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<document id="9CDD10FF034B643802344E5B4DD3B60A" ID-ISSN="1464-5262" IM.materialsCitations_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629938576456" checkinUser="felipe" docAuthor="Hendrycks, EA &amp; Conlan, KE" docDate="2003" docId="200387B4FFF2FF910FA15D9B4502BD63" docLanguage="en" docName="JNatHist.37.19.2303-2368.pdf" docOrigin="Journal of Natural History 37" docStyle="DocumentStyle:443144A73DAE3E092C51A378E4CD0138.2:JNatHist.2003-2004.journal_article.1cover" docStyleId="443144A73DAE3E092C51A378E4CD0138" docStyleName="JNatHist.2003-2004.journal_article.1cover" docStyleVersion="2" docTitle="Triquetramana Hendrycks &amp; Conlan 2003, gen. nov." docType="treatment" docVersion="3" lastPageNumber="2353" masterDocId="DC3AFFCCFFC0FFA20D2A58354169BE28" masterDocTitle="New and unusual abyssal gammaridean Amphipoda from the north-east Pacific" masterLastPageNumber="2368" masterPageNumber="2303" pageNumber="2352" updateTime="1699129476424" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="376A8E4D07B71DD7426FC42C1CCE1C38">New and unusual abyssal gammaridean Amphipoda from the north-east Pacific</mods:title>
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<mods:namePart id="0982833206C08EEC02936CF928D9FF3B">Hendrycks, EA</mods:namePart>
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<mods:namePart id="E448B92025A305A152C439DE5FCE4020">Conlan, KE</mods:namePart>
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<mods:typeOfResource id="E090963887B3D642408E515AD4CEEA3A">text</mods:typeOfResource>
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<mods:title id="9E6D4CE32FCF41A8597B69A60255B82B">Journal of Natural History</mods:title>
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<mods:part id="B9380D1D2C745E55697A3A811ED96554">
<mods:date id="57CFA98FA5640B662BABCBFE755686AA">2003</mods:date>
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<mods:number id="92AF6815358EBE71AE401DCDECC88CA7">37</mods:number>
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<treatment id="200387B4FFF2FF910FA15D9B4502BD63" ID-DOI="http://doi.org/10.5281/zenodo.5262985" ID-Zenodo-Dep="5262985" LSID="urn:lsid:plazi:treatment:200387B4FFF2FF910FA15D9B4502BD63" httpUri="http://treatment.plazi.org/id/200387B4FFF2FF910FA15D9B4502BD63" lastPageId="51" lastPageNumber="2353" pageId="50" pageNumber="2352">
<subSubSection id="E0B06529FFF2FF900FA15D9B42CBBBEE" box="[651,930,1454,1479]" pageId="50" pageNumber="2352" type="nomenclature">
<paragraph id="A81536A2FFF2FF900FA15D9B42CBBBEE" blockId="50.[651,930,1454,1479]" box="[651,930,1454,1479]" pageId="50" pageNumber="2352">
<heading id="F35D81CEFFF2FF900FA15D9B42CBBBEE" box="[651,930,1454,1479]" centered="true" fontSize="10" level="2" pageId="50" pageNumber="2352" reason="3">
<taxonomicName id="6FAA4D21FFF2FF900FA15D9B4246BBEE" ID-CoL="7Q598" authority="Hendrycks &amp; Conlan, 2003" authorityName="Hendrycks &amp; Conlan" authorityYear="2003" box="[651,815,1454,1478]" class="Malacostraca" family="Eusiridae" genus="Triquetramana" kingdom="Animalia" order="Amphipoda" pageId="50" pageNumber="2352" phylum="Arthropoda" rank="genus" status="gen. nov.">
<emphasis id="9ADEEAB0FFF2FF900FA15D9B4246BBEE" bold="true" box="[651,815,1454,1478]" italics="true" pageId="50" pageNumber="2352">Triquetramana</emphasis>
</taxonomicName>
<taxonomicNameLabel id="81ED57CBFFF2FF900E125D9A42CBBBEE" box="[824,930,1455,1479]" pageId="50" pageNumber="2352" rank="genus">gen. nov.</taxonomicNameLabel>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="E0B06529FFF2FF910C135DC44502BD63" lastPageId="51" lastPageNumber="2353" pageId="50" pageNumber="2352" type="diagnosis">
<paragraph id="A81536A2FFF2FF900C135DC440CCB820" blockId="50.[313,1268,1521,1736]" box="[313,421,1521,1544]" pageId="50" pageNumber="2352">
<emphasis id="9ADEEAB0FFF2FF900C135DC440CCB820" box="[313,421,1521,1544]" italics="true" pageId="50" pageNumber="2352">Diagnosis</emphasis>
</paragraph>
<paragraph id="A81536A2FFF2FF910C4B5E24435BBF25" blockId="50.[313,1268,1521,1736]" lastBlockId="51.[313,1268,180,269]" lastPageId="51" lastPageNumber="2353" pageId="50" pageNumber="2352">Eye absent; rostrum short, rounded; antenna 1 slightly shorter than antenna 2, accessory flagellum one-articulate; mandibular palp feeble, shorter than mandible body, article 3 length 0.5×article 2; maxilla 2, inner plate wide, almost twice the width of outer plate; maxilliped palp, medial margin of dactylus spinose; coxa 1, not produced anteriorly; coxa 3 larger than 4, with a bluntly rounded, posteroventral lobe, posterior margin excavate; gnathopods 12, propodus triangular, equal in size, carpus elongated and non-lobate; peraeopods 56, basis expanded, rounded, subequal, merus expanded proximally; uropods spinose, rami broadened; telson elongate, cleft deeply.</paragraph>
<paragraph id="A81536A2FFF3FF910C13590042E5BF45" blockId="51.[313,908,309,365]" pageId="51" pageNumber="2353">
<emphasis id="9ADEEAB0FFF3FF910C1359004316BF44" italics="true" pageId="51" pageNumber="2353">
<typeStatus id="77118800FFF3FF910C1359004018BF64" box="[313,369,309,332]" pageId="51" pageNumber="2353">Type</typeStatus>
species
<taxonomicName id="6FAA4D21FFF3FF910C4B59604316BF44" authority="Hendrycks &amp; Conlan, 2003" authorityName="Hendrycks &amp; Conlan" authorityYear="2003" box="[353,639,340,364]" class="Malacostraca" family="Eusiridae" genus="Triquetramana" kingdom="Animalia" order="Amphipoda" pageId="51" pageNumber="2353" phylum="Arthropoda" rank="species" species="brevipalpa" status="sp. nov.">Triquetramana brevipalpa</taxonomicName>
</emphasis>
<taxonomicNameLabel id="81ED57CBFFF3FF910FA25960438ABF44" box="[648,739,341,364]" pageId="51" pageNumber="2353" rank="species">sp. nov.</taxonomicNameLabel>
by monotypy.
</paragraph>
<paragraph id="A81536A2FFF3FF910C1359A140D8BF84" blockId="51.[313,1268,404,492]" box="[313,433,404,428]" pageId="51" pageNumber="2353">
<emphasis id="9ADEEAB0FFF3FF910C1359A140D8BF84" box="[313,433,404,428]" italics="true" pageId="51" pageNumber="2353">Etymology</emphasis>
</paragraph>
<paragraph id="A81536A2FFF3FF910C4B5981459DBFC4" blockId="51.[313,1268,404,492]" pageId="51" pageNumber="2353">
The genus name is from the Latin
<emphasis id="9ADEEAB0FFF3FF910E2F59804219BFE4" box="[773,880,437,460]" italics="true" pageId="51" pageNumber="2353">triquetrus</emphasis>
(three cornered, triangular) plus
<emphasis id="9ADEEAB0FFF3FF910C1359E04016BFC4" box="[313,383,469,492]" italics="true" pageId="51" pageNumber="2353">manus</emphasis>
(hand), referring to the peculiar shape of the propodus of gnathopods 1 and 2.
</paragraph>
<paragraph id="A81536A2FFF3FF910C135A2140F5BC04" blockId="51.[313,1269,532,843]" box="[313,412,532,556]" pageId="51" pageNumber="2353">
<emphasis id="9ADEEAB0FFF3FF910C135A2140F5BC04" box="[313,412,532,556]" italics="true" pageId="51" pageNumber="2353">Remarks</emphasis>
</paragraph>
<paragraph id="A81536A2FFF3FF910C4B5A0145F0BCE3" blockId="51.[313,1269,532,843]" pageId="51" pageNumber="2353">
Within the genera of
<taxonomicName id="6FAA4D21FFF3FF910F795A0143D7BC64" authorityName="Stebbing" authorityYear="1888" box="[595,702,564,588]" class="Malacostraca" family="Eusiridae" kingdom="Animalia" order="Amphipoda" pageId="51" pageNumber="2353" phylum="Arthropoda" rank="family">Eusiridae</taxonomicName>
that have eusirid-like gnathopods,
<taxonomicName id="6FAA4D21FFF3FF91097A5A01459DBC63" authorityName="Hendrycks &amp; Conlan" authorityYear="2003" box="[1104,1268,564,587]" class="Malacostraca" family="Eusiridae" genus="Triquetramana" kingdom="Animalia" order="Amphipoda" pageId="51" pageNumber="2353" phylum="Arthropoda" rank="genus">
<emphasis id="9ADEEAB0FFF3FF91097A5A01459DBC63" box="[1104,1268,564,587]" italics="true" pageId="51" pageNumber="2353">Triquetramana</emphasis>
</taxonomicName>
is unique in the following combination of characters: equal sized, triangular gnathopods, with the carpus of gnathopods 1 and 2 lacking a ventral lobe; the very short, mandibular palp and the proximally expanded merus of peraeopods 5 and 6. It can be differentiated easily from other similar, eusirid genera as seen in
<tableCitation id="E5280319FFF3FF91096C5A8645FDBCE3" box="[1094,1172,691,715]" captionStart="Table 3" captionStartId="52.[722,778,594,617]" captionText="Table 3. Characters distinguishing Triquetramana gen. nov., Eusirus," pageId="51" pageNumber="2353">table 3</tableCitation>
.
</paragraph>
<paragraph id="A81536A2FFF3FF910C4B5AE64502BD63" blockId="51.[313,1269,532,843]" pageId="51" pageNumber="2353">
Additionally, it differs from
<taxonomicName id="6FAA4D21FFF3FF910F875AE14277BCC3" authorityName="Stebbing" authorityYear="1897" box="[685,798,724,747]" class="Malacostraca" family="Eusiridae" genus="Eusiropsis" kingdom="Animalia" order="Amphipoda" pageId="51" pageNumber="2353" phylum="Arthropoda" rank="genus">
<emphasis id="9ADEEAB0FFF3FF910F875AE14277BCC3" box="[685,798,724,747]" italics="true" pageId="51" pageNumber="2353">Eusiropsis</emphasis>
</taxonomicName>
in the smooth, posterior margins of the basis of peraeopods 57 (vs serrate) and in the non-calceolate antennae (vs calceolate). Furthermore, from
<taxonomicName id="6FAA4D21FFF3FF910F4B5B21426EBD03" authorityName="Birstein &amp; M. Vinogradov" authorityYear="1955" box="[609,775,788,811]" class="Malacostraca" family="Eusiridae" genus="Pareusirogenes" kingdom="Animalia" order="Amphipoda" pageId="51" pageNumber="2353" phylum="Arthropoda" rank="genus">
<emphasis id="9ADEEAB0FFF3FF910F4B5B21426EBD03" box="[609,775,788,811]" italics="true" pageId="51" pageNumber="2353">Pareusirogenes</emphasis>
</taxonomicName>
it differs in the inner plate of maxilla 1, which has only one small, subapical setule (vs three long, apical setae).
</paragraph>
</subSubSection>
</treatment>
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