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<document id="F60DE96A5280450052A7A5D78F824DD3" ID-ISSN="1175­5334" IM.materialsCitations_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1626206819740" checkinUser="felipe" docAuthor="Mclelland, Jerry A." docDate="2007" docId="396B8796FF972B0DFF6628F1FB6EA626" docLanguage="en" docName="zt01599p099.pdf" docOrigin="Zootaxa 1599" docStyle="DocumentStyle:6581673A57F01A3145754A1E615EDFF0.4:Zootaxa.2007-2008.journal_article" docStyleId="6581673A57F01A3145754A1E615EDFF0" docStyleName="Zootaxa.2007-2008.journal_article" docStyleVersion="4" docTitle="Pseudotanais nipponicus Mclelland 2007, n.sp." docType="treatment" docVersion="2" lastPageNumber="98" masterDocId="C552FFEEFF912B06FFF12B53FFF2A254" masterDocTitle="Family Pseudotanaidae Sieg, 1976 *" masterLastPageNumber="99" masterPageNumber="87" pageNumber="93" updateTime="1699004637218" updateUser="plazi" zenodo-license-document="CLOSED">
<mods:mods id="905347FA9C8CE3A818F50D621549F81C" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="7A51D12C6F923ADF77576EBA543F2A16">
<mods:title id="B9DA4B2BCA0102DFC53B47B99DC1C5D9">Family Pseudotanaidae Sieg, 1976 *</mods:title>
</mods:titleInfo>
<mods:name id="13F59713EB0C1C31731C1F29E7157CAE" type="personal">
<mods:role id="7F028E6652DE5DA0967690CCCA6D2CC4">
<mods:roleTerm id="1DCD7D5AA8F9D96DA372E8B0619DE3C3">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="7BEE2D7403238DE80737B763807C2D87">Mclelland, Jerry A.</mods:namePart>
</mods:name>
<mods:typeOfResource id="C2EDA23B3868EE2E08FF9B02DA2D12DE">text</mods:typeOfResource>
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<mods:title id="4627336B7A2BA4C1FED11903F577C9DE">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="FFA190D78A6F2CBAE05BF1C953FCE40E">
<mods:date id="47E186A4943820DA8F91EF76BB555484">2007</mods:date>
<mods:detail id="8E2D77FC0E36E9DA4ECCEC64ED46C3BA" type="pubDate">
<mods:number id="560C194D2E58F834E06EA4DDEE8F9F40">2007-09-28</mods:number>
</mods:detail>
<mods:detail id="38397AEFE5857FD9923470589D92AAF8" type="volume">
<mods:number id="7680BEE32023E856710567B60D2542CA">1599</mods:number>
</mods:detail>
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<mods:start id="4EFC0718C99A54D85849626D38E4617D">87</mods:start>
<mods:end id="C11B40A4CD6B00A93BF52C24BC55DF5A">99</mods:end>
</mods:extent>
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</mods:relatedItem>
<mods:classification id="E151EC50945CB0EB3E7C1B8D66F7DC6B">journal article</mods:classification>
<mods:identifier id="2712D153312EC9C73458E9EEB9B6C54B" type="ISSN">1175­5334</mods:identifier>
<mods:identifier id="D4B45945672D8E9C03967B4BD30B4686" type="ZooBank">A57DCB0E-EEDF-49CD-9BEF-33144D64B50D</mods:identifier>
</mods:mods>
<treatment id="396B8796FF972B0DFF6628F1FB6EA626" LSID="urn:lsid:plazi:treatment:396B8796FF972B0DFF6628F1FB6EA626" httpUri="http://treatment.plazi.org/id/396B8796FF972B0DFF6628F1FB6EA626" lastPageId="11" lastPageNumber="98" pageId="6" pageNumber="93">
<subSubSection id="F9D8650BFF972B00FF6628F1FDFCA1E8" box="[151,526,930,956]" pageId="6" pageNumber="93" type="nomenclature">
<paragraph id="B17D3680FF972B00FF6628F1FDFCA1E8" blockId="6.[151,616,826,991]" box="[151,526,930,956]" pageId="6" pageNumber="93">
<heading id="EA3581ECFF972B00FF6628F1FDFCA1E8" bold="true" box="[151,526,930,956]" fontSize="11" level="1" pageId="6" pageNumber="93" reason="1">
<emphasis id="83B6EA92FF972B00FF6628F1FDFCA1E8" bold="true" box="[151,526,930,956]" pageId="6" pageNumber="93">
<taxonomicName id="76C24D03FF972B00FF6628F1FE37A1E8" ID-CoL="78HWY" authority="Mclelland, 2007" authorityName="Mclelland" authorityYear="2007" box="[151,453,930,956]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="6" pageNumber="93" phylum="Arthropoda" rank="species" species="nipponicus" status="sp. nov.">
<emphasis id="83B6EA92FF972B00FF6628F1FE37A1E8" bold="true" box="[151,453,930,956]" italics="true" pageId="6" pageNumber="93">Pseudotanais nipponicus</emphasis>
</taxonomicName>
,
<taxonomicNameLabel id="988557E9FF972B00FE2228F1FDFCA1E8" box="[467,526,930,956]" pageId="6" pageNumber="93" rank="species">n.sp.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="F9D8650BFF972B00FF662896FED0A18B" box="[151,290,965,991]" pageId="6" pageNumber="93" type="description">
<paragraph id="B17D3680FF972B00FF662896FED0A18B" blockId="6.[151,616,826,991]" box="[151,290,965,991]" pageId="6" pageNumber="93">
<figureCitation id="29F92A05FF972B00FF662896FED0A18B" box="[151,290,965,991]" captionStart-0="FIGURE 4" captionStart-1="FIGURE 5" captionStart-2="FIGURE 6" captionStartId-0="7.[151,254,1928,1952]" captionStartId-1="9.[151,254,1849,1873]" captionStartId-2="10.[151,254,1725,1749]" captionTargetBox-0="[181,1426,359,1884]" captionTargetBox-1="[157,1391,214,1806]" captionTargetBox-2="[170,1430,223,1703]" captionTargetId-0="figure-105@7.[161,1441,313,1912]" captionTargetId-1="figure-41@9.[143,1443,197,1823]" captionTargetId-2="figure-125@10.[143,1443,194,1820]" captionTargetPageId-0="7" captionTargetPageId-1="9" captionTargetPageId-2="10" captionText-0="FIGURE 4. Pseudotanais nipponicus, n.sp. A, holotype female, dorsal; B, holotype female, lateral; C, cheliped, arrow shows location of comb setae on reverse side; D, antennule; E, antenna; F, pleopods; G, uropods. Scale: A, B = 0.5mm, C–G = 0.2mm" captionText-1="FIGURE 5. Pseudotanais nipponicus, n.sp. A, left mandible; B, right mandible; C, maxilliped; D, maxillule endite, inset shows spiniform seta with setule. Scale = 0.2mm." captionText-2="FIGURE 6. Pseudotanais nipponicus, n.sp. A–F, pereopods 1–6 respectively. Inset at B shows detail of modified carpal seta. Inset at D shows detail of setulate ischium seta. Scale = 0.2mm." pageId="6" pageNumber="93">Figures 4–6</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="F9D8650BFF972B00FF662F47FB77A688" pageId="6" pageNumber="93" type="materials_examined">
<paragraph id="B17D3680FF972B00FF662F47FB77A688" blockId="6.[151,1438,1044,2004]" pageId="6" pageNumber="93">
<emphasis id="83B6EA92FF972B00FF662F47FE69A665" bold="true" box="[151,411,1044,1073]" pageId="6" pageNumber="93">Material examined</emphasis>
.
<materialsCitation id="01AA3CDDFF972B00FE5C2F47FF03A6D2" collectingDate="2001-09-16" latitude="42.397167" location="Kamchatka Trench" longLatPrecision="11" longitude="-145.51767" municipality="North Pacific" pageId="6" pageNumber="93" specimenCount="1" typeStatus="holotype">
<emphasis id="83B6EA92FF972B00FE5C2F47FDDBA665" bold="true" box="[429,553,1044,1073]" pageId="6" pageNumber="93">
<typeStatus id="6E798822FF972B00FE5C2F47FDDBA665" box="[429,553,1044,1073]" pageId="6" pageNumber="93" type="holotype">Holotype</typeStatus>
</emphasis>
, non-ovigerous female,
<quantity id="763A9B65FF972B00FC972F46FC38A665" box="[870,970,1045,1073]" metricMagnitude="-3" metricUnit="m" metricValue="2.2" pageId="6" pageNumber="93" unit="mm" value="2.2">2.2 mm</quantity>
(KMNH IvR 500.189), station XR-5,
<geoCoordinate id="D4F65047FF972B00FF662F13FEC2A608" box="[151,304,1088,1116]" degrees="42" direction="north" minutes="23.83" orientation="latitude" pageId="6" pageNumber="93" precision="9" value="42.397167">42°23.83’N</geoCoordinate>
,
<geoCoordinate id="D4F65047FF972B00FEB72F13FE01A608" box="[326,499,1088,1116]" degrees="145" direction="west" minutes="31.06" orientation="longitude" pageId="6" pageNumber="93" precision="9" value="-145.51767">145°31.06’W</geoCoordinate>
,
<location id="B41D605BFF972B00FDF82F13FCFAA608" LSID="urn:lsid:plazi:treatment:396B8796FF972B0DFF6628F1FB6EA626:B41D605BFF972B00FDF82F13FCFAA608" box="[521,776,1088,1116]" latitude="42.397167" longLatPrecision="11" longitude="-145.51767" municipality="North Pacific" name="Kamchatka Trench" pageId="6" pageNumber="93">Kamchatka Trench</location>
,
<collectingMunicipality id="5119ACFAFF972B00FCEC2F13FC26A608" box="[797,980,1088,1116]" pageId="6" pageNumber="93">North Pacific</collectingMunicipality>
,
<date id="C57C1040FF972B00FC1B2F13FB05A608" box="[1002,1271,1088,1116]" pageId="6" pageNumber="93" value="2001-09-16">
<collectingDate id="D538E9A8FF972B00FC1B2F13FB05A608" box="[1002,1271,1088,1116]" pageId="6" pageNumber="93" value="2001-09-16">16 September 2001</collectingDate>
</date>
, 3145–3265 metres
</materialsCitation>
.
<emphasis id="83B6EA92FF972B00FF0C2F39FE74A6D3" bold="true" box="[253,390,1130,1159]" pageId="6" pageNumber="93">
<typeStatus id="6E798822FF972B00FF0C2F39FE74A6D3" box="[253,390,1130,1159]" pageId="6" pageNumber="93" type="paratype">Paratypes</typeStatus>
</emphasis>
:
<specimenCount id="A7C4FD09FF972B00FE662F39FDF9A6D2" box="[407,523,1130,1158]" pageId="6" pageNumber="93" type="female">1 female</specimenCount>
,
<quantity id="763A9B65FF972B00FDE62F39FD88A6D2" box="[535,634,1130,1158]" metricMagnitude="-3" metricUnit="m" metricValue="1.4" pageId="6" pageNumber="93" unit="mm" value="1.4">1.4 mm</quantity>
and
<specimenCount id="A7C4FD09FF972B00FD4B2F39FCCEA6D2" box="[698,828,1130,1158]" pageId="6" pageNumber="93" type="juvenile">1 juvenile</specimenCount>
,
<quantity id="763A9B65FF972B00FCBB2F39FC5FA6D2" box="[842,941,1130,1158]" metricMagnitude="-4" metricUnit="m" metricValue="8.0" pageId="6" pageNumber="93" unit="mm" value="0.8">0.8 mm</quantity>
(KMNH IvR 500.190), from type locality;
<specimenCount id="A7C4FD09FF972B00FF3A2FC6FECDA6E5" box="[203,319,1173,1201]" pageId="6" pageNumber="93" type="female">1 female</specimenCount>
,
<quantity id="763A9B65FF972B00FEBC2FC6FE43A6E5" box="[333,433,1173,1201]" metricMagnitude="-3" metricUnit="m" metricValue="1.6" pageId="6" pageNumber="93" unit="mm" value="1.6">1.6 mm</quantity>
(dissected and slide mounted; KMNH IvR 500.191), station XR-7, 42°12.87’–
<geoCoordinate id="D4F65047FF972B00FF662F93FEDFA688" box="[151,301,1216,1244]" degrees="42" direction="north" minutes="12.10" orientation="latitude" pageId="6" pageNumber="93" precision="9" value="42.201668">42°12.10’N</geoCoordinate>
145°33.93’–
<geoCoordinate id="D4F65047FF972B00FE272F93FD88A688" box="[470,634,1216,1244]" degrees="145" direction="east" minutes="32.05" orientation="longitude" pageId="6" pageNumber="93" precision="9" value="145.53416">145°32.05’E</geoCoordinate>
, 3853–3858 metres,
<date id="C57C1040FF972B00FC742F93FB73A688" box="[901,1153,1216,1244]" pageId="6" pageNumber="93" value="2001-09-17">17 September 2001</date>
.
</paragraph>
</subSubSection>
<subSubSection id="F9D8650BFF972B00FF372FB9FDBAA7F0" pageId="6" pageNumber="93" type="diagnosis">
<paragraph id="B17D3680FF972B00FF372FB9FDBAA7F0" blockId="6.[151,1438,1044,2004]" pageId="6" pageNumber="93">
<emphasis id="83B6EA92FF972B00FF372FB9FECCA750" bold="true" box="[198,318,1258,1284]" pageId="6" pageNumber="93">Diagnosis</emphasis>
.
<taxonomicName id="76C24D03FF972B00FEA32FB8FE02A750" authorityName="Sieg" authorityYear="1977" box="[338,496,1259,1284]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="6" pageNumber="93" phylum="Arthropoda" rank="genus">
<emphasis id="83B6EA92FF972B00FEA32FB8FE02A750" box="[338,496,1259,1284]" italics="true" pageId="6" pageNumber="93">Pseudotanais</emphasis>
</taxonomicName>
with carpal blade-like setae on pereopods 2–6 (those on pereopods 2 and 3 greater than half as long as propodus), pereopods 2 and 3 having terminal spiniform setae of propodus subequal to length of dactylus plus unguis, pereopods 5 and 6 having superior carpal setae as long or longer than propodus, pereopod 1 distal superior setae of merus and carpus of unequal lengths, and antenna articles 2 and 3 having short, stout spiniform setae.
</paragraph>
</subSubSection>
<subSubSection id="F9D8650BFF972B00FF372EE1FD7DA7A0" pageId="6" pageNumber="93" type="etymology">
<paragraph id="B17D3680FF972B00FF372EE1FD7DA7A0" blockId="6.[151,1438,1044,2004]" pageId="6" pageNumber="93">
<emphasis id="83B6EA92FF972B00FF372EE1FEB9A798" bold="true" box="[198,331,1458,1484]" pageId="6" pageNumber="93">Etymology</emphasis>
. The specific name refers to an alternate name for the island nation of
<collectingCountry id="C9D57610FF972B00FB6A2EE1FB13A798" box="[1179,1249,1458,1484]" name="Japan" pageId="6" pageNumber="93">Japan</collectingCountry>
, adjacent to the
<typeStatus id="6E798822FF972B00FF662E89FF3BA7A0" box="[151,201,1498,1524]" pageId="6" pageNumber="93">type</typeStatus>
locality in the northern Pacific Ocean.
</paragraph>
</subSubSection>
<subSubSection id="F9D8650BFF972B0DFF372D51FC3CA39E" lastPageId="11" lastPageNumber="98" pageId="6" pageNumber="93" type="description">
<paragraph id="B17D3680FF972B00FF372D51FD5FA410" blockId="6.[151,1438,1044,2004]" pageId="6" pageNumber="93">
<emphasis id="83B6EA92FF972B00FF372D51FE9AA448" bold="true" box="[198,360,1538,1564]" pageId="6" pageNumber="93">Description -</emphasis>
based on non-ovigerous female
<typeStatus id="6E798822FF972B00FD142D51FCB9A448" box="[741,843,1538,1564]" pageId="6" pageNumber="93" type="holotype">holotype</typeStatus>
and dissected
<typeStatus id="6E798822FF972B00FC072D51FBADA448" box="[1014,1119,1538,1564]" pageId="6" pageNumber="93" type="paratype">paratype</typeStatus>
. Body length
<quantity id="763A9B65FF972B00FAF12D51FA63A448" box="[1280,1425,1538,1564]" metricMagnitude="-3" metricUnit="m" metricValue="1.8" metricValueMax="2.2" metricValueMin="1.4" pageId="6" pageNumber="93" unit="mm" value="1.8" valueMax="2.2" valueMin="1.4">1.4–2.2 mm</quantity>
,
<emphasis id="83B6EA92FF972B00FF662D78FF21A410" box="[151,211,1579,1604]" italics="true" pageId="6" pageNumber="93">Body</emphasis>
(
<figureCitation id="29F92A05FF972B00FF122D79FE97A410" box="[227,357,1578,1604]" captionStart="FIGURE 4" captionStartId="7.[151,254,1928,1952]" captionTargetBox="[181,1426,359,1884]" captionTargetId="figure-105@7.[161,1441,313,1912]" captionTargetPageId="7" captionText="FIGURE 4. Pseudotanais nipponicus, n.sp. A, holotype female, dorsal; B, holotype female, lateral; C, cheliped, arrow shows location of comb setae on reverse side; D, antennule; E, antenna; F, pleopods; G, uropods. Scale: A, B = 0.5mm, C–G = 0.2mm" pageId="6" pageNumber="93">Figs. 4A,B</figureCitation>
) 3.7 times as long as broad.
</paragraph>
<paragraph id="B17D3680FF972B00FF372D00FBD9A4C0" blockId="6.[151,1438,1044,2004]" pageId="6" pageNumber="93">
<emphasis id="83B6EA92FF972B00FF372D00FE84A438" box="[198,374,1619,1644]" italics="true" pageId="6" pageNumber="93">Cephalothorax</emphasis>
shorter than pereonites 1–3, subtrapezoidal, narrowing anteriorly, about equal in width to pereon, with pair of antero-lateral setae, 16 % of total length; eyelobes absent.
</paragraph>
<paragraph id="B17D3680FF972B00FF662DF0FB04A4B0" blockId="6.[151,1438,1044,2004]" pageId="6" pageNumber="93">
<emphasis id="83B6EA92FF972B00FF662DF0FF18A4E8" box="[151,234,1699,1724]" italics="true" pageId="6" pageNumber="93">Pereon</emphasis>
63.9 % of total length, pereonite 1 abbreviated. Pereonites 1 and 4–6 with pair of dorso-lateral setae, 2–6 with pair of minute antero-lateral setae, and 4–5 with additional pair of medio-lateral setae.
</paragraph>
<paragraph id="B17D3680FF972B00FF662DA0FDF1A560" blockId="6.[151,1438,1044,2004]" pageId="6" pageNumber="93">
<emphasis id="83B6EA92FF972B00FF662DA0FF29A558" box="[151,219,1779,1804]" italics="true" pageId="6" pageNumber="93">Pleon</emphasis>
shorter than pereonites 5 and 6 combined, 18.7 % of total length. Pleonite 5 with pair of dorso-lateral and pair of medio-lateral setae.
</paragraph>
<paragraph id="B17D3680FF972B00FF372C10FEFEA5D0" blockId="6.[151,1438,1044,2004]" pageId="6" pageNumber="93">
<emphasis id="83B6EA92FF972B00FF372C10FEB0A508" box="[198,322,1859,1884]" italics="true" pageId="6" pageNumber="93">Pleotelson</emphasis>
subequal to pleonites 4–5, 6.9 % of total length, apex slightly produced, with pair of distolateral setae.
</paragraph>
<paragraph id="B17D3680FF972B01FF372CC0FCCFA356" blockId="6.[151,1438,1044,2004]" lastBlockId="7.[151,1436,152,258]" lastPageId="7" lastPageNumber="94" pageId="6" pageNumber="93">
<emphasis id="83B6EA92FF972B00FF372CC0FECFA5F8" box="[198,317,1939,1964]" italics="true" pageId="6" pageNumber="93">Antennule</emphasis>
(
<figureCitation id="29F92A05FF972B00FEBC2CC1FE5BA5F8" box="[333,425,1938,1964]" captionStart="FIGURE 4" captionStartId="7.[151,254,1928,1952]" captionTargetBox="[181,1426,359,1884]" captionTargetId="figure-105@7.[161,1441,313,1912]" captionTargetPageId="7" captionText="FIGURE 4. Pseudotanais nipponicus, n.sp. A, holotype female, dorsal; B, holotype female, lateral; C, cheliped, arrow shows location of comb setae on reverse side; D, antennule; E, antenna; F, pleopods; G, uropods. Scale: A, B = 0.5mm, C–G = 0.2mm" pageId="6" pageNumber="93">Fig. 4D</figureCitation>
) 22 % of body length, with three articles. First article 56.1 % of total length, 5.6 times as long as broad, with one long and five short medial simple setae, one short distal simple seta, two long unequal distal simple setae and two distal broom setae. Second article twice as long as broad, with one short and two long, unequal distal simple setae. Distal article 5.2 times as long as broad, terminating with two simple setae (one long, one short) and four bifid-tipped setae.
</paragraph>
<caption id="E5BD6608FF962B01FF662CDBFEC2A5BF" pageId="7" pageNumber="94" startId="7.[151,254,1928,1952]" targetBox="[181,1426,359,1884]" targetPageId="7">
<paragraph id="B17D3680FF962B01FF662CDBFEC2A5BF" blockId="7.[151,1436,1928,2027]" pageId="7" pageNumber="94">
<emphasis id="83B6EA92FF962B01FF662CDBFEE1A5F4" bold="true" box="[151,275,1928,1952]" pageId="7" pageNumber="94">FIGURE 4</emphasis>
.
<taxonomicName id="76C24D03FF962B01FED32CDBFDDCA5CB" authority="Mclelland, 2007" authorityName="Mclelland" authorityYear="2007" box="[290,558,1928,1951]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="7" pageNumber="94" phylum="Arthropoda" rank="species" species="nipponicus" status="sp. nov.">
<emphasis id="83B6EA92FF962B01FED32CDBFDDCA5CB" box="[290,558,1928,1951]" italics="true" pageId="7" pageNumber="94">Pseudotanais nipponicus</emphasis>
</taxonomicName>
,
<taxonomicNameLabel id="988557E9FF962B01FDCC2CDBFD82A5CB" box="[573,624,1928,1951]" pageId="7" pageNumber="94" rank="species">n.sp.</taxonomicNameLabel>
A, holotype female, dorsal; B, holotype female, lateral; C, cheliped, arrow shows location of comb setae on reverse side; D, antennule; E, antenna; F, pleopods; G, uropods. Scale: A, B = 0.5mm, C–G = 0.2mm
</paragraph>
</caption>
<paragraph id="B17D3680FF992B0EFF372BCBFDE3A306" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="95">
<emphasis id="83B6EA92FF992B0EFF372BCBFEDAA2E5" box="[198,296,152,177]" italics="true" pageId="8" pageNumber="95">Antenna</emphasis>
(
<figureCitation id="29F92A05FF992B0EFEC92BCBFE63A2E6" box="[312,401,152,178]" captionStart="FIGURE 4" captionStartId="7.[151,254,1928,1952]" captionTargetBox="[181,1426,359,1884]" captionTargetId="figure-105@7.[161,1441,313,1912]" captionTargetPageId="7" captionText="FIGURE 4. Pseudotanais nipponicus, n.sp. A, holotype female, dorsal; B, holotype female, lateral; C, cheliped, arrow shows location of comb setae on reverse side; D, antennule; E, antenna; F, pleopods; G, uropods. Scale: A, B = 0.5mm, C–G = 0.2mm" pageId="8" pageNumber="95">Fig. 4E</figureCitation>
) with six articles, 96.2 % length of antennule. Second article 1.1 times as long as broad, slightly shorter than third article, both articles distally with short, stout spiniform seta (larger on article 2). Fourth article 10.1 times as long as broad, with two long and one short distal simple setae, and three distal broom setae. Fifth article 4.3 times as long as broad, distally with one long simple seta. Sixth article small, terminating with four simple setae.
</paragraph>
<paragraph id="B17D3680FF992B0EFF372A33FE10A15E" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="95">
<emphasis id="83B6EA92FF992B0EFF372A33FEBDA32D" box="[198,335,352,377]" italics="true" pageId="8" pageNumber="95">Mouthparts</emphasis>
. Labrum not observed. Mandibles (
<figureCitation id="29F92A05FF992B0EFCFD2A33FC60A32E" box="[780,914,352,378]" captionStart="FIGURE 5" captionStartId="9.[151,254,1849,1873]" captionTargetBox="[157,1391,214,1806]" captionTargetId="figure-41@9.[143,1443,197,1823]" captionTargetPageId="9" captionText="FIGURE 5. Pseudotanais nipponicus, n.sp. A, left mandible; B, right mandible; C, maxilliped; D, maxillule endite, inset shows spiniform seta with setule. Scale = 0.2mm." pageId="8" pageNumber="95">Figs. 5A,B</figureCitation>
) with distal margins denticulate (left) and crenulate (right), right lacinia mobilis represented by short, pointed process, left lacinia mobilis well developed and denticulate, pars molaris acuminate, with four to five small subdistal denticles. Labium not observed. Maxillule (
<figureCitation id="29F92A05FF992B0EFE602A8BFE18A3A6" box="[401,490,472,498]" captionStart="FIGURE 5" captionStartId="9.[151,254,1849,1873]" captionTargetBox="[157,1391,214,1806]" captionTargetId="figure-41@9.[143,1443,197,1823]" captionTargetPageId="9" captionText="FIGURE 5. Pseudotanais nipponicus, n.sp. A, left mandible; B, right mandible; C, maxilliped; D, maxillule endite, inset shows spiniform seta with setule. Scale = 0.2mm." pageId="8" pageNumber="95">Fig. 5E</figureCitation>
) endite terminating with nine spiniform setae, three of which have a subterminal setule, and two accessory setae. Maxilla not observed. Maxilliped (
<figureCitation id="29F92A05FF992B0EFC3D2953FBD8A04E" box="[972,1066,512,538]" captionStart="FIGURE 5" captionStartId="9.[151,254,1849,1873]" captionTargetBox="[157,1391,214,1806]" captionTargetId="figure-41@9.[143,1443,197,1823]" captionTargetPageId="9" captionText="FIGURE 5. Pseudotanais nipponicus, n.sp. A, left mandible; B, right mandible; C, maxilliped; D, maxillule endite, inset shows spiniform seta with setule. Scale = 0.2mm." pageId="8" pageNumber="95">Fig. 5C</figureCitation>
) bases completely fused, with small seta near each palp location and two longer medially located setae; endites fused between one third and two thirds their length, each with one short seta and two short cusps, with lateral margins smooth; palp with four articles; article 1 without setae; article 2 with one inner-edge simple seta, two inner-edge spiniform setae, and one outer-edge simple seta; article 3 with three inner-edge spiniform setae and one inner-edge simple seta; article 4 with one small outer-edge simple seta, four inner-edge spiniform setae, and one inner-edge simple seta. Epignath not observed.
</paragraph>
<paragraph id="B17D3680FF992B0EFF37284BFBF7A1AE" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="95">
<emphasis id="83B6EA92FF992B0EFF37284BFEC2A165" box="[198,304,792,817]" italics="true" pageId="8" pageNumber="95">Cheliped</emphasis>
(
<figureCitation id="29F92A05FF992B0EFEB5284BFE50A166" box="[324,418,792,818]" captionStart="FIGURE 4" captionStartId="7.[151,254,1928,1952]" captionTargetBox="[181,1426,359,1884]" captionTargetId="figure-105@7.[161,1441,313,1912]" captionTargetPageId="7" captionText="FIGURE 4. Pseudotanais nipponicus, n.sp. A, holotype female, dorsal; B, holotype female, lateral; C, cheliped, arrow shows location of comb setae on reverse side; D, antennule; E, antenna; F, pleopods; G, uropods. Scale: A, B = 0.5mm, C–G = 0.2mm" pageId="8" pageNumber="95">Fig. 4C</figureCitation>
) strongly built, chela not forcipate; sclerite well developed. Basis twice as long as broad, with distal superior seta. Merus triangular, with inferior seta. Carpus 1.9 times as long as broad, with two unequal medial inferior setae, one distal superior seta and one proximal superior seta. Propodus 3.7 times as long as broad, about 1.8 times as long as carpus, palm with five short setulate comb setae. Fixed finger with one inferior seta, three superior setae and one seta near articulation with dactylus. Dactylus 61.3 % of propodus length, width narrower than fixed finger, with proximal spiniform seta.
</paragraph>
<paragraph id="B17D3680FF992B0EFF372F5BFAA8A696" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="95">
<emphasis id="83B6EA92FF992B0EFF372F5BFEBDA675" box="[198,335,1032,1057]" italics="true" pageId="8" pageNumber="95">Pereopod 1</emphasis>
(
<figureCitation id="29F92A05FF992B0EFE912F5BFE4CA676" box="[352,446,1032,1058]" captionStart="FIGURE 6" captionStartId="10.[151,254,1725,1749]" captionTargetBox="[170,1430,223,1703]" captionTargetId="figure-125@10.[143,1443,194,1820]" captionTargetPageId="10" captionText="FIGURE 6. Pseudotanais nipponicus, n.sp. A–F, pereopods 1–6 respectively. Inset at B shows detail of modified carpal seta. Inset at D shows detail of setulate ischium seta. Scale = 0.2mm." pageId="8" pageNumber="95">Fig. 6A</figureCitation>
) coxa with seta. Basis 7.6 times as long as broad, with eight marginal setae (seven superior, one infero-proximal). Ischium with small seta. Merus 3.8 times as long as broad, distally with long superior seta. Carpus 2.5 times as long as broad, 1.4 times as long as merus, distally with one short superior seta and one long superior seta (about twice as long as that of merus). Propodus 7.6 times as long as broad, distally with short inferior seta. Dactylus without seta, length with unguis slightly longer than propodus.
</paragraph>
<paragraph id="B17D3680FF992B0EFF372F83FAECA78E" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="95">
<emphasis id="83B6EA92FF992B0EFF372F83FEBDA6BD" box="[198,335,1232,1257]" italics="true" pageId="8" pageNumber="95">Pereopod 2</emphasis>
(
<figureCitation id="29F92A05FF992B0EFE912F83FE4EA6BE" box="[352,444,1232,1258]" captionStart="FIGURE 6" captionStartId="10.[151,254,1725,1749]" captionTargetBox="[170,1430,223,1703]" captionTargetId="figure-125@10.[143,1443,194,1820]" captionTargetPageId="10" captionText="FIGURE 6. Pseudotanais nipponicus, n.sp. A–F, pereopods 1–6 respectively. Inset at B shows detail of modified carpal seta. Inset at D shows detail of setulate ischium seta. Scale = 0.2mm." pageId="8" pageNumber="95">Fig. 6B</figureCitation>
) coxa with seta. Basis 6.7 times as long as broad, with medial superior broom seta and eight marginal setae (six inferior, two superior). Ischium with short inferior seta. Merus 2.1 times as long as broad, distally with one short inferior simple seta and one short inferior spiniform seta. Carpus 3.2 times as long as broad, about 1.2 times as long as merus, distally with one short superior simple seta, one inferior blade-like seta of about 65 % length of propodus and one short spiniform seta with broad basal collar. Propodus 6.4 times as long as broad, with inferior and superior marginal spinules and one long distal inferior spiniform seta. Dactylus without setae, length with unguis slightly longer than half as long as propodus.
</paragraph>
<paragraph id="B17D3680FF992B0EFF372EBBFB26A42E" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="95">
<emphasis id="83B6EA92FF992B0EFF372EBBFEA3A455" box="[198,337,1512,1537]" italics="true" pageId="8" pageNumber="95">Pereopod 3</emphasis>
(
<figureCitation id="29F92A05FF992B0EFE952EBBFE33A456" box="[356,449,1512,1538]" captionStart="FIGURE 6" captionStartId="10.[151,254,1725,1749]" captionTargetBox="[170,1430,223,1703]" captionTargetId="figure-125@10.[143,1443,194,1820]" captionTargetPageId="10" captionText="FIGURE 6. Pseudotanais nipponicus, n.sp. A–F, pereopods 1–6 respectively. Inset at B shows detail of modified carpal seta. Inset at D shows detail of setulate ischium seta. Scale = 0.2mm." pageId="8" pageNumber="95">Fig. 6C</figureCitation>
) basis with five marginal setae (three inferior, one supero-proximal) and without broom seta. Ischium with short inferior spiniform seta. Carpus with inferior blade-like seta of about 80 % length of propodus and one short spiniform seta with broad basal collar (blade longer than that of pereopod 2). Propodus 5.6 times as long as broad. Dactylus bifid-tipped. Otherwise similar to pereopod 2.
</paragraph>
<paragraph id="B17D3680FF992B0EFF372DDBFA9CA5B6" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="95">
<emphasis id="83B6EA92FF992B0EFF372DDBFEBDA4F5" box="[198,335,1672,1697]" italics="true" pageId="8" pageNumber="95">Pereopod 4</emphasis>
(
<figureCitation id="29F92A05FF992B0EFE912DDBFE4FA4F6" box="[352,445,1672,1698]" captionStart="FIGURE 6" captionStartId="10.[151,254,1725,1749]" captionTargetBox="[170,1430,223,1703]" captionTargetId="figure-125@10.[143,1443,194,1820]" captionTargetPageId="10" captionText="FIGURE 6. Pseudotanais nipponicus, n.sp. A–F, pereopods 1–6 respectively. Inset at B shows detail of modified carpal seta. Inset at D shows detail of setulate ischium seta. Scale = 0.2mm." pageId="8" pageNumber="95">Fig. 6D</figureCitation>
) coxa with seta. Basis 4.3 times as long as broad, with one medial broom seta and five marginal inferior setae. Ischium with one short setulose spiniform seta and one short simple seta. Merus 2.5 times as long as broad, distally with one short inferior spiniform seta and one short inferior simple seta. Carpus 3.5 times as long as broad, 1.9 times as long as merus, distally with one short superior simple seta, two unequal posterior spiniform setae, one inferior blade-like spiniform seta of about 35 % length of propodus and superior marginal spinules. Propodus five times as long as broad, slightly shorter than carpus, distally with one long supero-terminal spiniform seta with heavily setose distal half, one stout inferior spiniform seta, one short inferior simple seta, one superior broom seta and superior and inferior marginal spinules. Dactylus fused with unguis to form claw, margins slightly setulose, length with unguis less than half as long as propodus.
</paragraph>
<caption id="E5BD6608FF982B0FFF662C6AFD5BA527" pageId="9" pageNumber="96" startId="9.[151,254,1849,1873]" targetBox="[157,1391,214,1806]" targetPageId="9">
<paragraph id="B17D3680FF982B0FFF662C6AFD5BA527" blockId="9.[151,1436,1849,1907]" pageId="9" pageNumber="96">
<emphasis id="83B6EA92FF982B0FFF662C6AFEE5A505" bold="true" box="[151,279,1849,1873]" pageId="9" pageNumber="96">FIGURE 5.</emphasis>
<taxonomicName id="76C24D03FF982B0FFEEF2C69FDDBA505" authority="Mclelland, 2007" authorityName="Mclelland" authorityYear="2007" box="[286,553,1850,1873]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="9" pageNumber="96" phylum="Arthropoda" rank="species" species="nipponicus" status="sp. nov.">
<emphasis id="83B6EA92FF982B0FFEEF2C69FDDBA505" box="[286,553,1850,1873]" italics="true" pageId="9" pageNumber="96">Pseudotanais nipponicus</emphasis>
</taxonomicName>
,
<taxonomicNameLabel id="988557E9FF982B0FFDC72C6AFD9BA504" box="[566,617,1849,1872]" pageId="9" pageNumber="96" rank="species">n.sp.</taxonomicNameLabel>
A, left mandible; B, right mandible; C, maxilliped; D, maxillule endite, inset shows spiniform seta with setule. Scale = 0.2mm.
</paragraph>
</caption>
<caption id="E5BD6608FF9B2B0CFF662DEEFC84A4AC" pageId="10" pageNumber="97" startId="10.[151,254,1725,1749]" targetBox="[170,1430,223,1703]" targetPageId="10">
<paragraph id="B17D3680FF9B2B0CFF662DEEFC84A4AC" blockId="10.[151,1436,1725,1784]" pageId="10" pageNumber="97">
<emphasis id="83B6EA92FF9B2B0CFF662DEEFEEAA481" bold="true" box="[151,280,1725,1749]" pageId="10" pageNumber="97">FIGURE 6.</emphasis>
<taxonomicName id="76C24D03FF9B2B0CFED12DEDFDD9A481" authority="Mclelland, 2007" authorityName="Mclelland" authorityYear="2007" box="[288,555,1726,1749]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="10" pageNumber="97" phylum="Arthropoda" rank="species" species="nipponicus" status="sp. nov.">
<emphasis id="83B6EA92FF9B2B0CFED12DEDFDD9A481" box="[288,555,1726,1749]" italics="true" pageId="10" pageNumber="97">Pseudotanais nipponicus</emphasis>
</taxonomicName>
,
<taxonomicNameLabel id="988557E9FF9B2B0CFDC82DEDFD99A481" box="[569,619,1726,1749]" pageId="10" pageNumber="97" rank="species">n.sp.</taxonomicNameLabel>
A–F, pereopods 1–6 respectively. Inset at B shows detail of modified carpal seta. Inset at D shows detail of setulate ischium seta. Scale = 0.2mm.
</paragraph>
</caption>
<paragraph id="B17D3680FF9B2B0CFF372C7FFC16A5C1" blockId="10.[151,1436,1835,2021]" pageId="10" pageNumber="97">
<emphasis id="83B6EA92FF9B2B0CFF372C7FFEBFA511" box="[198,333,1836,1861]" italics="true" pageId="10" pageNumber="97">Pereopod 5</emphasis>
(
<figureCitation id="29F92A05FF9B2B0CFEAD2C78FE46A511" box="[348,436,1835,1861]" captionStart="FIGURE 6" captionStartId="10.[151,254,1725,1749]" captionTargetBox="[170,1430,223,1703]" captionTargetId="figure-125@10.[143,1443,194,1820]" captionTargetPageId="10" captionText="FIGURE 6. Pseudotanais nipponicus, n.sp. A–F, pereopods 1–6 respectively. Inset at B shows detail of modified carpal seta. Inset at D shows detail of setulate ischium seta. Scale = 0.2mm." pageId="10" pageNumber="97">Fig. 6E</figureCitation>
) basis with three marginal inferior setae. Ischium with two unequal simple setae. Carpus distally with superior seta extending beyond propodus, stout serrate spiniform seta, and inferior blade-like seta of about 40 % of propodus length. Otherwise similar to pereopod 4.
</paragraph>
<paragraph id="B17D3680FF9B2B0DFF372CF7FB25A28E" blockId="10.[151,1436,1835,2021]" lastBlockId="11.[151,1436,152,1138]" lastPageId="11" lastPageNumber="98" pageId="10" pageNumber="97">
<emphasis id="83B6EA92FF9B2B0CFF372CF7FEBCA5E9" box="[198,334,1956,1981]" italics="true" pageId="10" pageNumber="97">Pereopod 6</emphasis>
(
<figureCitation id="29F92A05FF9B2B0CFEAF2CF0FE47A5E9" box="[350,437,1955,1981]" captionStart="FIGURE 6" captionStartId="10.[151,254,1725,1749]" captionTargetBox="[170,1430,223,1703]" captionTargetId="figure-125@10.[143,1443,194,1820]" captionTargetPageId="10" captionText="FIGURE 6. Pseudotanais nipponicus, n.sp. A–F, pereopods 1–6 respectively. Inset at B shows detail of modified carpal seta. Inset at D shows detail of setulate ischium seta. Scale = 0.2mm." pageId="10" pageNumber="97">Fig. 6F</figureCitation>
) basis with proximal simple seta and superior broom seta. Ischium with two unequal simple setae. Merus lacking distal simple seta. Carpus distally with superior seta subequal to length of propo- dus, inferior blade-like seta of about 45 % of propodus length, and stout serrate spiniform seta. Propodus with additional terminal spiniform seta and lacking broom setae. Otherwise similar to pereopod 4.
</paragraph>
<paragraph id="B17D3680FF9A2B0DFF372BBBFBBBA37E" blockId="11.[151,1436,152,1138]" pageId="11" pageNumber="98">
<emphasis id="83B6EA92FF9A2B0DFF372BBBFEC1A355" box="[198,307,232,257]" italics="true" pageId="11" pageNumber="98">Pleopods</emphasis>
(
<figureCitation id="29F92A05FF9A2B0DFEB42BBBFE6FA356" box="[325,413,232,258]" captionStart="FIGURE 4" captionStartId="7.[151,254,1928,1952]" captionTargetBox="[181,1426,359,1884]" captionTargetId="figure-105@7.[161,1441,313,1912]" captionTargetPageId="7" captionText="FIGURE 4. Pseudotanais nipponicus, n.sp. A, holotype female, dorsal; B, holotype female, lateral; C, cheliped, arrow shows location of comb setae on reverse side; D, antennule; E, antenna; F, pleopods; G, uropods. Scale: A, B = 0.5mm, C–G = 0.2mm" pageId="11" pageNumber="98">Fig. 4F</figureCitation>
) rami elongate, with terminal setae only. Endopod about four fifth as long as exopod, with five terminal setae (innermost very short). Exopod with nine terminal setae.
</paragraph>
<paragraph id="B17D3680FF9A2B0DFF372A6BFC3CA39E" blockId="11.[151,1436,152,1138]" pageId="11" pageNumber="98">
<emphasis id="83B6EA92FF9A2B0DFF372A6BFEDEA305" box="[198,300,312,337]" italics="true" pageId="11" pageNumber="98">Uropods</emphasis>
(
<figureCitation id="29F92A05FF9A2B0DFECD2A6BFE6BA306" box="[316,409,312,338]" captionStart="FIGURE 4" captionStartId="7.[151,254,1928,1952]" captionTargetBox="[181,1426,359,1884]" captionTargetId="figure-105@7.[161,1441,313,1912]" captionTargetPageId="7" captionText="FIGURE 4. Pseudotanais nipponicus, n.sp. A, holotype female, dorsal; B, holotype female, lateral; C, cheliped, arrow shows location of comb setae on reverse side; D, antennule; E, antenna; F, pleopods; G, uropods. Scale: A, B = 0.5mm, C–G = 0.2mm" pageId="11" pageNumber="98">Fig. 4G</figureCitation>
) exopod with two articles, slightly shorter than endopod, proximal article about half as long as ramus, with one distal simple seta, distal article with two unequal simple setae. Endopod with two articles, proximal article about half as long as ramus, with one long distal simple seta and two broom setae, distal article with four long and one short simple setae and two broom setae.
</paragraph>
</subSubSection>
<subSubSection id="F9D8650BFF9A2B0DFF372A84FB6EA626" pageId="11" pageNumber="98" type="discussion">
<paragraph id="B17D3680FF9A2B0DFF372A84FB6EA626" blockId="11.[151,1436,152,1138]" pageId="11" pageNumber="98">
<emphasis id="83B6EA92FF9A2B0DFF372A84FECAA3A5" bold="true" box="[198,312,471,497]" pageId="11" pageNumber="98">Remarks</emphasis>
. Because of its acuminate pars molaris bearing subterminal denticles, this new species appears to belong to a subset of the “affinis group”, as defined by
<bibRefCitation id="D5534B71FF9A2B0DFCB02953FBA1A04E" author="Bird, G. J. &amp; Holdich D. M." box="[833,1107,512,538]" pageId="11" pageNumber="98" pagination="233 - 298" refId="ref5465" refString="Bird, G. J. &amp; Holdich D. M. (1989) Tanaidacea (Crustacea) of the north-east Atlantic: the subfamily Pseudotanainae (Pseudotanaidae) and the family Nototanaidae. Zoological Journal of the Linnean Society, London, 97, 233 - 298." type="journal article" year="1989">Bird &amp; Holdich (1989)</bibRefCitation>
, that also includes
<taxonomicName id="76C24D03FF9A2B0DFAC52953FE07A016" authority="Sieg, 1977" authorityName="Sieg" authorityYear="1977" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="longisetosus">
<emphasis id="83B6EA92FF9A2B0DFAC52953FE9FA015" italics="true" pageId="11" pageNumber="98">Pseudotanais longisetosus</emphasis>
<bibRefCitation id="D5534B71FF9A2B0DFE85297BFE07A016" author="Sieg, J." box="[372,501,552,578]" pageId="11" pageNumber="98" pagination="1 - 109" refId="ref5830" refString="Sieg, J. (1977) Taxonomische Monographie der familie Pseudotanaidae (Crustacea, Tanaidacea). Mitteilungen aus dem Zoologischen Museum in Berlin, 53, 1 - 109." type="journal article" year="1977">Sieg, 1977</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="76C24D03FF9A2B0DFDF1297BFC5FA016" authority="Bird &amp; Holdich, 1989" authorityName="Bird &amp; Holdich" authorityYear="1989" box="[512,941,552,578]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="longispinus">
<emphasis id="83B6EA92FF9A2B0DFDF1297BFD51A015" box="[512,675,552,577]" italics="true" pageId="11" pageNumber="98">P. longispinus</emphasis>
<bibRefCitation id="D5534B71FF9A2B0DFD5B297BFC5FA016" author="Bird, G. J. &amp; Holdich D. M." box="[682,941,552,578]" pageId="11" pageNumber="98" pagination="233 - 298" refId="ref5465" refString="Bird, G. J. &amp; Holdich D. M. (1989) Tanaidacea (Crustacea) of the north-east Atlantic: the subfamily Pseudotanainae (Pseudotanaidae) and the family Nototanaidae. Zoological Journal of the Linnean Society, London, 97, 233 - 298." type="journal article" year="1989">Bird &amp; Holdich, 1989</bibRefCitation>
</taxonomicName>
; and
<taxonomicName id="76C24D03FF9A2B0DFC18297BFADEA016" authority="Sieg, 1977" authorityName="Sieg" authorityYear="1977" box="[1001,1324,552,578]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="nordenskioldi">
<emphasis id="83B6EA92FF9A2B0DFC18297BFB57A015" box="[1001,1189,552,577]" italics="true" pageId="11" pageNumber="98">P. nordenskioldi</emphasis>
<bibRefCitation id="D5534B71FF9A2B0DFB5D297BFADEA016" author="Sieg, J." box="[1196,1324,552,578]" pageId="11" pageNumber="98" pagination="1 - 109" refId="ref5830" refString="Sieg, J. (1977) Taxonomische Monographie der familie Pseudotanaidae (Crustacea, Tanaidacea). Mitteilungen aus dem Zoologischen Museum in Berlin, 53, 1 - 109." type="journal article" year="1977">Sieg, 1977</bibRefCitation>
</taxonomicName>
. The new species appears nearly identical to
<taxonomicName id="76C24D03FF9A2B0DFDB42903FD1FA03D" authorityName="Bird &amp; Holdich" authorityYear="1989" box="[581,749,592,617]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="longispinus">
<emphasis id="83B6EA92FF9A2B0DFDB42903FD1FA03D" box="[581,749,592,617]" italics="true" pageId="11" pageNumber="98">P. longispinus</emphasis>
</taxonomicName>
except for minor differences in the setation of the pars molaris, the presence of dorsal and lateral setae on the thoracic and abdominal segments, and unequal merus and carpal superior setae on pereopod 1 (equal lengths in
<taxonomicName id="76C24D03FF9A2B0DFCA029F3FC05A0ED" authorityName="Bird &amp; Holdich" authorityYear="1989" box="[849,1015,672,697]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="longispinus">
<emphasis id="83B6EA92FF9A2B0DFCA029F3FC05A0ED" box="[849,1015,672,697]" italics="true" pageId="11" pageNumber="98">P. longispinus</emphasis>
</taxonomicName>
). Furthermore,
<taxonomicName id="76C24D03FF9A2B0DFB4429F3FAA6A0ED" authorityName="Mclelland" authorityYear="2007" box="[1205,1364,672,697]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="nipponicus">
<emphasis id="83B6EA92FF9A2B0DFB4429F3FAA6A0ED" box="[1205,1364,672,697]" italics="true" pageId="11" pageNumber="98">P. nipponicus</emphasis>
</taxonomicName>
has a cephalothorax which is considerably shorter in proportion to the length of pereonites 1–3 (cephalothorax is subequal to pereonites
<quantity id="763A9B65FF9A2B0DFE5529A3FE1CA15E" box="[420,494,752,778]" metricMagnitude="-2" metricUnit="m" metricValue="5.08" metricValueMax="7.62" metricValueMin="2.54" pageId="11" pageNumber="98" unit="in" value="2.0" valueMax="3.0" valueMin="1.0">1–3 in</quantity>
<taxonomicName id="76C24D03FF9A2B0DFE0429A3FD6BA15D" authorityName="Bird &amp; Holdich" authorityYear="1989" box="[501,665,752,777]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="longispinus">
<emphasis id="83B6EA92FF9A2B0DFE0429A3FD6BA15D" box="[501,665,752,777]" italics="true" pageId="11" pageNumber="98">P. longispinus</emphasis>
</taxonomicName>
) and has a peculiar spiniform seta with a short, round basal collar on the carpus of pereopods 2–3. Both species feature a pars molaris with subterminal teeth except that the new species apparently has less setation with only four to five small subterminal teeth whereas
<taxonomicName id="76C24D03FF9A2B0DFB392813FA9EA10D" authorityName="Bird &amp; Holdich" authorityYear="1989" box="[1224,1388,832,857]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="longispinus">
<emphasis id="83B6EA92FF9A2B0DFB392813FA9EA10D" box="[1224,1388,832,857]" italics="true" pageId="11" pageNumber="98">P. longispinus</emphasis>
</taxonomicName>
has “one long and about eight short terminal denticles” the longest of which is four times the length of the others and has secondary spinules. Additionally, the distal half of the long terminal setae on the propodus of pereopods 4–6 are heavily setulose in
<taxonomicName id="76C24D03FF9A2B0DFDD528EBFD36A185" authorityName="Mclelland" authorityYear="2007" box="[548,708,952,977]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="nipponicus">
<emphasis id="83B6EA92FF9A2B0DFDD528EBFD36A185" box="[548,708,952,977]" italics="true" pageId="11" pageNumber="98">P. nipponicus</emphasis>
</taxonomicName>
and a few of the spiniform setae of the maxillule endite are equipped with a subterminal setule; both features were not mentioned by
<bibRefCitation id="D5534B71FF9A2B0DFC0C28B3FAFFA1AE" author="Bird, G. J. &amp; Holdich D. M." box="[1021,1293,992,1018]" pageId="11" pageNumber="98" pagination="233 - 298" refId="ref5465" refString="Bird, G. J. &amp; Holdich D. M. (1989) Tanaidacea (Crustacea) of the north-east Atlantic: the subfamily Pseudotanainae (Pseudotanaidae) and the family Nototanaidae. Zoological Journal of the Linnean Society, London, 97, 233 - 298." type="journal article" year="1989">Bird &amp; Holdich (1989)</bibRefCitation>
for
<taxonomicName id="76C24D03FF9A2B0DFAB128B3FF18A675" authorityName="Bird &amp; Holdich" authorityYear="1989" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="longispinus">
<emphasis id="83B6EA92FF9A2B0DFAB128B3FF18A675" italics="true" pageId="11" pageNumber="98">P. longispinus</emphasis>
</taxonomicName>
. The setation of the pereopods is nearly identical in both species, differing from
<taxonomicName id="76C24D03FF9A2B0DFB462F5BFA87A675" authorityName="Sieg" authorityYear="1977" box="[1207,1397,1032,1057]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="nordenskioldi">
<emphasis id="83B6EA92FF9A2B0DFB462F5BFA87A675" box="[1207,1397,1032,1057]" italics="true" pageId="11" pageNumber="98">P. nordenskioldi</emphasis>
</taxonomicName>
by having a long superior seta on the carpus of pereopods 4–5. The two species appear to have identical maxillipeds which differ from that of
<taxonomicName id="76C24D03FF9A2B0DFE0F2F0BFD5EA625" authorityName="Sieg" authorityYear="1977" box="[510,684,1112,1137]" class="Malacostraca" family="Pseudotanaidae" genus="Pseudotanais" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="98" phylum="Arthropoda" rank="species" species="longisetosus">
<emphasis id="83B6EA92FF9A2B0DFE0F2F0BFD5EA625" box="[510,684,1112,1137]" italics="true" pageId="11" pageNumber="98">P. longisetosus</emphasis>
</taxonomicName>
by having two small cusps on the endites.
</paragraph>
</subSubSection>
</treatment>
</document>
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