<document id="E3FAB5295078DFAF843429947DC5ADAE" ID-DOI="10.5852/ejt.2024.923.2445" ID-ISSN="2118-9773" ID-Zenodo-Dep="10727741" ID-ZooBank="AD68CEDD-2F2D-4010-BE7A-1B1AE9E4A0F3" IM.bibliography_approvedBy="tatiana" IM.illustrations_approvedBy="tatiana" IM.materialsCitations_approvedBy="tatiana" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="tatiana" IM.taxonomicNames_approvedBy="tatiana" IM.treatmentCitations_approvedBy="tatiana" IM.treatments_approvedBy="tatiana" checkinTime="1709215085450" checkinUser="plazi" docAuthor="Herbert, David G." docDate="2024" docId="E54587AB381E0B5CFDC6FD09531CFB8D" docLanguage="en" docName="EJT.2024.923.1-119.pdf.imf" docOrigin="European Journal of Taxonomy 923" docSource="https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2445/10835" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Trenchia Knudsen 1964" docType="treatment" docVersion="5" lastPageNumber="65" masterDocId="197CFFD3385E0B1CFF9BFFC25776FFD3" masterDocTitle="The Vetigastropoda (Mollusca) of Walters Shoal, with descriptions of two new genera and thirty new species" masterLastPageNumber="119" masterPageNumber="1" pageNumber="65" updateTime="1710426596983" updateUser="tatiana" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="6067DE84A6345E30C702AFD43F79C0C4">The Vetigastropoda (Mollusca) of Walters Shoal, with descriptions of two new genera and thirty new species</mods:title>
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<mods:namePart id="74D775F5EE64284545A51BF9170D1CD0">Herbert, David G.</mods:namePart>
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<paragraph id="6D5336BD381E0B5CFDC6FD0954A1FD36" blockId="64.[605,983,715,742]" box="[605,983,715,742]" pageId="64" pageNumber="65">
<heading id="361B81D1381E0B5CFDC6FD0954A1FD36" box="[605,983,715,742]" centered="true" fontSize="11" level="2" pageId="64" pageNumber="65" reason="2">
Genus 
<taxonomicName id="AAEC4D3E381E0B5CFD2BFD0954A1FD36" ID-CoL="7PJT2" authority="Knudsen, 1964" authorityName="Knudsen" authorityYear="1964" box="[688,983,715,742]" class="Gastropoda" family="Unassigned" genus="Trenchia" kingdom="Animalia" order="Seguenziida" pageId="64" pageNumber="65" phylum="Mollusca" rank="genus" superFamily="Seguenzioidea">
<emphasis id="5F98EAAF381E0B5CFD2BFD095468FD35" bold="true" box="[688,798,715,742]" italics="true" pageId="64" pageNumber="65">Trenchia</emphasis>
Knudsen, 1964
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<typeStatus id="B257881F381E0B5CFF26FCCC578CFCFB" box="[189,250,782,808]" pageId="64" pageNumber="65">Type</typeStatus>
species
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<taxonomicName id="AAEC4D3E381E0B5CFF26FCFC5550FC8B" ID-CoL="583V9" authority="Knudsen, 1964" authorityName="Knudsen" authorityYear="1964" box="[189,550,830,856]" class="Gastropoda" genus="Trenchia" kingdom="Animalia" order="Seguenziida" pageId="64" pageNumber="65" phylum="Mollusca" rank="species" species="wolffi">
<emphasis id="5F98EAAF381E0B5CFF26FCFC561BFC8B" box="[189,365,830,856]" italics="true" pageId="64" pageNumber="65">Trenchia wolffi</emphasis>
Knudsen, 1964
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(original designation), Recent, Kermadec Trench.
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<subSubSection id="25F66536381E0B5CFF26FC43531CFB8D" pageId="64" pageNumber="65" type="discussion">
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<emphasis id="5F98EAAF381E0B5CFF26FC435659FC48" bold="true" box="[189,303,897,923]" pageId="64" pageNumber="65">Remarks</emphasis>
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Species of 
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<emphasis id="5F98EAAF381E0B5CFEA6FC7356D2FC18" box="[317,420,945,971]" italics="true" pageId="64" pageNumber="65">Trenchia</emphasis>
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closely resemble those of 
<taxonomicName id="AAEC4D3E381E0B5CFD41FC73536DFC18" authority="Marshall, 1988" authorityName="Marshall" authorityYear="1988" box="[730,1051,945,971]" class="Gastropoda" genus="Xyloskenea" kingdom="Animalia" order="Seguenziida" pageId="64" pageNumber="65" phylum="Mollusca" rank="genus">
<emphasis id="5F98EAAF381E0B5CFD41FC735416FC18" box="[730,864,945,971]" italics="true" pageId="64" pageNumber="65">Xyloskenea</emphasis>
<bibRefCitation id="097D4B4C381E0B5CFCFCFC73536DFC18" author="Marshall B. A." box="[871,1051,945,971]" pageId="64" pageNumber="65" pagination="215 - 229" refId="ref61660" refString="Marshall B. A. 1988. Thysanodontinae: a new subfamily of the Trochidae (Gastropoda). Journal of Molluscan Studies 54 (2): 215 - 229. https: // doi. org / 10.1093 / mollus / 54.2.215" type="journal article" year="1988">Marshall, 1988</bibRefCitation>
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, but the latter differ in having distinct spiral sculpture on the initial part of the protoconch. In 
<taxonomicName id="AAEC4D3E381E0B5CFC4BFC145341FC23" authorityName="Knudsen" authorityYear="1964" box="[976,1079,982,1008]" class="Gastropoda" genus="Trenchia" kingdom="Animalia" order="Seguenziida" pageId="64" pageNumber="65" phylum="Mollusca" rank="genus">
<emphasis id="5F98EAAF381E0B5CFC4BFC145341FC23" box="[976,1079,982,1008]" italics="true" pageId="64" pageNumber="65">Trenchia</emphasis>
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the protoconch is smooth (
<bibRefCitation id="097D4B4C381E0B5CFF5EFC39569DFBC6" author="Waren A. &amp; Bouchet P." box="[197,491,1019,1045]" pageId="64" pageNumber="65" pagination="1 - 90" refId="ref64203" refString="Waren A. &amp; Bouchet P. 1993. New records, species, genera, and a new family of gastropods from hydrothermal vents and hydrocarbon seeps. Zoologica Scripta 22 (1): 1 - 90. https: // doi. org / 10.1111 / j. 1463 - 6409.1993. tb 00342. x" type="journal article" year="1993">Warén &amp; Bouchet 1993</bibRefCitation>
; 
<bibRefCitation id="097D4B4C381E0B5CFE60FC39558CFBC6" author="Hoffman L. &amp; Gofas S. &amp; Freiwald A." box="[507,762,1019,1045]" pageId="64" pageNumber="65" pagination="1 - 82" refId="ref61010" refString="Hoffman L., Gofas S. &amp; Freiwald A. 2020. A large biodiversity of &quot; skeneimorph &quot; (Gastropoda: Vetigastropoda) species from the South Azorean Seamount Chain, with the description of seventeen new species. Iberus 38 (supplement 9): 1 - 82." type="journal article" year="2020">
Hoffman 
<emphasis id="5F98EAAF381E0B5CFDEBFC3E55D1FBC6" box="[624,679,1019,1045]" italics="true" pageId="64" pageNumber="65">et al</emphasis>
. 2020
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). Although the protoconch of the material discussed below is somewhat eroded, no spiral sculpture is evident and for this reason I refer the new species to 
<taxonomicName id="AAEC4D3E381E0B5CFF25FB865652FB8D" authorityName="Knudsen" authorityYear="1964" box="[190,292,1092,1118]" class="Gastropoda" genus="Trenchia" kingdom="Animalia" order="Seguenziida" pageId="64" pageNumber="65" phylum="Mollusca" rank="genus">
<emphasis id="5F98EAAF381E0B5CFF25FB865652FB8D" box="[190,292,1092,1118]" italics="true" pageId="64" pageNumber="65">Trenchia</emphasis>
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. This appears to be the first record of the genus from the Indian Ocean.
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