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104 lines
13 KiB
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<document id="7956A37918C742FA08AF6503C207CE20" ID-CLB-Dataset="26288" ID-DOI="10.11646/zootaxa.4629.2.1" ID-GBIF-Dataset="5e65e38c-fb0f-4bc3-81ec-aa827b75314d" ID-ISSN="1175-5326" ID-Zenodo-Dep="3268977" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1562304593715" checkinUser="plazi" docAuthor="Blake, James A." docDate="2019" docId="AB0E185AC479FFB24FE91AF7AEC923C8" docLanguage="en" docName="zootaxa.4629.2.1.pdf" docOrigin="Zootaxa 4629 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Aphelochaeta Blake 1991" docType="treatment" docVersion="13" lastPageNumber="153" masterDocId="57376022C478FFB04F7E1D61AC24213B" masterDocTitle="New species of Cirratulidae (Annelida, Polychaeta) from abyssal depths of the Clarion-Clipperton Fracture Zone, North Equatorial Pacific Ocean" masterLastPageNumber="187" masterPageNumber="151" pageNumber="152" updateTime="1698738238973" updateUser="ExternalLinkService">
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<mods:title id="5A21CD64B5C136B133D6933DB0DFFDD0">New species of Cirratulidae (Annelida, Polychaeta) from abyssal depths of the Clarion-Clipperton Fracture Zone, North Equatorial Pacific Ocean</mods:title>
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<mods:namePart id="D0BE908B5E8D20C18DC5861B89D487D3">Blake, James A.</mods:namePart>
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<mods:title id="A7240365A0D5894DAC685053969BBE62">Zootaxa</mods:title>
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<mods:part id="6BDDD39D74E2561EB87814B49CC6F41B">
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<mods:date id="485BB77AA29356CD590858488E63827A">2019</mods:date>
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<mods:number id="923F0DE52E3220B9AD647FA89FF58A82">2019-07-05</mods:number>
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<mods:number id="8CE34CD7F5FFA44372FD8B045F938660">4629</mods:number>
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<mods:start id="ECF890B12739AFE55650FC6F5DCFB8D8">151</mods:start>
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<treatment id="AB0E185AC479FFB24FE91AF7AEC923C8" ID-GBIF-Taxon="158525118" LSID="urn:lsid:plazi:treatment:AB0E185AC479FFB24FE91AF7AEC923C8" httpUri="http://treatment.plazi.org/id/AB0E185AC479FFB24FE91AF7AEC923C8" lastPageId="2" lastPageNumber="153" pageId="1" pageNumber="152">
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<subSubSection id="6BBDFAC7C479FFB14FE91AF7A82E26C3" pageId="1" pageNumber="152" type="nomenclature">
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<paragraph id="2318A94CC479FFB14FE91AF7AE09268B" blockId="1.[151,557,1942,1969]" box="[151,557,1942,1969]" pageId="1" pageNumber="152">
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<heading id="78501E20C479FFB14FE91AF7AE09268B" bold="true" box="[151,557,1942,1969]" fontSize="11" level="1" pageId="1" pageNumber="152" reason="1">
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<emphasis id="11D3755EC479FFB14FE91AF7AE09268B" bold="true" box="[151,557,1942,1969]" pageId="1" pageNumber="152">
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Genus
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<taxonomicName id="E4A7D2CFC479FFB14F901AF7AE09268B" ID-CoL="84LGM" authority="Blake, 1991" authorityName="Blake" authorityYear="1991" box="[238,557,1942,1969]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="1" pageNumber="152" phylum="Annelida" rank="genus">
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<emphasis id="11D3755EC479FFB14F901AF7ADB0268A" bold="true" box="[238,404,1942,1969]" italics="true" pageId="1" pageNumber="152">Aphelochaeta</emphasis>
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<bibRefCitation id="4736D4BDC479FFB14EE21AF6AE09268B" author="Blake, J. A." box="[412,557,1942,1969]" pageId="1" pageNumber="152" pagination="17 - 30" refId="ref19317" refString="Blake, J. A. (1991) Revision of some genera and species of Cirratulidae from the Western North Atlantic. Ophelia, Supplement No. 5, 17 - 30." type="book chapter" year="1991">Blake, 1991</bibRefCitation>
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</taxonomicName>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="2318A94CC479FFB14FE91ABEA82E26C3" blockId="1.[151,1034,2015,2040]" box="[151,1034,2015,2040]" pageId="1" pageNumber="152">
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<emphasis id="11D3755EC479FFB14FE91ABEAD0326C3" bold="true" box="[151,295,2015,2040]" pageId="1" pageNumber="152">Type-species:</emphasis>
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<taxonomicName id="E4A7D2CFC479FFB14E501A81AE5B26C3" authority="Hartman, 1960" authorityName="Hartman" authorityYear="1960" box="[302,639,2015,2040]" class="Polychaeta" family="Cirratulidae" genus="Tharyx" kingdom="Animalia" order="Terebellida" pageId="1" pageNumber="152" phylum="Annelida" rank="species" species="monilaris">
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<emphasis id="11D3755EC479FFB14E501A81ADF926C3" box="[302,477,2016,2040]" italics="true" pageId="1" pageNumber="152">Tharyx monilaris</emphasis>
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<bibRefCitation id="4736D4BDC479FFB14E9A1A81AE5B26C3" author="Hartman, O." box="[484,639,2015,2040]" pageId="1" pageNumber="152" pagination="69 - 215" refId="ref20328" refString="Hartman, O. (1960). Systematic account of some marine invertebrate animals from the deep basins of Southern California. Allan Hancock Pacific Expeditions, 22, 69 - 215. Available from: https: // biodiversitylibrary. org / page / 4682240 (Accessed 4 Jul. 2019)" type="journal article" year="1960">Hartman, 1960</bibRefCitation>
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</taxonomicName>
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. Original designation by
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<bibRefCitation id="4736D4BDC479FFB14C001ABEA82226C3" author="Blake, J. A." box="[894,1030,2015,2040]" pageId="1" pageNumber="152" pagination="17 - 30" refId="ref19317" refString="Blake, J. A. (1991) Revision of some genera and species of Cirratulidae from the Western North Atlantic. Ophelia, Supplement No. 5, 17 - 30." type="book chapter" year="1991">Blake (1991)</bibRefCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="6BBDFAC7C47AFFB24FE91DF9AE322078" pageId="2" pageNumber="153" type="diagnosis">
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<paragraph id="2318A94CC47AFFB24FE91DF9AE322078" blockId="2.[151,1437,152,755]" pageId="2" pageNumber="153">
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<emphasis id="11D3755EC47AFFB24FE91DF9AD362188" bold="true" box="[151,274,152,179]" pageId="2" pageNumber="153">Diagnosis.</emphasis>
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(after
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<bibRefCitation id="4736D4BDC47AFFB24E1F1DF8ADCD2188" author="Blake, J. A." box="[353,489,153,179]" pageId="2" pageNumber="153" pagination="1 - 140" refId="ref19631" refString="Blake, J. A. (2018) Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, USCG Glacier, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America. Zootaxa, 4537 (1), 1 - 140. https: // doi. org / 10.11646 / zootaxa. 4537.1.1" type="journal article" year="2018">Blake 2018</bibRefCitation>
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). Prostomium conical to rounded; peristomium elongate with pair of grooved dorsal tentacles arising either on or anterior to setiger 1. Anterior segments often expanded, crowded or uncrowded; abdominal segments sometimes beaded or moniliform in appearance; setae simple capillaries lacking distinct serrations using light microscopy but distinct fibrils may be visible using SEM; posterior end frequently expanded, tapering to a simple pygidial lobe.
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</paragraph>
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</subSubSection>
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<subSubSection id="6BBDFAC7C47AFFB24FB91C2CAEC923C8" pageId="2" pageNumber="153" type="discussion">
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<paragraph id="2318A94CC47AFFB24FB91C2CAEEC2304" blockId="2.[151,1437,152,755]" pageId="2" pageNumber="153">
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<emphasis id="11D3755EC47AFFB24FB91C2CAD1F205C" bold="true" box="[199,315,333,359]" pageId="2" pageNumber="153">Remarks.</emphasis>
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As part of a revision of the genus
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<taxonomicName id="E4A7D2CFC47AFFB24DC81C2CAF80205C" authority=", Blake (1991)" authorityName=", Blake" authorityYear="1991" box="[694,932,333,359]" class="Polychaeta" family="Cirratulidae" genus="Tharyx" kingdom="Animalia" order="Terebellida" pageId="2" pageNumber="153" phylum="Annelida" rank="genus">
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<emphasis id="11D3755EC47AFFB24DC81C2CAF21205C" box="[694,773,333,359]" italics="true" pageId="2" pageNumber="153">Tharyx</emphasis>
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,
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<bibRefCitation id="4736D4BDC47AFFB24C6D1C2CAF80205C" author="Blake, J. A." box="[787,932,333,359]" pageId="2" pageNumber="153" pagination="17 - 30" refId="ref19317" refString="Blake, J. A. (1991) Revision of some genera and species of Cirratulidae from the Western North Atlantic. Ophelia, Supplement No. 5, 17 - 30." type="book chapter" year="1991">Blake (1991)</bibRefCitation>
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</taxonomicName>
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assigned bitentaculate cirratulid species having only simple, non-serrated capillary setae to a new genus,
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<taxonomicName id="E4A7D2CFC47AFFB24C3D1C10AFF920B0" authorityName="Blake" authorityYear="1991" box="[835,989,369,395]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="2" pageNumber="153" phylum="Annelida" rank="genus">
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<emphasis id="11D3755EC47AFFB24C3D1C10AFF920B0" box="[835,989,369,395]" italics="true" pageId="2" pageNumber="153">Aphelochaeta</emphasis>
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</taxonomicName>
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. The absence of setae other than simple capillaries means that systematists are required to use body shape, details of the pre-setiger region, origin of the dorsal tentacles and anterior branchiae, presence or absence of dorsal and ventral grooves and ridges, form of the posterior end, nature of the pygidium, and Methyl Green staining patterns to identify species.
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<bibRefCitation id="4736D4BDC47AFFB24BE01CBCA91420CC" author="Blake, J. A." box="[1182,1328,477,503]" pageId="2" pageNumber="153" pagination="1 - 140" refId="ref19631" refString="Blake, J. A. (2018) Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, USCG Glacier, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America. Zootaxa, 4537 (1), 1 - 140. https: // doi. org / 10.11646 / zootaxa. 4537.1.1" type="journal article" year="2018">Blake (2018)</bibRefCitation>
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reviewed a wide range of morphological details that are available within the genus, but species of
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<taxonomicName id="E4A7D2CFC47AFFB24B0D1F60A9292320" authorityName="Blake" authorityYear="1991" box="[1139,1293,513,539]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="2" pageNumber="153" phylum="Annelida" rank="genus">
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<emphasis id="11D3755EC47AFFB24B0D1F60A9292320" box="[1139,1293,513,539]" italics="true" pageId="2" pageNumber="153">Aphelochaeta</emphasis>
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</taxonomicName>
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are the most difficult of the bitentaculate cirratulids to identify.
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</paragraph>
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<paragraph id="2318A94CC47AFFB24FB91F28AEC923C8" blockId="2.[151,1437,152,755]" pageId="2" pageNumber="153">
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In the present study, six species of
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<taxonomicName id="E4A7D2CFC47AFFB24D341F28AEC02358" authorityName="Blake" authorityYear="1991" box="[586,740,585,611]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="2" pageNumber="153" phylum="Annelida" rank="genus">
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<emphasis id="11D3755EC47AFFB24D341F28AEC02358" box="[586,740,585,611]" italics="true" pageId="2" pageNumber="153">Aphelochaeta</emphasis>
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</taxonomicName>
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have been identified. Most specimens are long and threadlike, but, fortunately, each species has a distinct set of characters that makes identifications possible if the specimens are in good condition. There are differences in the size and configuration of the pre-setiger region including presence or absence of annular rings on the peristomium, differences in the placement of the dorsal tentacles and first branchiae, development of parapodia, and MG staining patterns.
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</paragraph>
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</subSubSection>
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</treatment>
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