258 lines
39 KiB
XML
258 lines
39 KiB
XML
<document id="69F17DBAA2C4E16AD9D3AD1E3716B70C" ID-DOI="10.3853/j.2201-4349.75.2023.1799" ID-ISSN="2201-4349" ID-Zenodo-Dep="10414165" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1703108759495" checkinUser="felipe" docAuthor="Blake, James A." docDate="2023" docId="03B987C1FFC4ED4BB6F3FF156F1DFC79" docLanguage="en" docName="RecAustMus.75.3.249-270.pdf" docOrigin="Records of the Australian Museum (Rec. Aust. Mus.) 75 (3)" docSource="http://dx.doi.org/10.3853/j.2201-4349.75.2023.1799" docStyle="DocumentStyle:997BA24B490466A2F99594A367FA147F.4:RecAustMus.2019-.journal_article.0cover" docStyleId="997BA24B490466A2F99594A367FA147F" docStyleName="RecAustMus.2019-.journal_article.0cover" docStyleVersion="4" docTitle="Chaetocirratulus glebalis Blake 2023, sp. nov." docType="treatment" docUuid="62BD4E47-1F83-46C5-BAFD-6BCF6AC4C2F8" docUuidSource="ZooBank" docVersion="2" lastPageNumber="257" masterDocId="FF80FFB9FFCCED43B619FF806B42FF93" masterDocTitle="New Species of Cirratulidae (Annelida) from Continental Slope and Abyssal Depths off Eastern Australia" masterLastPageNumber="270" masterPageNumber="249" pageNumber="257" updateTime="1703110597725" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="3FFB6E55CF96A1DFC877F017B4638C36">New Species of Cirratulidae (Annelida) from Continental Slope and Abyssal Depths off Eastern Australia</mods:title>
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<mods:namePart id="BFCA6B6C6E665C3A5D97FB62BC6D0330">Blake, James A.</mods:namePart>
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<mods:typeOfResource id="138C469034608A541218261BBCBEB721">text</mods:typeOfResource>
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<mods:title id="986ACF431894162D18873ED3E5809272">Records of the Australian Museum</mods:title>
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<mods:part id="879B97FB7CDCDC63F9B8657AD049044A">
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<mods:date id="46399B3C67435B894C1D8917DC0F6452">2023</mods:date>
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<mods:detail id="20E048E9F641CFACF82138230A4502FE" type="series">
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<mods:title id="B06D8D69023569FB06BDF93103631086">Rec. Aust. Mus.</mods:title>
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<mods:number id="09CD82B9FE8170B5756A1931FC85B109">2023-05-17</mods:number>
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<mods:number id="A4E2DFAE5915DDA5505AFE8C26BEE7C0">75</mods:number>
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<mods:number id="86134307E03C2A95B352E6260D712E69">3</mods:number>
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<mods:start id="EEB27049C1317EDA0A3A227E27353F53">249</mods:start>
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<mods:url id="47F4F3DDA9D13509142748BF0AF5AEA3">http://dx.doi.org/10.3853/j.2201-4349.75.2023.1799</mods:url>
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<mods:classification id="05173CF596345FEBD4F9EB6E42801565">journal article</mods:classification>
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<mods:identifier id="9C65EE91BAF2DECAAD744AA17E2AE97C" type="DOI">10.3853/j.2201-4349.75.2023.1799</mods:identifier>
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<mods:identifier id="8AE53CA5F6C7E13501467A8F781DCEE9" type="ISSN">2201-4349</mods:identifier>
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<mods:identifier id="FCFBB31971EC75BCC9000ED45087CA21" type="ZooBank">7D3BDF25-010F-41A4-AD15-763C3F067D8A</mods:identifier>
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<treatment id="03B987C1FFC4ED4BB6F3FF156F1DFC79" LSID="urn:lsid:zoobank.org:act:62BD4E47-1F83-46C5-BAFD-6BCF6AC4C2F8" httpUri="http://treatment.plazi.org/id/03B987C1FFC4ED4BB6F3FF156F1DFC79" lastPageNumber="257" pageId="8" pageNumber="257">
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<subSubSection id="C30A655CFFC4ED4BB6F3FF15684DFF4B" pageId="8" pageNumber="257" type="nomenclature">
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<paragraph id="8BAF36D7FFC4ED4BB6F3FF156994FF26" blockId="8.[234,726,149,181]" box="[234,726,149,181]" pageId="8" pageNumber="257">
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<heading id="D0E781BBFFC4ED4BB6F3FF156994FF26" bold="true" box="[234,726,149,181]" centered="true" fontSize="12" level="2" pageId="8" pageNumber="257" reason="2">
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<emphasis id="B964EAC5FFC4ED4BB6F3FF156994FF26" bold="true" box="[234,726,149,181]" pageId="8" pageNumber="257">
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<taxonomicName id="4C104D54FFC4ED4BB6F3FF156919FF27" ID-CoL="BDS54" authority="Blake, 2023" authorityName="Blake" authorityYear="2023" box="[234,603,149,180]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="257" phylum="Annelida" rank="species" species="glebalis" status="sp. nov.">
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<emphasis id="B964EAC5FFC4ED4BB6F3FF156919FF27" bold="true" box="[234,603,149,180]" italics="true" pageId="8" pageNumber="257">Chaetocirratulus glebalis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A25757BEFFC4ED4BB47CFF166994FF26" box="[613,726,150,181]" pageId="8" pageNumber="257" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8BAF36D7FFC4ED4BB6A8FF46684DFF4B" blockId="8.[177,783,198,216]" box="[177,783,198,216]" pageId="8" pageNumber="257">
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urn:lsid:zoobank.org:act:
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<uuid id="FFB60C02FFC4ED4BB767FF46684DFF4B" box="[382,783,198,216]" pageId="8" pageNumber="257">62BD4E47-1F83-46C5-BAFD-6BCF6AC4C2F8</uuid>
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</uri>
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</paragraph>
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</subSubSection>
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<subSubSection id="C30A655CFFC4ED4BB7B5FF756956FE83" box="[428,532,245,272]" pageId="8" pageNumber="257" type="description">
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<paragraph id="8BAF36D7FFC4ED4BB7B5FF756956FE83" blockId="8.[428,532,245,272]" box="[428,532,245,272]" pageId="8" pageNumber="257">
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<figureCitation id="132B2A52FFC4ED4BB7B5FF756956FE83" box="[428,532,245,272]" captionStart-0="Figure 5" captionStart-1="Figure 6" captionStartId-0="9.[121,189,1928,1950]" captionStartId-1="10.[166,234,1766,1788]" captionTargetBox-0="[146,1404,180,1878]" captionTargetBox-1="[167,1467,151,1756]" captionTargetId-0="figure-10@9.[121,1421,151,1912]" captionTargetId-1="figure-5@10.[167,1467,151,1756]" captionTargetPageId-0="9" captionTargetPageId-1="10" captionText-0="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." captionText-1="Figure 6. Chaetocirratulus glebalis sp. nov. Photomicrographs (A, C–D) paratype (AM W.53525); (B, E) holotype (AM W.53524). (A) anterior end, right lateral view; (B) anterior end, ventral view; (C) entire fragment, dorsal view; (D) same, left lateral view; (E) posterior segments, dorsal view. A–C, stained with Shirlastain A; D–E, stained with Methyl Green." figureDoi-0="http://doi.org/10.5281/zenodo.10414175" figureDoi-1="http://doi.org/10.5281/zenodo.10414177" httpUri-0="https://zenodo.org/record/10414175/files/figure.png" httpUri-1="https://zenodo.org/record/10414177/files/figure.png" pageId="8" pageNumber="257">Figs 5–6</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="C30A655CFFC4ED4BB6BFFEA46A55FE5C" pageId="8" pageNumber="257" type="materials_examined">
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<paragraph id="8BAF36D7FFC4ED4BB6BFFEA46A55FE5C" blockId="8.[166,794,292,463]" pageId="8" pageNumber="257">
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<materialsCitation id="3B783C8AFFC4ED4BB6BFFEA46A50FE22" collectingDate="2017-05-23" collectionCode="RV, AM" country="Australia" county="Abyssal" elevation="4170" latitude="-39.391" location="Brenke" longLatPrecision="70" longitude="149.597" municipality="Bass Strait Marine Park" pageId="8" pageNumber="257" specimenCount="1" stateProvince="Victoria" typeStatus="holotype">
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<emphasis id="B964EAC5FFC4ED4BB6BFFEA46A53FEAF" bold="true" box="[166,273,292,316]" pageId="8" pageNumber="257">
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<typeStatus id="54AB8875FFC4ED4BB6BFFEA46A53FEAF" box="[166,273,292,316]" pageId="8" pageNumber="257" type="holotype">Holotype</typeStatus>
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||
</emphasis>
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||
:
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<collectingCounty id="62CE4E5BFFC4ED4BB73BFEA46A38FEAF" box="[290,378,292,316]" pageId="8" pageNumber="257">Abyssal</collectingCounty>
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plain off eastern
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<collectingCountry id="F3077647FFC4ED4BB45EFEA469EDFEAF" box="[583,687,292,316]" name="Australia" pageId="8" pageNumber="257">Australia</collectingCountry>
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, between
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<collectingRegion id="49D4F835FFC4ED4BB6BEFEC26A46FEC9" box="[167,260,322,346]" country="Australia" name="Victoria" pageId="8" pageNumber="257">Victoria</collectingRegion>
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and
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<collectingRegion id="49D4F835FFC4ED4BB75DFEC26AF6FEC9" box="[324,436,322,346]" country="Australia" name="Tasmania" pageId="8" pageNumber="257">Tasmania</collectingRegion>
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,
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<collectingMunicipality id="6BCBACADFFC4ED4BB7DDFEC269A4FEC9" box="[452,742,322,346]" pageId="8" pageNumber="257">Bass Strait Marine Park</collectingMunicipality>
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,
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<collectionCode id="ED01AE12FFC4ED4BB4EFFEC2685AFECA" box="[758,792,322,345]" country="Italy" name="Collection of Leptospira Strains" pageId="8" pageNumber="257">RV</collectionCode>
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<taxonomicName id="4C104D54FFC4ED4BB6BEFEE06A22FEE4" authority=", Sta." authorityName="Sta." box="[167,352,351,375]" class="Actinopterygii" family="Nemichthyidae" genus="Investigator" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anguilliformes" pageId="8" pageNumber="257" phylum="Chordata" rank="genus">
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<emphasis id="B964EAC5FFC4ED4BB6BEFEE06A65FEE4" box="[167,295,352,375]" italics="true" pageId="8" pageNumber="257">Investigator</emphasis>
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, Sta.
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</taxonomicName>
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031, coll.
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<date id="FFAE1017FFC4ED4BB7CEFEDF692EFEE4" box="[471,620,351,375]" pageId="8" pageNumber="257" value="2017-05-23">
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<collectingDate id="EFEAE9FFFFC4ED4BB7CEFEDF692EFEE4" box="[471,620,351,375]" pageId="8" pageNumber="257" value="2017-05-23">23 May 2017</collectingDate>
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</date>
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,
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<location id="8ECF600CFFC4ED4BB460FEDF6984FEE4" LSID="urn:lsid:plazi:treatment:03B987C1FFC4ED4BB6F3FF156F1DFC79:8ECF600CFFC4ED4BB460FEDF6984FEE4" box="[633,710,351,375]" country="Australia" county="Abyssal" latitude="-39.391" longLatPrecision="70" longitude="149.597" municipality="Bass Strait Marine Park" name="Brenke" pageId="8" pageNumber="257" stateProvince="Victoria">Brenke</location>
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sledge,
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<geoCoordinate id="EE245010FFC4ED4BB6BFFEFC6A48FE07" box="[166,266,380,404]" degrees="39.422" direction="south" orientation="latitude" pageId="8" pageNumber="257" precision="55" value="-39.422">39.422°S</geoCoordinate>
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<geoCoordinate id="EE245010FFC4ED4BB709FEFC6AC0FE07" box="[272,386,380,404]" degrees="149.604" direction="east" orientation="longitude" pageId="8" pageNumber="257" precision="55" value="149.604">149.604°E</geoCoordinate>
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to
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<geoCoordinate id="EE245010FFC4ED4BB7BCFEFC694AFE07" box="[421,520,380,404]" degrees="39.391" direction="south" orientation="latitude" pageId="8" pageNumber="257" precision="55" value="-39.391">39.391°S</geoCoordinate>
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<geoCoordinate id="EE245010FFC4ED4BB417FEFC69C0FE07" box="[526,642,380,404]" degrees="149.597" direction="east" orientation="longitude" pageId="8" pageNumber="257" precision="55" value="149.597">149.597°E</geoCoordinate>
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,
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<quantity id="4CE89B32FFC4ED4BB497FEFC699DFE07" box="[654,735,380,404]" metricMagnitude="3" metricUnit="m" metricValue="4.17" pageId="8" pageNumber="257" unit="m" value="4170.0">
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<elevation id="003DD1E4FFC4ED4BB497FEFC699DFE07" box="[654,735,380,404]" metricMagnitude="3" metricUnit="m" metricValue="4.17" pageId="8" pageNumber="257" unit="m" value="4170.0">4170 m</elevation>
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</quantity>
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(
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<collectionCode id="ED01AE12FFC4ED4BB4F4FEFC6858FE07" box="[749,794,380,404]" country="Australia" name="Australian Museum" pageId="8" pageNumber="257" type="Museum">AM</collectionCode>
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W.53524)
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</materialsCitation>
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.
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<materialsCitation id="3B783C8AFFC4ED4BB739FE1A6A51FE5C" collectingDate="2017-05-23" collectionCode="AM" country="Australia" county="Abyssal" elevation="4170" latitude="-39.391" location="Brenke" longLatPrecision="70" longitude="149.597" municipality="Bass Strait Marine Park" pageId="8" pageNumber="257" specimenCount="1" stateProvince="Victoria" typeStatus="paratype">
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<emphasis id="B964EAC5FFC4ED4BB739FE1A6AD0FE21" bold="true" box="[288,402,410,434]" pageId="8" pageNumber="257">
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<typeStatus id="54AB8875FFC4ED4BB739FE1A6AD0FE21" box="[288,402,410,434]" pageId="8" pageNumber="257" type="paratype">Paratypes</typeStatus>
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</emphasis>
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(3): same data as holotype (3,
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<collectionCode id="ED01AE12FFC4ED4BB4F6FE1A6858FE21" box="[751,794,410,434]" country="Australia" name="Australian Museum" pageId="8" pageNumber="257" type="Museum">AM</collectionCode>
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W.53525)
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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="C30A655CFFC4ED4BB6BFFE646FFFFF5E" pageId="8" pageNumber="257" type="description">
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<paragraph id="8BAF36D7FFC4ED4BB6BFFE646859FC04" blockId="8.[166,795,484,1916]" pageId="8" pageNumber="257">
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||
<emphasis id="B964EAC5FFC4ED4BB6BFFE646A6DFE6F" bold="true" box="[166,303,484,508]" pageId="8" pageNumber="257">Description</emphasis>
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. All specimens incomplete, including four anterior fragments and one posterior fragment.
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<typeStatus id="54AB8875FFC4ED4BB4AEFD826859FD89" box="[695,795,514,538]" pageId="8" pageNumber="257" type="holotype">Holotype</typeStatus>
|
||
largest specimen, with 60 setigers,
|
||
<quantity id="4CE89B32FFC4ED4BB43BFD9F69C3FDA5" box="[546,641,543,567]" metricMagnitude="-2" metricUnit="m" metricValue="1.06" pageId="8" pageNumber="257" unit="mm" value="10.6">10.6 mm</quantity>
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long,
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||
<quantity id="4CE89B32FFC4ED4BB4DEFD9F685BFDA5" box="[711,793,543,567]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="8" pageNumber="257" unit="mm" value="0.9">0.9 mm</quantity>
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wide across anterior setigers; largest
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<typeStatus id="54AB8875FFC4ED4BB44EFDBD69F5FDC6" box="[599,695,573,597]" pageId="8" pageNumber="257" type="paratype">paratype</typeStatus>
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with 25 setigers, 3.0 mm long, 1.0 wide. Body with thick, crowded segments along entire body (
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<figureCitation id="132B2A52FFC4ED4BB7C1FDF76912FD1C" box="[472,592,631,655]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Figs 5A–B</figureCitation>
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||
,
|
||
<figureCitation id="132B2A52FFC4ED4BB443FDF769D9FD1C" box="[602,667,631,655]" captionStart="Figure 6" captionStartId="10.[166,234,1766,1788]" captionTargetBox="[167,1467,151,1756]" captionTargetId="figure-5@10.[167,1467,151,1756]" captionTargetPageId="10" captionText="Figure 6. Chaetocirratulus glebalis sp. nov. Photomicrographs (A, C–D) paratype (AM W.53525); (B, E) holotype (AM W.53524). (A) anterior end, right lateral view; (B) anterior end, ventral view; (C) entire fragment, dorsal view; (D) same, left lateral view; (E) posterior segments, dorsal view. A–C, stained with Shirlastain A; D–E, stained with Methyl Green." figureDoi="http://doi.org/10.5281/zenodo.10414177" httpUri="https://zenodo.org/record/10414177/files/figure.png" pageId="8" pageNumber="257">6C–E</figureCitation>
|
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); individual segments up to ten times wider than long.Anterior segments with transverse lumpy dorsal ridge (
|
||
<figureCitation id="132B2A52FFC4ED4BB428FD3269CAFD5A" box="[561,648,689,714]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Fig. 5A</figureCitation>
|
||
), but without longitudinal grooves or ridges; venter with prominent mid-ventral ridge along entire body composed of broad medial bulge on each segment (
|
||
<figureCitation id="132B2A52FFC4ED4BB7D8FC8A695DFCB2" box="[449,543,777,802]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Figs 5B</figureCitation>
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,
|
||
<figureCitation id="132B2A52FFC4ED4BB436FC8A6910FCB1" box="[559,594,778,802]" captionStart="Figure 6" captionStartId="10.[166,234,1766,1788]" captionTargetBox="[167,1467,151,1756]" captionTargetId="figure-5@10.[167,1467,151,1756]" captionTargetPageId="10" captionText="Figure 6. Chaetocirratulus glebalis sp. nov. Photomicrographs (A, C–D) paratype (AM W.53525); (B, E) holotype (AM W.53524). (A) anterior end, right lateral view; (B) anterior end, ventral view; (C) entire fragment, dorsal view; (D) same, left lateral view; (E) posterior segments, dorsal view. A–C, stained with Shirlastain A; D–E, stained with Methyl Green." figureDoi="http://doi.org/10.5281/zenodo.10414177" httpUri="https://zenodo.org/record/10414177/files/figure.png" pageId="8" pageNumber="257">6B</figureCitation>
|
||
), connected mid-ventrally at intersegmental groove.
|
||
<specimenCount id="9D16FD5EFFC4ED4BB43CFCA769F7FCAC" box="[549,693,807,831]" count="1" pageId="8" pageNumber="257" type="generic" typeStatus="paratype">One paratype</specimenCount>
|
||
a mature female with large eggs in two swollen posteriormost setigers of fragment (
|
||
<figureCitation id="132B2A52FFC4ED4BB724FCE26AF8FCE9" box="[317,442,866,890]" captionStart="Figure 6" captionStartId="10.[166,234,1766,1788]" captionTargetBox="[167,1467,151,1756]" captionTargetId="figure-5@10.[167,1467,151,1756]" captionTargetPageId="10" captionText="Figure 6. Chaetocirratulus glebalis sp. nov. Photomicrographs (A, C–D) paratype (AM W.53525); (B, E) holotype (AM W.53524). (A) anterior end, right lateral view; (B) anterior end, ventral view; (C) entire fragment, dorsal view; (D) same, left lateral view; (E) posterior segments, dorsal view. A–C, stained with Shirlastain A; D–E, stained with Methyl Green." figureDoi="http://doi.org/10.5281/zenodo.10414177" httpUri="https://zenodo.org/record/10414177/files/figure.png" pageId="8" pageNumber="257">Fig. 6C–D</figureCitation>
|
||
). Eggs 160–200 µm in longest diameter. Colour in alcohol tan without any obvious pigment.
|
||
</paragraph>
|
||
<paragraph id="8BAF36D7FFC4ED4BB6DCFC1C69F2FAA2" blockId="8.[166,795,484,1916]" pageId="8" pageNumber="257">
|
||
Pre-setiger region broad, thickened, with prostomium curved ventrally, not visible in dorsal view (
|
||
<figureCitation id="132B2A52FFC4ED4BB48CFC3A684CFC42" box="[661,782,953,978]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Fig. 5A–B</figureCitation>
|
||
). Prostomium a short, pear-shaped lobe, broadly rounded across anterior margin (
|
||
<figureCitation id="132B2A52FFC4ED4BB7A1FC746954FB9F" box="[440,534,1012,1036]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Figs 5B</figureCitation>
|
||
,
|
||
<figureCitation id="132B2A52FFC4ED4BB43FFC74690BFB9F" box="[550,585,1012,1036]" captionStart="Figure 6" captionStartId="10.[166,234,1766,1788]" captionTargetBox="[167,1467,151,1756]" captionTargetId="figure-5@10.[167,1467,151,1756]" captionTargetPageId="10" captionText="Figure 6. Chaetocirratulus glebalis sp. nov. Photomicrographs (A, C–D) paratype (AM W.53525); (B, E) holotype (AM W.53524). (A) anterior end, right lateral view; (B) anterior end, ventral view; (C) entire fragment, dorsal view; (D) same, left lateral view; (E) posterior segments, dorsal view. A–C, stained with Shirlastain A; D–E, stained with Methyl Green." figureDoi="http://doi.org/10.5281/zenodo.10414177" httpUri="https://zenodo.org/record/10414177/files/figure.png" pageId="8" pageNumber="257">6B</figureCitation>
|
||
); eyespots absent; nuchal organs curved grooves on lateral margins (
|
||
<figureCitation id="132B2A52FFC4ED4BB4A3FB92684CFBBA" box="[698,782,1041,1066]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Fig. 5B</figureCitation>
|
||
). Peristomium with two irregularly-shaped rings, each with unique morphology: (1) anteriormost ring bulbous, encircling prostomium and mouth (
|
||
<figureCitation id="132B2A52FFC4ED4BB7BEFBEA6ABAFB12" box="[423,504,1129,1154]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Fig. 5B</figureCitation>
|
||
), bearing fan-shaped dorsal crest (
|
||
<figureCitation id="132B2A52FFC4ED4BB6F2FB076A0AFB0C" box="[235,328,1159,1183]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Figs 5A</figureCitation>
|
||
,
|
||
<figureCitation id="132B2A52FFC4ED4BB74FFB076ADFFB0C" box="[342,413,1159,1183]" captionStart="Figure 6" captionStartId="10.[166,234,1766,1788]" captionTargetBox="[167,1467,151,1756]" captionTargetId="figure-5@10.[167,1467,151,1756]" captionTargetPageId="10" captionText="Figure 6. Chaetocirratulus glebalis sp. nov. Photomicrographs (A, C–D) paratype (AM W.53525); (B, E) holotype (AM W.53524). (A) anterior end, right lateral view; (B) anterior end, ventral view; (C) entire fragment, dorsal view; (D) same, left lateral view; (E) posterior segments, dorsal view. A–C, stained with Shirlastain A; D–E, stained with Methyl Green." figureDoi="http://doi.org/10.5281/zenodo.10414177" httpUri="https://zenodo.org/record/10414177/files/figure.png" pageId="8" pageNumber="257">6A, C</figureCitation>
|
||
); (2) second ring consisting of an irregular series of lobes that overall merge with setiger 1; mid-dorsal lobe swollen, with a pair of grooves on anterior margin with notch containing scar representing origin of dorsal tentacles (
|
||
<figureCitation id="132B2A52FFC4ED4BB714FB7C6A1CFA87" box="[269,350,1276,1300]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Fig. 5A</figureCitation>
|
||
); ventral side with broad semi-circular crest extending posteriorly over setigers 1–2 (
|
||
<figureCitation id="132B2A52FFC4ED4BB449FA9A69E6FAA2" box="[592,676,1305,1330]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Fig. 5B</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BAF36D7FFC4ED4BB6DCFAB76ABDF8D2" blockId="8.[166,795,484,1916]" pageId="8" pageNumber="257">
|
||
Parapodia of anterior setigers elongate rounded lateral lobes from which setae emerge; reduced to narrow ridge in middle and posterior setigers (
|
||
<figureCitation id="132B2A52FFC4ED4BB40AFAF2692BFA1A" box="[531,617,1393,1418]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Fig. 5C</figureCitation>
|
||
); pre- and post-setal lobes entirely absent. Branchiae from setiger 1, dorsal to notosetae, continuing to at least mid-body; branchiae mostly missing, but represented by scars and stubs. Noto- and neurosetae include long thin capillaries throughout, including a few long natatory-like setae (
|
||
<figureCitation id="132B2A52FFC4ED4BB47BF98469F7F98F" box="[610,693,1540,1564]" captionStart="Figure 6" captionStartId="10.[166,234,1766,1788]" captionTargetBox="[167,1467,151,1756]" captionTargetId="figure-5@10.[167,1467,151,1756]" captionTargetPageId="10" captionText="Figure 6. Chaetocirratulus glebalis sp. nov. Photomicrographs (A, C–D) paratype (AM W.53525); (B, E) holotype (AM W.53524). (A) anterior end, right lateral view; (B) anterior end, ventral view; (C) entire fragment, dorsal view; (D) same, left lateral view; (E) posterior segments, dorsal view. A–C, stained with Shirlastain A; D–E, stained with Methyl Green." figureDoi="http://doi.org/10.5281/zenodo.10414177" httpUri="https://zenodo.org/record/10414177/files/figure.png" pageId="8" pageNumber="257">Fig. 6C</figureCitation>
|
||
) and few narrow acicular spines in far posterior setigers (
|
||
<figureCitation id="132B2A52FFC4ED4BB4AFF9A2684CF9AA" box="[694,782,1569,1594]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Fig. 5C</figureCitation>
|
||
). Capillaries of anterior setigers numbering
|
||
<quantity id="4CE89B32FFC4ED4BB47FF9BF69EBF9C4" box="[614,681,1599,1623]" metricMagnitude="-1" metricUnit="m" metricValue="1.778" metricValueMax="2.032" metricValueMin="1.524" pageId="8" pageNumber="257" unit="in" value="7.0" valueMax="8.0" valueMin="6.0">6–8 in</quantity>
|
||
notopodia and
|
||
<quantity id="4CE89B32FFC4ED4BB6C8F9DC6A62F9E7" box="[209,288,1628,1652]" metricMagnitude="-1" metricUnit="m" metricValue="2.413" metricValueMax="2.54" metricValueMin="2.286" pageId="8" pageNumber="257" unit="in" value="9.5" valueMax="10.0" valueMin="9.0">9–10 in</quantity>
|
||
neuropodia; middle setigers with 7–9 capillaries in notopodia and
|
||
<quantity id="4CE89B32FFC4ED4BB77FF9FA6AFBF901" box="[358,441,1658,1682]" metricMagnitude="-1" metricUnit="m" metricValue="2.286" metricValueMax="2.54" metricValueMin="2.032" pageId="8" pageNumber="257" unit="in" value="9.0" valueMax="10.0" valueMin="8.0">8–10 in</quantity>
|
||
neuropodia. Acicular spines not present in short
|
||
<typeStatus id="54AB8875FFC4ED4BB740F9176A80F93C" box="[345,450,1687,1711]" pageId="8" pageNumber="257" type="paratype">paratypes</typeStatus>
|
||
, but present from about setiger
|
||
<quantity id="4CE89B32FFC4ED4BB6BFF9346B9DF95F" box="[166,223,1716,1740]" metricMagnitude="0" metricUnit="m" metricValue="1.3969999999999998" pageId="8" pageNumber="257" unit="in" value="55.0">55 in</quantity>
|
||
<typeStatus id="54AB8875FFC4ED4BB6FEF9346A05F95F" box="[231,327,1716,1740]" pageId="8" pageNumber="257" type="holotype">holotype</typeStatus>
|
||
, with 2–3 spines in neuropodia and
|
||
<quantity id="4CE89B32FFC4ED4BB4CDF9346858F95F" box="[724,794,1716,1740]" metricMagnitude="-2" metricUnit="m" metricValue="1.27" metricValueMax="2.54" metricValueMin="0.0" pageId="8" pageNumber="257" unit="in" value="0.5" valueMax="1.0" valueMin="0.0">0–1 in</quantity>
|
||
notopodia. Posterior fragment with pre-pygidial segments with up to six spines in neuropodia and
|
||
<quantity id="4CE89B32FFC4ED4BB478F96F69E4F894" box="[609,678,1775,1799]" metricMagnitude="-2" metricUnit="m" metricValue="6.35" metricValueMax="7.62" metricValueMin="5.08" pageId="8" pageNumber="257" unit="in" value="2.5" valueMax="3.0" valueMin="2.0">2–3 in</quantity>
|
||
notopodia (
|
||
<figureCitation id="132B2A52FFC4ED4BB6B7F88C6BBDF8B7" box="[174,255,1804,1828]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Fig. 5C</figureCitation>
|
||
). Individual spines narrow, weakly curved, tapering to narrow rounded tip (
|
||
<figureCitation id="132B2A52FFC4ED4BB784F8AA6AB0F8D2" box="[413,498,1833,1858]" captionStart="Figure 5" captionStartId="9.[121,189,1928,1950]" captionTargetBox="[146,1404,180,1878]" captionTargetId="figure-10@9.[121,1421,151,1912]" captionTargetPageId="9" captionText="Figure 5. Chaetocirratulus glebalis sp. nov. (A–B) holotype (AM W.53524): (A) anterior end, dorsal view; (B) anterior end, ventral view. (C–D) paratype (AM W.53525): (C) posterior setiger, anterior view; (D) posterior neuroacicular spines." figureDoi="http://doi.org/10.5281/zenodo.10414175" httpUri="https://zenodo.org/record/10414175/files/figure.png" pageId="8" pageNumber="257">Fig. 5D</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BAF36D7FFC4ED4BB6DCF8C76B9EF8EF" blockId="8.[166,795,484,1916]" pageId="8" pageNumber="257">Posterior fragment narrowing to short conical pygidial lobe.</paragraph>
|
||
<paragraph id="8BAF36D7FFC4ED4BB6BFF8126859F854" blockId="8.[166,795,1937,1991]" pageId="8" pageNumber="257">
|
||
<emphasis id="B964EAC5FFC4ED4BB6BFF8126AF9F83A" bold="true" box="[166,443,1937,1962]" pageId="8" pageNumber="257">Methyl Green staining</emphasis>
|
||
. No general pattern, however intersegmental grooves retain stain to varying degrees (
|
||
<figureCitation id="132B2A52FFC4ED4BB4F6F82F6859F854" box="[751,795,1967,1991]" captionStart="Figure 6" captionStartId="10.[166,234,1766,1788]" captionTargetBox="[167,1467,151,1756]" captionTargetId="figure-5@10.[167,1467,151,1756]" captionTargetPageId="10" captionText="Figure 6. Chaetocirratulus glebalis sp. nov. Photomicrographs (A, C–D) paratype (AM W.53525); (B, E) holotype (AM W.53524). (A) anterior end, right lateral view; (B) anterior end, ventral view; (C) entire fragment, dorsal view; (D) same, left lateral view; (E) posterior segments, dorsal view. A–C, stained with Shirlastain A; D–E, stained with Methyl Green." figureDoi="http://doi.org/10.5281/zenodo.10414177" httpUri="https://zenodo.org/record/10414177/files/figure.png" pageId="8" pageNumber="257">Fig.</figureCitation>
|
||
</paragraph>
|
||
<paragraph id="8BAF36D7FFC4ED4BB55EFF176FFFFF5E" blockId="8.[839,1467,151,205]" pageId="8" pageNumber="257">6D–E, arrows), with dorsal surface of some middle and posterior segments staining lightly.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30A655CFFC4ED4BB55EFF626EF9FD8C" pageId="8" pageNumber="257" type="discussion">
|
||
<paragraph id="8BAF36D7FFC4ED4BB55EFF626EF9FD8C" blockId="8.[839,1467,226,543]" pageId="8" pageNumber="257">
|
||
<emphasis id="B964EAC5FFC4ED4BB55EFF6268EDFF69" bold="true" box="[839,943,226,250]" pageId="8" pageNumber="257">Remarks</emphasis>
|
||
.
|
||
<taxonomicName id="4C104D54FFC4ED4BB5A4FF626F8CFF69" authority="Blake, 2023" authorityName="Blake" authorityYear="2023" box="[957,1230,226,250]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="257" phylum="Annelida" rank="species" species="glebalis" status="sp. nov.">
|
||
<emphasis id="B964EAC5FFC4ED4BB5A4FF626F8CFF69" box="[957,1230,226,250]" italics="true" pageId="8" pageNumber="257">Chaetocirratulus glebalis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A25757BEFFC4ED4BB2CFFF636E6BFF69" box="[1238,1321,227,250]" pageId="8" pageNumber="257" rank="species">sp. nov.</taxonomicNameLabel>
|
||
is an entirely unique cirratulid in the nature of the numerous lobes and lumps on the pre-setiger region and on the body segments. The species is referred to
|
||
<taxonomicName id="4C104D54FFC4ED4BB278FEBA6E55FEC1" authorityName="Blake" authorityYear="2018" box="[1121,1303,314,338]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="257" phylum="Annelida" rank="genus">
|
||
<emphasis id="B964EAC5FFC4ED4BB278FEBA6E55FEC1" box="[1121,1303,314,338]" italics="true" pageId="8" pageNumber="257">Chaetocirratulus</emphasis>
|
||
</taxonomicName>
|
||
because of the relatively thickened body, short anteriorly rounded pre-setiger region and hidden nature of the prostomium. I know of no other cirratulids from deep water or shallower depths with a similar appearance. The morphology and arrangement of the acicular spines is, however, similar to some species of
|
||
<taxonomicName id="4C104D54FFC4ED4BB57CFE6A68A1FD91" authorityName="Malmgren" authorityYear="1867" box="[869,995,490,514]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="257" phylum="Annelida" rank="genus">
|
||
<emphasis id="B964EAC5FFC4ED4BB57CFE6A68A1FD91" box="[869,995,490,514]" italics="true" pageId="8" pageNumber="257">Chaetozone</emphasis>
|
||
</taxonomicName>
|
||
, except that posterior segments do not have cinctures and the spines are not large nor sigmoid in shape.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30A655CFFC4ED4BB55EFDB56F4BFCA4" pageId="8" pageNumber="257" type="biology_ecology">
|
||
<paragraph id="8BAF36D7FFC4ED4BB55EFDB56F4BFCA4" blockId="8.[839,1467,565,823]" pageId="8" pageNumber="257">
|
||
<emphasis id="B964EAC5FFC4ED4BB55EFDB568DFFDDE" bold="true" box="[839,925,565,589]" pageId="8" pageNumber="257">Biology</emphasis>
|
||
. The large protruding eggs (160–200 µm) on the
|
||
<typeStatus id="54AB8875FFC4ED4BB55EFDD368E5FDF8" box="[839,935,595,619]" pageId="8" pageNumber="257" type="paratype">paratype</typeStatus>
|
||
suggest direct or lecithotrophic development, which would be expected for an abyssal species. However, long natatory-like capillaries might suggest a mechanism for movement at the sediment-water interface at the time of spawning. The short, blunted pre-setiger region suggests that the species burrows by pushing particles out the way and opening cracks in the sediment rather than moving between particles.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30A655CFFC4ED4BB55EFCCD68A4FC0C" pageId="8" pageNumber="257" type="etymology">
|
||
<paragraph id="8BAF36D7FFC4ED4BB55EFCCD68A4FC0C" blockId="8.[839,1466,845,927]" pageId="8" pageNumber="257">
|
||
<emphasis id="B964EAC5FFC4ED4BB55EFCCD6880FCF6" bold="true" box="[839,962,845,869]" pageId="8" pageNumber="257">Etymology</emphasis>
|
||
. The epithet is from the Latin,
|
||
<emphasis id="B964EAC5FFC4ED4BB30DFCCD6E0DFCF6" box="[1300,1359,845,869]" italics="true" pageId="8" pageNumber="257">gleba</emphasis>
|
||
for lump, in reference to the lumpy segmental appearance of the body of this species.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30A655CFFC4ED4BB55EFC356F1DFC79" pageId="8" pageNumber="257" type="distribution">
|
||
<paragraph id="8BAF36D7FFC4ED4BB55EFC356F1DFC79" blockId="8.[839,1467,949,1002]" pageId="8" pageNumber="257">
|
||
<emphasis id="B964EAC5FFC4ED4BB55EFC356893FC5E" bold="true" box="[839,977,949,973]" pageId="8" pageNumber="257">Distribution</emphasis>
|
||
. Abyssal plain between
|
||
<collectingRegion id="49D4F835FFC4ED4BB2D2FC356E62FC5E" box="[1227,1312,949,973]" country="Australia" name="Victoria" pageId="8" pageNumber="257">Victoria</collectingRegion>
|
||
and
|
||
<collectingRegion id="49D4F835FFC4ED4BB356FC356EF5FC5E" box="[1359,1463,949,973]" country="Australia" name="Tasmania" pageId="8" pageNumber="257">Tasmania</collectingRegion>
|
||
, eastern
|
||
<collectingCountry id="F3077647FFC4ED4BB581FC5268BFFC79" box="[920,1021,978,1002]" name="Australia" pageId="8" pageNumber="257">Australia</collectingCountry>
|
||
,
|
||
<quantity id="4CE89B32FFC4ED4BB21EFC526F19FC79" box="[1031,1115,978,1002]" metricMagnitude="3" metricUnit="m" metricValue="4.17" pageId="8" pageNumber="257" unit="m" value="4170.0">4170 m</quantity>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |