treatments-xml/data/03/A2/CB/03A2CB16FFB4A209FF36FB6EFD7DFC98.xml
2024-06-21 12:22:17 +02:00

299 lines
39 KiB
XML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<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">
<mods:mods id="8BC9B7DB2D683F96670EF583058AD5C7" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="BE2BBFD2BCDC3BD1E636C3A25AAACBF0">
<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>
</mods:titleInfo>
<mods:name id="43377524DC5F7C7D657129FDB8F81167" type="personal">
<mods:role id="4FB598655AED17C4585825A93D20A954">
<mods:roleTerm id="AF2342E4325A1F816F6C6F0BB2091EE7">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="5BECDC11C39B305DF41555423CD80CC2">Blake, James A.</mods:namePart>
</mods:name>
<mods:typeOfResource id="0913641E1AF360F01FF508B9D5161FC8">text</mods:typeOfResource>
<mods:relatedItem id="08ADF393E4869B71335D94EA9A3A9B14" type="host">
<mods:titleInfo id="A07899331E5AA17C497E5FBA034829AD">
<mods:title id="A10A77E7BEE3F2D32E7E573D2846A2F2">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="4D94E66B82914A2D08FF9AB3D4A6450B">
<mods:date id="C335FAD735FCE5869DC2581128DC4EDE">2018</mods:date>
<mods:detail id="18505C511DAA59875168CB6B50B2D144" type="pubDate">
<mods:number id="5D666D8D8F8241ECD18CCA073B220589">2018-12-21</mods:number>
</mods:detail>
<mods:detail id="8269E2C76D71BB0C7BA906FD4FC17572" type="volume">
<mods:number id="E48B9E77F3D232DE2D8C4B9FD507C74C">4537</mods:number>
</mods:detail>
<mods:detail id="F1ED3FE83994CA26284E321119FD0ECD" type="issue">
<mods:number id="E1CF2762D33C30A714038CD37D1019C0">1</mods:number>
</mods:detail>
<mods:extent id="F90CD3A94539A177FFAE8A18192A4DBD" unit="page">
<mods:start id="340064E2552B66E46E1DCE3639465281">1</mods:start>
<mods:end id="7842C141D50817831DB3348AB210F28A">130</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:classification id="A1B44FF9364E90463E5FA292E8645214">journal article</mods:classification>
<mods:identifier id="D7D27F550EAA89CC362B5D289AA1DAB0" type="CLB-Dataset">22563</mods:identifier>
<mods:identifier id="99585302BAB48938EA2A9C107A35FFEB" type="DOI">10.11646/zootaxa.4537.1.1</mods:identifier>
<mods:identifier id="D59307E076C0D747BEB9AC4B41D24FDD" type="GBIF-Dataset">897dc544-e3e9-46db-b36e-4aa995caabc4</mods:identifier>
<mods:identifier id="3C0172E698D51A6E274ECDE33C271892" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="A41120EF12462B3CAB521E251E26498F" type="Zenodo-Dep">3771214</mods:identifier>
<mods:identifier id="101F658B0293BC4FBAB84B70AF101F01" type="ZooBank">169CBE5C-3A6E-438B-8A81-0491CBFBAC85</mods:identifier>
</mods:mods>
<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">
<subSubSection id="C311298BFFB4A20BFF36FB6EFD0DFB2E" box="[151,648,1232,1258]" pageId="65" pageNumber="66" type="nomenclature">
<paragraph id="8BB47A00FFB4A20BFF36FB6EFD0DFB2E" blockId="65.[151,648,1232,1291]" box="[151,648,1232,1258]" pageId="65" pageNumber="66">
<heading id="D0FCCD6CFFB4A20BFF36FB6EFD0DFB2E" bold="true" box="[151,648,1232,1258]" fontSize="11" level="1" pageId="65" pageNumber="66" reason="1">
<emphasis id="B97FA612FFB4A20BFF36FB6EFD0DFB2E" bold="true" box="[151,648,1232,1258]" pageId="65" pageNumber="66">
<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.">
<emphasis id="B97FA612FFB4A20BFF36FB6EFE75FB2E" bold="true" box="[151,496,1232,1258]" italics="true" pageId="65" pageNumber="66">Chaetocirratulus neogracilis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A24C1B69FFB4A20BFE59FB6EFD0DFB2E" box="[504,648,1232,1258]" pageId="65" pageNumber="66" rank="species">new species</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C311298BFFB4A20BFF36FB4CFE86FACF" box="[151,259,1266,1291]" pageId="65" pageNumber="66" type="description">
<paragraph id="8BB47A00FFB4A20BFF36FB4CFE86FACF" blockId="65.[151,648,1232,1291]" box="[151,259,1266,1291]" pageId="65" pageNumber="66">
<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; DF, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); BG, 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>
</paragraph>
</subSubSection>
<subSubSection id="C311298BFFB4A20BFF36FA84FB68FAB3" pageId="65" pageNumber="66" type="materials_examined">
<paragraph id="8BB47A00FFB4A20BFF36FA84FB68FAB3" blockId="65.[151,1437,1338,2011]" pageId="65" pageNumber="66">
<emphasis id="B97FA612FFB4A20BFF36FA84FE3DFA97" bold="true" box="[151,440,1338,1363]" pageId="65" pageNumber="66">
<collectingRegion id="49CFB4E2FFB4A20BFF36FA84FF7AFA97" box="[151,255,1338,1363]" pageId="65" pageNumber="66">Material</collectingRegion>
examined.
<collectingRegion id="49CFB4E2FFB4A20BFE31FA84FE3DFA97" box="[400,440,1338,1363]" pageId="65" pageNumber="66">Off</collectingRegion>
</emphasis>
<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">
<emphasis id="B97FA612FFB4A20BFE65FA84FD76FA97" bold="true" box="[452,755,1338,1363]" pageId="65" pageNumber="66">
<collectingCountry id="F31C3A90FFB4A20BFE65FA84FE7AFA97" box="[452,511,1338,1363]" name="Peru" pageId="65" pageNumber="66">Peru</collectingCountry>
,
<collectingRegion id="49CFB4E2FFB4A20BFDB1FA84FD76FA97" box="[528,755,1338,1363]" pageId="65" pageNumber="66">Peru-Chile Trench</collectingRegion>
</emphasis>
,
<collectionCode id="ED1AE2C5FFB4A20BFCA7FA85FCE8FA97" box="[774,877,1339,1363]" pageId="65" pageNumber="66">SEPBOP</collectionCode>
,
<collectionCode id="ED1AE2C5FFB4A20BFCDDFA85FC0BFA97" box="[892,910,1339,1363]" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="65" pageNumber="66">R</collectionCode>
</materialsCitation>
/
<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>
<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">
<collectorName id="26FE1FD6FFB4A20BFC17FA85FB07FA97" box="[950,1154,1339,1363]" pageId="65" pageNumber="66">
<emphasis id="B97FA612FFB4A20BFC17FA85FBCEFA97" box="[950,1099,1339,1363]" italics="true" pageId="65" pageNumber="66">Anton Bruun</emphasis>
, Cr.
</collectorName>
17, Sta. 663-C,
<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>
,
<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>
, Menzies trawl,
<quantity id="4CF3D7E5FFB4A20BFE12FAE1FD8FFAB2" box="[435,522,1375,1399]" metricMagnitude="3" metricUnit="m" metricValue="4.1" pageId="65" pageNumber="66" unit="m" value="4100.0">
<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>
</quantity>
,
<emphasis id="B97FA612FFB4A20BFDB7FAE0FDF8FAB3" bold="true" box="[534,637,1374,1399]" pageId="65" pageNumber="66">
<typeStatus id="54B0C4A2FFB4A20BFDB7FAE0FDF8FAB3" box="[534,637,1374,1399]" pageId="65" pageNumber="66" type="holotype">holotype</typeStatus>
</emphasis>
(
<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>
) and
<specimenCount id="9D0DB189FFB4A20BFC26FAE0FB97FAB3" box="[903,1042,1374,1399]" pageId="65" pageNumber="66" type="generic" typeStatus="paratypes">
6
<emphasis id="B97FA612FFB4A20BFC3DFAE0FB97FAB3" bold="true" box="[924,1042,1374,1399]" pageId="65" pageNumber="66">paratypes</emphasis>
</specimenCount>
(
<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>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C311298BFFB4A208FF66FA3CFB1FFEA1" lastPageId="66" lastPageNumber="67" pageId="65" pageNumber="66" type="description">
<paragraph id="8BB47A00FFB4A20BFF66FA3CFDB2F98B" blockId="65.[151,1437,1338,2011]" pageId="65" pageNumber="66">
<emphasis id="B97FA612FFB4A20BFF66FA3CFED4FA5F" bold="true" box="[199,337,1410,1435]" pageId="65" pageNumber="66">Description</emphasis>
. All specimens incomplete, seven anterior ends and one posterior end. Three longest anterior fragments with 24, 26, and 31 setigers (
<typeStatus id="54B0C4A2FFB4A20BFDF1FA18FD3DFA7B" box="[592,696,1446,1471]" pageId="65" pageNumber="66" type="holotype">holotype</typeStatus>
); these 6, 5.5, and
<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>
long, respectively, and
<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">0.60.8 mm</quantity>
wide. Posterior fragment with 13 setigers,
<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>
long and
<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>
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
<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">140150 µm</quantity>
in diameter with large germinal vesicle.
</paragraph>
<paragraph id="8BB47A00FFB4A20BFF66F9E4FECEF8E2" blockId="65.[151,1437,1338,2011]" pageId="65" pageNumber="66">
Prostomium broadly triangular, wedge-shaped, tapering to narrow anterior end (
<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; DF, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); BG, 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>
); eyespots absent; nuchal organs forming prominent lobes on posterior lateral border (
<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; DF, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); BG, 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>
). 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 (
<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; DF, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); BG, 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>
); second pair of branchiae on setiger 1 dorsal to notosetae (
<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; DF, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); BG, 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>
). All dorsal tentacles and branchiae missing or limited to stumps or scars.
</paragraph>
<paragraph id="8BB47A00FFB4A208FF66F88CFA93FE84" blockId="65.[151,1437,1338,2011]" lastBlockId="66.[151,1436,151,429]" lastPageId="66" lastPageNumber="67" pageId="65" pageNumber="66">
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; DF, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); BG, 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, 34 broad and brass-colored, a few others thin, more elongate, possibly natatory. Neuropodial acicular spines first present from setigers 1114; one spine per neuropodium at first, then increasing to 34 spines over following 56 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 12 capillaries; neuroacicular spines 23 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; DF, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); BG, 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; DF, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); BG, 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>
DF). 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; DF, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); BG, 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; DF, neuropodial acicular spines; G, posterior end, lateral view. A, holotype (USNM 1490737); BG, 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. &amp; 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 108110), 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 46 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 23 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>