<paragraph id="8BFF368BFF86FF81B8EFFECED974FCA2" blockId="4.[151,1437,151,789]" pageId="4" pageNumber="137">
The question thus is, why this peculiar structure of the gut?
<taxonomicName id="4C404D08FF86FF81BB76FECED977FED2" box="[862,1039,332,357]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="4" pageNumber="137" phylum="Arthropoda" rank="species" species="holti">
<emphasis id="B934EA99FF86FF81BB76FECED977FED2" box="[862,1039,332,357]" italics="true" pageId="4" pageNumber="137">Platycuma holti</emphasis>
</taxonomicName>
is clearly a deposit-feeding animal, ingesting large amounts of fine-grained sediment and it is widely known that deep-sea sediments do not have high organic matter content. Thus, to extract the greatest amount of useful organic content from such sediments, one of two strategies needs to be adopted. The more typical one used by most crustaceans, is to process the sediment in the foregut and then to filter the contents, sending only the slurry of organic molecules and liquid into the hepatic caeca (
<bibRefCitation id="EFD14B7AFF86FF81B8B6FE7DDC39FDAF" author="Watling" box="[158,321,511,536]" pageId="4" pageNumber="137" refString="Watling, L. (2013) Feeding and digestive system. In: Watling, L. &amp; Thiel, M. (Eds.), Functional Morphology and Diversity. The Natural History of Crustacea, Vol. 1. Oxford University Press, New York, pp. 237 - 260." type="book" year="2013">Watling 2013</bibRefCitation>
). Since, for some reason,
<taxonomicName id="4C404D08FF86FF81BA5EFE7DDF96FDAF" box="[630,750,511,536]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="4" pageNumber="137" phylum="Arthropoda" rank="genus">
<emphasis id="B934EA99FF86FF81BA5EFE7DDF96FDAF" box="[630,750,511,536]" italics="true" pageId="4" pageNumber="137">Platycuma</emphasis>
</taxonomicName>
has lost or reduced its hepatic caeca, another strategy for processing low organic content sediment was needed: to greatly elongate the gut to prolong the action of digestive enzymes, allowing more time for digestion to occur (
<bibRefCitation id="EFD14B7AFF86FF81BAC5FDCADEFBFDD7" author="Jumars" box="[749,899,584,608]" pageId="4" pageNumber="137" refString="Jumars, P. A. (2000) Animal guts as ideal chemical reactors: maximizing absorption rates. American Naturalist, 155, 527 - 543. http: // dx. doi. org / 10.1086 / 303333" type="journal article" year="2000">Jumars 2000</bibRefCitation>
). A clue that this might be the case comes from Calman’s description of the gut. He notes that there is a slight constriction at the beginning of the spiral; this is probably the transition from foregut to midgut, the latter being excessively long. In other animal groups, the strategy of elongating the midgut in deposit feeders is common, for example, in urchins and polychaetes (
<bibRefCitation id="EFD14B7AFF86FF81BD63FD36DDACFD47" author="Jumars" pageId="4" pageNumber="137" refString="Jumars, P. A. (2000) Animal guts as ideal chemical reactors: maximizing absorption rates. American Naturalist, 155, 527 - 543. http: // dx. doi. org / 10.1086 / 303333" type="journal article" year="2000">Jumars 2000</bibRefCitation>
). Of course, in the case of
<taxonomicName id="4C404D08FF86FF81BA3FFD55DFF7FD47" box="[535,655,727,752]" class="Malacostraca" family="Nannastacidae" genus="Platycuma" kingdom="Animalia" order="Cumacea" pageId="4" pageNumber="137" phylum="Arthropoda" rank="genus">
<emphasis id="B934EA99FF86FF81BA3FFD55DFF7FD47" box="[535,655,727,752]" italics="true" pageId="4" pageNumber="137">Platycuma</emphasis>
</taxonomicName>
, it is impossible to know if the gut elongation developed due to a gradual shortening of the hepatic caeca, or whether it was the other way round.
</paragraph>
</subSubSection>
</treatment>
</document>
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