299 lines
39 KiB
XML
299 lines
39 KiB
XML
<document id="89FCFF6A8D632AAA234706AB339C6FA4" ID-CLB-Dataset="22563" ID-DOI="10.11646/zootaxa.4537.1.1" ID-GBIF-Dataset="897dc544-e3e9-46db-b36e-4aa995caabc4" ID-ISSN="1175-5326" ID-Zenodo-Dep="3771214" ID-ZooBank="169CBE5C-3A6E-438B-8A81-0491CBFBAC85" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1588019833456" checkinUser="plazi" docAuthor="Blake, James A." docDate="2018" docId="03A2CB16FFB4A209FF36FB6EFD7DFC98" docLanguage="en" docName="zootaxa.4537.1.1.pdf" docOrigin="Zootaxa 4537 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Chaetocirratulus neogracilis Blake 2018, new species" docType="treatment" docVersion="8" lastPageNumber="68" masterDocId="FF9BB36EFFF5A24AFFA1FFBEFF85FFC4" masterDocTitle="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" masterLastPageNumber="130" masterPageNumber="1" pageNumber="66" updateTime="1698837503771" updateUser="ExternalLinkService">
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<mods:titleInfo id="BE2BBFD2BCDC3BD1E636C3A25AAACBF0">
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<mods:title id="4C09200865F2B4AEC5CBCDAFDED649CA">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</mods:title>
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</mods:titleInfo>
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<mods:name id="43377524DC5F7C7D657129FDB8F81167" type="personal">
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<mods:role id="4FB598655AED17C4585825A93D20A954">
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<mods:roleTerm id="AF2342E4325A1F816F6C6F0BB2091EE7">Author</mods:roleTerm>
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<mods:namePart id="5BECDC11C39B305DF41555423CD80CC2">Blake, James A.</mods:namePart>
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<mods:typeOfResource id="0913641E1AF360F01FF508B9D5161FC8">text</mods:typeOfResource>
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<mods:title id="A10A77E7BEE3F2D32E7E573D2846A2F2">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="4D94E66B82914A2D08FF9AB3D4A6450B">
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<mods:date id="C335FAD735FCE5869DC2581128DC4EDE">2018</mods:date>
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<mods:detail id="18505C511DAA59875168CB6B50B2D144" type="pubDate">
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<mods:number id="5D666D8D8F8241ECD18CCA073B220589">2018-12-21</mods:number>
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<mods:number id="E48B9E77F3D232DE2D8C4B9FD507C74C">4537</mods:number>
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</mods:detail>
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<mods:detail id="F1ED3FE83994CA26284E321119FD0ECD" type="issue">
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<mods:number id="E1CF2762D33C30A714038CD37D1019C0">1</mods:number>
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<mods:classification id="A1B44FF9364E90463E5FA292E8645214">journal article</mods:classification>
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<mods:identifier id="99585302BAB48938EA2A9C107A35FFEB" type="DOI">10.11646/zootaxa.4537.1.1</mods:identifier>
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<mods:identifier id="3C0172E698D51A6E274ECDE33C271892" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="A41120EF12462B3CAB521E251E26498F" type="Zenodo-Dep">3771214</mods:identifier>
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<treatment id="03A2CB16FFB4A209FF36FB6EFD7DFC98" ID-DOI="http://doi.org/10.5281/zenodo.3798546" ID-GBIF-Taxon="163813287" ID-Zenodo-Dep="3798546" LSID="urn:lsid:plazi:treatment:03A2CB16FFB4A209FF36FB6EFD7DFC98" httpUri="http://treatment.plazi.org/id/03A2CB16FFB4A209FF36FB6EFD7DFC98" lastPageId="67" lastPageNumber="68" pageId="65" pageNumber="66">
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<subSubSection id="C311298BFFB4A20BFF36FB6EFD0DFB2E" box="[151,648,1232,1258]" pageId="65" pageNumber="66" type="nomenclature">
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<paragraph id="8BB47A00FFB4A20BFF36FB6EFD0DFB2E" blockId="65.[151,648,1232,1291]" box="[151,648,1232,1258]" pageId="65" pageNumber="66">
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<heading id="D0FCCD6CFFB4A20BFF36FB6EFD0DFB2E" bold="true" box="[151,648,1232,1258]" fontSize="11" level="1" pageId="65" pageNumber="66" reason="1">
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<emphasis id="B97FA612FFB4A20BFF36FB6EFD0DFB2E" bold="true" box="[151,648,1232,1258]" pageId="65" pageNumber="66">
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<taxonomicName id="4C0B0183FFB4A20BFF36FB6EFE75FB2E" ID-CoL="TBDM" authority="Blake, 2018" authorityName="Blake" authorityYear="2018" box="[151,496,1232,1258]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Terebellida" pageId="65" pageNumber="66" phylum="Annelida" rank="species" species="neogracilis" status="sp. nov.">
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<emphasis id="B97FA612FFB4A20BFF36FB6EFE75FB2E" bold="true" box="[151,496,1232,1258]" italics="true" pageId="65" pageNumber="66">Chaetocirratulus neogracilis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A24C1B69FFB4A20BFE59FB6EFD0DFB2E" box="[504,648,1232,1258]" pageId="65" pageNumber="66" rank="species">new species</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C311298BFFB4A20BFF36FB4CFE86FACF" box="[151,259,1266,1291]" pageId="65" pageNumber="66" type="description">
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<paragraph id="8BB47A00FFB4A20BFF36FB4CFE86FACF" blockId="65.[151,648,1232,1291]" box="[151,259,1266,1291]" pageId="65" pageNumber="66">
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<figureCitation id="13306685FFB4A20BFF36FB4CFE86FACF" box="[151,259,1266,1291]" captionStart="FIGURE 35" captionStartId="66.[151,250,1944,1966]" captionTargetBox="[159,1415,491,1927]" captionTargetId="figure@66.[150,1436,476,1937]" captionTargetPageId="66" captionText="FIGURE 35. Chaetocirratulus neogracilis n. sp. A, anterior end, dorsal view; B, posterior end, dorsal view; C, parapodium from posterior segment; D–F, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); B–G, paratypes (USNM 1490738)." figureDoi="http://doi.org/10.5281/zenodo.3771288" httpUri="https://zenodo.org/record/3771288/files/figure.png" pageId="65" pageNumber="66">Figure 35</figureCitation>
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</paragraph>
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||
</subSubSection>
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<subSubSection id="C311298BFFB4A20BFF36FA84FB68FAB3" pageId="65" pageNumber="66" type="materials_examined">
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<paragraph id="8BB47A00FFB4A20BFF36FA84FB68FAB3" blockId="65.[151,1437,1338,2011]" pageId="65" pageNumber="66">
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<emphasis id="B97FA612FFB4A20BFF36FA84FE3DFA97" bold="true" box="[151,440,1338,1363]" pageId="65" pageNumber="66">
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<collectingRegion id="49CFB4E2FFB4A20BFF36FA84FF7AFA97" box="[151,255,1338,1363]" pageId="65" pageNumber="66">Material</collectingRegion>
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examined.
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<collectingRegion id="49CFB4E2FFB4A20BFE31FA84FE3DFA97" box="[400,440,1338,1363]" pageId="65" pageNumber="66">Off</collectingRegion>
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</emphasis>
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<materialsCitation id="3B63705DFFB4A20BFE65FA84FC0BFA97" ID-GBIF-Occurrence="2609009962" box="[452,910,1338,1363]" collectionCode="SEPBOP, R" country="Peru" location="Peru-Chile Trench" pageId="65" pageNumber="66" specimenCount="1" stateProvince="Peru-Chile Trench">
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<emphasis id="B97FA612FFB4A20BFE65FA84FD76FA97" bold="true" box="[452,755,1338,1363]" pageId="65" pageNumber="66">
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<collectingCountry id="F31C3A90FFB4A20BFE65FA84FE7AFA97" box="[452,511,1338,1363]" name="Peru" pageId="65" pageNumber="66">Peru</collectingCountry>
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,
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<collectingRegion id="49CFB4E2FFB4A20BFDB1FA84FD76FA97" box="[528,755,1338,1363]" pageId="65" pageNumber="66">Peru-Chile Trench</collectingRegion>
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</emphasis>
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,
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<collectionCode id="ED1AE2C5FFB4A20BFCA7FA85FCE8FA97" box="[774,877,1339,1363]" pageId="65" pageNumber="66">SEPBOP</collectionCode>
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,
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<collectionCode id="ED1AE2C5FFB4A20BFCDDFA85FC0BFA97" box="[892,910,1339,1363]" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="65" pageNumber="66">R</collectionCode>
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</materialsCitation>
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/
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<collectionCode id="ED1AE2C5FFB4A20BFC36FA85FC2EFA97" box="[919,939,1339,1363]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="65" pageNumber="66" type="Museum">V</collectionCode>
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<materialsCitation id="3B63705DFFB4A20BFC17FA85FB6CFAB3" ID-GBIF-Occurrence="2609010069" collectionCode="USNM" collectorName="Anton Bruun, Cr." country="Peru" elevation="4100" latitude="-13.733334" longLatPrecision="1290" longitude="-77.55" pageId="65" pageNumber="66" specimenCode="USNM 1490737, USNM 1490738" specimenCount="6" stateProvince="Peru-Chile Trench" typeStatus="holotype">
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<collectorName id="26FE1FD6FFB4A20BFC17FA85FB07FA97" box="[950,1154,1339,1363]" pageId="65" pageNumber="66">
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<emphasis id="B97FA612FFB4A20BFC17FA85FBCEFA97" box="[950,1099,1339,1363]" italics="true" pageId="65" pageNumber="66">Anton Bruun</emphasis>
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||
, Cr.
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||
</collectorName>
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17, Sta. 663-C,
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<geoCoordinate id="EE3F1CC7FFB4A20BFA9DFA84FA12FA97" box="[1340,1431,1338,1363]" degrees="13" direction="south" minutes="44" orientation="latitude" pageId="65" pageNumber="66" precision="925" value="-13.733334">13°44ʹS</geoCoordinate>
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,
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<geoCoordinate id="EE3F1CC7FFB4A20BFF36FAE0FF7EFAB3" box="[151,251,1374,1399]" degrees="77" direction="west" minutes="33" orientation="longitude" pageId="65" pageNumber="66" precision="925" value="-77.55">77°33ʹW</geoCoordinate>
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, Menzies trawl,
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||
<quantity id="4CF3D7E5FFB4A20BFE12FAE1FD8FFAB2" box="[435,522,1375,1399]" metricMagnitude="3" metricUnit="m" metricValue="4.1" pageId="65" pageNumber="66" unit="m" value="4100.0">
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<elevation id="00269D33FFB4A20BFE12FAE1FD8FFAB2" box="[435,522,1375,1399]" metricMagnitude="3" metricUnit="m" metricValue="4.1" pageId="65" pageNumber="66" unit="m" value="4100.0">4100 m</elevation>
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</quantity>
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,
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||
<emphasis id="B97FA612FFB4A20BFDB7FAE0FDF8FAB3" bold="true" box="[534,637,1374,1399]" pageId="65" pageNumber="66">
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<typeStatus id="54B0C4A2FFB4A20BFDB7FAE0FDF8FAB3" box="[534,637,1374,1399]" pageId="65" pageNumber="66" type="holotype">holotype</typeStatus>
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||
</emphasis>
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||
(
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||
<specimenCode id="DBADD27BFFB4A20BFD2AFAE1FCCCFAB3" box="[651,841,1375,1399]" collectionCode="USNM" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" lsid="urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="65" pageNumber="66" type="Museum">USNM 1490737</specimenCode>
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||
) and
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||
<specimenCount id="9D0DB189FFB4A20BFC26FAE0FB97FAB3" box="[903,1042,1374,1399]" pageId="65" pageNumber="66" type="generic" typeStatus="paratypes">
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||
6
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||
<emphasis id="B97FA612FFB4A20BFC3DFAE0FB97FAB3" bold="true" box="[924,1042,1374,1399]" pageId="65" pageNumber="66">paratypes</emphasis>
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||
</specimenCount>
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||
(
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<specimenCode id="DBADD27BFFB4A20BFB81FAE1FB64FAB3" box="[1056,1249,1375,1399]" collectionCode="USNM" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" lsid="urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="65" pageNumber="66" type="Museum">USNM 1490738</specimenCode>
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)
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</materialsCitation>
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||
.
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C311298BFFB4A208FF66FA3CFB1FFEA1" lastPageId="66" lastPageNumber="67" pageId="65" pageNumber="66" type="description">
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||
<paragraph id="8BB47A00FFB4A20BFF66FA3CFDB2F98B" blockId="65.[151,1437,1338,2011]" pageId="65" pageNumber="66">
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<emphasis id="B97FA612FFB4A20BFF66FA3CFED4FA5F" bold="true" box="[199,337,1410,1435]" pageId="65" pageNumber="66">Description</emphasis>
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. All specimens incomplete, seven anterior ends and one posterior end. Three longest anterior fragments with 24, 26, and 31 setigers (
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<typeStatus id="54B0C4A2FFB4A20BFDF1FA18FD3DFA7B" box="[592,696,1446,1471]" pageId="65" pageNumber="66" type="holotype">holotype</typeStatus>
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); these 6, 5.5, and
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<quantity id="4CF3D7E5FFB4A20BFC29FA19FC4CFA7A" box="[904,969,1447,1471]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="65" pageNumber="66" unit="mm" value="8.0">8 mm</quantity>
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long, respectively, and
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<quantity id="4CF3D7E5FFB4A20BFB73FA18FADCFA7A" box="[1234,1369,1446,1471]" metricMagnitude="-4" metricUnit="m" metricValue="7.0" metricValueMax="8.0" metricValueMin="6.0" pageId="65" pageNumber="66" unit="mm" value="0.7" valueMax="0.8" valueMin="0.6">0.6–0.8 mm</quantity>
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wide. Posterior fragment with 13 setigers,
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<quantity id="4CF3D7E5FFB4A20BFD93FA75FDF6FA26" box="[562,627,1483,1507]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" pageId="65" pageNumber="66" unit="mm" value="3.0">3 mm</quantity>
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||
long and
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<quantity id="4CF3D7E5FFB4A20BFD45FA74FCBEFA26" box="[740,827,1482,1507]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="65" pageNumber="66" unit="mm" value="0.5">0.5 mm</quantity>
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wide. All fragments elongate, narrow, and cylindrical in cross-section; ventral groove absent. One specimen with weak mid-ventral ridge. Color in alcohol: flesh colored with no pigment. Two anterior fragments and posterior fragment gravid with large yolky eggs
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<quantity id="4CF3D7E5FFB4A20BFB48F9ADFAFEF9EF" box="[1257,1403,1554,1579]" metricMagnitude="-1" metricUnit="m" metricValue="1.45" metricValueMax="1.5" metricValueMin="1.4" pageId="65" pageNumber="66" unit="mm" value="145.0" valueMax="150.0" valueMin="140.0">140–150 µm</quantity>
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||
in diameter with large germinal vesicle.
