292 lines
31 KiB
XML
292 lines
31 KiB
XML
<document id="B2C9112B6D1996A5B38F58D8A538D229" ID-DOI="10.11646/zootaxa.3664.2.5" ID-GBIF-Dataset="998f53b0-f46c-4525-bc3a-f8a597c01979" ID-ISSN="1175-5326" ID-Zenodo-Dep="220335" ID-ZooBank="5306204C-0DBC-4EE1-A008-B1582FA80243" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460616100831" checkinUser="plazi" docAuthor="Meland, Kenneth & Aas, Pål Øyvind" docDate="2013" docId="03B587CDFFACFFAC1FDFFD293E24F863" docLanguage="en" docName="zt03664p225.pdf" docOrigin="Zootaxa 3664 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Gnathophausia affinis G.O. Sars 1883" docType="treatment" docVersion="12" lastPageNumber="207" masterDocId="FF8CFFB5FFABFFA41F48FFDD3B64FF80" masterDocTitle="A taxonomical review of the Gnathophausia (Crustacea, Lophogastrida), with new records from the northern mid-Atlantic ridge" masterLastPageNumber="225" masterPageNumber="199" pageNumber="206" updateTime="1698330483512" updateUser="plazi">
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<mods:titleInfo id="2C82DA28995CCEECB2209DA75522589E">
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<mods:title id="4F49E31F37194F8BBE525BB172DE8305">A taxonomical review of the Gnathophausia (Crustacea, Lophogastrida), with new records from the northern mid-Atlantic ridge</mods:title>
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<mods:namePart id="50B4285B69786F5630C01577B3C87F4E">Meland, Kenneth</mods:namePart>
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<mods:namePart id="6A501D6C8D6CAA9E62D8B0D20EC2D2CA">Aas, Pål Øyvind</mods:namePart>
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<mods:typeOfResource id="9928B9B483D6A67D61B482C87141D87B">text</mods:typeOfResource>
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<mods:title id="2199E189DA1C2DCD656F4A14C05D5039">Zootaxa</mods:title>
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<mods:part id="8DAC762E6984C43BE69899B5B52FC172">
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<mods:date id="D0E10DFA9F7B47124FE16284CAA3C0B8">2013</mods:date>
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<mods:detail id="B7C2EECC6AFE3CB666E3250C29E06D4B" type="volume">
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<mods:number id="50280DD49EFBE476BAA28B41D9814F82">3664</mods:number>
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<mods:identifier id="273D801F2F791C1CF48BA283CAD103F6" type="DOI">10.11646/zootaxa.3664.2.5</mods:identifier>
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<treatment id="03B587CDFFACFFAC1FDFFD293E24F863" ID-DOI="http://doi.org/10.5281/zenodo.6162686" ID-GBIF-Taxon="119568725" ID-Zenodo-Dep="6162686" LSID="urn:lsid:plazi:treatment:03B587CDFFACFFAC1FDFFD293E24F863" httpUri="http://treatment.plazi.org/id/03B587CDFFACFFAC1FDFFD293E24F863" lastPageId="8" lastPageNumber="207" pageId="7" pageNumber="206">
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<subSubSection id="C3066550FFACFFA31FDFFD293873FC0E" pageId="7" pageNumber="206" type="nomenclature">
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<paragraph id="8BA336DBFFACFFA31FDFFD29390BFC8D" blockId="7.[151,623,755,814]" box="[151,623,755,782]" pageId="7" pageNumber="206">
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<heading id="D0EB81B7FFACFFA31FDFFD29390BFC8D" bold="true" box="[151,623,755,782]" fontSize="11" level="1" pageId="7" pageNumber="206" reason="1">
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<taxonomicName id="4C1C4D58FFACFFA31FDFFD29390BFC8D" authority="G.O. Sars, 1883" authorityName="G.O. Sars" authorityYear="1883" box="[151,623,755,782]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="affinis">
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<emphasis id="B968EAC9FFACFFA31FDFFD29390BFC8D" bold="true" box="[151,623,755,782]" pageId="7" pageNumber="206">
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<emphasis id="B968EAC9FFACFFA31FDFFD293AC3FC8E" bold="true" box="[151,423,756,782]" italics="true" pageId="7" pageNumber="206">Gnathophausia affinis</emphasis>
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G.O. Sars, 1883
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="8BA336DBFFACFFA31FDFFCCB3B8FFCAE" blockId="7.[151,623,755,814]" box="[151,235,790,814]" pageId="7" pageNumber="206">
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(
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<figureCitation id="13272A5EFFACFFA31FD7FCCB3B87FCAE" box="[159,227,790,814]" captionStart="FIGURE 4" captionStartId="8.[151,250,972,995]" captionTargetBox="[206,1435,196,942]" captionTargetId="figure@8.[151,1436,195,951]" captionTargetPageId="8" captionText="FIGURE 4. Gnathophausia affinis G. O. Sars 1883. Adult female: A, lateral view; B, dorsal view; C, antenna (ventral view); D, telson and right uropod (dorsal view) (from G. O. Sars 1885: pl. V, figs 7 – 10)." httpUri="https://zenodo.org/record/220339/files/figure.png" pageId="7" pageNumber="206">Fig. 4</figureCitation>
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)
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</paragraph>
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<paragraph id="8BA336DBFFACFFA31FDFFC843873FC0E" blockId="7.[151,1279,857,910]" pageId="7" pageNumber="206">
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<taxonomicName id="4C1C4D58FFACFFA31FDFFC84395CFCEF" authority="G.O. Sars, 1883: 7" authorityName="G.O. Sars" authorityPageNumber="7" authorityYear="1883" box="[151,568,857,879]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="affinis">
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<emphasis id="B968EAC9FFACFFA31FDFFC843A1CFCEF" box="[151,376,857,879]" italics="true" pageId="7" pageNumber="206">Gnathophausia affinis</emphasis>
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G.O. Sars, 1883: 7
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</taxonomicName>
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.—G.O. Sars 1885: 41–42.—Hansen 1927: 19.—Nouvel 1943: 19–20.
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<taxonomicName id="4C1C4D58FFACFFA31FDFFCA53A03FC0E" box="[151,359,888,910]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="zoea">
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<emphasis id="B968EAC9FFACFFA31FDFFCA53A03FC0E" box="[151,359,888,910]" italics="true" pageId="7" pageNumber="206">Gnathophausia zoea</emphasis>
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</taxonomicName>
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—Willemoes-Suhm 1875: 32–33 (in part).
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</paragraph>
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</subSubSection>
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<subSubSection id="C3066550FFACFFA31FDFFC683E69FB69" pageId="7" pageNumber="206" type="materials_examined">
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<paragraph id="8BA336DBFFACFFA31FDFFC6839FFFB45" blockId="7.[151,1437,949,2037]" pageId="7" pageNumber="206">
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<emphasis id="B968EAC9FFACFFA31FDFFC68380DFC4E" bold="true" box="[151,873,949,974]" pageId="7" pageNumber="206">
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Material examined.
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<emphasis id="B968EAC9FFACFFA31EC1FC6B380DFC4E" bold="true" box="[393,873,949,974]" italics="true" pageId="7" pageNumber="206">In formaldehyde (transferred to ethanol).</emphasis>
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</emphasis>
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Stn 24-352-1095,
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<specimenCount id="9D1AFD52FFACFFA31B75FC683F2FFC4D" box="[1085,1099,949,973]" pageId="7" pageNumber="206" type="generic">1</specimenCount>
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specimen (3 6.0cm) (ZMBN 81177); Stn 30-358-1117,
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<specimenCount id="9D1AFD52FFACFFA31E8CFC053AB6FC70" box="[452,466,984,1008]" pageId="7" pageNumber="206" type="generic">2</specimenCount>
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specimens (ZMBN 86544); Stn 30-358-1118,
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<specimenCount id="9D1AFD52FFACFFA31CA5FC05389FFC70" box="[1005,1019,984,1008]" pageId="7" pageNumber="206" type="generic">2</specimenCount>
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specimens (ZMBN 86618); Stn 30- 358-1119,
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<specimenCount id="9D1AFD52FFACFFA31E5BFC213A45FB94" box="[275,289,1020,1044]" pageId="7" pageNumber="206" type="generic">1</specimenCount>
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specimen (ZMBN 86543); Stn 30-359-1122,
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<specimenCount id="9D1AFD52FFACFFA31C74FC20382EFB94" box="[828,842,1021,1044]" pageId="7" pageNumber="206" type="generic">7</specimenCount>
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specimens (immature 4.5 cm, immature 5.5cm, Ƥ 5.0cm, Ƥ 6.5cm, Ƥ 7.0cm, 3 7.0cm, 1 damaged) (ZMBN 81178); Stn 32-361-1126,
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<specimenCount id="9D1AFD52FFACFFA31B0DFBC23F37FBB7" box="[1093,1107,1055,1079]" pageId="7" pageNumber="206" type="generic">3</specimenCount>
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specimens (immature 5.0cm, Ƥ 6.0cm, Ƥ 6.5cm) (ZMBN 81180); Stn 32-362-1128,
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<specimenCount id="9D1AFD52FFACFFA31DB4FB9E386EFBDB" box="[764,778,1091,1115]" pageId="7" pageNumber="206" type="generic">4</specimenCount>
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specimens (ZMBN 86547); Stn 32-362-1129,
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<specimenCount id="9D1AFD52FFACFFA31A5AFB9E3E44FBDB" box="[1298,1312,1091,1115]" pageId="7" pageNumber="206" type="generic">5</specimenCount>
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specimens (ZMBN 86546); Stn 32-362-1130,
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<specimenCount id="9D1AFD52FFACFFA31D55FBBB394FFBFE" box="[541,555,1126,1150]" pageId="7" pageNumber="206" type="generic">3</specimenCount>
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specimens (ZMBN 86545); Stn 32-362-1131,
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<specimenCount id="9D1AFD52FFACFFA31B7CFBBB3F26FBFE" box="[1076,1090,1126,1150]" pageId="7" pageNumber="206" type="generic">1</specimenCount>
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specimen (ZMBN 86619); Stn 36-365-1142,
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<specimenCount id="9D1AFD52FFACFFA31E7EFB573A20FB22" box="[310,324,1162,1186]" pageId="7" pageNumber="206" type="generic">1</specimenCount>
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specimen (ZMBN 86548); Stn 42-368-1150,
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<specimenCount id="9D1AFD52FFACFFA31C06FB573838FB22" box="[846,860,1162,1186]" pageId="7" pageNumber="206" type="generic">1</specimenCount>
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specimen (Ƥ 7.0cm) (ZMBN 81181); Stn 44-369- 1151,
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<specimenCount id="9D1AFD52FFACFFA31F94FB703B8EFB45" box="[220,234,1197,1221]" pageId="7" pageNumber="206" type="generic">1</specimenCount>
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specimen (Ƥ 7.0 cm) (ZMBN 81182).
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</paragraph>
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<paragraph id="8BA336DBFFACFFA31F8FFB0F3E69FB69" blockId="7.[151,1437,949,2037]" box="[199,1293,1233,1258]" pageId="7" pageNumber="206">
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<emphasis id="B968EAC9FFACFFA31F8FFB0F3A5BFB6A" bold="true" box="[199,319,1233,1258]" italics="true" pageId="7" pageNumber="206">In ethanol</emphasis>
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. Stn 30-359-1123,
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<specimenCount id="9D1AFD52FFACFFA31D5FFB0C3941FB69" box="[535,549,1233,1257]" pageId="7" pageNumber="206" type="generic">2</specimenCount>
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specimens (Ƥ 6.5cm, 1 damaged) (ZMBN 81179, ZMBN 86620).
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</paragraph>
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</subSubSection>
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<subSubSection id="C3066550FFACFFA31F8FFB29392FF9CB" pageId="7" pageNumber="206" type="diagnosis">
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<paragraph id="8BA336DBFFACFFA31F8FFB29392FF9CB" blockId="7.[151,1437,949,2037]" pageId="7" pageNumber="206">
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<emphasis id="B968EAC9FFACFFA31F8FFB293A25FA8D" bold="true" box="[199,321,1268,1293]" pageId="7" pageNumber="206">Diagnosis.</emphasis>
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Body slender. Integument bright red. Carapace does not extend beyond last thorax somite; rostrum shorter than carapace, dorsal edge with marked denticles extending posteriorly to base; dorsal keel interrupted in region of cervical groove, forms raised keel proximal to rostrum and extends posteriorly to posterodorsal end. Posterolateral spine short, barely extending past first abdominal somite. Upper lateral keels distinct, anterior portion curves down towards antroventral corner, connecting to ventral keels. Lower lateral keels distinct, stopping abruptly before reaching posterior margin of carapace. Supra-orbital spines small, barely extending beyond eyes; antennal spines barely visible; branchiostegal lobes somewhat angular. Antennal scale about twice as long as broad, outer margin entire terminating in a strong spine, terminal lobe extending past outer spine. Abdominal somites bearing no dorsal keels nor spines, ventrolateral margins rounded. Telson linguiform, extending past the uropods. Obtains lengths up to
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<quantity id="4CE49B3EFFACFFA31EBDF9EE3923F9CB" box="[501,583,1587,1611]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" pageId="7" pageNumber="206" unit="mm" value="80.0">80 mm</quantity>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3066550FFACFFA31F8FF98B3FDEF97D" pageId="7" pageNumber="206" type="distribution">
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<paragraph id="8BA336DBFFACFFA31F8FF98B3FDEF97D" blockId="7.[151,1437,949,2037]" pageId="7" pageNumber="206">
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<emphasis id="B968EAC9FFACFFA31F8FF98B3A04F9EF" bold="true" box="[199,352,1622,1647]" pageId="7" pageNumber="206">Distribution.</emphasis>
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<taxonomicName id="4C1C4D58FFACFFA31E20F98A3906F9EF" box="[360,610,1623,1647]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="affinis">
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<emphasis id="B968EAC9FFACFFA31E20F98A3906F9EF" box="[360,610,1623,1647]" italics="true" pageId="7" pageNumber="206">Gnathophausia affinis</emphasis>
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</taxonomicName>
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was first described by G.O. Sars (1883, 1885) on a misidentified
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<emphasis id="B968EAC9FFACFFA31A01F9853EFCF9EF" box="[1353,1432,1624,1647]" italics="true" pageId="7" pageNumber="206">G. z o e a</emphasis>
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from "Challenger" station 107, between Africa and
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<collectingCountry id="F30B764BFFACFFA31D9FF9A73878F912" box="[727,796,1658,1682]" name="Brazil" pageId="7" pageNumber="206">Brazil</collectingCountry>
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at a depth of
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<quantity id="4CE49B3EFFACFFA31CFCF9A73F6DF912" box="[948,1033,1658,1682]" metricMagnitude="3" metricUnit="m" metricValue="2.7439999999999998" pageId="7" pageNumber="206" unit="m" value="2744.0">2744 m</quantity>
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(see Willemoes-Suhm 1875: p. 32). Additional specimens have later been retrieved off
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<collectingCountry id="F30B764BFFACFFA31DB9F9423832F936" box="[753,854,1695,1718]" name="Morocco" pageId="7" pageNumber="206">Morocco</collectingCountry>
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at a depth of
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<quantity id="4CE49B3EFFACFFA31B4DF9433F3AF936" box="[1029,1118,1694,1718]" metricMagnitude="3" metricUnit="m" metricValue="2.6" pageId="7" pageNumber="206" unit="m" value="2600.0">2600 m</quantity>
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(Hansen 1927), and in the northern region of the Azores Islands at a depth of
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<quantity id="4CE49B3EFFACFFA31D84F91C3845F959" box="[716,801,1729,1753]" metricMagnitude="3" metricUnit="m" metricValue="2.102" pageId="7" pageNumber="206" unit="m" value="2102.0">2102 m</quantity>
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(Nouvel 1943). With the Mar-Eco material 20 additional specimens of
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<taxonomicName id="4C1C4D58FFACFFA31E79F93B3AF1F97D" box="[305,405,1765,1789]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="affinis">
|
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<emphasis id="B968EAC9FFACFFA31E79F93B3AF1F97D" box="[305,405,1765,1789]" italics="true" pageId="7" pageNumber="206">G. affinis</emphasis>
|
||
</taxonomicName>
|
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are now recorded north of the Azore Islands at depths down to
|
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<quantity id="4CE49B3EFFACFFA31B16F9383FD2F97D" box="[1118,1206,1765,1789]" metricMagnitude="3" metricUnit="m" metricValue="2.383" pageId="7" pageNumber="206" unit="m" value="2383.0">2383 m</quantity>
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||
.
|
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</paragraph>
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</subSubSection>
|
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<subSubSection id="C3066550FFACFFAC1F8FF8D43B8FFB08" lastPageId="8" lastPageNumber="207" pageId="7" pageNumber="206" type="discussion">
|
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<paragraph id="8BA336DBFFACFFA31F8FF8D43F54F875" blockId="7.[151,1437,949,2037]" pageId="7" pageNumber="206">
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<emphasis id="B968EAC9FFACFFA31F8FF8D43A5FF8A1" bold="true" box="[199,315,1801,1825]" pageId="7" pageNumber="206">Remarks.</emphasis>
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||
<taxonomicName id="4C1C4D58FFACFFA31E0AF8D43AC3F8A0" box="[322,423,1800,1824]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="affinis">
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<emphasis id="B968EAC9FFACFFA31E0AF8D43AC3F8A0" box="[322,423,1800,1824]" italics="true" pageId="7" pageNumber="206">G. affinis</emphasis>
|
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</taxonomicName>
|
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is morphologically most similar to the Pacific species,
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<taxonomicName id="4C1C4D58FFACFFA31B5EF8D43E3AF8A0" authority="Casanova, 1996" authorityName="Casanova" authorityYear="1996" box="[1046,1374,1800,1824]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="childressi">
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<emphasis id="B968EAC9FFACFFA31B5EF8D43FC5F8A0" box="[1046,1185,1800,1824]" italics="true" pageId="7" pageNumber="206">G. childressi</emphasis>
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Casanova, 1996
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</taxonomicName>
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b, but is distinguished from
|
||
<taxonomicName id="4C1C4D58FFACFFA31EC6F8F0397DF8C4" box="[398,537,1836,1860]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="childressi">
|
||
<emphasis id="B968EAC9FFACFFA31EC6F8F0397DF8C4" box="[398,537,1836,1860]" italics="true" pageId="7" pageNumber="206">G. childressi</emphasis>
|
||
</taxonomicName>
|
||
by the presence of upper lateral keels. Also in
|
||
<taxonomicName id="4C1C4D58FFACFFA31B7CF8F03FFEF8C4" box="[1076,1178,1836,1860]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="affinis">
|
||
<emphasis id="B968EAC9FFACFFA31B7CF8F03FFEF8C4" box="[1076,1178,1836,1860]" italics="true" pageId="7" pageNumber="206">G. affinis</emphasis>
|
||
</taxonomicName>
|
||
the pleura of the sixth abdominal somite is not rounded, but ends in a spine. Based on a presumed close relationship between
|
||
<taxonomicName id="4C1C4D58FFACFFA31A5AF88D3EF8F8E7" box="[1298,1436,1871,1895]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="childressi">
|
||
<emphasis id="B968EAC9FFACFFA31A5AF88D3EF8F8E7" box="[1298,1436,1871,1895]" italics="true" pageId="7" pageNumber="206">G. childressi</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C1C4D58FFACFFA31F81F8A93A54F80B" box="[201,304,1907,1931]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="affinis">
|
||
<emphasis id="B968EAC9FFACFFA31F81F8A93A54F80B" box="[201,304,1907,1931]" italics="true" pageId="7" pageNumber="206">G. affinis</emphasis>
|
||
</taxonomicName>
|
||
, a similar vertical distribution to
|
||
<taxonomicName id="4C1C4D58FFACFFA31DFDF8A93827F80B" box="[693,835,1907,1931]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="childressi">
|
||
<emphasis id="B968EAC9FFACFFA31DFDF8A93827F80B" box="[693,835,1907,1931]" italics="true" pageId="7" pageNumber="206">G. childressi</emphasis>
|
||
</taxonomicName>
|
||
, exclusively found associated to deep benthic water masses (
|
||
<quantity id="4CE49B3EFFACFFA31FBDF84B3A28F82E" box="[245,332,1942,1966]" metricMagnitude="1" metricUnit="m" metricValue="2.5" metricValueMax="5.0" metricValueMin="0.0" pageId="7" pageNumber="206" unit="m" value="25.0" valueMax="50.0" valueMin="0.0">0–50 m</quantity>
|
||
of the bottom), has been suggested for
|
||
<taxonomicName id="4C1C4D58FFACFFA31C4FF84A3F26F82E" authority="(Casanova 1996b)" baseAuthorityName="Casanova" baseAuthorityYear="1996" box="[775,1090,1942,1966]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="affinis">
|
||
<emphasis id="B968EAC9FFACFFA31C4FF84A380FF82E" box="[775,875,1942,1966]" italics="true" pageId="7" pageNumber="206">G. affinis</emphasis>
|
||
(Casanova 1996b)
|
||
</taxonomicName>
|
||
. However, as most of the Mar- Eco specimens were caught with a midwater trawl at depth ranges between
|
||
<date id="FFA2101BFFACFFA31CB6F8643FCDF851" box="[1022,1193,1977,2001]" pageId="7" pageNumber="206" value="1500" valueMax="2400">
|
||
1500 and
|
||
<quantity id="4CE49B3EFFACFFA31B39F8643FCDF851" box="[1137,1193,1977,2001]" metricMagnitude="3" metricUnit="m" metricValue="2.4" pageId="7" pageNumber="206" unit="m" value="2400.0">2400</quantity>
|
||
</date>
|
||
m, more than
|
||
<quantity id="4CE49B3EFFACFFA31A1BF8643EF8F851" box="[1363,1436,1977,2001]" metricMagnitude="2" metricUnit="m" metricValue="4.0" pageId="7" pageNumber="206" unit="m" value="400.0">400 m</quantity>
|
||
from the ocean floor,
|
||
<taxonomicName id="4C1C4D58FFACFFA31EC1F8033A8AF875" box="[393,494,2013,2037]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="7" pageNumber="206" phylum="Arthropoda" rank="species" species="affinis">
|
||
<emphasis id="B968EAC9FFACFFA31EC1F8033A8AF875" box="[393,494,2013,2037]" italics="true" pageId="7" pageNumber="206">G. affinis</emphasis>
|
||
</taxonomicName>
|
||
is shown not to be limited to benthic water masses.
|
||
</paragraph>
|
||
<caption id="DF636653FFA3FFAC1FDFFC1138C2FB82" httpUri="https://zenodo.org/record/220339/files/figure.png" pageId="8" pageNumber="207" targetBox="[206,1435,196,942]" targetPageId="8">
|
||
<paragraph id="8BA336DBFFA3FFAC1FDFFC1138C2FB82" blockId="8.[151,1435,972,1026]" pageId="8" pageNumber="207">
|
||
<emphasis id="B968EAC9FFA3FFAC1FDFFC113A76FC61" bold="true" box="[151,274,972,995]" pageId="8" pageNumber="207">FIGURE 4.</emphasis>
|
||
<taxonomicName id="4C1C4D58FFA3FFAC1E50FC1139FFFC62" authority="G.O. Sars 1883" authorityName="G.O. Sars" authorityYear="1883" box="[280,667,972,994]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="8" pageNumber="207" phylum="Arthropoda" rank="species" species="affinis">
|
||
<emphasis id="B968EAC9FFA3FFAC1E50FC113A9DFC62" box="[280,505,972,994]" italics="true" pageId="8" pageNumber="207">Gnathophausia affinis</emphasis>
|
||
G.O. Sars 1883
|
||
</taxonomicName>
|
||
. Adult female: A, lateral view; B, dorsal view; C, antenna (ventral view); D, telson and right uropod (dorsal view) (from G.O. Sars 1885: pl. V, figs 7–10).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BA336DBFFA3FFAC1FDFFB913B8FFB08" blockId="8.[151,641,1100,1160]" pageId="8" pageNumber="207">
|
||
<taxonomicName id="4C1C4D58FFA3FFAC1FDFFB9139E5FBE5" authority="Casanova, 1996" authorityName="Casanova" authorityYear="1996" box="[151,641,1100,1125]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="8" pageNumber="207" phylum="Arthropoda" rank="species" species="childressi">
|
||
<emphasis id="B968EAC9FFA3FFAC1FDFFB9139E5FBE5" bold="true" box="[151,641,1100,1125]" pageId="8" pageNumber="207">
|
||
<emphasis id="B968EAC9FFA3FFAC1FDFFB913AA4FBE5" bold="true" box="[151,448,1100,1125]" italics="true" pageId="8" pageNumber="207">Gnathophausia childressi</emphasis>
|
||
Casanova, 1996
|
||
</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="13272A5EFFA3FFAC1FD7FBAD3B86FB08" box="[159,226,1136,1160]" captionStart="FIGURE 5" captionStartId="9.[151,250,633,656]" captionTargetBox="[152,1436,195,606]" captionTargetId="figure@9.[152,1437,195,606]" captionTargetPageId="9" captionText="FIGURE 5. Gnathophausia childressi Casanova, 1996. A, lateral view; B, antennal scale (dorsal view); C, telson (dorsal view)." httpUri="https://zenodo.org/record/220340/files/figure.png" pageId="8" pageNumber="207">Fig. 5</figureCitation>
|
||
)
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3066550FFA3FFAC1FDFFB6539D9FB4E" box="[151,701,1208,1230]" pageId="8" pageNumber="207" type="description">
|
||
<paragraph id="8BA336DBFFA3FFAC1FDFFB6539D9FB4E" blockId="8.[151,701,1208,1230]" box="[151,701,1208,1230]" pageId="8" pageNumber="207">
|
||
<taxonomicName id="4C1C4D58FFA3FFAC1FDFFB6539E0FB4E" authority="Casanova, 1996b: 192" authorityName="Casanova" authorityPageNumber="192" authorityYear="1996" box="[151,644,1208,1230]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="8" pageNumber="207" phylum="Arthropoda" rank="species" species="childressi">
|
||
<emphasis id="B968EAC9FFA3FFAC1FDFFB653AFEFB4E" box="[151,410,1208,1230]" italics="true" pageId="8" pageNumber="207">Gnathophausia childressi</emphasis>
|
||
Casanova, 1996b: 192
|
||
</taxonomicName>
|
||
–199.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3066550FFA3FFAC1FDFFB273B8AF9D7" pageId="8" pageNumber="207" type="diagnosis">
|
||
<paragraph id="8BA336DBFFA3FFAC1FDFFB273B8AF9D7" blockId="8.[151,1436,1274,2019]" pageId="8" pageNumber="207">
|
||
<emphasis id="B968EAC9FFA3FFAC1FDFFB273A75FA93" bold="true" box="[151,273,1274,1299]" pageId="8" pageNumber="207">Diagnosis.</emphasis>
|
||
Body robust. Carapace large, more or less covering first abdominal somite; rostrum of moderate size, denticulate dorsally, denticles present, but less visible ventrally; posterodorsal spine short; median dorsal keel interrupted in region of cervical groove, forms raised keel proximal to rostrum and extends posteriorly to posterodorsal end; upper lateral keels absent; lower lateral keels continuous, stopping abruptly before the posterolateral margin of carapace; supra-orbital spines present; branchiostegal expansions shaped like collars, antennal spines absent. Apex of antennal scale extending past the outer lateral spine in older specimens. Abdominal somites without dorsal spines; pleura consisting of anterior and posterior rounded lappets, anterior lappets almost as pronounced as posterior lappets in 1–3 abdominal somites; pleura of sixth abdominal somite rounded. Telson as long as uropods, linguiform; apex armed with small spiniform setae. Obtains lengths from
|
||
<quantity id="4CE49B3EFFA3FFAC1BDFF9C63E7AF9B3" box="[1175,1310,1563,1587]" metricMagnitude="-2" metricUnit="m" metricValue="6.35" metricValueMax="10.2" metricValueMin="2.5" pageId="8" pageNumber="207" unit="mm" value="63.5" valueMax="102.0" valueMin="25.0">25–102 mm</quantity>
|
||
(Casanova 1996b).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3066550FFA3FFAC1F8FF9BF3A0FF943" pageId="8" pageNumber="207" type="distribution">
|
||
<paragraph id="8BA336DBFFA3FFAC1F8FF9BF3A0FF943" blockId="8.[151,1436,1274,2019]" pageId="8" pageNumber="207">
|
||
<emphasis id="B968EAC9FFA3FFAC1F8FF9BF3A04F9FB" bold="true" box="[199,352,1634,1659]" pageId="8" pageNumber="207">Distribution.</emphasis>
|
||
<taxonomicName id="4C1C4D58FFA3FFAC1E20F9B93A90F9FB" box="[360,500,1635,1659]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="8" pageNumber="207" phylum="Arthropoda" rank="species" species="childressi">
|
||
<emphasis id="B968EAC9FFA3FFAC1E20F9B93A90F9FB" box="[360,500,1635,1659]" italics="true" pageId="8" pageNumber="207">G. childressi</emphasis>
|
||
</taxonomicName>
|
||
is a Pacific species collected from the San Clemente Basin and East Cortes Basin (off California). It has been collected at
|
||
<quantity id="4CE49B3EFFA3FFAC1D2AF95A39DDF91F" box="[610,697,1671,1695]" metricMagnitude="3" metricUnit="m" metricValue="2.0" pageId="8" pageNumber="207" unit="m" value="2000.0">2000 m</quantity>
|
||
in the San Clemente Basin and
|
||
<quantity id="4CE49B3EFFA3FFAC1B62F95A3FE4F91F" box="[1066,1152,1671,1695]" metricMagnitude="3" metricUnit="m" metricValue="1.8" pageId="8" pageNumber="207" unit="m" value="1800.0">1800 m</quantity>
|
||
in the East Cortes Basin (Casanova 1996b).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3066550FFA3FFAC1F8FF9123E24F863" pageId="8" pageNumber="207" type="discussion">
|
||
<paragraph id="8BA336DBFFA3FFAC1F8FF91238ADF88B" blockId="8.[151,1436,1274,2019]" pageId="8" pageNumber="207">
|
||
<emphasis id="B968EAC9FFA3FFAC1F8FF9123A5FF967" bold="true" box="[199,315,1743,1767]" pageId="8" pageNumber="207">Remarks.</emphasis>
|
||
Specimens of
|
||
<taxonomicName id="4C1C4D58FFA3FFAC1EACF90D3914F967" box="[484,624,1743,1767]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="8" pageNumber="207" phylum="Arthropoda" rank="species" species="childressi">
|
||
<emphasis id="B968EAC9FFA3FFAC1EACF90D3914F967" box="[484,624,1743,1767]" italics="true" pageId="8" pageNumber="207">G. childressi</emphasis>
|
||
</taxonomicName>
|
||
were first collected, and sorted as
|
||
<taxonomicName id="4C1C4D58FFA3FFAC1CB5F9123FCDF967" box="[1021,1193,1743,1767]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="8" pageNumber="207" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B968EAC9FFA3FFAC1CB5F9123FCDF967" box="[1021,1193,1743,1767]" italics="true" pageId="8" pageNumber="207">Gnathophausia</emphasis>
|
||
</taxonomicName>
|
||
sp. by J.J. Childress, and later identified and described as a new species by Casanova (1996b).
|
||
</paragraph>
|
||
<paragraph id="8BA336DBFFA3FFAC1F8FF8C539B1F8F7" blockId="8.[151,1436,1274,2019]" pageId="8" pageNumber="207">
|
||
<taxonomicName id="4C1C4D58FFA3FFAC1F8FF8C53A37F8AF" box="[199,339,1815,1839]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="8" pageNumber="207" phylum="Arthropoda" rank="species" species="childressi">
|
||
<emphasis id="B968EAC9FFA3FFAC1F8FF8C53A37F8AF" box="[199,339,1815,1839]" italics="true" pageId="8" pageNumber="207">G. childressi</emphasis>
|
||
</taxonomicName>
|
||
is morphologically similar to the Atlantic Ocean distributed species
|
||
<taxonomicName id="4C1C4D58FFA3FFAC1B28F8C53FA2F8AF" box="[1120,1222,1815,1839]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="8" pageNumber="207" phylum="Arthropoda" rank="species" species="affinis">
|
||
<emphasis id="B968EAC9FFA3FFAC1B28F8C53FA2F8AF" box="[1120,1222,1815,1839]" italics="true" pageId="8" pageNumber="207">G. affinis</emphasis>
|
||
</taxonomicName>
|
||
, but is most easily distinguished from its Atlantic relative by the absence of upper lateral keels and the pleura of sixth somite that is not drawn out into a spine, but rounded posteriorly.
|
||
</paragraph>
|
||
<paragraph id="8BA336DBFFA3FFAC1F8FF85E3E24F863" blockId="8.[151,1436,1274,2019]" pageId="8" pageNumber="207">
|
||
Based on observations where
|
||
<taxonomicName id="4C1C4D58FFA3FFAC1D68F85939CAF81B" box="[544,686,1923,1947]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="8" pageNumber="207" phylum="Arthropoda" rank="species" species="childressi">
|
||
<emphasis id="B968EAC9FFA3FFAC1D68F85939CAF81B" box="[544,686,1923,1947]" italics="true" pageId="8" pageNumber="207">G. childressi</emphasis>
|
||
</taxonomicName>
|
||
has only been reported from near bottom trawl samples in close vicinity to the deep sea benthos, it is suggested that unlike other
|
||
<taxonomicName id="4C1C4D58FFA3FFAC1CEBF87A3F34F83F" box="[931,1104,1959,1983]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="8" pageNumber="207" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B968EAC9FFA3FFAC1CEBF87A3F34F83F" box="[931,1104,1959,1983]" italics="true" pageId="8" pageNumber="207">Gnathophausia</emphasis>
|
||
</taxonomicName>
|
||
species,
|
||
<taxonomicName id="4C1C4D58FFA3FFAC1BF7F8753E2AF83F" box="[1215,1358,1959,1983]" class="Malacostraca" family="Lophogastridae" genus="Gnathophausia" kingdom="Animalia" order="Lophogastrida" pageId="8" pageNumber="207" phylum="Arthropoda" rank="species" species="childressi">
|
||
<emphasis id="B968EAC9FFA3FFAC1BF7F8753E2AF83F" box="[1215,1358,1959,1983]" italics="true" pageId="8" pageNumber="207">G. childressi</emphasis>
|
||
</taxonomicName>
|
||
is not pelagic, but has a more hyperbenthic habitat preference, associated to the deep sea benthic boundary layer.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |