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<document id="D5D533EE6943D34E33CAEF9EBB7739A4" ID-DOI="10.5281/zenodo.293998" ID-GBIF-Dataset="da564646-ec8a-4aa6-8c2a-591255facd0a" ID-ISSN="1175-5326" ID-Zenodo-Dep="293998" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460215610155" checkinUser="plazi" docAuthor="Kilgallen, Niamh M." docDate="2010" docId="1B306721FFBCFFF82DE4FB47FB93FC81" docLanguage="en" docName="zt02426p053.pdf.imf" docOrigin="Zootaxa 2426" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Aristias excavatus Kilgallen, 2010, sp. nov." docType="treatment" docVersion="12" lastPageNumber="51" masterDocId="E7091F59FFBEFFF02D73FF8BFFBDFFF6" masterDocTitle="A new Antarctic species of Aristias Boeck (Crustacea, Amphipoda, Aristiidae), with remarks on the genus in Antarctica" masterLastPageNumber="53" masterPageNumber="43" pageNumber="45" updateTime="1698236998713" updateUser="plazi">
<mods:mods id="0B2F3FC5B752263B8E72188C5B677C3C" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="65B2FF1DA24CAE939CCA8C2369090F87">
<mods:title id="4D9CDC9B13B8469974CFAAD05CF3C20C">A new Antarctic species of Aristias Boeck (Crustacea, Amphipoda, Aristiidae), with remarks on the genus in Antarctica</mods:title>
</mods:titleInfo>
<mods:name id="0F3BE7435F1CC64A32EF50188851C316" type="personal">
<mods:role id="426C39DE3C1260DD2FF29B6B44FBB509">
<mods:roleTerm id="EA43E096C9477DAA31EEB8B80CDD50E8">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="06AA36BCF7119E1BB5561CEB901BE319">Kilgallen, Niamh M.</mods:namePart>
</mods:name>
<mods:typeOfResource id="01940F4BADB2E2AA7768E00EF6BF2F75">text</mods:typeOfResource>
<mods:relatedItem id="3A9AFB039ECD5AEF985EA2F989ED48DE" type="host">
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<mods:title id="9639E002FCE55C65B5F0B093C6071227">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="B1649B7500D46C5C22A2BFE48866B6A4">
<mods:date id="DB138E2BB61851443EA7E3472BC088F5">2010</mods:date>
<mods:detail id="1B0CF8C318F8C9C916D4A9AE6E5E2234" type="volume">
<mods:number id="2063087A0A4F80C5EC958474A99C2432">2426</mods:number>
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<mods:start id="B6959E9EEE1FC7A2719D298AE570E708">43</mods:start>
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<mods:classification id="1F10FEE7C2BA44926B5C2C567E3C81D6">journal article</mods:classification>
<mods:identifier id="EC36977BEF402AC78C50A2EA405642E4" type="DOI">10.5281/zenodo.293998</mods:identifier>
<mods:identifier id="D559E0FF3154552569AA044BB4B8E5D6" type="GBIF-Dataset">da564646-ec8a-4aa6-8c2a-591255facd0a</mods:identifier>
<mods:identifier id="A1B17DDB77B1D9AC5A191A1C23C9F37D" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="E68F0256EF05C405D4AEC9D08F933C55" type="Zenodo-Dep">293998</mods:identifier>
</mods:mods>
<treatment id="1B306721FFBCFFF82DE4FB47FB93FC81" ID-DOI="http://doi.org/10.5281/zenodo.5674682" ID-GBIF-Taxon="119384139" ID-Zenodo-Dep="5674682" LSID="urn:lsid:plazi:treatment:1B306721FFBCFFF82DE4FB47FB93FC81" httpUri="http://treatment.plazi.org/id/1B306721FFBCFFF82DE4FB47FB93FC81" lastPageId="8" lastPageNumber="51" pageId="2" pageNumber="45">
<subSubSection id="DB8385BCFFBCFFF22DE4FB47FEADFAFF" pageId="2" pageNumber="45" type="nomenclature">
<paragraph id="9326D637FFBCFFF22DE4FB47FE6AFB10" blockId="2.[151,471,1228,1289]" box="[151,471,1228,1254]" pageId="2" pageNumber="45">
<heading id="C86E615BFFBCFFF22DE4FB47FE6AFB10" bold="true" box="[151,471,1228,1254]" fontSize="11" level="1" pageId="2" pageNumber="45" reason="1">
<emphasis id="A1ED0A25FFBCFFF22DE4FB47FE6AFB10" bold="true" box="[151,471,1228,1254]" pageId="2" pageNumber="45">
<taxonomicName id="5499ADB4FFBCFFF22DE4FB47FECFFB10" ID-CoL="GNPX" box="[151,370,1228,1254]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="2" pageNumber="45" phylum="Arthropoda" rank="species" species="excavatus" status="sp. nov.">
<emphasis id="A1ED0A25FFBCFFF22DE4FB47FECFFB10" bold="true" box="[151,370,1228,1254]" italics="true" pageId="2" pageNumber="45">Aristias excavatus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="BADEB75EFFBCFFF22C0AFB47FE6AFB10" box="[377,471,1228,1254]" pageId="2" pageNumber="45" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="9326D637FFBCFFF22DE4FB64FEADFAFF" blockId="2.[151,471,1228,1289]" box="[151,272,1263,1289]" pageId="2" pageNumber="45">
(
<figureCitation id="0BA2CAB2FFBCFFF22DECFB64FEBAFAFF" box="[159,263,1263,1289]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStartId-0="2.[151,255,1126,1150]" captionStartId-1="4.[151,255,1923,1947]" captionStartId-2="5.[151,255,1924,1948]" captionStartId-3="6.[151,255,1954,1978]" captionTargetBox-0="[228,1363,218,1090]" captionTargetBox-1="[177,1402,205,1894]" captionTargetBox-2="[199,1412,209,1875]" captionTargetBox-3="[179,1410,223,1904]" captionTargetId-0="figure@2.[204,1382,197,1103]" captionTargetId-1="figure@4.[167,1419,197,1898]" captionTargetId-2="figure@5.[162,1424,194,1902]" captionTargetId-3="figure@6.[171,1415,194,1933]" captionTargetPageId-0="2" captionTargetPageId-1="4" captionTargetPageId-2="5" captionTargetPageId-3="6" captionText-0="FIGURE 1. Aristias excavatus sp. nov., holotype male habitus, 10.25 mm, NIWA 58157. Scale bar = 2 mm." captionText-1="FIGURE 2. Aristias excavatus sp. nov., holotype male, 10.25 mm, NIWA 58157. Scale bars: a = 0.2 mm (antenna 2), b = 0.2 mm (mouthparts)." captionText-2="FIGURE 3. Aristias excavatus sp. nov., holotype male, 10.25 mm, NIWA 58157. Scale bars: a = 0.4 mm (gnathopods), b = 0.4 mm (pereopods)." captionText-3="FIGURE 4. Aristias excavatus sp. nov., holotype male, 10.25 mm, NIWA 58157. Scale bars: a = 0.4 mm (pereopods), b = 0.2 mm (uropods and telson)." httpUri-0="https://zenodo.org/record/293999/files/figure.png" httpUri-1="https://zenodo.org/record/294000/files/figure.png" httpUri-2="https://zenodo.org/record/294001/files/figure.png" httpUri-3="https://zenodo.org/record/294002/files/figure.png" pageId="2" pageNumber="45">Figs 1–4</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="DB8385BCFFBCFFF22DE4FAB2FC69FA68" pageId="2" pageNumber="45" type="materials_examined">
<paragraph id="9326D637FFBCFFF22DE4FAB2FC69FA68" blockId="2.[151,1437,1337,2035]" pageId="2" pageNumber="45">
<emphasis id="A1ED0A25FFBCFFF22DE4FAB2FEECFAA5" bold="true" box="[151,337,1337,1363]" pageId="2" pageNumber="45">
<typeStatus id="4C226895FFBCFFF22DE4FAB2FF68FAA5" box="[151,213,1337,1363]" pageId="2" pageNumber="45">Type</typeStatus>
material.
</emphasis>
<typeStatus id="4C226895FFBCFFF22C2AFAB2FE76FAA5" box="[345,459,1337,1363]" pageId="2" pageNumber="45" type="holotype">Holotype</typeStatus>
, male 10.25 mm,
<collectionCode id="F5884EF2FFBCFFF22FD6FAB2FD4FFAA5" box="[677,754,1337,1363]" country="New Zealand" httpUri="http://grbio.org/cool/nyq3-3g6s" name="National Institute of Water and Atmospheric Research" pageId="2" pageNumber="45">NIWA</collectionCode>
58157, Ross Sea,
<geoCoordinate id="F6ADB0F0FFBCFFF22EA1FAB2FBE7FAA5" box="[978,1114,1337,1363]" direction="south" orientation="latitude" pageId="2" pageNumber="45" precision="9" value="-76.759">76º45.54’S</geoCoordinate>
,
<geoCoordinate id="F6ADB0F0FFBCFFF22914FAB2FABDFAA5" box="[1127,1280,1337,1363]" direction="east" orientation="longitude" pageId="2" pageNumber="45" precision="9" value="167.82217">167º49.33’E</geoCoordinate>
,
<quantity id="54617BD2FFBCFFF2287EFAB2FA2AFAA5" box="[1293,1431,1337,1363]" metricMagnitude="2" metricUnit="m" metricValue="7.38" metricValueMax="7.52" metricValueMin="7.24" pageId="2" pageNumber="45" unit="m" value="738.0" valueMax="752.0" valueMin="724.0">724–752 m</quantity>
, taken from the sponge
<taxonomicName id="5499ADB4FFBCFFF22CD2FAD4FC3CFA8F" authority="Kirkpatrick, 1907" authorityName="Kirkpatrick" authorityYear="1907" box="[417,897,1375,1401]" class="Demospongiae" family="Hymedesmiidae" genus="Myxodoryx" kingdom="Animalia" order="Poecilosclerida" pageId="2" pageNumber="45" phylum="Porifera" rank="species" species="hanitschi">
<emphasis id="A1ED0A25FFBCFFF22CD2FAD4FD2AFA8E" box="[417,663,1375,1400]" italics="true" pageId="2" pageNumber="45">Myxodoryx hanitschi</emphasis>
(Kirkpatrick, 1907)
</taxonomicName>
(Demospongiae,
<taxonomicName id="5499ADB4FFBCFFF22923FAD4FABBFA8F" box="[1104,1286,1375,1401]" class="Demospongiae" kingdom="Animalia" order="Poecilosclerida" pageId="2" pageNumber="45" phylum="Porifera" rank="order">Poecilosclerida</taxonomicName>
,
<taxonomicName id="5499ADB4FFBCFFF22862FAD4FA29FA8F" box="[1297,1428,1375,1401]" class="Demospongiae" family="Myxillidae" kingdom="Animalia" order="Poecilosclerida" pageId="2" pageNumber="45" phylum="Porifera" rank="family">Myxillidae</taxonomicName>
) (
<collectionCode id="F5884EF2FFBCFFF22DEDFA0FFF50FA68" box="[158,237,1412,1438]" country="New Zealand" httpUri="http://grbio.org/cool/nyq3-3g6s" name="National Institute of Water and Atmospheric Research" pageId="2" pageNumber="45">NIWA</collectionCode>
36399), bottom fishing trawl,
<collectionCode id="F5884EF2FFBCFFF22F27FA0FFD2CFA68" box="[596,657,1412,1438]" country="Madagascar" httpUri="http://biocol.org/urn:lsid:biocol.org:col:13842" name="Parc de Tsimbazaza" pageId="2" pageNumber="45">TAN</collectionCode>
0802/
<date id="E727F0F7FFBCFFF22FA7FA0FFC36FA68" box="[724,907,1412,1438]" pageId="2" pageNumber="45" value="1970-02-15">70, 15 February</date>
2008.
</paragraph>
</subSubSection>
<subSubSection id="DB8385BCFFBCFFF22DB5FA22FEF8FA1F" pageId="2" pageNumber="45" type="etymology">
<paragraph id="9326D637FFBCFFF22DB5FA22FEF8FA1F" blockId="2.[151,1437,1337,2035]" pageId="2" pageNumber="45">
<emphasis id="A1ED0A25FFBCFFF22DB5FA22FEEEFA35" bold="true" box="[198,339,1449,1475]" pageId="2" pageNumber="45">Etymology.</emphasis>
The specific name,
<taxonomicName id="5499ADB4FFBCFFF22F22FA22FCA5FA35" authority="Latin" authorityName="Latin" box="[593,792,1449,1475]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="2" pageNumber="45" phylum="Arthropoda" rank="species" species="excavatus">
<emphasis id="A1ED0A25FFBCFFF22F22FA22FD71FA34" box="[593,716,1449,1474]" italics="true" pageId="2" pageNumber="45">excavatus,</emphasis>
Latin
</taxonomicName>
, refers to the excavate anterior margin of the lateral cephalic lobes.
</paragraph>
</subSubSection>
<subSubSection id="DB8385BCFFBCFFF22DB5FA7FFB83F93F" pageId="2" pageNumber="45" type="diagnosis">
<paragraph id="9326D637FFBCFFF22DB5FA7FFB83F93F" blockId="2.[151,1437,1337,2035]" pageId="2" pageNumber="45">
<emphasis id="A1ED0A25FFBCFFF22DB5FA7FFEFBF9F8" bold="true" box="[198,326,1524,1550]" pageId="2" pageNumber="45">Diagnosis.</emphasis>
Lateral cephalic lobes broadly rounded, distinctly excavate along anterior margin; eyes apparently absent. Epistome and upper lip bounded by slight slit, upper lip projecting in front of epistome. Gnathopod 2 coxa well developed. Pereopod 3 coxa slightly expanded distally. Pereopods 5–7 with small spurs on anterodistal corner of propodus; coxa 5 and 6 producing posterior lobe, narrowly rounded ventrally. Epimeron 3 posterior margin smooth. Uropod 3 rami subequal in length; outer ramus article 2 more than half the length of article 1. Telson deeply cleft to 65% of length, lobes subtriangular.
</paragraph>
</subSubSection>
<subSubSection id="DB8385BCFFBCFFF32DB5F95FFAB1F9E1" lastPageId="3" lastPageNumber="46" pageId="2" pageNumber="45" type="description">
<paragraph id="9326D637FFBCFFF32DB5F95FFD92FE41" blockId="2.[151,1437,1337,2035]" lastBlockId="3.[151,1437,152,2007]" lastPageId="3" lastPageNumber="46" pageId="2" pageNumber="45">
<emphasis id="A1ED0A25FFBCFFF22DB5F95FFD8AF918" bold="true" box="[198,567,1748,1774]" pageId="2" pageNumber="45">
Description of male
<typeStatus id="4C226895FFBCFFF22CB7F95FFD8FF918" box="[452,562,1748,1774]" pageId="2" pageNumber="45" type="holotype">holotype</typeStatus>
.
</emphasis>
<emphasis id="A1ED0A25FFBCFFF22F4CF95FFDC3F91B" box="[575,638,1748,1773]" italics="true" pageId="2" pageNumber="45">Head</emphasis>
deeper than long; lateral cephalic lobes broadly rounded, distinctly excavate along anterior margin; rostrum absent; eyes apparently absent.
<emphasis id="A1ED0A25FFBCFFF22E89F972FBC9F8E4" box="[1018,1140,1785,1810]" italics="true" pageId="2" pageNumber="45">Antenna 1</emphasis>
peduncle article 2 about half the length of article 1; flagellum missing from specimen.
<emphasis id="A1ED0A25FFBCFFF22E1AF894FC5DF8CE" box="[873,992,1823,1848]" italics="true" pageId="2" pageNumber="45">Antenna 2</emphasis>
article 3 short, subequal in length and breadth; article 4 the longest; flagellum 7+ articulate, broken at seventh article; calceoli absent.
<emphasis id="A1ED0A25FFBCFFF2286FF8CFFF57F874" italics="true" pageId="2" pageNumber="45">Mouthpart bundle</emphasis>
subquadrate.
<emphasis id="A1ED0A25FFBCFFF22CE5F8E2FDBAF874" box="[406,519,1897,1922]" italics="true" pageId="2" pageNumber="45">Epistome</emphasis>
and
<emphasis id="A1ED0A25FFBCFFF22F36F8E2FD0BF874" box="[581,694,1897,1922]" italics="true" pageId="2" pageNumber="45">upper lip</emphasis>
fused, bounded by slight slit; upper lip produced in front of epistome.
<emphasis id="A1ED0A25FFBCFFF22C60F804FE35F85E" box="[275,392,1935,1960]" italics="true" pageId="2" pageNumber="45">Lower lip</emphasis>
apically finely setose, apices of lobes pointed. Mandible molar a sparsely-setose flap; palp attached centrally, with a row of A-2 and short D-3 setae, and 3 short E-3 setae, article 3 slightly falcate, about 80% the length of article 2; incisor smooth on right mandible, slightly crenate at inner margin of left; lacinia mobilis present only on left mandible in the form of a small peg; accessory setal row absent.
<emphasis id="A1ED0A25FFBDFFF32858FF13FA21FF47" box="[1323,1436,152,177]" italics="true" pageId="3" pageNumber="46">Maxilla 1</emphasis>
inner plate broad, strongly setose with at least 8 pappose setae along margin; outer plate presumed to be in a modified 7/4 arrangement, as diagnostic for the family [orientation on slide obscuring clear view of setaltooth number and arrangement]; palp 2-articulate with 3 strong robust setae and distinct serration along the apical margin.
<emphasis id="A1ED0A25FFBDFFF32C21FEA6FE77FEB0" box="[338,458,301,326]" italics="true" pageId="3" pageNumber="46">Maxilla 2</emphasis>
inner plate broad, outer plate narrower.
<emphasis id="A1ED0A25FFBDFFF32EB6FEA6FBF6FEB0" box="[965,1099,301,326]" italics="true" pageId="3" pageNumber="46">Maxilliped</emphasis>
inner plate broad, apically tapering and crowned with 1 stout robust seta; outer plate large, reaching to midway of palp article 3, apically rounded and with 3 simple setae, inner margin with row of slender robust setae; palp well developed, broad, 4- articulate, dactylus lacking unguis.
</paragraph>
<paragraph id="9326D637FFBDFFF32DB5FE49FD0CFBA1" blockId="3.[151,1437,152,2007]" pageId="3" pageNumber="46">
<emphasis id="A1ED0A25FFBDFFF32DB5FE49FED8FE2D" box="[198,357,450,475]" italics="true" pageId="3" pageNumber="46">Gnathopod 1</emphasis>
parachelate; coxa vestigial, hidden by coxa 2; basis long, lacking setae; ischium short, subequal in length and breadth; carpus shorter than propodus; propodus tapering distally, posterior margin very slightly concave, minutely serrate; dactylus bifid.
<emphasis id="A1ED0A25FFBDFFF32E5BFD86FC7EFDD0" box="[808,963,525,550]" italics="true" pageId="3" pageNumber="46">Gnathopod 2</emphasis>
minutely chelate, coxa well developed, subequal in length to coxa 3; ischium very long; carpus very long, posterior margin straight; propodus long, posterior margin straight.
<emphasis id="A1ED0A25FFBDFFF32CA6FDD3FDDCFD87" box="[469,609,600,625]" italics="true" pageId="3" pageNumber="46">Pereopod 3</emphasis>
coxa slightly expanded distally; merus expanded anteriorly; carpus short, 1.5 × longer than broad; propodus long, subequal in length to merus, with small spur on posterodistal corner.
<emphasis id="A1ED0A25FFBDFFF32D9CFD29FECBFD4D" box="[239,374,674,699]" italics="true" pageId="3" pageNumber="46">Pereopod 4</emphasis>
coxa longer than broad with weak posteroventral lobe; merus expanded anteriorly; carpus short, 1.5 × longer than broad; propodus long, subequal in length to merus, with small spur on posterodistal corner.
<emphasis id="A1ED0A25FFBDFFF32D87FD66FE3DFCF0" box="[244,384,749,774]" italics="true" pageId="3" pageNumber="46">Pereopod 5</emphasis>
coxa posterior lobe strongly produced, narrowly rounded ventrally; basis longer than broad, weakly crenate posteriorly, posterodistal corner rounded and produced into slight lobe; merus slightly expanded posteriorly; carpus short, 1.3 × longer than broad; propodus long, slightly longer than merus, with weak spur at anterodistal corner.
<emphasis id="A1ED0A25FFBDFFF32F4AFCD6FD75FC80" box="[569,712,861,886]" italics="true" pageId="3" pageNumber="46">Pereopod 6</emphasis>
coxa posterior lobe strongly produced, narrowly rounded ventrally; basis longer than broad, crenate posteriorly, posterodistal corner rounded and produced into slight lobe; merus expanded posteriorly; carpus short, 1.3 × longer than broad; propodus long, slightly longer than merus with weak spur at anterodistal corner.
<emphasis id="A1ED0A25FFBDFFF32FC2FC46FC87FC10" box="[689,826,973,998]" italics="true" pageId="3" pageNumber="46">Pereopod 7</emphasis>
coxa not bilobate; basis longer than broad, crenate and expanded posteriorly, posterodistal corner broadly rounded and produced into lobe; merus expanded posteriorly; carpus 1.3 × longer than broad; propodus long, longer than merus, with weak spur at anterodistal corner.
<emphasis id="A1ED0A25FFBDFFF32D9CFBB6FE95FBA0" box="[239,296,1085,1110]" italics="true" pageId="3" pageNumber="46">Gills</emphasis>
from gnathopod 2 to pereopod 6.
</paragraph>
<paragraph id="9326D637FFBDFFF32DB5FBE8FC44FA51" blockId="3.[151,1437,152,2007]" pageId="3" pageNumber="46">
<emphasis id="A1ED0A25FFBDFFF32DB5FBE8FEECFB8A" box="[198,337,1123,1148]" italics="true" pageId="3" pageNumber="46">Epimeron 1</emphasis>
anterodistal corner subquadrate.
<emphasis id="A1ED0A25FFBDFFF32FAFFBE8FCDAFB8A" box="[732,871,1123,1148]" italics="true" pageId="3" pageNumber="46">Epimeron 2</emphasis>
posteroventral corner subquadrate.
<emphasis id="A1ED0A25FFBDFFF32861FBE8FA21FB8A" box="[1298,1436,1123,1148]" italics="true" pageId="3" pageNumber="46">Epimeron 3</emphasis>
posterior margin smooth, posteroventral corner subacute, not produced.
<emphasis id="A1ED0A25FFBDFFF32E87FB03FB3AFB57" box="[1012,1159,1160,1185]" italics="true" pageId="3" pageNumber="46">Urosomite 1</emphasis>
with dorsal depression followed posteriorly by rounded hump.
<emphasis id="A1ED0A25FFBDFFF32F07FB26FD5AFB30" box="[628,743,1197,1222]" italics="true" pageId="3" pageNumber="46">Uropod 1</emphasis>
peduncle subequal in length to rami, strongly armed with robust setae minutely and serrate laterally; rami subequal in length, armed with robust setae and minutely serrate apically.
<emphasis id="A1ED0A25FFBDFFF32C26FB73FE78FAE7" box="[341,453,1272,1297]" italics="true" pageId="3" pageNumber="46">Uropod 2</emphasis>
subequal in length to rami, with lateral row of robust setae; rami subequal in length, minutely serrate along one margin.
<emphasis id="A1ED0A25FFBDFFF32F46FA96FD18FAC0" box="[565,677,1309,1334]" italics="true" pageId="3" pageNumber="46">Uropod 3</emphasis>
peduncle slightly shorter than rami, not armed with robust setae; rami subequal in length; outer ramus 2 articulate with article 2 more than half the length of article 1; inner ramus minutely serrate along inner margin.
<emphasis id="A1ED0A25FFBDFFF32FDDFAE3FD44FA77" box="[686,761,1384,1409]" italics="true" pageId="3" pageNumber="46">Telson</emphasis>
subequal in length and breadth, deeply cleft to 65% of length, lobes subtriangular, each bearing 1 lateral and 1 apical robust seta.
</paragraph>
<paragraph id="9326D637FFBDFFF32DB5FA39FAB1F9E1" blockId="3.[151,1437,152,2007]" pageId="3" pageNumber="46">
<emphasis id="A1ED0A25FFBDFFF32DB5FA39FE92FA3A" bold="true" box="[198,303,1458,1484]" pageId="3" pageNumber="46">Ecology.</emphasis>
The specimen was found with a sample of frozen sponge. It is not known whether the amphipod was living on the surface of, or living within the pore space of the sponge. However, as other members of the family
<taxonomicName id="5499ADB4FFBDFFF32D98FA76FEE3F9E1" box="[235,350,1533,1559]" class="Malacostraca" family="Aristiidae" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="family">Aristiidae</taxonomicName>
are known to be inquilinous, it is likely that that is also the case for this species.
</paragraph>
</subSubSection>
<subSubSection id="DB8385BCFFBDFFF82DB5F9A9FB93FC81" lastPageId="8" lastPageNumber="51" pageId="3" pageNumber="46" type="discussion">
<paragraph id="9326D637FFBDFFF72DB5F9A9FDAEF9B4" blockId="3.[151,1437,152,2007]" lastBlockId="7.[151,1437,1464,2012]" lastPageId="7" lastPageNumber="50" pageId="3" pageNumber="46">
<emphasis id="A1ED0A25FFBDFFF32DB5F9A9FE82F9CA" bold="true" box="[198,319,1570,1596]" pageId="3" pageNumber="46">Remarks.</emphasis>
<taxonomicName id="5499ADB4FFBDFFF32C3BF9A8FDA2F9CA" box="[328,543,1571,1596]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="excavatus" status="sp. nov.">
<emphasis id="A1ED0A25FFBDFFF32C3BF9A8FDA2F9CA" box="[328,543,1571,1596]" italics="true" pageId="3" pageNumber="46">Aristias excavatus</emphasis>
</taxonomicName>
<emphasis id="A1ED0A25FFBDFFF32F5AF9A9FD3AF9CA" bold="true" box="[553,647,1570,1596]" pageId="3" pageNumber="46">
<taxonomicNameLabel id="BADEB75EFFBDFFF32F5AF9A9FD3AF9CA" box="[553,647,1570,1596]" pageId="3" pageNumber="46" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
is the twenty-eighth known species of
<taxonomicName id="5499ADB4FFBDFFF3292EF9A8FB05F9CA" box="[1117,1208,1571,1596]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="genus">
<emphasis id="A1ED0A25FFBDFFF3292EF9A8FB05F9CA" box="[1117,1208,1571,1596]" italics="true" pageId="3" pageNumber="46">Aristias</emphasis>
</taxonomicName>
. Of these, nine are blind, either lacking eyes completely, or having rudimentary eyes that lack ommatidea. Of these blind species of
<taxonomicName id="5499ADB4FFBDFFF32DC4F9E6FEAFF970" box="[183,274,1645,1670]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="genus">
<emphasis id="A1ED0A25FFBDFFF32DC4F9E6FEAFF970" box="[183,274,1645,1670]" italics="true" pageId="3" pageNumber="46">Aristias</emphasis>
</taxonomicName>
, only
<taxonomicName id="5499ADB4FFBDFFF32C2EF9E6FE4FF970" box="[349,498,1645,1670]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="excavatus">
<emphasis id="A1ED0A25FFBDFFF32C2EF9E6FE4FF970" box="[349,498,1645,1670]" italics="true" pageId="3" pageNumber="46">A. excavatus</emphasis>
</taxonomicName>
and
<taxonomicName id="5499ADB4FFBDFFF32F5FF9E6FD07F970" box="[556,698,1645,1670]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="adrogans">
<emphasis id="A1ED0A25FFBDFFF32F5FF9E6FD07F970" box="[556,698,1645,1670]" italics="true" pageId="3" pageNumber="46">A. adrogans</emphasis>
</taxonomicName>
have excavated lateral cephalic lobes. The new species differs from
<taxonomicName id="5499ADB4FFBDFFF32DABF918FEDAF95A" box="[216,359,1683,1708]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="adrogans">
<emphasis id="A1ED0A25FFBDFFF32DABF918FEDAF95A" box="[216,359,1683,1708]" italics="true" pageId="3" pageNumber="46">A. adrogans</emphasis>
</taxonomicName>
in the shape of the epistome/upper lip complex, of which the upper lip is unprojecting and separated from the epistome by a small notch in
<taxonomicName id="5499ADB4FFBDFFF32F8EF933FC28F927" box="[765,917,1720,1745]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="adrogans">
<emphasis id="A1ED0A25FFBDFFF32F8EF933FC28F927" box="[765,917,1720,1745]" italics="true" pageId="3" pageNumber="46">A. adrogans</emphasis>
</taxonomicName>
, but is projecting and separated from the epistome only by a slit in this species. Also, that species has a uropod 3 inner ramus which also distinctly shorter than the outer ramus, as well as being quite broad and tapering just at the apex, whereas
<taxonomicName id="5499ADB4FFBDFFF32874F888FA26F8EA" box="[1287,1435,1795,1820]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="excavatus">
<emphasis id="A1ED0A25FFBDFFF32874F888FA26F8EA" box="[1287,1435,1795,1820]" italics="true" pageId="3" pageNumber="46">A. excavatus</emphasis>
</taxonomicName>
has rami that are subequal in length, with the inner ramus uniformly tapering from base to tip.
<taxonomicName id="5499ADB4FFBDFFF3284FF8A3FEB1F890" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="excavatus">
<emphasis id="A1ED0A25FFBDFFF3284FF8A3FEB1F890" italics="true" pageId="3" pageNumber="46">Aristias excavatus</emphasis>
</taxonomicName>
is the first known blind Antarctic species and thus differs from the two other species recorded as having an Antarctic distribution,
<taxonomicName id="5499ADB4FFBDFFF32F39F8F8FC05F87A" authority="Walker, 1906" authorityName="Walker" authorityYear="1906" box="[586,952,1906,1932]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFBDFFF32F39F8F8FCBDF87A" box="[586,768,1907,1932]" italics="true" pageId="3" pageNumber="46">A. antarcticus</emphasis>
Walker, 1906
</taxonomicName>
, and
<taxonomicName id="5499ADB4FFBDFFF32E8DF8F8FA24F87A" authority="K.H. Barnard, 1932" authorityName="K.H. Barnard" authorityYear="1932" box="[1022,1433,1906,1932]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="collinus">
<emphasis id="A1ED0A25FFBDFFF32E8DF8F8FB36F87A" box="[1022,1163,1907,1932]" italics="true" pageId="3" pageNumber="46">A. collinus</emphasis>
K.H. Barnard, 1932
</taxonomicName>
. Additionally, it differs from
<taxonomicName id="5499ADB4FFBDFFF32C92F813FDE3F847" box="[481,606,1944,1969]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="collinus">
<emphasis id="A1ED0A25FFBDFFF32C92F813FDE3F847" box="[481,606,1944,1969]" italics="true" pageId="3" pageNumber="46">A. collinus</emphasis>
</taxonomicName>
by having an angular upper lip which projects in front of the epistome, whereas that of
<taxonomicName id="5499ADB4FFBDFFF32C3DF836FE74F820" box="[334,457,1981,2006]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="collinus">
<emphasis id="A1ED0A25FFBDFFF32C3DF836FE74F820" box="[334,457,1981,2006]" italics="true" pageId="3" pageNumber="46">A. collinus</emphasis>
</taxonomicName>
is rounded and not projecting.
<taxonomicName id="5499ADB4FFBDFFF32E42F836FBBBF820" box="[817,1030,1981,2006]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="excavatus">
<emphasis id="A1ED0A25FFBDFFF32E42F836FBBBF820" box="[817,1030,1981,2006]" italics="true" pageId="3" pageNumber="46">Aristias excavatus</emphasis>
</taxonomicName>
further differs from
<taxonomicName id="5499ADB4FFBDFFF32987F836FA2BF820" box="[1268,1430,1981,2006]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFBDFFF32987F836FA2BF820" box="[1268,1430,1981,2006]" italics="true" pageId="3" pageNumber="46">A. antarcticus</emphasis>
</taxonomicName>
by the distinct excavation on the anterior margin of the lateral lobes, which is lacking in that species; the length of the uropod 3 inner ramus, which is subequal to the outer ramus in
<taxonomicName id="5499ADB4FFB9FFF7297BFA56FB21FA00" box="[1032,1180,1501,1526]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="excavatus">
<emphasis id="A1ED0A25FFB9FFF7297BFA56FB21FA00" box="[1032,1180,1501,1526]" italics="true" pageId="7" pageNumber="50">A. excavatus</emphasis>
</taxonomicName>
, but distinctly shorter than it in
<taxonomicName id="5499ADB4FFB9FFF72C75F988FE14F9EA" box="[262,425,1539,1564]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB9FFF72C75F988FE14F9EA" box="[262,425,1539,1564]" italics="true" pageId="7" pageNumber="50">A. antarcticus</emphasis>
</taxonomicName>
; and the shape of the telson lobes, which are subtriangular in this species as oppose to subrectangular in
<taxonomicName id="5499ADB4FFB9FFF72C1AF9A3FDB6F9B7" box="[361,523,1576,1601]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB9FFF72C1AF9A3FDB6F9B7" box="[361,523,1576,1601]" italics="true" pageId="7" pageNumber="50">A. antarcticus</emphasis>
</taxonomicName>
.
</paragraph>
<caption id="C7E686BFFFBAFFF42DE4F808FE2BF84D" httpUri="https://zenodo.org/record/294000/files/figure.png" pageId="4" pageNumber="47" targetBox="[177,1402,205,1894]" targetPageId="4">
<paragraph id="9326D637FFBAFFF42DE4F808FE2BF84D" blockId="4.[151,1435,1923,1979]" pageId="4" pageNumber="47">
<emphasis id="A1ED0A25FFBAFFF42DE4F808FEA4F86D" bold="true" box="[151,281,1923,1947]" pageId="4" pageNumber="47">FIGURE 2.</emphasis>
<taxonomicName id="5499ADB4FFBAFFF42C53F80FFE59F86D" box="[288,484,1924,1947]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="4" pageNumber="47" phylum="Arthropoda" rank="species" species="excavatus" status="sp. nov.">
<emphasis id="A1ED0A25FFBAFFF42C53F80FFE59F86D" box="[288,484,1924,1947]" italics="true" pageId="4" pageNumber="47">Aristias excavatus</emphasis>
</taxonomicName>
<emphasis id="A1ED0A25FFBAFFF42C98F808FDFDF86D" bold="true" box="[491,576,1923,1947]" pageId="4" pageNumber="47">
<taxonomicNameLabel id="BADEB75EFFBAFFF42C98F808FDFDF86D" box="[491,576,1923,1947]" pageId="4" pageNumber="47" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, holotype male, 10.25 mm, NIWA 58157. Scale bars: a = 0.2 mm (antenna 2), b = 0.2 mm (mouthparts).
</paragraph>
</caption>
<caption id="C7E686BFFFBBFFF52DE4F80FFE1DF84D" httpUri="https://zenodo.org/record/294001/files/figure.png" pageId="5" pageNumber="48" targetBox="[199,1412,209,1875]" targetPageId="5">
<paragraph id="9326D637FFBBFFF52DE4F80FFE1DF84D" blockId="5.[151,1436,1924,1979]" pageId="5" pageNumber="48">
<emphasis id="A1ED0A25FFBBFFF52DE4F80FFEA4F86A" bold="true" box="[151,281,1924,1948]" pageId="5" pageNumber="48">FIGURE 3.</emphasis>
<taxonomicName id="5499ADB4FFBBFFF52C52F80FFE59F86D" box="[289,484,1924,1947]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="5" pageNumber="48" phylum="Arthropoda" rank="species" species="excavatus" status="sp. nov.">
<emphasis id="A1ED0A25FFBBFFF52C52F80FFE59F86D" box="[289,484,1924,1947]" italics="true" pageId="5" pageNumber="48">Aristias excavatus</emphasis>
</taxonomicName>
<emphasis id="A1ED0A25FFBBFFF52C98F80FFDFCF86A" bold="true" box="[491,577,1924,1948]" pageId="5" pageNumber="48">
<taxonomicNameLabel id="BADEB75EFFBBFFF52C98F80FFDFCF86A" box="[491,577,1924,1948]" pageId="5" pageNumber="48" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, holotype male, 10.25 mm, NIWA 58157. Scale bars: a = 0.4 mm (gnathopods), b = 0.4 mm (pereopods).
</paragraph>
</caption>
<caption id="C7E686BFFFB8FFF62DE4F829FE5AF82F" httpUri="https://zenodo.org/record/294002/files/figure.png" pageId="6" pageNumber="49" targetBox="[179,1410,223,1904]" targetPageId="6">
<paragraph id="9326D637FFB8FFF62DE4F829FE5AF82F" blockId="6.[151,1435,1954,2009]" pageId="6" pageNumber="49">
<emphasis id="A1ED0A25FFB8FFF62DE4F829FEA4F84C" bold="true" box="[151,281,1954,1978]" pageId="6" pageNumber="49">FIGURE 4.</emphasis>
<taxonomicName id="5499ADB4FFB8FFF62C53F829FE5FF84F" box="[288,482,1954,1977]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="6" pageNumber="49" phylum="Arthropoda" rank="species" species="excavatus" status="sp. nov.">
<emphasis id="A1ED0A25FFB8FFF62C53F829FE5FF84F" box="[288,482,1954,1977]" italics="true" pageId="6" pageNumber="49">Aristias excavatus</emphasis>
</taxonomicName>
<emphasis id="A1ED0A25FFB8FFF62C9AF829FD82F84C" bold="true" box="[489,575,1954,1978]" pageId="6" pageNumber="49">
<taxonomicNameLabel id="BADEB75EFFB8FFF62C9AF829FD82F84C" box="[489,575,1954,1978]" pageId="6" pageNumber="49" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, holotype male, 10.25 mm, NIWA 58157. Scale bars: a = 0.4 mm (pereopods), b = 0.2 mm (uropods and telson).
</paragraph>
</caption>
<caption id="C7E686BFFFB9FFF72DE4FF1CFA36FF59" ID-Table-UUID="C7E686BFFFB9FFF72DE4FF1CFA36FF59" box="[151,1419,151,175]" httpUri="http://table.plazi.org/id/C7E686BFFFB9FFF72DE4FF1CFA36FF59" pageId="7" pageNumber="50" targetBox="[151,1426,202,1394]" targetIsTable="true" targetPageId="7">
<paragraph id="9326D637FFB9FFF72DE4FF1CFA36FF59" blockId="7.[151,1419,151,175]" box="[151,1419,151,175]" pageId="7" pageNumber="50">
<emphasis id="A1ED0A25FFB9FFF72DE4FF1CFEB7FF59" bold="true" box="[151,266,151,175]" pageId="7" pageNumber="50">TABLE 1.</emphasis>
Recorded Antarctic material of the genus
<taxonomicName id="5499ADB4FFB9FFF72FBDFF13FC9CFF59" box="[718,801,152,175]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="genus">
<emphasis id="A1ED0A25FFB9FFF72FBDFF13FC9CFF59" box="[718,801,152,175]" italics="true" pageId="7" pageNumber="50">Aristias</emphasis>
</taxonomicName>
, showing differences between diagnostic character states.
</paragraph>
</caption>
<paragraph id="9326D637FFB9FFF72DECFF41FA39FB0A" pageId="7" pageNumber="50">
<table id="E1992497FFB9000F2DE4FF41FA2FFA84" box="[151,1426,202,1394]" gridcols="8" gridrows="9" pageId="7" pageNumber="50">
<tr id="2DA9D475FFB9000F2DE4FF41FA2FFEEC" box="[151,1426,202,282]" gridrow="0" pageId="7" pageNumber="50">
<th id="6E78BD09FFB9000F2DE4FF41FEDFFEEC" box="[151,354,202,282]" gridcol="0" gridrow="0" pageId="7" pageNumber="50">Species</th>
<th id="6E78BD09FFB9000F2C06FF41FDBDFEEC" box="[373,512,202,282]" gridcol="1" gridrow="0" pageId="7" pageNumber="50">Locality</th>
<th id="6E78BD09FFB9000F2F62FF41FDC9FEEC" box="[529,628,202,282]" gridcol="2" gridrow="0" pageId="7" pageNumber="50">Depth (m)</th>
<th id="6E78BD09FFB9000F2FFEFF41FC9DFEEC" box="[653,800,202,282]" gridcol="3" gridrow="0" pageId="7" pageNumber="50">Lateral cephalic lobes, anterior margin</th>
<th id="6E78BD09FFB9000F2E41FF41FC07FEEC" box="[818,954,202,282]" gridcol="4" gridrow="0" pageId="7" pageNumber="50">Upper lip</th>
<th id="6E78BD09FFB9000F2EBEFF41FBEAFEEC" box="[973,1111,202,282]" gridcol="5" gridrow="0" pageId="7" pageNumber="50">Epimeron 3 posterior margin</th>
<th id="6E78BD09FFB9000F2919FF41FB62FEEC" box="[1130,1247,202,282]" gridcol="6" gridrow="0" pageId="7" pageNumber="50">Uropod 3 inner ramus</th>
<th id="6E78BD09FFB9000F298AFF41FA2FFEEC" box="[1273,1426,202,282]" gridcol="7" gridrow="0" pageId="7" pageNumber="50">Telson lobes</th>
</tr>
<tr id="2DA9D475FFB9000F2DE4FEA6FA2FFE6C" box="[151,1426,301,410]" gridrow="1" pageId="7" pageNumber="50">
<th id="6E78BD09FFB9000F2DE4FEA6FEDFFE6C" box="[151,354,301,410]" gridcol="0" gridrow="1" pageId="7" pageNumber="50">
<taxonomicName id="5499ADB4FFB9FFF72DECFEA6FEE7FEA9" authority="Walker, 1906" authorityName="Walker" authorityYear="1906" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB9FFF72DECFEA6FF69FEA9" italics="true" pageId="7" pageNumber="50">Aristias antarcticus sensu</emphasis>
Walker, 1906
</taxonomicName>
</th>
<td id="6E78BD09FFB9000F2C06FEA6FDBDFE6C" box="[373,512,301,410]" gridcol="1" gridrow="1" pageId="7" pageNumber="50">Winter Quarters Bay, McMurdo Sound</td>
<td id="6E78BD09FFB9000F2F62FEA6FDC9FE6C" box="[529,628,301,410]" gridcol="2" gridrow="1" pageId="7" pageNumber="50">36</td>
<td id="6E78BD09FFB9000F2FFEFEA6FC9DFE6C" box="[653,800,301,410]" gridcol="3" gridrow="1" pageId="7" pageNumber="50">Straight</td>
<td id="6E78BD09FFB9000F2E41FEA6FC07FE6C" box="[818,954,301,410]" gridcol="4" gridrow="1" pageId="7" pageNumber="50">Not described/ illustrated</td>
<td id="6E78BD09FFB9000F2EBEFEA6FBEAFE6C" box="[973,1111,301,410]" gridcol="5" gridrow="1" pageId="7" pageNumber="50">Smooth</td>
<td id="6E78BD09FFB9000F2919FEA6FB62FE6C" box="[1130,1247,301,410]" gridcol="6" gridrow="1" pageId="7" pageNumber="50">Shorter than outer ramus</td>
<td id="6E78BD09FFB9000F298AFEA6FA2FFE6C" box="[1273,1426,301,410]" gridcol="7" gridrow="1" pageId="7" pageNumber="50">Sub-rectangular</td>
</tr>
<tr id="2DA9D475FFB9000F2DE4FE26FA2FFDEC" box="[151,1426,429,538]" gridrow="2" pageId="7" pageNumber="50">
<th id="6E78BD09FFB9000F2DE4FE26FEDFFDEC" box="[151,354,429,538]" gridcol="0" gridrow="2" pageId="7" pageNumber="50">
<taxonomicName id="5499ADB4FFB9FFF72DECFE26FF72FE0A" authority="Schellenberg, 1926" authorityName="Schellenberg" authorityYear="1926" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB9FFF72DECFE26FF69FE29" italics="true" pageId="7" pageNumber="50">Aristias antarcticus sensu</emphasis>
Schellenberg, 1926
</taxonomicName>
</th>
<td id="6E78BD09FFB9000F2C06FE26FDBDFDEC" box="[373,512,429,538]" gridcol="1" gridrow="2" pageId="7" pageNumber="50">Observatory Bay, Kerguelen</td>
<td id="6E78BD09FFB9000F2F62FE26FDC9FDEC" box="[529,628,429,538]" gridcol="2" gridrow="2" pageId="7" pageNumber="50">Not given</td>
<td id="6E78BD09FFB9000F2FFEFE26FC9DFDEC" box="[653,800,429,538]" gridcol="3" gridrow="2" pageId="7" pageNumber="50">Excavate</td>
<td id="6E78BD09FFB9000F2E41FE26FC07FDEC" box="[818,954,429,538]" gridcol="4" gridrow="2" pageId="7" pageNumber="50">Separated from the epistome by a notch</td>
<td id="6E78BD09FFB9000F2EBEFE26FBEAFDEC" box="[973,1111,429,538]" gridcol="5" gridrow="2" pageId="7" pageNumber="50">Finely serrated</td>
<td id="6E78BD09FFB9000F2919FE26FB62FDEC" box="[1130,1247,429,538]" gridcol="6" gridrow="2" pageId="7" pageNumber="50">Not described/ illustrated</td>
<td id="6E78BD09FFB9000F298AFE26FA2FFDEC" box="[1273,1426,429,538]" gridcol="7" gridrow="2" pageId="7" pageNumber="50">Sub-triangular</td>
</tr>
<tr id="2DA9D475FFB9000F2DE4FDA6FA2FFD8A" box="[151,1426,557,636]" gridrow="3" pageId="7" pageNumber="50">
<th id="6E78BD09FFB9000F2DE4FDA6FEDFFD8A" box="[151,354,557,636]" gridcol="0" gridrow="3" pageId="7" pageNumber="50">
<taxonomicName id="5499ADB4FFB9FFF72DECFDA6FF72FD8A" authority="K.H. Barnard, 1930" authorityName="K.H. Barnard" authorityYear="1930" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB9FFF72DECFDA6FF69FDA9" italics="true" pageId="7" pageNumber="50">Aristias antarcticus sensu</emphasis>
K.H. Barnard, 1930
</taxonomicName>
</th>
<td id="6E78BD09FFB9000F2C06FDA6FDBDFD8A" box="[373,512,557,636]" gridcol="1" gridrow="3" pageId="7" pageNumber="50">McMurdo Sound &amp; off Cape Adare</td>
<td id="6E78BD09FFB9000F2F62FDA6FDC9FD8A" box="[529,628,557,636]" gridcol="2" gridrow="3" pageId="7" pageNumber="50">82–457</td>
<td id="6E78BD09FFB9000F2FFEFDA6FC9DFD8A" box="[653,800,557,636]" gridcol="3" gridrow="3" pageId="7" pageNumber="50">Not described/ illustrated</td>
<td id="6E78BD09FFB9000F2E41FDA6FC07FD8A" box="[818,954,557,636]" gridcol="4" gridrow="3" pageId="7" pageNumber="50">Not described/ illustrated</td>
<td id="6E78BD09FFB9000F2EBEFDA6FBEAFD8A" box="[973,1111,557,636]" gridcol="5" gridrow="3" pageId="7" pageNumber="50">Smooth</td>
<td id="6E78BD09FFB9000F2919FDA6FB62FD8A" box="[1130,1247,557,636]" gridcol="6" gridrow="3" pageId="7" pageNumber="50">Not described/ illustrated</td>
<td id="6E78BD09FFB9000F298AFDA6FA2FFD8A" box="[1273,1426,557,636]" gridcol="7" gridrow="3" pageId="7" pageNumber="50">Sub-rectangular</td>
</tr>
<tr id="2DA9D475FFB9000F2DE4FD04FA2FFCEC" box="[151,1426,655,794]" gridrow="4" pageId="7" pageNumber="50">
<th id="6E78BD09FFB9000F2DE4FD04FEDFFCEC" box="[151,354,655,794]" gridcol="0" gridrow="4" pageId="7" pageNumber="50">
<taxonomicName id="5499ADB4FFB9FFF72DECFD1BFF72FD29" authority="K.H. Barnard, 1932" authorityName="K.H. Barnard" authorityYear="1932" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB9FFF72DECFD1BFF69FD34" italics="true" pageId="7" pageNumber="50">Aristias antarcticus sensu</emphasis>
K.H. Barnard, 1932
</taxonomicName>
</th>
<td id="6E78BD09FFB9000F2C06FD04FDBDFCEC" box="[373,512,655,794]" gridcol="1" gridrow="4" pageId="7" pageNumber="50">South Shetlands &amp; South Georgia</td>
<td id="6E78BD09FFB9000F2F62FD04FDC9FCEC" box="[529,628,655,794]" gridcol="2" gridrow="4" pageId="7" pageNumber="50">60–342</td>
<td id="6E78BD09FFB9000F2FFEFD04FC9DFCEC" box="[653,800,655,794]" gridcol="3" gridrow="4" pageId="7" pageNumber="50">Excavate (in some specimens according to the author)</td>
<td id="6E78BD09FFB9000F2E41FD04FC07FCEC" box="[818,954,655,794]" gridcol="4" gridrow="4" pageId="7" pageNumber="50">Projecting in front of epistome, separated by a slit</td>
<td id="6E78BD09FFB9000F2EBEFD04FBEAFCEC" box="[973,1111,655,794]" gridcol="5" gridrow="4" pageId="7" pageNumber="50">Not described/ illustrated</td>
<td id="6E78BD09FFB9000F2919FD04FB62FCEC" box="[1130,1247,655,794]" gridcol="6" gridrow="4" pageId="7" pageNumber="50">Not described/ illustrated</td>
<td id="6E78BD09FFB9000F298AFD04FA2FFCEC" box="[1273,1426,655,794]" gridcol="7" gridrow="4" pageId="7" pageNumber="50">Sub-triangular</td>
</tr>
<tr id="2DA9D475FFB9000F2DE4FCA6FA2FFC41" box="[151,1426,813,951]" gridrow="5" pageId="7" pageNumber="50">
<th id="6E78BD09FFB9000F2DE4FCA6FEDFFC41" box="[151,354,813,951]" gridcol="0" gridrow="5" pageId="7" pageNumber="50">
<taxonomicName id="5499ADB4FFB9FFF72DECFCA6FF72FC8A" authority="sensu Nicholls, 1938" authorityName="Nicholls" authorityYear="1938" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB9FFF72DECFCA6FF69FCA9" italics="true" pageId="7" pageNumber="50">Aristias antarcticus sensu</emphasis>
Nicholls, 1938
</taxonomicName>
</th>
<td id="6E78BD09FFB9000F2C06FCA6FDBDFC41" box="[373,512,813,951]" gridcol="1" gridrow="5" pageId="7" pageNumber="50">Common- wealth Bay &amp; Davis Sea</td>
<td id="6E78BD09FFB9000F2F62FCA6FDC9FC41" box="[529,628,813,951]" gridcol="2" gridrow="5" pageId="7" pageNumber="50">45–439</td>
<td id="6E78BD09FFB9000F2FFEFCA6FC9DFC41" box="[653,800,813,951]" gridcol="3" gridrow="5" pageId="7" pageNumber="50">Appears to be straight, but not figured in entirety</td>
<td id="6E78BD09FFB9000F2E41FCA6FC07FC41" box="[818,954,813,951]" gridcol="4" gridrow="5" pageId="7" pageNumber="50">Not projecting in front of epistome, separated by a notch</td>
<td id="6E78BD09FFB9000F2EBEFCA6FBEAFC41" box="[973,1111,813,951]" gridcol="5" gridrow="5" pageId="7" pageNumber="50">Smooth</td>
<td id="6E78BD09FFB9000F2919FCA6FB62FC41" box="[1130,1247,813,951]" gridcol="6" gridrow="5" pageId="7" pageNumber="50">Shorter than outer ramus</td>
<td id="6E78BD09FFB9000F298AFCA6FA2FFC41" box="[1273,1426,813,951]" gridcol="7" gridrow="5" pageId="7" pageNumber="50">Sub-triangular</td>
</tr>
<tr id="2DA9D475FFB9000F2DE4FC41FA2FFBEC" box="[151,1426,970,1050]" gridrow="6" pageId="7" pageNumber="50">
<th id="6E78BD09FFB9000F2DE4FC41FEDFFBEC" box="[151,354,970,1050]" gridcol="0" gridrow="6" pageId="7" pageNumber="50">
<taxonomicName id="5499ADB4FFB9FFF72DECFC41FEFFFBEC" authority="sensu Bellan-Santini &amp; Ledoyer, 1974" authorityName="Bellan-Santini &amp; Ledoyer" authorityYear="1974" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB9FFF72DECFC41FF69FC0B" italics="true" pageId="7" pageNumber="50">Aristias antarcticus sensu</emphasis>
Bellan-Santini &amp; Ledoyer, 1974
</taxonomicName>
</th>
<td id="6E78BD09FFB9000F2C06FC41FDBDFBEC" box="[373,512,970,1050]" gridcol="1" gridrow="6" pageId="7" pageNumber="50">Kerguelen</td>
<td id="6E78BD09FFB9000F2F62FC41FDC9FBEC" box="[529,628,970,1050]" gridcol="2" gridrow="6" pageId="7" pageNumber="50">24</td>
<td id="6E78BD09FFB9000F2FFEFC41FC9DFBEC" box="[653,800,970,1050]" gridcol="3" gridrow="6" pageId="7" pageNumber="50">?Excavate</td>
<td id="6E78BD09FFB9000F2E41FC41FC07FBEC" box="[818,954,970,1050]" gridcol="4" gridrow="6" pageId="7" pageNumber="50">Not described/ illustrated</td>
<td id="6E78BD09FFB9000F2EBEFC41FBEAFBEC" box="[973,1111,970,1050]" gridcol="5" gridrow="6" pageId="7" pageNumber="50">Smooth</td>
<td id="6E78BD09FFB9000F2919FC41FB62FBEC" box="[1130,1247,970,1050]" gridcol="6" gridrow="6" pageId="7" pageNumber="50">Shorter than outer ramus</td>
<td id="6E78BD09FFB9000F298AFC41FA2FFBEC" box="[1273,1426,970,1050]" gridcol="7" gridrow="6" pageId="7" pageNumber="50">Sub-triangular</td>
</tr>
<tr id="2DA9D475FFB9000F2DE4FBA6FA2FFB22" box="[151,1426,1069,1236]" gridrow="7" pageId="7" pageNumber="50">
<th id="6E78BD09FFB9000F2DE4FBA6FEDFFB22" box="[151,354,1069,1236]" gridcol="0" gridrow="7" pageId="7" pageNumber="50">
<taxonomicName id="5499ADB4FFB9FFF72DECFBA6FEE0FBA9" authority="K.H. Barnard, 1932" authorityName="K. H. Barnard" authorityYear="1932" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="collinus">
<emphasis id="A1ED0A25FFB9FFF72DECFBA6FE81FBB4" box="[159,316,1069,1090]" italics="true" pageId="7" pageNumber="50">Aristias collinus</emphasis>
K.H. Barnard, 1932
</taxonomicName>
</th>
<td id="6E78BD09FFB9000F2C06FBA6FDBDFB22" box="[373,512,1069,1236]" gridcol="1" gridrow="7" pageId="7" pageNumber="50">South Shetlands</td>
<td id="6E78BD09FFB9000F2F62FBA6FDC9FB22" box="[529,628,1069,1236]" gridcol="2" gridrow="7" pageId="7" pageNumber="50">200–342</td>
<td id="6E78BD09FFB9000F2FFEFBA6FC9DFB22" box="[653,800,1069,1236]" gridcol="3" gridrow="7" pageId="7" pageNumber="50">Not described/ illustrated</td>
<td id="6E78BD09FFB9000F2E41FBA6FC07FB22" box="[818,954,1069,1236]" gridcol="4" gridrow="7" pageId="7" pageNumber="50">Rounded, not projecting in front of epistome, separated by a slit</td>
<td id="6E78BD09FFB9000F2EBEFBA6FBEAFB22" box="[973,1111,1069,1236]" gridcol="5" gridrow="7" pageId="7" pageNumber="50">Smooth</td>
<td id="6E78BD09FFB9000F2919FBA6FB62FB22" box="[1130,1247,1069,1236]" gridcol="6" gridrow="7" pageId="7" pageNumber="50">Not described/ illustrated</td>
<td id="6E78BD09FFB9000F298AFBA6FA2FFB22" box="[1273,1426,1069,1236]" gridcol="7" gridrow="7" pageId="7" pageNumber="50">“Angularly bevelled off distally”</td>
</tr>
<tr id="2DA9D475FFB9000F2DE4FB6CFA2FFA84" box="[151,1426,1255,1394]" gridrow="8" pageId="7" pageNumber="50">
<th id="6E78BD09FFB9000F2DE4FB6CFEDFFA84" box="[151,354,1255,1394]" gridcol="0" gridrow="8" pageId="7" pageNumber="50">
<taxonomicName id="5499ADB4FFB9FFF72DECFB63FEF0FB0B" box="[159,333,1256,1277]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="excavatus" status="sp. nov.">
<emphasis id="A1ED0A25FFB9FFF72DECFB63FEF0FB0B" box="[159,333,1256,1277]" italics="true" pageId="7" pageNumber="50">Aristias excavatus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="BADEB75EFFB9FFF72DECFA8EFF57FAEC" box="[159,234,1285,1306]" pageId="7" pageNumber="50" rank="species">sp. nov.</taxonomicNameLabel>
</th>
<td id="6E78BD09FFB9000F2C06FB6CFDBDFA84" box="[373,512,1255,1394]" gridcol="1" gridrow="8" pageId="7" pageNumber="50">Ross Sea</td>
<td id="6E78BD09FFB9000F2F62FB6CFDC9FA84" box="[529,628,1255,1394]" gridcol="2" gridrow="8" pageId="7" pageNumber="50">724–752</td>
<td id="6E78BD09FFB9000F2FFEFB6CFC9DFA84" box="[653,800,1255,1394]" gridcol="3" gridrow="8" pageId="7" pageNumber="50">Excavate</td>
<td id="6E78BD09FFB9000F2E41FB6CFC07FA84" box="[818,954,1255,1394]" gridcol="4" gridrow="8" pageId="7" pageNumber="50">Projecting in front of epistome, separated by a slit</td>
<td id="6E78BD09FFB9000F2EBEFB6CFBEAFA84" box="[973,1111,1255,1394]" gridcol="5" gridrow="8" pageId="7" pageNumber="50">Smooth</td>
<td id="6E78BD09FFB9000F2919FB6CFB62FA84" box="[1130,1247,1255,1394]" gridcol="6" gridrow="8" pageId="7" pageNumber="50">Subequal to outer ramus</td>
<td id="6E78BD09FFB9000F298AFB6CFA2FFA84" box="[1273,1426,1255,1394]" gridcol="7" gridrow="8" pageId="7" pageNumber="50">Sub-triangular</td>
</tr>
</table>
</paragraph>
<paragraph id="9326D637FFB9FFF82DB5F9C6FBDCFCF1" blockId="7.[151,1437,1464,2012]" lastBlockId="8.[151,1437,152,887]" lastPageId="8" lastPageNumber="51" pageId="7" pageNumber="50">
<emphasis id="A1ED0A25FFB9FFF72DB5F9C6FCB4F991" bold="true" box="[198,777,1613,1639]" pageId="7" pageNumber="50">
Systematics of the Antarctic species of
<taxonomicName id="5499ADB4FFB9FFF72FD6F9C6FCBFF991" box="[677,770,1613,1639]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="genus">
<emphasis id="A1ED0A25FFB9FFF72FD6F9C6FCBFF991" bold="true" box="[677,770,1613,1639]" italics="true" pageId="7" pageNumber="50">Aristias</emphasis>
</taxonomicName>
.
</emphasis>
The systematics of the Antarctic species of
<taxonomicName id="5499ADB4FFB9FFF7287AF9C6FAD9F990" box="[1289,1380,1613,1638]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="genus">
<emphasis id="A1ED0A25FFB9FFF7287AF9C6FAD9F990" box="[1289,1380,1613,1638]" italics="true" pageId="7" pageNumber="50">Aristias</emphasis>
</taxonomicName>
is in disarray, with much of the material described by different authors being attributed to
<taxonomicName id="5499ADB4FFB9FFF729EBF9F8FA82F97A" box="[1176,1343,1651,1676]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB9FFF729EBF9F8FA82F97A" box="[1176,1343,1651,1676]" italics="true" pageId="7" pageNumber="50">A. antarcticus</emphasis>
</taxonomicName>
despite distinct morphological differences between material from different localities (
<tableCitation id="DE1BE38CFFB9FFF7294EF913FB34F944" box="[1085,1161,1688,1714]" captionStart="TABLE 1" captionStartId="7.[151,239,151,175]" captionTargetBox="[151,1426,202,1394]" captionTargetPageId="7" captionText="TABLE 1. Recorded Antarctic material of the genus Aristias, showing differences between diagnostic character states." httpUri="http://table.plazi.org/id/C7E686BFFFB9FFF72DE4FF1CFA36FF59" pageId="7" pageNumber="50" tableUuid="C7E686BFFFB9FFF72DE4FF1CFA36FF59">Tab. 1</tableCitation>
). Walker (1906, 1907) recorded and illustrated
<taxonomicName id="5499ADB4FFB9FFF72CB7F936FD08F920" box="[452,693,1725,1750]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB9FFF72CB7F936FD08F920" box="[452,693,1725,1750]" italics="true" pageId="7" pageNumber="50">Aristias antarcticus</emphasis>
</taxonomicName>
from
<quantity id="54617BD2FFB9FFF72E71F936FCFDF921" box="[770,832,1725,1751]" metricMagnitude="1" metricUnit="m" metricValue="3.7" pageId="7" pageNumber="50" unit="m" value="37.0">37 m</quantity>
depth at Winter Quarters Bay, McMurdo Sound. Unfortunately his description did not indicate the shape of the epistome and upper lip complex, which is an important character in distinguishing between the species of this genus. Schellenberg (1926) described material of what he attributed to
<taxonomicName id="5499ADB4FFB9FFF72F6FF8A6FD7DF8B0" box="[540,704,1837,1862]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB9FFF72F6FF8A6FD7DF8B0" box="[540,704,1837,1862]" italics="true" pageId="7" pageNumber="50">A. antarcticus</emphasis>
</taxonomicName>
from south
<collectingRegion id="515D18D5FFB9FFF72E23F8A6FC13F8B1" box="[848,942,1837,1863]" country="Australia" name="Victoria" pageId="7" pageNumber="50">Victoria</collectingRegion>
Land, but his figures differ from those of Walker (1907) in having an excavate lateral cephalic lobe (much like
<taxonomicName id="5499ADB4FFB9FFF7297CF8D8FB12F89A" box="[1039,1199,1875,1900]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="excavatus" status="sp. nov.">
<emphasis id="A1ED0A25FFB9FFF7297CF8D8FB12F89A" box="[1039,1199,1875,1900]" italics="true" pageId="7" pageNumber="50">A. excavatus</emphasis>
</taxonomicName>
<emphasis id="A1ED0A25FFB9FFF729CBF8D9FAA3F89A" bold="true" box="[1208,1310,1874,1900]" pageId="7" pageNumber="50">
<taxonomicNameLabel id="BADEB75EFFB9FFF729CBF8D9FAA3F89A" box="[1208,1310,1874,1900]" pageId="7" pageNumber="50" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, although Schellenberg’s specimen is figured with well developed eyes), and telson lobes that are narrowing distally, unlike the uniformly subrectangular lobes of Walker’s specimen. Schellenberg states that the epistome of his material is straight and separated from the upper lip by a pit (“Das Epistom ist gerade und durch eine Grube von der Oberlippe getrennt”), and the hind margins of epimera 2 and 3 are straight and finely serrated (“Der Hinterrand des II und III Epimers is gerade und fein gesägt”). K.H. Barnard (1932) recorded
<taxonomicName id="5499ADB4FFB6FFF82849FF36FEA7FF0D" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB6FFF82849FF36FEA7FF0D" italics="true" pageId="8" pageNumber="51">Aristias antarcticus</emphasis>
</taxonomicName>
from
<collectingCountry id="EB8E96A7FFB6FFF82C10FF69FDB3FF0A" box="[355,526,226,252]" name="South Georgia and the South Sandwich Islands" pageId="8" pageNumber="51">
South
<collectingRegion id="515D18D5FFB6FFF82CC3FF69FDB3FF0A" box="[432,526,226,252]" country="United States of America" name="Georgia" pageId="8" pageNumber="51">Georgia</collectingRegion>
</collectingCountry>
and the South Shetlands, attributing his material to that species based on the shape of urosomite 1 and the width of the carpus of pereopods 5–7. He illustrated the upper lip of his specimens as being angularly produced in front of the epistome. In the same publication, Barnard also described a new species,
<emphasis id="A1ED0A25FFB6FFF82CA0FED9FD1AFE9D" box="[467,679,338,363]" italics="true" pageId="8" pageNumber="51">
<taxonomicName id="5499ADB4FFB6FFF82CA0FED9FD1FFE9D" box="[467,674,338,363]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="collinus">Aristias collinus</taxonomicName>
,
</emphasis>
which he stated differed from
<taxonomicName id="5499ADB4FFB6FFF8295AFED9FB6AFE9D" box="[1065,1239,338,363]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB6FFF8295AFED9FB6AFE9D" box="[1065,1239,338,363]" italics="true" pageId="8" pageNumber="51">A. antarcticus</emphasis>
</taxonomicName>
in the rounded, unproduced upper lip, and the shape of urosomite 1, which was much more deeply depressed than that Walker’s species. He also described the telson as having the lobes “angularly bevelled off distally” (Barnard 1932: 44) as in Schellenberg’s (1926) figure of
<taxonomicName id="5499ADB4FFB6FFF82FB0FE49FCD8FE2D" box="[707,869,450,475]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB6FFF82FB0FE49FCD8FE2D" box="[707,869,450,475]" italics="true" pageId="8" pageNumber="51">A. antarcticus</emphasis>
</taxonomicName>
. Nicholls (1938) also recorded six specimens of
<taxonomicName id="5499ADB4FFB6FFF82DE4FE63FE81FDF7" box="[151,316,488,513]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB6FFF82DE4FE63FE81FDF7" box="[151,316,488,513]" italics="true" pageId="8" pageNumber="51">A. antarcticus</emphasis>
</taxonomicName>
from Commonwealth Bay and the Davis Sea, but, figures 6b and 6d of his illustrations of the urosome appear to be quite distinct from each other and probably represent two different species (the urosome depicted in Nicholls’ fig. 6c is probably the same state as depicted in his fig. 6b, telescoped under the pleon). In Nicholls’ (1938) figures, the epistome is separated from the upper lip by a distinct notch. Finally, Bellan- Santini &amp; Ledoyer (1974) recorded four specimens of
<taxonomicName id="5499ADB4FFB6FFF82E55FDF6FC70FD60" box="[806,973,637,662]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB6FFF82E55FDF6FC70FD60" box="[806,973,637,662]" italics="true" pageId="8" pageNumber="51">A. antarcticus</emphasis>
</taxonomicName>
from Île
<collectingCountry id="EB8E96A7FFB6FFF8294CFDF6FB0DFD61" box="[1087,1200,637,663]" name="Australia" pageId="8" pageNumber="51">Australia</collectingCountry>
, Kerguelen Islands. From the illustrations, it appears that this material is very similar to
<taxonomicName id="5499ADB4FFB6FFF82EA0FD29FA9AFD4A" authority="Walker" authorityName="Walker" box="[979,1319,674,700]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB6FFF82EA0FD29FB7AFD4D" box="[979,1223,674,699]" italics="true" pageId="8" pageNumber="51">A. antarcticus sensu</emphasis>
Walker
</taxonomicName>
, differing only in the shape of the telson and perhaps pereopod 7, which seems to be more slender. However, these differences are negligible at best so it is possible that this represents a valid record.
</paragraph>
<paragraph id="9326D637FFB6FFF82DB5FC99FB93FC81" blockId="8.[151,1437,152,887]" pageId="8" pageNumber="51">
When all of these subtle morphological differences are taken into account, it seems as though at least two of these records, those described by Schellenberg (1926) and Nicholls (1938) (in part), probably represent new species. Thus, all previous records of
<taxonomicName id="5499ADB4FFB6FFF82FF9FCD6FC90FC80" box="[650,813,861,886]" class="Malacostraca" family="Aristiidae" genus="Aristias" kingdom="Animalia" order="Amphipoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="antarcticus">
<emphasis id="A1ED0A25FFB6FFF82FF9FCD6FC90FC80" box="[650,813,861,886]" italics="true" pageId="8" pageNumber="51">A. antarcticus</emphasis>
</taxonomicName>
require confirmation.
</paragraph>
</subSubSection>
</treatment>
</document>
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