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<document id="E26717D9B900312E1EA3CBFA5533BF37" 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="03B987C1FFCEED46B5ACF9EF6F60F8D8" 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="Aphelochaeta readi Blake 2023, sp. nov." docType="treatment" docUuid="8E09CD78-35D3-46EE-8BEB-5DE6E5C4F55E" docUuidSource="ZooBank" docVersion="2" lastPageNumber="254" masterDocId="FF80FFB9FFCCED43B619FF806B42FF93" masterDocTitle="New Species of Cirratulidae (Annelida) from Continental Slope and Abyssal Depths off Eastern Australia" masterLastPageNumber="270" masterPageNumber="249" pageNumber="251" updateTime="1703110597725" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
<mods:mods id="CB4D3780DB11CBED833BBCA24124AD1D" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="F225645635546C4AF60BF3EA960526CD">
<mods:title id="173CAE1860660B2A01AE64A4DEAEBC98">New Species of Cirratulidae (Annelida) from Continental Slope and Abyssal Depths off Eastern Australia</mods:title>
</mods:titleInfo>
<mods:name id="2E6A6DF3740BCFA3C6DE3E7528EF4725" type="personal">
<mods:role id="F94F4A589EE91C40E4364ED0780A95F7">
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</mods:role>
<mods:namePart id="B1360AC1ECC24DDEE538460D0C63DD26">Blake, James A.</mods:namePart>
</mods:name>
<mods:typeOfResource id="2DB23707A04ECCC345CDA7691249A68D">text</mods:typeOfResource>
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<mods:title id="96B7A313B22D6E442644506EA32D0B0D">Records of the Australian Museum</mods:title>
</mods:titleInfo>
<mods:part id="8443E67A719E9854FE0BEEDB69459A54">
<mods:date id="A6F92F538E03C998CBDCD085B9527B5F">2023</mods:date>
<mods:detail id="D4550F4728F04B7B96EECA624B780501" type="series">
<mods:title id="68A21E87FD491E2B0ED81D74AF0876E0">Rec. Aust. Mus.</mods:title>
</mods:detail>
<mods:detail id="E6CB561A1CD7249BB65A10806B5D3232" type="pubDate">
<mods:number id="8B73AAE11AD75AAD1FC9ACE54A61F3C7">2023-05-17</mods:number>
</mods:detail>
<mods:detail id="69FBCBCB1329C3C9528605243E0C2EA1" type="volume">
<mods:number id="155D0FC07B2794454FEFF9D1637F7EBB">75</mods:number>
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<mods:detail id="6A0CD23A8E60345235A387F99F99CBC2" type="issue">
<mods:number id="C93BB7A076A11F6EAA1C4A2E320C1BDD">3</mods:number>
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<mods:start id="E9FAFF69E782D6D3BB3E7C40338AB210">249</mods:start>
<mods:end id="CF47DEDAE59B899AAC09061A4FAAFE94">270</mods:end>
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<mods:location id="5F39B02568541936DFA50C90877F1982">
<mods:url id="846390E22781D332925E7799D77E70F3">http://dx.doi.org/10.3853/j.2201-4349.75.2023.1799</mods:url>
</mods:location>
<mods:classification id="806090195FF84757A9FEC586DE64267E">journal article</mods:classification>
<mods:identifier id="4DA735C7356775E768ECEF279605F941" type="DOI">10.3853/j.2201-4349.75.2023.1799</mods:identifier>
<mods:identifier id="0B20AC426847CADF38FBC9A6587B4986" type="ISSN">2201-4349</mods:identifier>
<mods:identifier id="5F1478D67EBB17766C2207A8420D085A" type="Zenodo-Dep">10414165</mods:identifier>
<mods:identifier id="0A773B37DC45EF4C90B9E974F1679DA1" type="ZooBank">7D3BDF25-010F-41A4-AD15-763C3F067D8A</mods:identifier>
</mods:mods>
<treatment id="03B987C1FFCEED46B5ACF9EF6F60F8D8" LSID="urn:lsid:zoobank.org:act:8E09CD78-35D3-46EE-8BEB-5DE6E5C4F55E" httpUri="http://treatment.plazi.org/id/03B987C1FFCEED46B5ACF9EF6F60F8D8" lastPageId="5" lastPageNumber="254" pageId="2" pageNumber="251">
<subSubSection id="C30A655CFFCEED41B5ACF9EF6EF2F921" pageId="2" pageNumber="251" type="nomenclature">
<paragraph id="8BAF36D7FFCEED41B5ACF9EF6E0EF91C" blockId="2.[949,1356,1647,1679]" box="[949,1356,1647,1679]" pageId="2" pageNumber="251">
<heading id="D0E781BBFFCEED41B5ACF9EF6E0EF91C" bold="true" box="[949,1356,1647,1679]" centered="true" fontSize="12" level="2" pageId="2" pageNumber="251" reason="2">
<emphasis id="B964EAC5FFCEED41B5ACF9EF6E0EF91C" bold="true" box="[949,1356,1647,1679]" pageId="2" pageNumber="251">
<taxonomicName id="4C104D54FFCEED41B5ACF9EF6F90F91D" ID-CoL="BDS5S" authority="Blake, 2023" authorityName="Blake" authorityYear="2023" box="[949,1234,1647,1678]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="2" pageNumber="251" phylum="Annelida" rank="species" species="readi" status="sp. nov.">
<emphasis id="B964EAC5FFCEED41B5ACF9EF6F90F91D" bold="true" box="[949,1234,1647,1678]" italics="true" pageId="2" pageNumber="251">Aphelochaeta readi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25757BEFFCEED41B2C2F9F06E0EF91C" box="[1243,1356,1648,1679]" pageId="2" pageNumber="251" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BAF36D7FFCEED41B548F9206EF2F921" blockId="2.[849,1456,1696,1714]" box="[849,1456,1696,1714]" pageId="2" pageNumber="251">
<uri id="FF813AD5FFCEED41B548F9206EF2F921" box="[849,1456,1696,1714]" pageId="2" pageNumber="251">
urn:lsid:zoobank.org:act:
<uuid id="FFB60C02FFCEED41B206F9206EF2F921" box="[1055,1456,1696,1714]" pageId="2" pageNumber="251">8E09CD78-35D3-46EE-8BEB-5DE6E5C4F55E</uuid>
</uri>
</paragraph>
</subSubSection>
<subSubSection id="C30A655CFFCEED41B254F94F6FF7F97A" box="[1101,1205,1743,1769]" pageId="2" pageNumber="251" type="description">
<paragraph id="8BAF36D7FFCEED41B254F94F6FF7F97A" blockId="2.[1101,1205,1743,1769]" box="[1101,1205,1743,1769]" pageId="2" pageNumber="251">
<figureCitation id="132B2A52FFCEED41B254F94F6FF7F97A" box="[1101,1205,1743,1769]" captionStart-0="Figure 2" captionStart-1="Figure 3" captionStartId-0="4.[166,234,1433,1455]" captionStartId-1="5.[121,189,1374,1396]" captionTargetBox-0="[192,1435,159,1410]" captionTargetBox-1="[121,1421,151,1361]" captionTargetId-0="figure-5@4.[166,1466,123,1441]" captionTargetId-1="figure-135@5.[121,1421,151,1361]" captionTargetPageId-0="4" captionTargetPageId-1="5" captionText-0="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." captionText-1="Figure 3. Aphelochaeta readi sp. nov. (A–B), photomicrographs of holotype (AM W.52714): (A) entire worm, dorsal view; (B) anterior end, dorsal view." figureDoi-0="http://doi.org/10.5281/zenodo.10414169" figureDoi-1="http://doi.org/10.5281/zenodo.10414171" httpUri-0="https://zenodo.org/record/10414169/files/figure.png" httpUri-1="https://zenodo.org/record/10414171/files/figure.png" pageId="2" pageNumber="251">Figs 2–3</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="C30A655CFFCEED41B55EF97E6E1CF8FD" pageId="2" pageNumber="251" type="materials_examined">
<paragraph id="8BAF36D7FFCEED41B55EF97E6E1CF8FD" blockId="2.[839,1467,1790,1902]" pageId="2" pageNumber="251">
<materialsCitation id="3B783C8AFFCEED41B55EF97E6E1CF8FD" collectingDate="2017-06-08" collectionCode="RV, AM" country="Australia" county="Abyssal" elevation="3811" latitude="-28.389" location="Brenke" longLatPrecision="73" longitude="154.612" municipality="Byron Bay" pageId="2" pageNumber="251" specimenCount="1" stateProvince="New South Wales" typeStatus="holotype">
<emphasis id="B964EAC5FFCEED41B55EF97E68EFF885" bold="true" box="[839,941,1790,1814]" pageId="2" pageNumber="251">
<typeStatus id="54AB8875FFCEED41B55EF97E68EFF885" box="[839,941,1790,1814]" pageId="2" pageNumber="251" type="holotype">Holotype</typeStatus>
</emphasis>
:
<collectingCounty id="62CE4E5BFFCEED41B5AEF97E6F4EF885" box="[951,1036,1790,1814]" pageId="2" pageNumber="251">Abyssal</collectingCounty>
plain off eastern
<collectingCountry id="F3077647FFCEED41B2A1F97E6E58F885" box="[1208,1306,1790,1814]" name="Australia" pageId="2" pageNumber="251">Australia</collectingCountry>
, off
<collectingMunicipality id="6BCBACADFFCEED41B35CF97E6EF4F885" box="[1349,1462,1790,1814]" pageId="2" pageNumber="251">Byron Bay</collectingMunicipality>
,
<collectingRegion id="49D4F835FFCEED41B55EF89C6F49F8A0" box="[839,1035,1819,1843]" country="Australia" name="New South Wales" pageId="2" pageNumber="251">New South Wales</collectingRegion>
,
<collectionCode id="ED01AE12FFCEED41B201F89C6F78F8A0" box="[1048,1082,1820,1843]" country="Italy" name="Collection of Leptospira Strains" pageId="2" pageNumber="251">RV</collectionCode>
<taxonomicName id="4C104D54FFCEED41B25AF89C6FBFF8A0" authority=", Sta." authorityName="Sta." box="[1091,1277,1819,1843]" class="Actinopterygii" family="Nemichthyidae" genus="Investigator" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anguilliformes" pageId="2" pageNumber="251" phylum="Chordata" rank="genus">
<emphasis id="B964EAC5FFCEED41B25AF89C6F86F8A0" box="[1091,1220,1820,1843]" italics="true" pageId="2" pageNumber="251">Investigator</emphasis>
, Sta.
</taxonomicName>
098, coll.
<date id="FFAE1017FFCEED41B36DF89B683DF8C2" pageId="2" pageNumber="251" value="2017-06-08">
<collectingDate id="EFEAE9FFFFCEED41B36DF89B683DF8C2" pageId="2" pageNumber="251" value="2017-06-08">8 June 2017</collectingDate>
</date>
,
<location id="8ECF600CFFCEED41B593F8B96895F8C2" LSID="urn:lsid:plazi:treatment:03B987C1FFCEED46B5ACF9EF6F60F8D8:8ECF600CFFCEED41B593F8B96895F8C2" box="[906,983,1849,1873]" country="Australia" county="Abyssal" latitude="-28.389" longLatPrecision="73" longitude="154.612" municipality="Byron Bay" name="Brenke" pageId="2" pageNumber="251" stateProvince="New South Wales">Brenke</location>
sledge, start
<geoCoordinate id="EE245010FFCEED41B27CF8B96F8AF8C2" box="[1125,1224,1849,1873]" degrees="28.371" direction="south" orientation="latitude" pageId="2" pageNumber="251" precision="55" value="-28.371">28.371°S</geoCoordinate>
<geoCoordinate id="EE245010FFCEED41B2D6F8B86E01F8C3" box="[1231,1347,1848,1872]" degrees="154.647" direction="east" orientation="longitude" pageId="2" pageNumber="251" precision="55" value="154.647">154.647°E</geoCoordinate>
,
<quantity id="4CE89B32FFCEED41B357F8B96EDDF8C3" box="[1358,1439,1849,1873]" metricMagnitude="3" metricUnit="m" metricValue="3.811" pageId="2" pageNumber="251" unit="m" value="3811.0">
<elevation id="003DD1E4FFCEED41B357F8B96EDDF8C3" box="[1358,1439,1849,1873]" metricMagnitude="3" metricUnit="m" metricValue="3.811" pageId="2" pageNumber="251" unit="m" value="3811.0">3811 m</elevation>
</quantity>
to end
<geoCoordinate id="EE245010FFCEED41B56DF8D66895F8FD" box="[884,983,1878,1902]" degrees="28.389" direction="south" orientation="latitude" pageId="2" pageNumber="251" precision="55" value="-28.389">28.389°S</geoCoordinate>
<geoCoordinate id="EE245010FFCEED41B5C7F8D66F10F8FD" box="[990,1106,1878,1902]" degrees="154.612" direction="east" orientation="longitude" pageId="2" pageNumber="251" precision="55" value="154.612">154.612°E</geoCoordinate>
,
<quantity id="4CE89B32FFCEED41B244F8D66FECF8FE" box="[1117,1198,1878,1902]" metricMagnitude="3" metricUnit="m" metricValue="3.754" pageId="2" pageNumber="251" unit="m" value="3754.0">
<elevation id="003DD1E4FFCEED41B244F8D66FECF8FE" box="[1117,1198,1878,1902]" metricMagnitude="3" metricUnit="m" metricValue="3.754" pageId="2" pageNumber="251" unit="m" value="3754.0">3754 m</elevation>
</quantity>
(
<collectionCode id="ED01AE12FFCEED41B2A2F8D66FAAF8FD" box="[1211,1256,1878,1902]" country="Australia" name="Australian Museum" pageId="2" pageNumber="251" type="Museum">AM</collectionCode>
W.52714).
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="C30A655CFFCEED47B55EF8036FFCF840" lastPageId="4" lastPageNumber="253" pageId="2" pageNumber="251" type="description">
<paragraph id="8BAF36D7FFCEED47B55EF8036A1FF9C5" blockId="2.[839,1467,1923,2006]" lastBlockId="4.[166,795,1510,2004]" lastPageId="4" lastPageNumber="253" pageId="2" pageNumber="251">
<emphasis id="B964EAC5FFCEED41B55EF803688DF808" bold="true" box="[839,975,1923,1947]" pageId="2" pageNumber="251">Description</emphasis>
. A small species,
<typeStatus id="54AB8875FFCEED41B2BCF8036E47F808" box="[1189,1285,1923,1947]" pageId="2" pageNumber="251" type="holotype">holotype</typeStatus>
only specimen, complete with 28 setigers,
<quantity id="4CE89B32FFCEED41B27EF8216FFBF82B" box="[1127,1209,1953,1977]" metricMagnitude="-3" metricUnit="m" metricValue="3.2" pageId="2" pageNumber="251" unit="mm" value="3.2">3.2 mm</quantity>
long and
<quantity id="4CE89B32FFCEED41B33BF8216EC3F82B" box="[1314,1409,1953,1977]" metricMagnitude="-4" metricUnit="m" metricValue="4.699999999999999" pageId="2" pageNumber="251" unit="mm" value="0.47">0.47 mm</quantity>
wide across anterior setigers. Body expanded over first nine setigers, then narrowing to consistent width along rest of body (
<figureCitation id="132B2A52FFCFED40B6A2F8F86A50F803" box="[187,274,1912,1936]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="3" pageNumber="252">Figs 2A</figureCitation>
,
<figureCitation id="132B2A52FFCFED40B702F8F86A7DF803" box="[283,319,1912,1936]" captionStart="Figure 3" captionStartId="5.[121,189,1374,1396]" captionTargetBox="[121,1421,151,1361]" captionTargetId="figure-135@5.[121,1421,151,1361]" captionTargetPageId="5" captionText="Figure 3. Aphelochaeta readi sp. nov. (A–B), photomicrographs of holotype (AM W.52714): (A) entire worm, dorsal view; (B) anterior end, dorsal view." figureDoi="http://doi.org/10.5281/zenodo.10414171" httpUri="https://zenodo.org/record/10414171/files/figure.png" pageId="3" pageNumber="252">3A</figureCitation>
). First 8–9 individual setigers short, each 11–12 times wider than long, following segments longer, about three times wider than long (
<figureCitation id="132B2A52FFCFED40B7E0F8336910F858" box="[505,594,1971,1995]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="3" pageNumber="252">Fig. 2A</figureCitation>
); far posterior segments becoming rounded, weakly moniliform (
<figureCitation id="132B2A52FFCFED40B494F85069A3F87B" box="[653,737,2000,2024]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="3" pageNumber="252">Fig. 2C</figureCitation>
). Each segment separated from following by relatively deep intersegmental grooves. Dorsal surface of all segments smooth without dorsal longitudinal grooves or ridges. Ventral surface of body with prominent mid-ventral ridge line composed of transverse raised ridges that together form a line of ridges along body (
<figureCitation id="132B2A52FFC8ED47B400FA66692DFA6D" box="[537,623,1510,1534]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="4" pageNumber="253">Fig. 2B</figureCitation>
); ventral ridges of anterior setigers about half as wide as ventral surface, narrowing to short ridge in posterior segments. Colour in alcohol light tan.
</paragraph>
<caption id="DF6F665FFFCFED40B660F8886F2FF8AA" ID-DOI="http://doi.org/10.5281/zenodo.10414167" ID-Zenodo-Dep="10414167" httpUri="https://zenodo.org/record/10414167/files/figure.png" pageId="3" pageNumber="252" startId="3.[121,189,1800,1822]" targetBox="[157,1388,149,1768]" targetPageId="3" targetType="figure">
<paragraph id="8BAF36D7FFCFED40B660F8886F2FF8AA" blockId="3.[121,1422,1800,1849]" pageId="3" pageNumber="252">
<emphasis id="B964EAC5FFCFED40B660F8886B92F88E" bold="true" box="[121,208,1800,1822]" pageId="3" pageNumber="252">Figure 1</emphasis>
.
<taxonomicName id="4C104D54FFCFED40B6FDF8886AEEF88E" authority="Blake, 2023" authorityName="Blake" authorityYear="2023" box="[228,428,1800,1821]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="3" pageNumber="252" phylum="Annelida" rank="species" species="jubata" status="sp. nov.">
<emphasis id="B964EAC5FFCFED40B6FDF8886AEEF88E" box="[228,428,1800,1821]" italics="true" pageId="3" pageNumber="252">Aphelochaeta jubata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25757BEFFCFED40B7ADF8886942F88E" box="[436,512,1800,1821]" pageId="3" pageNumber="252" rank="species">sp. nov.</taxonomicNameLabel>
(
<emphasis id="B964EAC5FFCFED40B417F8886975F88E" box="[526,567,1800,1821]" italics="true" pageId="3" pageNumber="252">A–B</emphasis>
) holotype (AM W.52706): (
<emphasis id="B964EAC5FFCFED40B552F8886818F88E" box="[843,858,1800,1821]" italics="true" pageId="3" pageNumber="252">A</emphasis>
) anterior end, dorsal view; (
<emphasis id="B964EAC5FFCFED40B268F8896FC2F88D" box="[1137,1152,1801,1822]" italics="true" pageId="3" pageNumber="252">B</emphasis>
) anterior end, ventral view. (
<emphasis id="B964EAC5FFCFED40B698F8A36BECF8AB" box="[129,174,1827,1848]" italics="true" pageId="3" pageNumber="252">C–D</emphasis>
) paratype (AM W.53523): anterior end, left lateral view; (
<emphasis id="B964EAC5FFCFED40B4C6F8A369B2F8AB" box="[735,752,1827,1848]" italics="true" pageId="3" pageNumber="252">D</emphasis>
) abdominal parapodium, anterior view.
</paragraph>
</caption>
<caption id="DF6F665FFFC8ED47B6BFFA196A8EFA5A" ID-DOI="http://doi.org/10.5281/zenodo.10414169" ID-Zenodo-Dep="10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="4" pageNumber="253" startId="4.[166,234,1433,1455]" targetBox="[192,1435,159,1410]" targetPageId="4" targetType="figure">
<paragraph id="8BAF36D7FFC8ED47B6BFFA196A8EFA5A" blockId="4.[166,1466,1433,1481]" pageId="4" pageNumber="253">
<emphasis id="B964EAC5FFC8ED47B6BFFA196BB9FA3D" bold="true" box="[166,251,1433,1455]" pageId="4" pageNumber="253">Figure 2</emphasis>
.
<taxonomicName id="4C104D54FFC8ED47B712FA196A84FA3D" authority="Blake, 2023" authorityName="Blake" authorityYear="2023" box="[267,454,1433,1454]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="4" pageNumber="253" phylum="Annelida" rank="species" species="readi" status="sp. nov.">
<emphasis id="B964EAC5FFC8ED47B712FA196A84FA3D" box="[267,454,1433,1454]" italics="true" pageId="4" pageNumber="253">Aphelochaeta readi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25757BEFFC8ED47B7D5FA196954FA3D" box="[460,534,1433,1454]" pageId="4" pageNumber="253" rank="species">sp. nov.</taxonomicNameLabel>
(
<emphasis id="B964EAC5FFC8ED47B43AFA19690FFA3D" box="[547,589,1433,1454]" italics="true" pageId="4" pageNumber="253">A–C</emphasis>
), holotype (AM W.52714): (
<emphasis id="B964EAC5FFC8ED47B579FA19682DFA3D" box="[864,879,1433,1454]" italics="true" pageId="4" pageNumber="253">A</emphasis>
) anterior end, dorsal view; (
<emphasis id="B964EAC5FFC8ED47B264FA196FCEFA3D" box="[1149,1164,1433,1454]" italics="true" pageId="4" pageNumber="253">B</emphasis>
) anterior end, ventral view; (
<emphasis id="B964EAC5FFC8ED47B3BBFA196EF0FA3D" box="[1442,1458,1433,1454]" italics="true" pageId="4" pageNumber="253">C</emphasis>
) posterior end, left lateral view.
</paragraph>
</caption>
<paragraph id="8BAF36D7FFC8ED47B6DCF9DB689CF9AA" blockId="4.[166,795,1510,2004]" lastBlockId="4.[839,1467,1510,1886]" pageId="4" pageNumber="253">
Pre-setiger region relatively short, thickened, about as long as first six setigers (
<figureCitation id="132B2A52FFC8ED47B7FBF9F96979F902" box="[482,571,1657,1681]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="4" pageNumber="253">Fig. 2A</figureCitation>
). Prostomium short, pear-shaped, tapering to narrow tip (
<figureCitation id="132B2A52FFC8ED47B427F91669F9F93D" box="[574,699,1686,1710]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="4" pageNumber="253">Figs 2A–B</figureCitation>
,
<figureCitation id="132B2A52FFC8ED47B4D0F916684FF93D" box="[713,781,1686,1710]" captionStart="Figure 3" captionStartId="5.[121,189,1374,1396]" captionTargetBox="[121,1421,151,1361]" captionTargetId="figure-135@5.[121,1421,151,1361]" captionTargetPageId="5" captionText="Figure 3. Aphelochaeta readi sp. nov. (A–B), photomicrographs of holotype (AM W.52714): (A) entire worm, dorsal view; (B) anterior end, dorsal view." figureDoi="http://doi.org/10.5281/zenodo.10414171" httpUri="https://zenodo.org/record/10414171/files/figure.png" pageId="4" pageNumber="253">3A–B</figureCitation>
); eyespots absent; nuchal organs not observed. Peristomium with three annular rings and one narrow achaetous segment, all complete dorsally (
<figureCitation id="132B2A52FFC8ED47B781F96E6AADF895" box="[408,495,1774,1798]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="4" pageNumber="253">Fig. 2A</figureCitation>
); these all merged ventrally providing smooth ventral surface from anterior margin of peristomium to setiger 1 (
<figureCitation id="132B2A52FFC8ED47B7FFF8A9697FF8D2" box="[486,573,1833,1857]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="4" pageNumber="253">Fig. 2B</figureCitation>
). Mouth of opening anteriorly, visible only in frontal view, a only visible ventrally as narrow slit between first peristomial ring and prostomium. Dorsal tentacles arise from middle of third peristomial ring (
<figureCitation id="132B2A52FFC8ED47B6B7F81E6A40F825" box="[174,258,1950,1974]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="4" pageNumber="253">Fig. 2A</figureCitation>
); first pair of branchiae arises on achaetous segment anterior to setiger 1; subsequent branchiae arise on posterior margin of individual segments dorsal to notosetae (
<figureCitation id="132B2A52FFC8ED47B342FA666EEDFA6D" box="[1371,1455,1510,1534]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="4" pageNumber="253">Fig. 2A</figureCitation>
). All branchiae missing or broken, represented only by scars or short stubs.
</paragraph>
<paragraph id="8BAF36D7FFC8ED47B57CF9BE6FCAF8B0" blockId="4.[839,1467,1510,1886]" pageId="4" pageNumber="253">
Parapodia relatively simple throughout, not producing prominent lobes or shoulders anywhere along body; setae arising directly from body wall (
<figureCitation id="132B2A52FFC8ED47B28AF9F96E4AF902" box="[1171,1288,1657,1681]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="4" pageNumber="253">Figs 2A–B</figureCitation>
,
<figureCitation id="132B2A52FFC8ED47B308F9F96E16F902" box="[1297,1364,1657,1681]" captionStart="Figure 3" captionStartId="5.[121,189,1374,1396]" captionTargetBox="[121,1421,151,1361]" captionTargetId="figure-135@5.[121,1421,151,1361]" captionTargetPageId="5" captionText="Figure 3. Aphelochaeta readi sp. nov. (A–B), photomicrographs of holotype (AM W.52714): (A) entire worm, dorsal view; (B) anterior end, dorsal view." figureDoi="http://doi.org/10.5281/zenodo.10414171" httpUri="https://zenodo.org/record/10414171/files/figure.png" pageId="4" pageNumber="253">3A–B</figureCitation>
). Pre- and post-setal lobes or lamellae entirely absent. Setae all smooth capillaries, not limbate or granulated; fimbriated borders not present. Anterior and middle setigers with 8–9 capillaries in notopodia and
<quantity id="4CE89B32FFC8ED47B5F9F96E6F63F895" box="[992,1057,1774,1798]" metricMagnitude="-1" metricUnit="m" metricValue="1.651" metricValueMax="1.778" metricValueMin="1.524" pageId="4" pageNumber="253" unit="in" value="6.5" valueMax="7.0" valueMin="6.0">6–7 in</quantity>
neuropodia; posterior setigers with 3–4 notosetae and 4–5 neurosetae.
</paragraph>
<paragraph id="8BAF36D7FFC8ED47B57CF8A96F88F8CD" blockId="4.[839,1467,1510,1886]" pageId="4" pageNumber="253">
Pygidial segment elongate, with anal opening terminal; without anal lobes or cirri (
<figureCitation id="132B2A52FFC8ED47B270F8C66FFCF8CD" box="[1129,1214,1862,1886]" captionStart="Figure 2" captionStartId="4.[166,234,1433,1455]" captionTargetBox="[192,1435,159,1410]" captionTargetId="figure-5@4.[166,1466,123,1441]" captionTargetPageId="4" captionText="Figure 2. Aphelochaeta readi sp. nov. (A–C), holotype (AM W.52714): (A) anterior end, dorsal view; (B) anterior end, ventral view; (C) posterior end, left lateral view." figureDoi="http://doi.org/10.5281/zenodo.10414169" httpUri="https://zenodo.org/record/10414169/files/figure.png" pageId="4" pageNumber="253">Fig. 2C</figureCitation>
).
</paragraph>
<paragraph id="8BAF36D7FFC8ED47B55EF8016FFCF840" blockId="4.[839,1467,1921,2003]" pageId="4" pageNumber="253">
<emphasis id="B964EAC5FFC8ED47B55EF8016F04F80A" bold="true" box="[839,1094,1921,1945]" pageId="4" pageNumber="253">Methyl Green staining</emphasis>
. Weak stain on prostomium and in intersegmental areas of anterior segments where subdermal glands occur; otherwise no pattern.
</paragraph>
</subSubSection>
<caption id="DF6F665FFFC9ED46B660FADE6A5EFA1C" ID-DOI="http://doi.org/10.5281/zenodo.10414171" ID-Zenodo-Dep="10414171" httpUri="https://zenodo.org/record/10414171/files/figure.png" pageId="5" pageNumber="254" startId="5.[121,189,1374,1396]" targetBox="[121,1421,151,1361]" targetPageId="5" targetType="figure">
<paragraph id="8BAF36D7FFC9ED46B660FADE6A5EFA1C" blockId="5.[121,1421,1374,1423]" pageId="5" pageNumber="254">
<emphasis id="B964EAC5FFC9ED46B660FADE6B8CFAE0" bold="true" box="[121,206,1374,1396]" pageId="5" pageNumber="254">Figure 3</emphasis>
.
<taxonomicName id="4C104D54FFC9ED46B6F9FADE6ADEFAE0" authority="Blake, 2023" authorityName="Blake" authorityYear="2023" box="[224,412,1374,1395]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="254" phylum="Annelida" rank="species" species="readi" status="sp. nov.">
<emphasis id="B964EAC5FFC9ED46B6F9FADE6ADEFAE0" box="[224,412,1374,1395]" italics="true" pageId="5" pageNumber="254">Aphelochaeta readi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25757BEFFC9ED46B7B8FADF6AAEFAE7" box="[417,492,1375,1396]" pageId="5" pageNumber="254" rank="species">sp. nov.</taxonomicNameLabel>
(
<emphasis id="B964EAC5FFC9ED46B7E0FADE6960FAE0" box="[505,546,1374,1395]" italics="true" pageId="5" pageNumber="254">A–B</emphasis>
), photomicrographs of holotype (AM W.52714): (
<emphasis id="B964EAC5FFC9ED46B21CFADE6F56FAE0" box="[1029,1044,1374,1395]" italics="true" pageId="5" pageNumber="254">A</emphasis>
) entire worm, dorsal view; (
<emphasis id="B964EAC5FFC9ED46B33FFADF6E77FAE7" box="[1318,1333,1375,1396]" italics="true" pageId="5" pageNumber="254">B</emphasis>
) anterior end, dorsal view.
</paragraph>
</caption>
<subSubSection id="C30A655CFFC9ED46B660FA54691BF8DF" pageId="5" pageNumber="254" type="discussion">
<paragraph id="8BAF36D7FFC9ED46B660FA54691BF8DF" blockId="5.[121,749,1492,1868]" pageId="5" pageNumber="254">
<emphasis id="B964EAC5FFC9ED46B660FA546BA3FA7F" bold="true" box="[121,225,1492,1516]" pageId="5" pageNumber="254">Remarks</emphasis>
. To date, only 12 valid species of
<taxonomicName id="4C104D54FFC9ED46B443FA5469AFFA7F" authorityName="Blake" authorityYear="1991" box="[602,749,1492,1516]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="254" phylum="Annelida" rank="genus">
<emphasis id="B964EAC5FFC9ED46B443FA5469AFFA7F" box="[602,749,1492,1516]" italics="true" pageId="5" pageNumber="254">Aphelochaeta</emphasis>
</taxonomicName>
have been described from abyssal depths of about
<quantity id="4CE89B32FFC9ED46B482FA7169AFF99B" box="[667,749,1521,1545]" metricMagnitude="3" metricUnit="m" metricValue="3.0" pageId="5" pageNumber="254" unit="m" value="3000.0">3000 m</quantity>
or greater (
<bibRefCitation id="EF814B26FFC9ED46B6EFF98E6A3CF9B5" author="Blake, J. A." box="[246,382,1550,1574]" pageId="5" pageNumber="254" pagination="1 - 130" refId="ref11963" refString="Blake, J. A. 2018. Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America. Zootaxa 4537: 1 - 130. https: // doi. org / 10.11646 / zootaxa. 4537.1.1" type="journal article" year="2018">Blake, 2018</bibRefCitation>
, 2019, this study).
<taxonomicName id="4C104D54FFC9ED46B440F98E6BF2F9D7" authority="Blake, 2023" authorityName="Blake" authorityYear="2023" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="254" phylum="Annelida" rank="species" species="readi" status="sp. nov.">
<emphasis id="B964EAC5FFC9ED46B440F98E6BF2F9D7" italics="true" pageId="5" pageNumber="254">Aphelochaeta readi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25757BEFFC9ED46B6A0F9AC6A4DF9D0" box="[185,271,1580,1603]" pageId="5" pageNumber="254" rank="species">sp. nov.</taxonomicNameLabel>
is the twelfth species in this group and the only one having multiple peristomial rings that cross the dorsal surface, yet do not cross the ventral surface leaving it smooth. In addition, the distinct widening of the first 8–9 setigers followed by a narrow middle and posterior body with a few far posterior moniliform segments terminating in a simple pygidial lobe is distinctive. Unlike other cirratulids encountered in this study and at other deep-water locations,
<taxonomicName id="4C104D54FFC9ED46B660F8976B8CF8BD" authority="Blake, 2023" authorityName="Blake" authorityYear="2023" box="[121,206,1814,1838]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="254" phylum="Annelida" rank="species" species="readi" status="sp. nov.">
<emphasis id="B964EAC5FFC9ED46B660F8976B8CF8BD" box="[121,206,1814,1838]" italics="true" pageId="5" pageNumber="254">A. readi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25757BEFFC9ED46B6CCF8976A65F8BD" box="[213,295,1815,1838]" pageId="5" pageNumber="254" rank="species">sp. nov.</taxonomicNameLabel>
is the only one to have the mouth opening directed frontally, not visible in ventral view.
</paragraph>
</subSubSection>
<subSubSection id="C30A655CFFC9ED46B503FA54688DF967" pageId="5" pageNumber="254" type="etymology">
<paragraph id="8BAF36D7FFC9ED46B503FA54688DF967" blockId="5.[794,1422,1492,1780]" pageId="5" pageNumber="254">
<emphasis id="B964EAC5FFC9ED46B503FA5468D7FA7F" bold="true" box="[794,917,1492,1516]" pageId="5" pageNumber="254">Etymology</emphasis>
. This species is named in honour of Dr Geoffrey Read, Marine Biologist with the National Institute of Water &amp; Atmospheric Research Ltd (NIWA),
<collectingRegion id="49D4F835FFC9ED46B308F98E6EC8F9B5" box="[1297,1418,1550,1574]" country="New Zealand" name="Wellington" pageId="5" pageNumber="254">Wellington</collectingRegion>
,
<collectingCountry id="F3077647FFC9ED46B503F9AC68E8F9D7" box="[794,938,1580,1604]" name="New Zealand" pageId="5" pageNumber="254">New Zealand</collectingCountry>
in recognition of his long-time role as Chief Editor of annelids for the World Register of Marine Species (WoRMS). In addition, Dr Read has long maintained a website site dedicated to polychaetes and provides a wide range of assistance in addressing problems with zoological nomenclature and locating references, many of which are long out of print.
</paragraph>
</subSubSection>
<subSubSection id="C30A655CFFC9ED46B503F8966F60F8D8" pageId="5" pageNumber="254" type="distribution">
<paragraph id="8BAF36D7FFC9ED46B503F8966F60F8D8" blockId="5.[794,1422,1814,1868]" pageId="5" pageNumber="254">
<emphasis id="B964EAC5FFC9ED46B503F89668E7F8BD" bold="true" box="[794,933,1814,1838]" pageId="5" pageNumber="254">Distribution</emphasis>
. Abyssal plain off Byron Bay, NSW, eastern
<collectingCountry id="F3077647FFC9ED46B503F8B4683DF8DF" box="[794,895,1844,1868]" name="Australia" pageId="5" pageNumber="254">Australia</collectingCountry>
,
<quantity id="4CE89B32FFC9ED46B590F8B36F5CF8D8" box="[905,1054,1843,1867]" metricMagnitude="3" metricUnit="m" metricValue="3.7825" metricValueMax="3.811" metricValueMin="3.754" pageId="5" pageNumber="254" unit="m" value="3782.5" valueMax="3811.0" valueMin="3754.0">3754–3811 m</quantity>
.
</paragraph>
</subSubSection>
</treatment>
</document>
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