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<document id="34A80AB095F430DF70CBA6A07661C8C3" ID-CLB-Dataset="25511" ID-DOI="10.11646/zootaxa.4671.3.1" ID-GBIF-Dataset="21741f30-812d-45b7-a766-cdc7e81c32b3" ID-ISSN="1175-5326" ID-Zenodo-Dep="3442450" ID-ZooBank="89B34FE2-BCB0-4F13-B29C-3FDEABD8E15D" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1568800680675" checkinUser="plazi" docAuthor="Blake, James A. &amp; Dean, Harlan K." docDate="2019" docId="038D87C7FFBAFFE2FF47C1E67B62F8CE" docLanguage="en" docName="zootaxa.4671.3.1.pdf" docOrigin="Zootaxa 4671 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Chaetozone dossena Blake &amp; Dean 2019, new species" docType="treatment" docUuid="7A2D3EB1-6998-4BF3-99C2-C8E9268E53EF" docUuidSource="ZooBank" docVersion="11" lastPageNumber="317" masterDocId="FFB4FFBFFFAAFFF2FFD0C17F7E6BFFC9" masterDocTitle="New Species of Cirratulidae (Annelida, Polychaeta) from the Caribbean Sea" masterLastPageNumber="338" masterPageNumber="301" pageNumber="317" updateTime="1698755275600" updateUser="ExternalLinkService">
<mods:mods id="D160C8B83124F557B8CFC8E96F5455BC" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:title id="D0D69D610DECAC7976D8DD6D3E721AAE">New Species of Cirratulidae (Annelida, Polychaeta) from the Caribbean Sea</mods:title>
</mods:titleInfo>
<mods:name id="A33BC715D4614D060D7EFD8CCE66B44E" type="personal">
<mods:role id="A7A2DCC1AC089B556B3BB558440B29C3">
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<mods:namePart id="AC55BF42089E05A72220F2A4A76EE88E">Blake, James A.</mods:namePart>
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<mods:namePart id="5773F6ABA5F0714E616593220C2EE054">Dean, Harlan K.</mods:namePart>
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<mods:typeOfResource id="EF9CC21E00F744E8EF4AA7C6438F6892">text</mods:typeOfResource>
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<mods:titleInfo id="C2D7B958844A4E41778D65EC1EBF1AE8">
<mods:title id="51E2D97C2D84497C2E7DFB93AE7679A1">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="AAA697909103A013C936BBBDAAF7590F">
<mods:date id="9EF481693B1F5B0268A628DDF521B6D7">2019</mods:date>
<mods:detail id="00EAC97E657E5A7439E1397444945E1D" type="pubDate">
<mods:number id="F874D96A5F20F99DB9567C66594867D7">2019-09-18</mods:number>
</mods:detail>
<mods:detail id="1C7B119E3A1F79A53FA12AF44FB48102" type="volume">
<mods:number id="B4E31E623ABE96F734AFBFB763E7EE52">4671</mods:number>
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<mods:detail id="53B37A748EBEF69F63289DE7EF01F318" type="issue">
<mods:number id="A4F6AFD607186B936B6A90C091E87758">3</mods:number>
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<mods:start id="37F9E1BF72A88152FEBBF9DFCDDB8D44">301</mods:start>
<mods:end id="8372BE844C52AE9CF14426881C71F348">338</mods:end>
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<mods:classification id="C30A1A980FB8ADE03041566C15EE33C7">journal article</mods:classification>
<mods:identifier id="81846026E55CCFC443A8AFC3F5E33A4D" type="CLB-Dataset">25511</mods:identifier>
<mods:identifier id="4823D6B578BE3E009B14ACC2C30F5F1A" type="DOI">10.11646/zootaxa.4671.3.1</mods:identifier>
<mods:identifier id="DBAB6C37C091B1E1D0C42FE3F5AE34F9" type="GBIF-Dataset">21741f30-812d-45b7-a766-cdc7e81c32b3</mods:identifier>
<mods:identifier id="59FF69D88FB152C482E4E6D1264AD74F" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="1B2387587E3608B8B9B189DCA11D64BD" type="Zenodo-Dep">3442450</mods:identifier>
<mods:identifier id="F9CA98117D58319D6624923A7154D8CA" type="ZooBank">89B34FE2-BCB0-4F13-B29C-3FDEABD8E15D</mods:identifier>
</mods:mods>
<treatment id="038D87C7FFBAFFE2FF47C1E67B62F8CE" ID-DOI="http://doi.org/10.5281/zenodo.5944673" ID-GBIF-Taxon="159608488" ID-Zenodo-Dep="5944673" LSID="urn:lsid:zoobank.org:act:7A2D3EB1-6998-4BF3-99C2-C8E9268E53EF" httpUri="http://treatment.plazi.org/id/038D87C7FFBAFFE2FF47C1E67B62F8CE" lastPageNumber="317" pageId="16" pageNumber="317">
<subSubSection id="C33E655AFFBAFFE2FF47C1E67C4FFF7A" box="[151,548,153,180]" pageId="16" pageNumber="317" type="nomenclature">
<paragraph id="8B9B36D1FFBAFFE2FF47C1E67C4FFF7A" blockId="16.[151,964,153,252]" box="[151,548,153,180]" pageId="16" pageNumber="317">
<heading id="D0D381BDFFBAFFE2FF47C1E67C4FFF7A" bold="true" box="[151,548,153,180]" fontSize="11" level="1" pageId="16" pageNumber="317" reason="1">
<emphasis id="B950EAC3FFBAFFE2FF47C1E67C4FFF7A" bold="true" box="[151,548,153,180]" pageId="16" pageNumber="317">
<taxonomicName id="4C244D52FFBAFFE2FF47C1E67FE7FF7D" ID-CoL="85RBM" authority="Blake &amp; Dean, 2019" authorityName="Blake &amp; Dean" authorityYear="2019" box="[151,396,153,180]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="16" pageNumber="317" phylum="Annelida" rank="species" species="dossena" status="sp. nov.">
<emphasis id="B950EAC3FFBAFFE2FF47C1E67FE7FF7D" bold="true" box="[151,396,153,180]" italics="true" pageId="16" pageNumber="317">Chaetozone dossena</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26357B8FFBAFFE2FE44C1E57C4FFF7A" box="[404,548,153,180]" pageId="16" pageNumber="317" rank="species">new species</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C33E655AFFBAFFE2FF47C1C27DAFFF35" pageId="16" pageNumber="317" type="description">
<paragraph id="8B9B36D1FFBAFFE2FF47C1C27F41FF1E" blockId="16.[151,964,153,252]" box="[151,298,189,215]" pageId="16" pageNumber="317">
<figureCitation id="131F2A54FFBAFFE2FF47C1C27F41FF1E" box="[151,298,189,215]" captionStart-0="FIGURE 9" captionStart-1="FIGURE 10" captionStartId-0="17.[151,250,1919,1944]" captionStartId-1="18.[151,250,1932,1957]" captionTargetBox-0="[156,1419,206,1851]" captionTargetBox-1="[156,1429,201,1892]" captionTargetId-0="figure@17.[151,1435,196,1858]" captionTargetId-1="figure@18.[151,1436,196,1897]" captionTargetPageId-0="17" captionTargetPageId-1="18" captionText-0="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." captionText-1="FIGURE 10. Chaetozone dossena n. sp. Holotype (USNM 49932):A, anterior end, dorsal view; B, neuropodial acicular spine and capillaries from setiger 18; C, neuropodial acicular spines and capillaries from about setiger 25; D, notopodial acicular spines and capillaries from posterior cinctured segment.A, Stained with Shirlastain A." figureDoi-0="http://doi.org/10.5281/zenodo.3442472" figureDoi-1="http://doi.org/10.5281/zenodo.3442474" httpUri-0="https://zenodo.org/record/3442472/files/figure.png" httpUri-1="https://zenodo.org/record/3442474/files/figure.png" pageId="16" pageNumber="317">Figures 9–10</figureCitation>
</paragraph>
<paragraph id="8B9B36D1FFBAFFE2FF47C19E7DAFFF35" blockId="16.[151,964,153,252]" box="[151,964,225,252]" pageId="16" pageNumber="317">
<uri id="FFB53AD3FFBAFFE2FF47C19E7DAFFF35" box="[151,964,225,252]" pageId="16" pageNumber="317">
urn:lsid:zoobank.org:act:
<uuid id="FF820C04FFBAFFE2FE7EC19E7DAFFF35" box="[430,964,225,252]" pageId="16" pageNumber="317">7A2D3EB1-6998-4BF3-99C2-C8E9268E53EF</uuid>
</uri>
</paragraph>
</subSubSection>
<subSubSection id="C33E655AFFBAFFE2FF47C0567A78FEAE" pageId="16" pageNumber="317" type="materials_examined">
<paragraph id="8B9B36D1FFBAFFE2FF47C0567A78FEAE" blockId="16.[151,1437,297,1800]" pageId="16" pageNumber="317">
<emphasis id="B950EAC3FFBAFFE2FF47C0567F13FE8D" bold="true" box="[151,376,297,324]" pageId="16" pageNumber="317">
<collectingRegion id="49E0F833FFBAFFE2FF47C0567E94FE8D" box="[151,255,297,324]" pageId="16" pageNumber="317">Material</collectingRegion>
examined
</emphasis>
.
<emphasis id="B950EAC3FFBAFFE2FE55C0567C5FFE8D" bold="true" box="[389,564,297,324]" pageId="16" pageNumber="317">
<collectingRegion id="49E0F833FFBAFFE2FE55C0567C5FFE8D" box="[389,564,297,324]" pageId="16" pageNumber="317">Caribbean Sea</collectingRegion>
</emphasis>
,
<materialsCitation id="3B4C3C8CFFBAFFE2FD91C0557A64FEAE" ID-GBIF-Occurrence="2413161112" collectingDate="1971-06-22" collectionCode="USNM" collectorName="Rex Edwards" country="Venezuela" elevation="8" location="Cumana" pageId="16" pageNumber="317" specimenCode="USNM 49932" specimenCount="1" stateProvince="Sucre" typeStatus="holotype">
<emphasis id="B950EAC3FFBAFFE2FD91C0557CD2FE8D" bold="true" box="[577,697,298,324]" pageId="16" pageNumber="317">
<collectingCountry id="F3337641FFBAFFE2FD91C0557CD2FE8D" box="[577,697,298,324]" name="Venezuela" pageId="16" pageNumber="317">Venezuela</collectingCountry>
</emphasis>
,
<emphasis id="B950EAC3FFBAFFE2FD16C0567DCFFE8D" bold="true" box="[710,932,297,324]" pageId="16" pageNumber="317">Bahía de Mochima</emphasis>
, off
<location id="8EFB600AFFBAFFE2FC07C0567A5CFE8A" LSID="urn:lsid:plazi:treatment:038D87C7FFBAFFE2FF47C1E67B62F8CE:8EFB600AFFBAFFE2FC07C0567A5CFE8A" box="[983,1079,297,323]" country="Venezuela" name="Cumana" pageId="16" pageNumber="317" stateProvince="Sucre">Cumaná</location>
,
<collectingRegion id="49E0F833FFBAFFE2FB91C0567AA9FE8A" box="[1089,1218,297,323]" country="Venezuela" name="Sucre" pageId="16" pageNumber="317">Sucre State</collectingRegion>
,
<date id="FF9A1011FFBAFFE2FB1CC0567B0AFE8A" box="[1228,1377,297,324]" pageId="16" pageNumber="317" value="1971-06-22">
<collectingDate id="EFDEE9F9FFBAFFE2FB1CC0567B0AFE8A" box="[1228,1377,297,324]" pageId="16" pageNumber="317" value="1971-06-22">22 June 1971</collectingDate>
</date>
, coll.
<collectorName id="26D15307FFBAFFE2FF47C0317F5BFEAE" box="[151,304,333,360]" pageId="16" pageNumber="317">Rex Edwards</collectorName>
, low water,
<quantity id="4CDC9B34FFBAFFE2FE67C0327C67FEA1" box="[439,524,333,360]" metricMagnitude="0" metricUnit="m" metricValue="8.0" metricValueMax="10.0" metricValueMin="6.0" pageId="16" pageNumber="317" unit="m" value="8.0" valueMax="10.0" valueMin="6.0">
<elevation id="0009D1E2FFBAFFE2FE67C0327C67FEA1" box="[439,524,333,360]" metricMagnitude="0" metricUnit="m" metricValue="8.0" metricValueMax="10.0" metricValueMin="6.0" pageId="16" pageNumber="317" unit="m" value="8.0" valueMax="10.0" valueMin="6.0">6–10 m</elevation>
</quantity>
in calcareous mud,
<emphasis id="B950EAC3FFBAFFE2FD3DC0317D3FFEA1" bold="true" box="[749,852,334,360]" pageId="16" pageNumber="317">
<typeStatus id="549F8873FFBAFFE2FD3DC0317D3FFEA1" box="[749,852,334,360]" pageId="16" pageNumber="317" type="holotype">holotype</typeStatus>
</emphasis>
(
<specimenCode id="DB829EAAFFBAFFE2FCB2C0327A6CFEAE" box="[866,1031,333,359]" 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="16" pageNumber="317" type="Museum">USNM 49932</specimenCode>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C33E655AFFBAFFE2FF17C00E7CE8FA0A" pageId="16" pageNumber="317" type="description">
<paragraph id="8B9B36D1FFBAFFE2FF17C00E7D6AFD06" blockId="16.[151,1437,297,1800]" pageId="16" pageNumber="317">
<emphasis id="B950EAC3FFBAFFE2FF17C00E7F3AFE45" bold="true" box="[199,337,369,396]" pageId="16" pageNumber="317">Description</emphasis>
.
<typeStatus id="549F8873FFBAFFE2FEB1C00E7FA2FE42" box="[353,457,369,395]" pageId="16" pageNumber="317" type="holotype">Holotype</typeStatus>
complete with about 95 setigers, posterior segments twisted,
<quantity id="4CDC9B34FFBAFFE2FB58C00E7A85FE45" box="[1160,1262,369,396]" metricMagnitude="-2" metricUnit="m" metricValue="1.05" pageId="16" pageNumber="317" unit="mm" value="10.5">10.5 mm</quantity>
long,
<quantity id="4CDC9B34FFBAFFE2FAE7C00E7BF6FE45" box="[1335,1437,369,396]" metricMagnitude="-4" metricUnit="m" metricValue="6.5" pageId="16" pageNumber="317" unit="mm" value="0.65">0.65 mm</quantity>
wide across anterior segments,
<quantity id="4CDC9B34FFBAFFE2FE29C0EA7C3BFE79" box="[505,592,405,432]" metricMagnitude="-4" metricUnit="m" metricValue="8.0" pageId="16" pageNumber="317" unit="mm" value="0.8">0.8 mm</quantity>
across largest middle body segments, narrowing in far posterior segments. Anterior 30 segments narrow, dorsoventrally flattened, about 8–10 times wider than long, with dorsum smooth, rounded; venter with distinct groove from about setiger 10–12 continuing through posterior segments; ventral groove narrowing, developing mid-ventral ridge or row of mounds at mid-point where left and right sides of parapodia merge. Anterior parapodia with well-developed lateral shoulders below elevated and rounded dorsum (
<figureCitation id="131F2A54FFBAFFE2FAB4C35A7ED7FDAA" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Figs. 9A</figureCitation>
;
<figureCitation id="131F2A54FFBAFFE2FF1AC3367E95FDAA" box="[202,254,585,611]" captionStart="FIGURE 10" captionStartId="18.[151,250,1932,1957]" captionTargetBox="[156,1429,201,1892]" captionTargetId="figure@18.[151,1436,196,1897]" captionTargetPageId="18" captionText="FIGURE 10. Chaetozone dossena n. sp. Holotype (USNM 49932):A, anterior end, dorsal view; B, neuropodial acicular spine and capillaries from setiger 18; C, neuropodial acicular spines and capillaries from about setiger 25; D, notopodial acicular spines and capillaries from posterior cinctured segment.A, Stained with Shirlastain A." figureDoi="http://doi.org/10.5281/zenodo.3442474" httpUri="https://zenodo.org/record/3442474/files/figure.png" pageId="16" pageNumber="317">10A</figureCitation>
). Middle body segments narrower, then becoming larger, more rounded than anterior setigers, but with individual segments still narrow, about 6–8 times wider than long. Color in alcohol light tan, with few weak pigment speckles on ventral lip of mouth and mid-ventral surface of first setiger (
<figureCitation id="131F2A54FFBAFFE2FC15C3EE7A75FD62" box="[965,1054,657,683]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Fig. 9B</figureCitation>
). A distinctive dorsal blood vessel and heart body apparent in anterior setigers (
<figureCitation id="131F2A54FFBAFFE2FD5CC3CA7C9FFD06" box="[652,756,693,719]" captionStart="FIGURE 10" captionStartId="18.[151,250,1932,1957]" captionTargetBox="[156,1429,201,1892]" captionTargetId="figure@18.[151,1436,196,1897]" captionTargetPageId="18" captionText="FIGURE 10. Chaetozone dossena n. sp. Holotype (USNM 49932):A, anterior end, dorsal view; B, neuropodial acicular spine and capillaries from setiger 18; C, neuropodial acicular spines and capillaries from about setiger 25; D, notopodial acicular spines and capillaries from posterior cinctured segment.A, Stained with Shirlastain A." figureDoi="http://doi.org/10.5281/zenodo.3442474" httpUri="https://zenodo.org/record/3442474/files/figure.png" pageId="16" pageNumber="317">Fig. 10A</figureCitation>
).
</paragraph>
<paragraph id="8B9B36D1FFBAFFE2FF17C3A67A9BFC02" blockId="16.[151,1437,297,1800]" pageId="16" pageNumber="317">
Pre-setiger region short, about as wide as long (
<figureCitation id="131F2A54FFBAFFE2FD08C3A67D4EFD3A" box="[728,805,729,755]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Figs. 9</figureCitation>
A–B; 10A). Prostomium elongate, triangular, tapering to narrow, rounded, slightly pointed tip (
<figureCitation id="131F2A54FFBAFFE2FD95C3827CCBFCDE" box="[581,672,765,791]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Fig. 9A</figureCitation>
); eyespots absent; nuchal organs inconspicuous narrow lateral slits. Peristomium with two rings, first short dorsally (
<figureCitation id="131F2A54FFBAFFE2FD12C25E7D76FCF2" box="[706,797,801,827]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Fig. 9A</figureCitation>
), ventrally larger, forming upper lip of mouth (
<figureCitation id="131F2A54FFBAFFE2FAE5C25E7BE5FCF2" box="[1333,1422,801,827]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Fig. 9B</figureCitation>
); second ring large, inflated, producing rounded dorsal crest (
<figureCitation id="131F2A54FFBAFFE2FCF9C23A7DEAFC96" box="[809,897,837,863]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Fig. 9A</figureCitation>
), ventrally forming lower lip of mouth (
<figureCitation id="131F2A54FFBAFFE2FAE8C23A7BE4FC96" box="[1336,1423,837,863]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Fig. 9B</figureCitation>
). Dorsal tentacles widely separated, arising from posterior margin of peristomium (
<figureCitation id="131F2A54FFBAFFE2FBE2C2167AE6FC4A" box="[1074,1165,873,899]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Fig. 9A</figureCitation>
). First pair of branchiae arising from anterior margin of setiger 1, lateral and posterior to dorsal tentacles; second pair of branchiae on posterior margin of setiger 1, dorsal to notosetae (
<figureCitation id="131F2A54FFBAFFE2FD5AC2CE7C88FC02" box="[650,739,945,971]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Fig. 9A</figureCitation>
), thus with two pairs of branchiae on setiger 1.
</paragraph>
<paragraph id="8B9B36D1FFBAFFE2FF17C2AA7EB3FA9E" blockId="16.[151,1437,297,1800]" pageId="16" pageNumber="317">
Anterior setigers with long, basally thickened capillaries numbering
<quantity id="4CDC9B34FFBAFFE2FC1CC2AA7A5BFC26" box="[972,1072,981,1007]" metricMagnitude="-1" metricUnit="m" metricValue="2.794" metricValueMax="3.048" metricValueMin="2.54" pageId="16" pageNumber="317" unit="in" value="11.0" valueMax="12.0" valueMin="10.0">10–12 in</quantity>
both noto- and neuropodia. Notopodial acicular spines first present from setiger 26–27, numbering 1–2 at first, increasing to
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middle body segments with number of capillaries decreasing to a number equivalent to spines. Neuroacicular spines from setiger 17, replacing several unusually broad, flattened capillaries (
<figureCitation id="131F2A54FFBAFFE2FC94C53E7DCAFB92" box="[836,929,1089,1115]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Fig. 9D</figureCitation>
); spines numbering 1–2 initially (
<figureCitation id="131F2A54FFBAFFE2FAF6C53E7BE4FB92" box="[1318,1423,1089,1115]" captionStart="FIGURE 10" captionStartId="18.[151,250,1932,1957]" captionTargetBox="[156,1429,201,1892]" captionTargetId="figure@18.[151,1436,196,1897]" captionTargetPageId="18" captionText="FIGURE 10. Chaetozone dossena n. sp. Holotype (USNM 49932):A, anterior end, dorsal view; B, neuropodial acicular spine and capillaries from setiger 18; C, neuropodial acicular spines and capillaries from about setiger 25; D, notopodial acicular spines and capillaries from posterior cinctured segment.A, Stained with Shirlastain A." figureDoi="http://doi.org/10.5281/zenodo.3442474" httpUri="https://zenodo.org/record/3442474/files/figure.png" pageId="16" pageNumber="317">Fig. 10B</figureCitation>
), then increasing to
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middle body segments (
<figureCitation id="131F2A54FFBAFFE2FD6CC51A7D4AFBB6" box="[700,801,1125,1151]" captionStart="FIGURE 10" captionStartId="18.[151,250,1932,1957]" captionTargetBox="[156,1429,201,1892]" captionTargetId="figure@18.[151,1436,196,1897]" captionTargetPageId="18" captionText="FIGURE 10. Chaetozone dossena n. sp. Holotype (USNM 49932):A, anterior end, dorsal view; B, neuropodial acicular spine and capillaries from setiger 18; C, neuropodial acicular spines and capillaries from about setiger 25; D, notopodial acicular spines and capillaries from posterior cinctured segment.A, Stained with Shirlastain A." figureDoi="http://doi.org/10.5281/zenodo.3442474" httpUri="https://zenodo.org/record/3442474/files/figure.png" pageId="16" pageNumber="317">Fig. 10C</figureCitation>
), accompanied by an equal number of thin capillaries. In posterior setigers, parapodia becoming elevated, forming full cinctured segments with long spines and companion capillaries (
<figureCitation id="131F2A54FFBAFFE2FECCC5D27FE9FB0E" box="[284,386,1197,1223]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Figs. 9C</figureCitation>
;
<figureCitation id="131F2A54FFBAFFE2FE41C5D27FAEFB0E" box="[401,453,1197,1223]" captionStart="FIGURE 10" captionStartId="18.[151,250,1932,1957]" captionTargetBox="[156,1429,201,1892]" captionTargetId="figure@18.[151,1436,196,1897]" captionTargetPageId="18" captionText="FIGURE 10. Chaetozone dossena n. sp. Holotype (USNM 49932):A, anterior end, dorsal view; B, neuropodial acicular spine and capillaries from setiger 18; C, neuropodial acicular spines and capillaries from about setiger 25; D, notopodial acicular spines and capillaries from posterior cinctured segment.A, Stained with Shirlastain A." figureDoi="http://doi.org/10.5281/zenodo.3442474" httpUri="https://zenodo.org/record/3442474/files/figure.png" pageId="16" pageNumber="317">10D</figureCitation>
). Cinctures with spines of left and right sides not merging dorsally, leaving gap with low mid-dorsal groove (
<figureCitation id="131F2A54FFBAFFE2FE79C5AE7C69FB22" box="[425,514,1233,1259]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Fig. 9C</figureCitation>
). Cinctured spines numbering
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notopodia and
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neuropodia, thus with 13–17 spines on each side. Spines of anterior noto- and neuropodia short, thickened, barely emerging from podial lobes (
<figureCitation id="131F2A54FFBAFFE2FF32C4667F45FAFA" box="[226,302,1305,1331]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Figs. 9</figureCitation>
E–F; 10B–C); posterior spines in cinctured segments long, curved, tapering to rounded tip (
<figureCitation id="131F2A54FFBAFFE2FAE3C4667BFCFAFA" box="[1331,1431,1305,1331]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Figs. 9G</figureCitation>
,
<figureCitation id="131F2A54FFBAFFE2FF47C4427EA7FA9E" box="[151,204,1341,1367]" captionStart="FIGURE 10" captionStartId="18.[151,250,1932,1957]" captionTargetBox="[156,1429,201,1892]" captionTargetId="figure@18.[151,1436,196,1897]" captionTargetPageId="18" captionText="FIGURE 10. Chaetozone dossena n. sp. Holotype (USNM 49932):A, anterior end, dorsal view; B, neuropodial acicular spine and capillaries from setiger 18; C, neuropodial acicular spines and capillaries from about setiger 25; D, notopodial acicular spines and capillaries from posterior cinctured segment.A, Stained with Shirlastain A." figureDoi="http://doi.org/10.5281/zenodo.3442474" httpUri="https://zenodo.org/record/3442474/files/figure.png" pageId="16" pageNumber="317">10D</figureCitation>
).
</paragraph>
<paragraph id="8B9B36D1FFBAFFE2FF17C41E7F50FA56" blockId="16.[151,1437,297,1800]" pageId="16" pageNumber="317">
Pygidial segment with anal opening surrounded by three short dorsal cirri and two somewhat longer ventral cirri (
<figureCitation id="131F2A54FFBAFFE2FF05C4FA7F45FA56" box="[213,302,1413,1439]" captionStart="FIGURE 9" captionStartId="17.[151,250,1919,1944]" captionTargetBox="[156,1419,206,1851]" captionTargetId="figure@17.[151,1435,196,1858]" captionTargetPageId="17" captionText="FIGURE 9. Chaetozone dossena n. sp. Holotype (USNM 49932): A, anterior end, dorsal view; B, anterior end, ventral view; C, posterior end, posterior view; D, neuropodial capillary seta from setiger 15; E–F, neuropodial acicular spines from setigers 17 and 18; G, notopodial acicular spines and capillary from posterior cinctured segment." figureDoi="http://doi.org/10.5281/zenodo.3442472" httpUri="https://zenodo.org/record/3442472/files/figure.png" pageId="16" pageNumber="317">Fig. 9C</figureCitation>
).
</paragraph>
<paragraph id="8B9B36D1FFBAFFE2FF17C4D57CE8FA0A" blockId="16.[151,1437,297,1800]" box="[199,643,1449,1476]" pageId="16" pageNumber="317">
<emphasis id="B950EAC3FFBAFFE2FF17C4D57FC4FA0D" bold="true" box="[199,431,1449,1476]" pageId="16" pageNumber="317">Methyl Green stain</emphasis>
. No stain retained.
</paragraph>
</subSubSection>
<subSubSection id="C33E655AFFBAFFE2FF17C4B17C84F952" pageId="16" pageNumber="317" type="discussion">
<paragraph id="8B9B36D1FFBAFFE2FF17C4B17C84F952" blockId="16.[151,1437,297,1800]" pageId="16" pageNumber="317">
<emphasis id="B950EAC3FFBAFFE2FF17C4B17F5FFA21" bold="true" box="[199,308,1486,1512]" pageId="16" pageNumber="317">Remarks</emphasis>
.
<taxonomicName id="4C244D52FFBAFFE2FE95C4B27C47FA2E" authority="Blake &amp; Dean, 2019" authorityName="Blake &amp; Dean" authorityYear="2019" box="[325,556,1485,1511]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="16" pageNumber="317" phylum="Annelida" rank="species" species="dossena" status="sp. nov.">
<emphasis id="B950EAC3FFBAFFE2FE95C4B27C47FA2E" box="[325,556,1485,1511]" italics="true" pageId="16" pageNumber="317">Chaetozone dossena</emphasis>
</taxonomicName>
<emphasis id="B950EAC3FFBAFFE2FDE6C4B17C13FA21" bold="true" box="[566,632,1486,1512]" pageId="16" pageNumber="317">
<taxonomicNameLabel id="A26357B8FFBAFFE2FDE6C4B17C13FA21" box="[566,632,1486,1512]" pageId="16" pageNumber="317" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
is a distinctive species. The short pre-setiger region with the bulbous and expanded peristomium with a dorsal crest together with the long, tapering prostomium is unique within known species of the genus. In addition, the short, thick, noto- and neuropodial acicular spines transition to long sigmoid spines in the posterior cinctures. The unusually large capillaries with broad, flattened blades in anterior noto- and neuropodia are also distinct. The first pair of branchiae are interpreted as arising from the anterior edge of setiger 1 resulting in two pairs of branchiae on the first setiger.
</paragraph>
</subSubSection>
<subSubSection id="C33E655AFFBAFFE2FF17C7D97D67F92A" pageId="16" pageNumber="317" type="etymology">
<paragraph id="8B9B36D1FFBAFFE2FF17C7D97D67F92A" blockId="16.[151,1437,297,1800]" pageId="16" pageNumber="317">
<emphasis id="B950EAC3FFBAFFE2FF17C7D97F23F909" bold="true" box="[199,328,1702,1728]" pageId="16" pageNumber="317">Etymology</emphasis>
. The epithet,
<taxonomicName id="4C244D52FFBAFFE2FE36C7DA7C2BF976" authorityName="Blake &amp; Dean" authorityYear="2019" box="[486,576,1701,1727]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="16" pageNumber="317" phylum="Annelida" rank="species" species="dossena">
<emphasis id="B950EAC3FFBAFFE2FE36C7DA7C2BF976" box="[486,576,1701,1727]" italics="true" pageId="16" pageNumber="317">dossena</emphasis>
</taxonomicName>
, is from the Latin
<emphasis id="B950EAC3FFBAFFE2FCC7C7DA7D17F976" box="[791,892,1701,1727]" italics="true" pageId="16" pageNumber="317">dossenus</emphasis>
for clown or jester, and refers to the pre-setiger region of this worm, which resembles the hat of a jester.
</paragraph>
</subSubSection>
<subSubSection id="C33E655AFFBAFFE2FF17C7927B62F8CE" box="[199,1289,1773,1800]" pageId="16" pageNumber="317" type="distribution">
<paragraph id="8B9B36D1FFBAFFE2FF17C7927B62F8CE" blockId="16.[151,1437,297,1800]" box="[199,1289,1773,1800]" pageId="16" pageNumber="317">
<emphasis id="B950EAC3FFBAFFE2FF17C7927F32F8C1" bold="true" box="[199,345,1773,1800]" pageId="16" pageNumber="317">Distribution</emphasis>
.
<collectingCountry id="F3337641FFBAFFE2FEB7C7927FB6F8CE" box="[359,477,1773,1799]" name="Venezuela" pageId="16" pageNumber="317">Venezuela</collectingCountry>
, known only from shallow subtidal sediments in the Bahía de Mochima.
</paragraph>
</subSubSection>
</treatment>
</document>
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