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||
</paragraph>
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||
<paragraph id="8BB47A00FFB4A20BFF66F9E4FECEF8E2" blockId="65.[151,1437,1338,2011]" pageId="65" pageNumber="66">
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||
Prostomium broadly triangular, wedge-shaped, tapering to narrow anterior end (
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||
<figureCitation id="13306685FFB4A20BFBC1F9E4FB49F9B7" box="[1120,1228,1626,1651]" captionStart="FIGURE 35" captionStartId="66.[151,250,1944,1966]" captionTargetBox="[159,1415,491,1927]" captionTargetId="figure@66.[150,1436,476,1937]" captionTargetPageId="66" captionText="FIGURE 35. Chaetocirratulus neogracilis n. sp. A, anterior end, dorsal view; B, posterior end, dorsal view; C, parapodium from posterior segment; D–F, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); B–G, paratypes (USNM 1490738)." figureDoi="http://doi.org/10.5281/zenodo.3771288" httpUri="https://zenodo.org/record/3771288/files/figure.png" pageId="65" pageNumber="66">Fig. 35A</figureCitation>
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); eyespots absent; nuchal organs forming prominent lobes on posterior lateral border (
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<figureCitation id="13306685FFB4A20BFC39F9C0FB86F953" box="[920,1027,1662,1687]" captionStart="FIGURE 35" captionStartId="66.[151,250,1944,1966]" captionTargetBox="[159,1415,491,1927]" captionTargetId="figure@66.[150,1436,476,1937]" captionTargetPageId="66" captionText="FIGURE 35. Chaetocirratulus neogracilis n. sp. A, anterior end, dorsal view; B, posterior end, dorsal view; C, parapodium from posterior segment; D–F, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); B–G, paratypes (USNM 1490738)." figureDoi="http://doi.org/10.5281/zenodo.3771288" httpUri="https://zenodo.org/record/3771288/files/figure.png" pageId="65" pageNumber="66">Fig. 35A</figureCitation>
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||
). Peristomium divided into a broad, smooth anterior section that merges with a wider and shorter posterior section, likely in part an achaetous segment that bears a pair of dorsal tentacles anteriorly and first pair of branchiae on posterior border (
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<figureCitation id="13306685FFB4A20BFB01F978FA8DF91B" box="[1184,1288,1734,1759]" captionStart="FIGURE 35" captionStartId="66.[151,250,1944,1966]" captionTargetBox="[159,1415,491,1927]" captionTargetId="figure@66.[150,1436,476,1937]" captionTargetPageId="66" captionText="FIGURE 35. Chaetocirratulus neogracilis n. sp. A, anterior end, dorsal view; B, posterior end, dorsal view; C, parapodium from posterior segment; D–F, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); B–G, paratypes (USNM 1490738)." figureDoi="http://doi.org/10.5281/zenodo.3771288" httpUri="https://zenodo.org/record/3771288/files/figure.png" pageId="65" pageNumber="66">Fig. 35A</figureCitation>
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); second pair of branchiae on setiger 1 dorsal to notosetae (
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<figureCitation id="13306685FFB4A20BFD02F954FC88F8C7" box="[675,781,1770,1795]" captionStart="FIGURE 35" captionStartId="66.[151,250,1944,1966]" captionTargetBox="[159,1415,491,1927]" captionTargetId="figure@66.[150,1436,476,1937]" captionTargetPageId="66" captionText="FIGURE 35. Chaetocirratulus neogracilis n. sp. A, anterior end, dorsal view; B, posterior end, dorsal view; C, parapodium from posterior segment; D–F, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); B–G, paratypes (USNM 1490738)." figureDoi="http://doi.org/10.5281/zenodo.3771288" httpUri="https://zenodo.org/record/3771288/files/figure.png" pageId="65" pageNumber="66">Fig. 35A</figureCitation>
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). All dorsal tentacles and branchiae missing or limited to stumps or scars.
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</paragraph>
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<paragraph id="8BB47A00FFB4A208FF66F88CFA93FE84" blockId="65.[151,1437,1338,2011]" lastBlockId="66.[151,1436,151,429]" lastPageId="66" lastPageNumber="67" pageId="65" pageNumber="66">
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Parapodia reduced to low lobes from which setae emerge. Noto- and neuropodial setal fascicles close together. Some posterior parapodia with small papilla between noto- and neurosetae, likely a sense organ (
|
||
<figureCitation id="13306685FFB4A20BFB70F8E8FAB2F8AB" box="[1233,1335,1878,1903]" captionStart="FIGURE 35" captionStartId="66.[151,250,1944,1966]" captionTargetBox="[159,1415,491,1927]" captionTargetId="figure@66.[150,1436,476,1937]" captionTargetPageId="66" captionText="FIGURE 35. Chaetocirratulus neogracilis n. sp. A, anterior end, dorsal view; B, posterior end, dorsal view; C, parapodium from posterior segment; D–F, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); B–G, paratypes (USNM 1490738)." figureDoi="http://doi.org/10.5281/zenodo.3771288" httpUri="https://zenodo.org/record/3771288/files/figure.png" pageId="65" pageNumber="66">Fig. 35C</figureCitation>
|
||
); present on posterior segments of anterior fragments and most segments of posterior fragment. Anterior setae all capillaries, 3–4 broad and brass-colored, a few others thin, more elongate, possibly natatory. Neuropodial acicular spines first present from setigers 11–14; one spine per neuropodium at first, then increasing to 3–4 spines over following 5–6 segments. Notopodial spines not present in available anterior ends, but both noto- and neuropodial acicular spines present on 13-segment posterior fragment. Form and arrangement of neuropodial spines identical in anterior fragments and single posterior fragment. Notopodial spines usually a single large spine with 1–2 capillaries; neuroacicular spines 2–3 with two capillaries (
|
||
<figureCitation id="13306685FFB7A208FD1AFEBAFCC9FED8" box="[699,844,260,285]" captionStart="FIGURE 35" captionStartId="66.[151,250,1944,1966]" captionTargetBox="[159,1415,491,1927]" captionTargetId="figure@66.[150,1436,476,1937]" captionTargetPageId="66" captionText="FIGURE 35. Chaetocirratulus neogracilis n. sp. A, anterior end, dorsal view; B, posterior end, dorsal view; C, parapodium from posterior segment; D–F, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); B–G, paratypes (USNM 1490738)." figureDoi="http://doi.org/10.5281/zenodo.3771288" httpUri="https://zenodo.org/record/3771288/files/figure.png" pageId="66" pageNumber="67">Fig. 35C, G</figureCitation>
|
||
). Individual spines golden in color, gently curved, tapering to pointed tip (
|
||
<figureCitation id="13306685FFB7A208FE3FFE99FE6AFE84" box="[414,495,295,320]" captionStart="FIGURE 35" captionStartId="66.[151,250,1944,1966]" captionTargetBox="[159,1415,491,1927]" captionTargetId="figure@66.[150,1436,476,1937]" captionTargetPageId="66" captionText="FIGURE 35. Chaetocirratulus neogracilis n. sp. A, anterior end, dorsal view; B, posterior end, dorsal view; C, parapodium from posterior segment; D–F, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); B–G, paratypes (USNM 1490738)." figureDoi="http://doi.org/10.5281/zenodo.3771288" httpUri="https://zenodo.org/record/3771288/files/figure.png" pageId="66" pageNumber="67">Fig. 35</figureCitation>
|
||
D–F). Pygidium with a rounded lobe ventral to anal opening (
|
||
<figureCitation id="13306685FFB7A208FB02FE99FA8FFE84" box="[1187,1290,295,320]" captionStart="FIGURE 35" captionStartId="66.[151,250,1944,1966]" captionTargetBox="[159,1415,491,1927]" captionTargetId="figure@66.[150,1436,476,1937]" captionTargetPageId="66" captionText="FIGURE 35. Chaetocirratulus neogracilis n. sp. A, anterior end, dorsal view; B, posterior end, dorsal view; C, parapodium from posterior segment; D–F, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); B–G, paratypes (USNM 1490738)." figureDoi="http://doi.org/10.5281/zenodo.3771288" httpUri="https://zenodo.org/record/3771288/files/figure.png" pageId="66" pageNumber="67">Fig. 35B</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BB47A00FFB7A208FF66FEF2FB1FFEA1" blockId="66.[151,1436,151,429]" box="[199,1178,332,357]" pageId="66" pageNumber="67">
|
||
<emphasis id="B97FA612FFB7A208FF66FEF2FE28FEA1" bold="true" box="[199,429,332,357]" pageId="66" pageNumber="67">Methyl Green stain</emphasis>
|
||
. Specimens staining uniformly with no pattern, destaining rapidly.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C311298BFFB7A208FF66FED1FC7EFE68" pageId="66" pageNumber="67" type="etymology">
|
||
<paragraph id="8BB47A00FFB7A208FF66FED1FC7EFE68" blockId="66.[151,1436,151,429]" pageId="66" pageNumber="67">
|
||
<emphasis id="B97FA612FFB7A208FF66FED1FECBFE4C" bold="true" box="[199,334,367,392]" pageId="66" pageNumber="67">Etymology.</emphasis>
|
||
The species name
|
||
<taxonomicName id="4C0B0183FFB7A208FD81FED1FD1BFE4C" authorityName="Blake" authorityYear="2018" box="[544,670,367,392]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Terebellida" pageId="66" pageNumber="67" phylum="Annelida" rank="species" species="neogracilis">
|
||
<emphasis id="B97FA612FFB7A208FD81FED1FD1BFE4C" box="[544,670,367,392]" italics="true" pageId="66" pageNumber="67">neogracilis</emphasis>
|
||
</taxonomicName>
|
||
is derived from the Latin,
|
||
<emphasis id="B97FA612FFB7A208FC64FECFFC6BFE4C" box="[965,1006,369,392]" italics="true" pageId="66" pageNumber="67">neo</emphasis>
|
||
for new and
|
||
<emphasis id="B97FA612FFB7A208FBDEFED1FB4BFE4C" box="[1151,1230,367,392]" italics="true" pageId="66" pageNumber="67">gracile</emphasis>
|
||
for slender or thin and indicating the close similarity with
|
||
<taxonomicName id="4C0B0183FFB7A208FDF3FE2AFCB6FE69" baseAuthorityName="Moore" baseAuthorityYear="1923" box="[594,819,404,429]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="66" pageNumber="67" phylum="Annelida" rank="species" species="gracilis">
|
||
<emphasis id="B97FA612FFB7A208FDF3FE2AFCB6FE69" box="[594,819,404,429]" italics="true" pageId="66" pageNumber="67">Chaetozone gracilis</emphasis>
|
||
</taxonomicName>
|
||
of
|
||
<bibRefCitation id="EF9A07F1FFB7A208FCF9FE2BFC7DFE68" author="Moore, J. P." box="[856,1016,404,428]" pageId="66" pageNumber="67" pagination="179 - 250" refId="ref86525" refString="Moore, J. P. (1923) Polychaetous annelids dredged by the U. S. S. Albatross off the coast of Southern California in 1904, Spionidae to Sabellariidae. Proceedings of the Philadelphia Academy of Natural Sciences, 74, 179 - 250, pls. 17 - 18." type="journal article" year="1923">Moore (1923)</bibRefCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="DF742A88FFB7A208FF36F826FE3BF82F" ID-DOI="http://doi.org/10.5281/zenodo.3771288" ID-Zenodo-Dep="3771288" httpUri="https://zenodo.org/record/3771288/files/figure.png" pageId="66" pageNumber="67" startId="66.[151,250,1944,1966]" targetBox="[159,1415,491,1927]" targetPageId="66">
|
||
<paragraph id="8BB47A00FFB7A208FF36F826FE3BF82F" blockId="66.[151,1436,1944,2027]" pageId="66" pageNumber="67">
|
||
<emphasis id="B97FA612FFB7A208FF36F826FEA4F86A" bold="true" box="[151,289,1944,1966]" pageId="66" pageNumber="67">FIGURE 35.</emphasis>
|
||
<taxonomicName id="4C0B0183FFB7A208FE88F826FDD5F86A" authority="Blake, 2018" authorityName="Blake" authorityYear="2018" box="[297,592,1944,1966]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Terebellida" pageId="66" pageNumber="67" phylum="Annelida" rank="species" species="neogracilis" status="sp. nov.">
|
||
<emphasis id="B97FA612FFB7A208FE88F826FDD5F86A" box="[297,592,1944,1966]" italics="true" pageId="66" pageNumber="67">Chaetocirratulus neogracilis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B97FA612FFB7A208FDF6F826FD17F86A" bold="true" box="[599,658,1944,1966]" pageId="66" pageNumber="67">
|
||
<taxonomicNameLabel id="A24C1B69FFB7A208FDF6F826FD17F86A" box="[599,658,1944,1966]" pageId="66" pageNumber="67" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
A, anterior end, dorsal view; B, posterior end, dorsal view; C, parapodium from posterior segment; D–F, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); B–G, paratypes (USNM 1490738).
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="C311298BFFB6A209FF66FF29FE07FCFC" pageId="67" pageNumber="68" type="discussion">
|
||
<paragraph id="8BB47A00FFB6A209FF66FF29FB8FFE84" blockId="67.[151,1437,151,861]" pageId="67" pageNumber="68">
|
||
<emphasis id="B97FA612FFB6A209FF66FF29FEBEFF74" bold="true" box="[199,315,151,176]" pageId="67" pageNumber="68">Remarks.</emphasis>
|
||
<taxonomicName id="4C0B0183FFB6A209FEE5FF29FD0EFF74" authority="Blake, 2018" authorityName="Blake" authorityYear="2018" box="[324,651,151,176]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="neogracilis" status="sp. nov.">
|
||
<emphasis id="B97FA612FFB6A209FEE5FF29FD0EFF74" box="[324,651,151,176]" italics="true" pageId="67" pageNumber="68">Chaetocirratulus neogracilis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B97FA612FFB6A209FD35FF29FD53FF74" bold="true" box="[660,726,151,176]" pageId="67" pageNumber="68">
|
||
<taxonomicNameLabel id="A24C1B69FFB6A209FD35FF29FD53FF74" box="[660,726,151,176]" pageId="67" pageNumber="68" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
from
|
||
<quantity id="4CF3D7E5FFB6A209FCBEFF26FCF2FF6B" box="[799,887,152,176]" metricMagnitude="3" metricUnit="m" metricValue="4.1" pageId="67" pageNumber="68" unit="m" value="4100.0">4100 m</quantity>
|
||
off
|
||
<collectingCountry id="F31C3A90FFB6A209FC08FF26FC58FF6B" box="[937,989,152,175]" name="Peru" pageId="67" pageNumber="68">Peru</collectingCountry>
|
||
is similar to
|
||
<taxonomicName id="4C0B0183FFB6A209FBD8FF29FADEFF74" baseAuthorityName="Moore" baseAuthorityYear="1923" box="[1145,1371,151,176]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="gracilis">
|
||
<emphasis id="B97FA612FFB6A209FBD8FF29FADEFF74" box="[1145,1371,151,176]" italics="true" pageId="67" pageNumber="68">Chaetozone gracilis</emphasis>
|
||
</taxonomicName>
|
||
from
|
||
<quantity id="4CF3D7E5FFB6A209FF36FF02FF75FF10" box="[151,240,188,213]" metricMagnitude="3" metricUnit="m" metricValue="4.016" pageId="67" pageNumber="68" unit="m" value="4016.0">4016 m</quantity>
|
||
off southern California (
|
||
<bibRefCitation id="EF9A07F1FFB6A209FDB4FF02FD2BFF10" author="Moore, J. P." box="[533,686,188,212]" pageId="67" pageNumber="68" pagination="179 - 250" refId="ref86525" refString="Moore, J. P. (1923) Polychaetous annelids dredged by the U. S. S. Albatross off the coast of Southern California in 1904, Spionidae to Sabellariidae. Proceedings of the Philadelphia Academy of Natural Sciences, 74, 179 - 250, pls. 17 - 18." type="journal article" year="1923">Moore, 1923</bibRefCitation>
|
||
), which is known only from the
|
||
<typeStatus id="54B0C4A2FFB6A209FB95FF02FB1CFF11" box="[1076,1177,188,213]" pageId="67" pageNumber="68" type="holotype">holotype</typeStatus>
|
||
, redescribed by
|
||
<bibRefCitation id="EF9A07F1FFB6A209FAFAFF02FF61FF3C" author="Blake, J. A." pageId="67" pageNumber="68" pagination="263 - 384" refId="ref82272" refString="Blake, J. A. (1996) Chapter 8. Family Cirratulidae. In: Blake, J. A., Hilbig, B. & Scott, P. H. (Eds.), Taxonomic Atlas of the Santa Maria Basin and Western Santa Barbara Channel. Vol. 6. Annelida Part 3. Polychaeta: Orbiniidae to Cossuridae. Santa Barbara Museum of Natural History, Santa Barbara, pp. 263 - 384." type="book chapter" year="1996">Blake (1996)</bibRefCitation>
|
||
. Initially, these new specimens were thought to be
|
||
<taxonomicName id="4C0B0183FFB6A209FCE2FF5EFC3BFF3C" baseAuthorityName="Moore" baseAuthorityYear="1923" box="[835,958,223,248]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="gracilis">
|
||
<emphasis id="B97FA612FFB6A209FCE2FF5EFC3BFF3C" box="[835,958,223,248]" italics="true" pageId="67" pageNumber="68">C. gracilis</emphasis>
|
||
</taxonomicName>
|
||
because they come from similar abyssal depths, both have a broad conical prostomium, and a peristomium divided into a smooth anterior section and posterior section that bears both the dorsal tentacles and first pair of branchiae.
|
||
</paragraph>
|
||
<paragraph id="8BB47A00FFB6A209FF66FEF2FF50FE31" blockId="67.[151,1437,151,861]" pageId="67" pageNumber="68">
|
||
<taxonomicName id="4C0B0183FFB6A209FF66FEF2FE2CFEA1" baseAuthorityName="Moore" baseAuthorityYear="1923" box="[199,425,332,357]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="gracilis">
|
||
<emphasis id="B97FA612FFB6A209FF66FEF2FE2CFEA1" box="[199,425,332,357]" italics="true" pageId="67" pageNumber="68">Chaetozone gracilis</emphasis>
|
||
</taxonomicName>
|
||
, however, is a much larger species, the
|
||
<typeStatus id="54B0C4A2FFB6A209FCD0FEF2FC56FEA1" box="[881,979,332,357]" pageId="67" pageNumber="68" type="holotype">holotype</typeStatus>
|
||
being
|
||
<quantity id="4CF3D7E5FFB6A209FB83FEF2FBF6FEA0" box="[1058,1139,332,356]" metricMagnitude="-2" metricUnit="m" metricValue="2.9" pageId="67" pageNumber="68" unit="mm" value="29.0">29 mm</quantity>
|
||
long with 110 setigers. In contrast, the largest anterior fragment of
|
||
<taxonomicName id="4C0B0183FFB6A209FDC8FECEFC8CFE4C" authority="Blake, 2018" authorityName="Blake" authorityYear="2018" box="[617,777,367,392]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="neogracilis" status="sp. nov.">
|
||
<emphasis id="B97FA612FFB6A209FDC8FECEFC8CFE4C" box="[617,777,367,392]" italics="true" pageId="67" pageNumber="68">C. neogracilis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B97FA612FFB6A209FCB0FED1FCD4FE4C" bold="true" box="[785,849,367,392]" pageId="67" pageNumber="68">
|
||
<taxonomicNameLabel id="A24C1B69FFB6A209FCB0FED1FCD4FE4C" box="[785,849,367,392]" pageId="67" pageNumber="68" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
is only
|
||
<quantity id="4CF3D7E5FFB6A209FC0EFECEFC77FE43" box="[943,1010,368,392]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="67" pageNumber="68" unit="mm" value="8.0">8 mm</quantity>
|
||
long and has 31 setigers. A posterior fragment in the same collection has only 13 setigers and only adds
|
||
<quantity id="4CF3D7E5FFB6A209FC6BFE2AFB94FE68" box="[970,1041,404,428]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" pageId="67" pageNumber="68" unit="mm" value="3.0">3 mm</quantity>
|
||
to the length. However, the size differential would not account for observed differences in the number and distribution of acicular spines along the body.
|
||
</paragraph>
|
||
<paragraph id="8BB47A00FFB6A209FF66FDBEFE07FCFC" blockId="67.[151,1437,151,861]" pageId="67" pageNumber="68">
|
||
In
|
||
<taxonomicName id="4C0B0183FFB6A209FF46FE41FE4CFDDC" baseAuthorityName="Moore" baseAuthorityYear="1923" box="[231,457,511,536]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="gracilis">
|
||
<emphasis id="B97FA612FFB6A209FF46FE41FE4CFDDC" box="[231,457,511,536]" italics="true" pageId="67" pageNumber="68">Chaetozone gracilis</emphasis>
|
||
</taxonomicName>
|
||
, the notosetae are all capillaries except for the last, pre-pygidial segments (ca. setiger 108–110), where two spines accompany two capillaries; in
|
||
<taxonomicName id="4C0B0183FFB6A209FCE7FD9BFC62FDF9" authority="Blake, 2018" authorityName="Blake" authorityYear="2018" box="[838,999,548,573]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="neogracilis" status="sp. nov.">
|
||
<emphasis id="B97FA612FFB6A209FCE7FD9BFC62FDF9" box="[838,999,548,573]" italics="true" pageId="67" pageNumber="68">C. neogracilis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B97FA612FFB6A209FC50FD9AFBB6FDF9" bold="true" box="[1009,1075,548,573]" pageId="67" pageNumber="68">
|
||
<taxonomicNameLabel id="A24C1B69FFB6A209FC50FD9AFBB6FDF9" box="[1009,1075,548,573]" pageId="67" pageNumber="68" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
, the last 13 setigers of the one posterior fragment each have one large conspicuous notoacicular spine and two capillaries. The posterior neurosetae of
|
||
<taxonomicName id="4C0B0183FFB6A209FE95FDD3FE2CFD41" baseAuthorityName="Moore" baseAuthorityYear="1923" box="[308,425,620,645]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="gracilis">
|
||
<emphasis id="B97FA612FFB6A209FE95FDD3FE2CFD41" box="[308,425,620,645]" italics="true" pageId="67" pageNumber="68">C. gracilis</emphasis>
|
||
</taxonomicName>
|
||
include 4–6 acicular spines and an equal number of alternating capillaries. In contrast, the posterior neuroacicular spines of
|
||
<taxonomicName id="4C0B0183FFB6A209FDADFD2EFD2FFD6C" authority="Blake, 2018" authorityName="Blake" authorityYear="2018" box="[524,682,655,680]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="neogracilis" status="sp. nov.">
|
||
<emphasis id="B97FA612FFB6A209FDADFD2EFD2FFD6C" box="[524,682,655,680]" italics="true" pageId="67" pageNumber="68">C. neogracilis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B97FA612FFB6A209FD13FD31FD75FD6C" bold="true" box="[690,752,655,680]" pageId="67" pageNumber="68">
|
||
<taxonomicNameLabel id="A24C1B69FFB6A209FD13FD31FD75FD6C" box="[690,752,655,680]" pageId="67" pageNumber="68" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
include 2–3 heavy spines and two capillaries. Both the noto- and neuroacicular spines of posterior segments in
|
||
<taxonomicName id="4C0B0183FFB6A209FD7BFD0BFCFEFD09" authority="Blake, 2018" authorityName="Blake" authorityYear="2018" box="[730,891,692,717]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="neogracilis" status="sp. nov.">
|
||
<emphasis id="B97FA612FFB6A209FD7BFD0BFCFEFD09" box="[730,891,692,717]" italics="true" pageId="67" pageNumber="68">C. neogracilis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B97FA612FFB6A209FC25FD0AFC43FD09" bold="true" box="[900,966,692,717]" pageId="67" pageNumber="68">
|
||
<taxonomicNameLabel id="A24C1B69FFB6A209FC25FD0AFC43FD09" box="[900,966,692,717]" pageId="67" pageNumber="68" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
are large and provide the species with a conspicuous posterior armature. In
|
||
<taxonomicName id="4C0B0183FFB6A209FD80FD66FD13FD34" baseAuthorityName="Moore" baseAuthorityYear="1923" box="[545,662,727,752]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="gracilis">
|
||
<emphasis id="B97FA612FFB6A209FD80FD66FD13FD34" box="[545,662,727,752]" italics="true" pageId="67" pageNumber="68">C. gracilis</emphasis>
|
||
</taxonomicName>
|
||
, the posterior spines are not overly large or conspicuous.
|
||
<taxonomicName id="4C0B0183FFB6A209FAB9FD69FF69FCD1" baseAuthorityName="Moore" baseAuthorityYear="1923" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="species" species="gracilis">
|
||
<emphasis id="B97FA612FFB6A209FAB9FD69FF69FCD1" italics="true" pageId="67" pageNumber="68">Chaetozone gracilis</emphasis>
|
||
</taxonomicName>
|
||
, however, should also be referred to
|
||
<taxonomicName id="4C0B0183FFB6A209FD2EFD42FCCBFCD1" authority="Blake, 2018" authorityName="Blake" authorityYear="2018" box="[655,846,764,789]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Terebellida" pageId="67" pageNumber="68" phylum="Annelida" rank="genus" status="gen. nov.">
|
||
<emphasis id="B97FA612FFB6A209FD2EFD42FCCBFCD1" box="[655,846,764,789]" italics="true" pageId="67" pageNumber="68">Chaetocirratulus</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A24C1B69FFB6A209FCF7FD42FC20FCD0" box="[854,933,764,789]" pageId="67" pageNumber="68" rank="genus">
|
||
<emphasis id="B97FA612FFB6A209FCF7FD42FC1BFCD1" bold="true" box="[854,926,764,789]" pageId="67" pageNumber="68">n. gen</emphasis>
|
||
.
|
||
</taxonomicNameLabel>
|
||
and will be dealt with in a subsequent paper (Blake unpublished).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C311298BFFB6A209FF66FCFAFD7DFC98" box="[199,760,836,861]" pageId="67" pageNumber="68" type="distribution">
|
||
<paragraph id="8BB47A00FFB6A209FF66FCFAFD7DFC98" blockId="67.[151,1437,151,861]" box="[199,760,836,861]" pageId="67" pageNumber="68">
|
||
<emphasis id="B97FA612FFB6A209FF66FCFAFEE5FC99" bold="true" box="[199,352,836,861]" pageId="67" pageNumber="68">Distribution.</emphasis>
|
||
Off
|
||
<collectingCountry id="F31C3A90FFB6A209FE35FCFBFE42FC98" box="[404,455,837,860]" name="Peru" pageId="67" pageNumber="68">Peru</collectingCountry>
|
||
in abyssal depths,
|
||
<quantity id="4CF3D7E5FFB6A209FD3DFCFAFD71FC98" box="[668,756,836,860]" metricMagnitude="3" metricUnit="m" metricValue="4.1" pageId="67" pageNumber="68" unit="m" value="4100.0">4100 m</quantity>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |