427 lines
59 KiB
XML
427 lines
59 KiB
XML
<document id="1F978C96864FBFD6A40087AA8BF22F4C" ID-CLB-Dataset="21824" ID-DOI="10.5852/ejt.2012.27" ID-GBIF-Dataset="6e065566-c313-404b-9895-6e274f4a0927" ID-ISSN="2118-9773" ID-Zenodo-Dep="3858428" ID-ZooBank="09359E10-277B-4018-BC69-7944D8DE6FD4" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1590534167757" checkinUser="valdenar" docAuthor="Darbyshire, Teresa" docDate="2012" docId="03D7AB44FFCB8668FDDFA807FE45FA33" docLanguage="en" docName="ejt-2012-27.pdf.imf" docOrigin="European Journal of Taxonomy 27" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Dysponetus joeli Olivier 2012" docType="treatment" docVersion="6" lastPageNumber="6" masterDocId="FFEED33CFFC9866DFF9CA90BFF87FFD4" masterDocTitle="Re-description of Dysponetus joeli Olivier et al., 2012 (Polychaeta, Chrysopetalidae), with a new key to species of the genus" masterLastPageNumber="9" masterPageNumber="1" pageNumber="3" updateTime="1698841580011" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-3.0" zenodo-license-figures="CC-BY-3.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="76B199FD9C0E41D01E30E515C9BC408A">Re-description of Dysponetus joeli Olivier et al., 2012 (Polychaeta, Chrysopetalidae), with a new key to species of the genus</mods:title>
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<mods:title id="2932B269398272E0D16DF7B0124F6CC6">European Journal of Taxonomy</mods:title>
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<treatment id="03D7AB44FFCB8668FDDFA807FE45FA33" ID-DOI="http://doi.org/10.5281/zenodo.3858931" ID-GBIF-Taxon="164340843" ID-Zenodo-Dep="3858931" LSID="urn:lsid:plazi:treatment:03D7AB44FFCB8668FDDFA807FE45FA33" httpUri="http://treatment.plazi.org/id/03D7AB44FFCB8668FDDFA807FE45FA33" lastPageId="5" lastPageNumber="6" pageId="2" pageNumber="3">
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<taxonomicName id="4C7E61D1FFCB866FFDDFA807FC76FEF1" ID-CoL="6DSCD" authority="Olivier et al., 2012" authorityName="Olivier" authorityYear="2012" box="[579,1009,267,294]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="2" pageNumber="3" phylum="Annelida" rank="species" species="joeli">
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<emphasis id="B90AC640FFCB866FFDDFA807FC8CFEF2" bold="true" box="[579,779,267,294]" italics="true" pageId="2" pageNumber="3">Dysponetus joeli</emphasis>
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<bibRefCitation id="EFEF67A3FFCB866FFC8EA800FC76FEF1" author="Olivier F. & Lana P. & Oliveira V. & Worsfold T." box="[786,1009,267,294]" pageId="2" pageNumber="3" pagination="989 - 996" refId="ref4673" refString="Olivier F., Lana P., Oliveira V. & Worsfold T. 2012. Dysponetus Joeli sp. nov. (Polychaeta: Chrysopetalidae) from the north-east Atlantic, with a cladistic analysis of the genus and a key to species. Journal of the Marine Biological Association of the UK 92: 989 - 996. http: // dx. doi. org / 10.1017 / S 0025315412000562" type="journal article" year="2012">
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Olivier
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<emphasis id="B90AC640FFCB866FFCF0A807FC20FEF1" box="[876,935,267,293]" italics="true" pageId="2" pageNumber="3">et al.</emphasis>
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, 2012
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</taxonomicName>
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</heading>
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</paragraph>
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<subSubSection id="C36449D9FFCB866FFD32A825FC01FE9D" box="[686,902,302,329]" pageId="2" pageNumber="3" type="description">
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<paragraph id="8BC11A52FFCB866FFD32A825FC01FE9D" blockId="2.[579,1009,267,329]" box="[686,902,302,329]" pageId="2" pageNumber="3">
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<figureCitation id="134506D7FFCB866FFD32A825FD75FE9D" box="[686,754,302,329]" captionStart="Fig" captionStartId="2.[189,232,1759,1785]" captionTargetBox="[190,1401,767,1732]" captionTargetId="figure@2.[159,1416,729,1763]" captionTargetPageId="2" captionText="Fig. 1. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, anterior end, dorsal view. B. NMW.Z.2009.027.0004, anterior end, ventral view. C. NMW.Z.2009.027.0003, posterior end, ventral view. D. Holotype (MNHN POLY TYPE 1533), anterior end, ventral view. Only a few chaetae drawn in each case for clarity. – ac = accessory chaeta, d = dorsal (cirrus/cirrophore), la = lateral antenna, ma = median antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrus/cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858430" httpUri="https://zenodo.org/record/3858430/files/figure.png" pageId="2" pageNumber="3">Figs 1</figureCitation>
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A–D, 2A–D
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</paragraph>
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</subSubSection>
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<subSubSection id="C36449D9FFCB866FFF21A87AFCD6FE5E" box="[189,849,368,395]" pageId="2" pageNumber="3" type="reference_group">
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<treatmentCitation id="0ADF3C43FFCB866FFF21A87AFD67FE5E" author="Olivier F. & Lana P. & Oliveira V. & Worsfold T." box="[189,736,368,395]" page="996" pageId="2" pageNumber="3" year="2012">
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<taxonomicName id="4C7E61D1FFCB866FFF21A87AFD67FE5E" ID-CoL="84NC9" authority="Joeli Olivier et al., 2012: 989 - 996" authorityName="Joeli Olivier" authorityPageNumber="989 - 996" authorityYear="2012" box="[189,736,368,395]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="2" pageNumber="3" phylum="Annelida" rank="genus">
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<emphasis id="B90AC640FFCB866FFF21A87AFE06FE5E" box="[189,385,368,394]" italics="true" pageId="2" pageNumber="3">Dysponetus Joeli</emphasis>
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<bibRefCitation id="EFEF67A3FFCB866FFE15A87BFD67FE5E" author="Olivier F. & Lana P. & Oliveira V. & Worsfold T." box="[393,736,368,395]" pageId="2" pageNumber="3" pagination="989 - 996" refId="ref4673" refString="Olivier F., Lana P., Oliveira V. & Worsfold T. 2012. Dysponetus Joeli sp. nov. (Polychaeta: Chrysopetalidae) from the north-east Atlantic, with a cladistic analysis of the genus and a key to species. Journal of the Marine Biological Association of the UK 92: 989 - 996. http: // dx. doi. org / 10.1017 / S 0025315412000562" type="journal article" year="2012">
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Olivier
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<emphasis id="B90AC640FFCB866FFE7FA87AFD99FE5E" box="[483,542,368,394]" italics="true" pageId="2" pageNumber="3">et al.</emphasis>
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, 2012: 989–996
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</bibRefCitation>
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</taxonomicName>
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</treatmentCitation>
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, figs 1–3.
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</treatmentCitationGroup>
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</paragraph>
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</subSubSection>
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<subSubSection id="C36449D9FFCB866FFF21A8BAFBAAFD19" pageId="2" pageNumber="3" type="materials_examined">
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<paragraph id="8BC11A52FFCB866FFF21A8BAFE2CFE1F" blockId="2.[189,427,433,459]" box="[189,427,433,459]" pageId="2" pageNumber="3">
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<heading id="D089AD3EFFCB866FFF21A8BAFE2CFE1F" bold="true" box="[189,427,433,459]" fontSize="11" level="3" pageId="2" pageNumber="3" reason="3">
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<emphasis id="B90AC640FFCB866FFF21A8BAFE2CFE1F" bold="true" box="[189,427,433,459]" pageId="2" pageNumber="3">Material examined</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8BC11A52FFCB866FFF21A8EBFBAAFD19" blockId="2.[189,1399,480,718]" pageId="2" pageNumber="3">
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Chausey,
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<collectingCountry id="F3695AC2FFCB866FFEAEA8EAFE02FE2F" box="[306,389,481,507]" name="France" pageId="2" pageNumber="3">France</collectingCountry>
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, Sta. SSMM01 (
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,
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), maerl, 10.0 m,
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<typeStatus id="54C5A4F0FFCB866FFB3EA8EBFA8EFE2E" box="[1186,1289,480,506]" pageId="2" pageNumber="3" type="holotype">holotype</typeStatus>
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(
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<collectionCode id="ED6F8297FFCB866FFA87A8EBFAF0FE2E" box="[1307,1399,480,506]" country="France" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" lsid="urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="2" pageNumber="3">MNHN</collectionCode>
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<collectionCode id="ED6F8297FFCB866FFF21AB08FED1FDCA" box="[189,342,515,542]" pageId="2" pageNumber="3">POLY TYPE</collectionCode>
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1533),
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<typeStatus id="54C5A4F0FFCB866FFE2DAB0FFD91FDCA" box="[433,534,516,542]" pageId="2" pageNumber="3" type="paratype">paratype</typeStatus>
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(
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<collectionCode id="ED6F8297FFCB866FFDB9AB08FD06FDC9" box="[549,641,515,541]" country="France" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" lsid="urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="2" pageNumber="3">MNHN</collectionCode>
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<collectionCode id="ED6F8297FFCB866FFD14AB08FCA6FDCA" box="[648,801,515,542]" pageId="2" pageNumber="3">POLY TYPE</collectionCode>
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1534),
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<date id="FFC03C92FFCB866FFCE0AB08FB9FFDC9" box="[892,1048,515,541]" pageId="2" pageNumber="3" value="2006-04-18">18 Apr. 2006</date>
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; off St Mary’s, Isles of Scilly, Sta. 3b (
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<geoCoordinate id="EE4A7C95FFCB866FFEBCAB2DFE3CFD95" box="[288,443,550,577]" degrees="49" direction="north" minutes="54.20" orientation="latitude" pageId="2" pageNumber="3" precision="9" value="49.90333">49° 54.20’ N</geoCoordinate>
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,
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<geoCoordinate id="EE4A7C95FFCB866FFE54AB2DFDF0FD95" box="[456,631,550,577]" degrees="006" direction="west" minutes="18.94" orientation="longitude" pageId="2" pageNumber="3" precision="9" value="-6.3156667">006° 18.94’ W</geoCoordinate>
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), coarse sand/shell/gravel with some silt/clay,
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<quantity id="4C86B7B7FFCB866FFB06AB2DFB5EFD95" box="[1178,1241,550,577]" metricMagnitude="1" metricUnit="m" metricValue="2.5" pageId="2" pageNumber="3" unit="m" value="25.0">25 m</quantity>
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,
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<specimenCount id="9D78D1DBFFCB866FFB7AAB2DFAF1FD94" box="[1254,1398,550,576]" pageId="2" pageNumber="3" type="generic">2 specimens</specimenCount>
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(
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<collectionCode id="ED6F8297FFCB866FFF59AB41FE94FDB0" box="[197,275,586,612]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="2" pageNumber="3">NMW</collectionCode>
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.Z.2009.027.0001–0002),
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<date id="FFC03C92FFCB866FFDDEAB42FD5AFDB0" box="[578,733,585,612]" pageId="2" pageNumber="3" value="2009-06-25">25 Jun. 2009</date>
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; west of St Martin’s, Isles of Scilly, Sta. 14b (
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<geoCoordinate id="EE4A7C95FFCB866FFB67AB41FF52FD53" degrees="49" direction="north" minutes="57.86" orientation="latitude" pageId="2" pageNumber="3" precision="9" value="49.964333">49° 57.86’ N</geoCoordinate>
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,
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<geoCoordinate id="EE4A7C95FFCB866FFF7CAB66FE0CFD53" box="[224,395,621,648]" degrees="006" direction="west" minutes="15.21" orientation="longitude" pageId="2" pageNumber="3" precision="9" value="-6.2535">006° 15.21’ W</geoCoordinate>
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), shell gravel in muddy sand,
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<quantity id="4C86B7B7FFCB866FFD78AB66FCB1FD53" box="[740,822,621,648]" metricMagnitude="1" metricUnit="m" metricValue="3.51" pageId="2" pageNumber="3" unit="m" value="35.1">35.1 m</quantity>
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,
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<specimenCount id="9D78D1DBFFCB866FFCDDAB66FC57FD53" box="[833,976,621,647]" pageId="2" pageNumber="3" type="generic">2 specimens</specimenCount>
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(
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<collectionCode id="ED6F8297FFCB866FFC42AB66FBABFD53" box="[990,1068,621,647]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="2" pageNumber="3">NMW</collectionCode>
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.Z.2009.027.0003–0004),
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<date id="FFC03C92FFCB866FFAC5AB66FEB5FD7E" pageId="2" pageNumber="3" value="2009-06-27">27 Jun. 2009</date>
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; west of Isles of Scilly, Sta. 24b (
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<geoCoordinate id="EE4A7C95FFCB866FFD2BAB9BFCD7FD7F" box="[695,848,656,683]" degrees="49" direction="north" minutes="55.22" orientation="latitude" pageId="2" pageNumber="3" precision="9" value="49.920334">49° 55.22’ N</geoCoordinate>
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,
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<geoCoordinate id="EE4A7C95FFCB866FFCC0AB9BFB8DFD7F" box="[860,1034,656,683]" degrees="006" direction="west" minutes="23.91" orientation="longitude" pageId="2" pageNumber="3" precision="9" value="-6.3985">006° 23.91’ W</geoCoordinate>
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), silty coarse sand/shell gravel,
|
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<quantity id="4C86B7B7FFCB866FFF21ABB8FE96FD1A" box="[189,273,691,718]" metricMagnitude="1" metricUnit="m" metricValue="4.71" pageId="2" pageNumber="3" unit="m" value="47.1">47.1 m</quantity>
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,
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<specimenCount id="9D78D1DBFFCB866FFE81ABB8FE25FD19" box="[285,418,691,717]" pageId="2" pageNumber="3" type="generic">1 specimen</specimenCount>
|
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used for SEM (
|
||
<collectionCode id="ED6F8297FFCB866FFDC0ABB8FD2CFD1A" box="[604,683,691,718]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="2" pageNumber="3">NMW</collectionCode>
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.Z.2009.027.0005),
|
||
<date id="FFC03C92FFCB866FFC13ABB8FBAEFD19" box="[911,1065,691,718]" pageId="2" pageNumber="3" value="2009-06-29">29 Jun. 2009</date>
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||
.
|
||
</paragraph>
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</subSubSection>
|
||
<caption id="DF014ADAFFCB866FFF21AFD4FDA5F87E" ID-DOI="http://doi.org/10.5281/zenodo.3858430" ID-Zenodo-Dep="3858430" httpUri="https://zenodo.org/record/3858430/files/figure.png" pageId="2" pageNumber="3" startId="2.[189,232,1759,1785]" targetBox="[190,1401,767,1732]" targetPageId="2">
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<paragraph id="8BC11A52FFCB866FFF21AFD4FDA5F87E" blockId="2.[189,1399,1759,1962]" pageId="2" pageNumber="3">
|
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<emphasis id="B90AC640FFCB866FFF21AFD4FE88F92D" bold="true" box="[189,271,1759,1785]" pageId="2" pageNumber="3">Fig. 1.</emphasis>
|
||
<taxonomicName id="4C7E61D1FFCB866FFE86AFEBFD5AF92D" authority="Joeli Olivier et al., 2012" authorityName="Joeli Olivier" authorityYear="2012" box="[282,733,1759,1786]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="2" pageNumber="3" phylum="Annelida" rank="genus">
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||
<emphasis id="B90AC640FFCB866FFE86AFEBFE64F92D" box="[282,483,1759,1785]" italics="true" pageId="2" pageNumber="3">Dysponetus Joeli</emphasis>
|
||
<bibRefCitation id="EFEF67A3FFCB866FFE72AFD4FD5AF92D" author="Olivier F. & Lana P. & Oliveira V. & Worsfold T." box="[494,733,1759,1786]" pageId="2" pageNumber="3" pagination="989 - 996" refId="ref4673" refString="Olivier F., Lana P., Oliveira V. & Worsfold T. 2012. Dysponetus Joeli sp. nov. (Polychaeta: Chrysopetalidae) from the north-east Atlantic, with a cladistic analysis of the genus and a key to species. Journal of the Marine Biological Association of the UK 92: 989 - 996. http: // dx. doi. org / 10.1017 / S 0025315412000562" type="journal article" year="2012">
|
||
Olivier
|
||
<emphasis id="B90AC640FFCB866FFDD1AFEBFD0BF92D" box="[589,652,1759,1785]" italics="true" pageId="2" pageNumber="3">et al.</emphasis>
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||
, 2012
|
||
</bibRefCitation>
|
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</taxonomicName>
|
||
.
|
||
<emphasis id="B90AC640FFCB866FFD71AFD4FC8EF92D" bold="true" box="[749,777,1759,1785]" pageId="2" pageNumber="3">A.</emphasis>
|
||
NMW.Z.2009.027.0003, anterior end, dorsal view.
|
||
<emphasis id="B90AC640FFCB866FFF21AE08FF5FF8C9" bold="true" box="[189,216,1795,1821]" pageId="2" pageNumber="3">B.</emphasis>
|
||
NMW.Z.2009.027.0004, anterior end, ventral view.
|
||
<emphasis id="B90AC640FFCB866FFCABAE09FCD3F8C8" bold="true" box="[823,852,1794,1820]" pageId="2" pageNumber="3">C.</emphasis>
|
||
NMW.Z.2009.027.0003, posterior end, ventral view.
|
||
<emphasis id="B90AC640FFCB866FFE98AE2DFEA6F894" bold="true" box="[260,289,1830,1856]" pageId="2" pageNumber="3">D.</emphasis>
|
||
Holotype (MNHN POLY TYPE 1533), anterior end, ventral view. Only a few chaetae drawn in each case for clarity. – ac = accessory chaeta, d = dorsal (cirrus/cirrophore), la = lateral antenna, ma = median antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrus/cirrophore); numbers indicate the segment.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="C36449D9FFCA8669FF21A800FA98FEA3" lastPageId="4" lastPageNumber="5" pageId="3" pageNumber="4" type="description">
|
||
<paragraph id="8BC11A52FFCA866EFF21A800FEC9FEF1" blockId="3.[189,334,267,293]" box="[189,334,267,293]" pageId="3" pageNumber="4">
|
||
<heading id="D089AD3EFFCA866EFF21A800FEC9FEF1" bold="true" box="[189,334,267,293]" fontSize="11" level="3" pageId="3" pageNumber="4" reason="3">
|
||
<emphasis id="B90AC640FFCA866EFF21A800FEC9FEF1" bold="true" box="[189,334,267,293]" pageId="3" pageNumber="4">Description</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCA866EFF21A832FAB9FE34" blockId="3.[189,1398,313,481]" pageId="3" pageNumber="4">
|
||
<typeStatus id="54C5A4F0FFCA866EFF21A832FEADFE87" box="[189,298,313,339]" pageId="3" pageNumber="4" type="holotype">Holotype</typeStatus>
|
||
in 4 pieces, posteriorly incomplete,
|
||
<quantity id="4C86B7B7FFCA866EFD72A831FCCBFE80" box="[750,844,314,340]" metricMagnitude="-3" metricUnit="m" metricValue="3.1" pageId="3" pageNumber="4" unit="mm" value="3.1">3.1 mm</quantity>
|
||
long for 19 chaetigers.
|
||
<typeStatus id="54C5A4F0FFCA866EFBEBA831FB59FE80" box="[1143,1246,314,340]" pageId="3" pageNumber="4" type="paratype">Paratype</typeStatus>
|
||
in 3 pieces, anterior dissected fragment of 5 chaetigers with 2 further detached chaetigers. 3 non-type specimens up to
|
||
<quantity id="4C86B7B7FFCA866EFE98A88BFECDFE4E" box="[260,330,384,410]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" pageId="3" pageNumber="4" unit="mm" value="6.0">6 mm</quantity>
|
||
long,
|
||
<quantity id="4C86B7B7FFCA866EFE0BA88BFD85FE4E" box="[407,514,384,411]" metricMagnitude="-4" metricUnit="m" metricValue="3.5" pageId="3" pageNumber="4" unit="mm" value="0.35">0.35 mm</quantity>
|
||
wide (between segments, not including parapodia or chaetae) with 25–33 chaetigers. Two other incomplete non-type specimens examined. The following description is based on entire specimens from the
|
||
<collectingRegion id="49BAD4B0FFCA866EFE68A8CDFD11FE34" box="[500,662,454,480]" country="United Kingdom" name="Isles of Scilly" pageId="3" pageNumber="4">Isles of Scilly</collectingRegion>
|
||
, except where specified as pertaining to the type material.
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCA866EFF21AB03FDFDFDBC" blockId="3.[189,1399,520,616]" pageId="3" pageNumber="4">
|
||
Body shape cylindrical, ventrally flattened, tapered slightly at posterior. Body pale cream in colour (fixed, unstained), eyes dark reddish brown (
|
||
<figureCitation id="134506D7FFCA866EFD5AAB20FCA5FD91" box="[710,802,555,581]" captionStart="Fig" captionStartId="4.[189,232,1821,1847]" captionTargetBox="[189,1400,861,1793]" captionTargetId="figure@4.[189,1400,861,1793]" captionTargetPageId="4" captionText="Fig. 2. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, whole specimen, dorsal view (scale bar 1 mm). B. NMW.Z.2009.027.0005, anterior end, ventrolateral view (scale bar 50 µm). C. Notochaetae (scale bar 10 µm). D. Neurochaetae (scale bar 20 µm). – d = dorsal (cirrophore), la = lateral antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858432" httpUri="https://zenodo.org/record/3858432/files/figure.png" pageId="3" pageNumber="4">Fig. 2A</figureCitation>
|
||
) but pigment may degrade in alcohol. Eyes of
|
||
<typeStatus id="54C5A4F0FFCA866EFAD8AB20FAF0FD91" box="[1348,1399,555,581]" pageId="3" pageNumber="4">type</typeStatus>
|
||
specimens already barely discernable.
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCA866EFF21AB84FD0AFC8D" blockId="3.[189,1398,655,858]" pageId="3" pageNumber="4">
|
||
Prostomium oblong, wider anteriorly (
|
||
<figureCitation id="134506D7FFCA866EFD16AB84FD6DFD7E" box="[650,746,655,682]" captionStart="Fig" captionStartId="2.[189,232,1759,1785]" captionTargetBox="[190,1401,767,1732]" captionTargetId="figure@2.[159,1416,729,1763]" captionTargetPageId="2" captionText="Fig. 1. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, anterior end, dorsal view. B. NMW.Z.2009.027.0004, anterior end, ventral view. C. NMW.Z.2009.027.0003, posterior end, ventral view. D. Holotype (MNHN POLY TYPE 1533), anterior end, ventral view. Only a few chaetae drawn in each case for clarity. – ac = accessory chaeta, d = dorsal (cirrus/cirrophore), la = lateral antenna, ma = median antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrus/cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858430" httpUri="https://zenodo.org/record/3858430/files/figure.png" pageId="3" pageNumber="4">Fig. 1A</figureCitation>
|
||
). Four large, rounded eyes visible in fixed specimens, anterior pair larger and more widely separated than posterior. Median antenna small, bottle-shaped, arising anterodorsally from prostomium. Lateral antennae bottle-shaped, slightly smaller than median, arising immediately dorsal to palps. Antennae without distinct ceratophores. Palps directed posteriorly, stout, oval, more than twice as long as wide. No antennae or palps remaining on
|
||
<typeStatus id="54C5A4F0FFCA866EFB21AA16FB77FCE3" box="[1213,1264,797,823]" pageId="3" pageNumber="4">type</typeStatus>
|
||
specimens examined. Nuchal organs not observed.
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCA866EFF21AA8AFEDBFC35" blockId="3.[189,1399,897,994]" pageId="3" pageNumber="4">
|
||
Distinct single mouth appendage on lower lip, anteriorly directed, digitiform with blunt tip (
|
||
<figureCitation id="134506D7FFCA866EFA88AA8AFAF6FC4F" box="[1300,1393,897,923]" captionStart="Fig" captionStartId="2.[189,232,1759,1785]" captionTargetBox="[190,1401,767,1732]" captionTargetId="figure@2.[159,1416,729,1763]" captionTargetPageId="2" captionText="Fig. 1. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, anterior end, dorsal view. B. NMW.Z.2009.027.0004, anterior end, ventral view. C. NMW.Z.2009.027.0003, posterior end, ventral view. D. Holotype (MNHN POLY TYPE 1533), anterior end, ventral view. Only a few chaetae drawn in each case for clarity. – ac = accessory chaeta, d = dorsal (cirrus/cirrophore), la = lateral antenna, ma = median antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrus/cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858430" httpUri="https://zenodo.org/record/3858430/files/figure.png" pageId="3" pageNumber="4">Fig. 1B</figureCitation>
|
||
,
|
||
<figureCitation id="134506D7FFCA866EFF21AAAFFF65FC6A" box="[189,226,932,958]" captionStart="Fig" captionStartId="4.[189,232,1821,1847]" captionTargetBox="[189,1400,861,1793]" captionTargetId="figure@4.[189,1400,861,1793]" captionTargetPageId="4" captionText="Fig. 2. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, whole specimen, dorsal view (scale bar 1 mm). B. NMW.Z.2009.027.0005, anterior end, ventrolateral view (scale bar 50 µm). C. Notochaetae (scale bar 10 µm). D. Neurochaetae (scale bar 20 µm). – d = dorsal (cirrophore), la = lateral antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858432" httpUri="https://zenodo.org/record/3858432/files/figure.png" pageId="3" pageNumber="4">2B</figureCitation>
|
||
). Single pair of stylet-shaped jaws, visible through body wall with methyl green staining. Proboscis not observed.
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCA866EFF21AD02FAF4FB07" blockId="3.[189,1398,1033,1235]" pageId="3" pageNumber="4">
|
||
First two segments slightly elevated dorsally with four pairs tentacular cirri, longer than but with same shape as dorsal cirri of third and following segments, anteriorly directed. First segment achaetous, second segment with notochaetae only, situated slightly anterior to dorsal tentacular cirrus. Third segment biramous; dorsal cirri present, ventral cirri absent (
|
||
<figureCitation id="134506D7FFCA866EFC15AD79FBBFFB59" box="[905,1080,1138,1165]" captionStart="Fig" captionStartId="2.[189,232,1759,1785]" captionTargetBox="[190,1401,767,1732]" captionTargetId="figure@2.[159,1416,729,1763]" captionTargetPageId="2" captionText="Fig. 1. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, anterior end, dorsal view. B. NMW.Z.2009.027.0004, anterior end, ventral view. C. NMW.Z.2009.027.0003, posterior end, ventral view. D. Holotype (MNHN POLY TYPE 1533), anterior end, ventral view. Only a few chaetae drawn in each case for clarity. – ac = accessory chaeta, d = dorsal (cirrus/cirrophore), la = lateral antenna, ma = median antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrus/cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858430" httpUri="https://zenodo.org/record/3858430/files/figure.png" pageId="3" pageNumber="4">Figs 1A, B, D</figureCitation>
|
||
,
|
||
<figureCitation id="134506D7FFCA866EFBDAAD79FBECFB58" box="[1094,1131,1138,1164]" captionStart="Fig" captionStartId="4.[189,232,1821,1847]" captionTargetBox="[189,1400,861,1793]" captionTargetId="figure@4.[189,1400,861,1793]" captionTargetPageId="4" captionText="Fig. 2. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, whole specimen, dorsal view (scale bar 1 mm). B. NMW.Z.2009.027.0005, anterior end, ventrolateral view (scale bar 50 µm). C. Notochaetae (scale bar 10 µm). D. Neurochaetae (scale bar 20 µm). – d = dorsal (cirrophore), la = lateral antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858432" httpUri="https://zenodo.org/record/3858432/files/figure.png" pageId="3" pageNumber="4">2B</figureCitation>
|
||
).
|
||
<typeStatus id="54C5A4F0FFCA866EFB1FAD79FB77FB58" box="[1155,1264,1138,1164]" pageId="3" pageNumber="4" type="holotype">Holotype</typeStatus>
|
||
lacking all cirri on anterior three segments, but presence indicated by cirrophores (
|
||
<figureCitation id="134506D7FFCA866EFC6AAD9EFBD5FB64" box="[1014,1106,1173,1200]" captionStart="Fig" captionStartId="2.[189,232,1759,1785]" captionTargetBox="[190,1401,767,1732]" captionTargetId="figure@2.[159,1416,729,1763]" captionTargetPageId="2" captionText="Fig. 1. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, anterior end, dorsal view. B. NMW.Z.2009.027.0004, anterior end, ventral view. C. NMW.Z.2009.027.0003, posterior end, ventral view. D. Holotype (MNHN POLY TYPE 1533), anterior end, ventral view. Only a few chaetae drawn in each case for clarity. – ac = accessory chaeta, d = dorsal (cirrus/cirrophore), la = lateral antenna, ma = median antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrus/cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858430" httpUri="https://zenodo.org/record/3858430/files/figure.png" pageId="3" pageNumber="4">Fig. 1D</figureCitation>
|
||
). Following segments all biramous with both dorsal and ventral cirri. Single noto- and neuroacicula present in each parapodium.
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCA866EFF21ADF1FE87FA10" blockId="3.[189,1399,1274,1477]" pageId="3" pageNumber="4">
|
||
Notopodial lobes reduced. Dorsal cirri long, slender, longer than chaetae (
|
||
<quantity id="4C86B7B7FFCA866EFBD6ADF1FB6FFAC1" box="[1098,1256,1274,1301]" metricMagnitude="-1" metricUnit="m" metricValue="3.2" metricValueMax="4.3" metricValueMin="2.1" pageId="3" pageNumber="4" unit="mm" value="320.0" valueMax="430.0" valueMin="210.0">210–430 µm</quantity>
|
||
, longest on median chaetigers), cirrophores present. Styles slightly proximally swollen, distally tapering, tips blunt. Notoacicula difficult to detect. Notochaetae inserted dorsal to cirrus, densely packed, directed posteriorly leaving middle part of dorsum exposed. Chaetae D-shaped in cross-section (
|
||
<figureCitation id="134506D7FFCA866EFBC2AC6FFB3CFAAA" box="[1118,1211,1380,1406]" captionStart="Fig" captionStartId="4.[189,232,1821,1847]" captionTargetBox="[189,1400,861,1793]" captionTargetId="figure@4.[189,1400,861,1793]" captionTargetPageId="4" captionText="Fig. 2. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, whole specimen, dorsal view (scale bar 1 mm). B. NMW.Z.2009.027.0005, anterior end, ventrolateral view (scale bar 50 µm). C. Notochaetae (scale bar 10 µm). D. Neurochaetae (scale bar 20 µm). – d = dorsal (cirrophore), la = lateral antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858432" httpUri="https://zenodo.org/record/3858432/files/figure.png" pageId="3" pageNumber="4">Fig. 2C</figureCitation>
|
||
) with denticles sharply pointed, in two parallel rows, 15–20 on each side. Notochaetal count, mid-body segments, up to 26.
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCA866EFF21ACE7FD6FF962" blockId="3.[189,1399,1516,1718]" pageId="3" pageNumber="4">
|
||
Neuropodia well-developed, conical mounds. Compound neurochaetae, with heterogomph shafts and fine bidentate falcigerous blades (
|
||
<figureCitation id="134506D7FFCA866EFDC4AF04FD3DF9FD" box="[600,698,1551,1577]" captionStart="Fig" captionStartId="4.[189,232,1821,1847]" captionTargetBox="[189,1400,861,1793]" captionTargetId="figure@4.[189,1400,861,1793]" captionTargetPageId="4" captionText="Fig. 2. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, whole specimen, dorsal view (scale bar 1 mm). B. NMW.Z.2009.027.0005, anterior end, ventrolateral view (scale bar 50 µm). C. Notochaetae (scale bar 10 µm). D. Neurochaetae (scale bar 20 µm). – d = dorsal (cirrophore), la = lateral antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858432" httpUri="https://zenodo.org/record/3858432/files/figure.png" pageId="3" pageNumber="4">Fig. 2D</figureCitation>
|
||
). Neurochaetal count, mid-body segments, at least 20–26 (chaetae densely packed and difficult to accurately count). Up to two accessory simple chaetae, similar to but smaller than notochaetae, inserted distally and anteriorly on neuropodial lobe (
|
||
<figureCitation id="134506D7FFCA866EFB33AF5EFA8CF9BB" box="[1199,1291,1621,1647]" captionStart="Fig" captionStartId="2.[189,232,1759,1785]" captionTargetBox="[190,1401,767,1732]" captionTargetId="figure@2.[159,1416,729,1763]" captionTargetPageId="2" captionText="Fig. 1. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, anterior end, dorsal view. B. NMW.Z.2009.027.0004, anterior end, ventral view. C. NMW.Z.2009.027.0003, posterior end, ventral view. D. Holotype (MNHN POLY TYPE 1533), anterior end, ventral view. Only a few chaetae drawn in each case for clarity. – ac = accessory chaeta, d = dorsal (cirrus/cirrophore), la = lateral antenna, ma = median antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrus/cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858430" httpUri="https://zenodo.org/record/3858430/files/figure.png" pageId="3" pageNumber="4">Fig. 1C</figureCitation>
|
||
). Ventral cirri fusiform, shorter than dorsal cirri (length
|
||
<quantity id="4C86B7B7FFCA866EFD60AF72FC10F947" box="[764,919,1657,1683]" metricMagnitude="-1" metricUnit="m" metricValue="1.9" metricValueMax="2.7" metricValueMin="1.1" pageId="3" pageNumber="4" unit="mm" value="190.0" valueMax="270.0" valueMin="110.0">110–270 µm</quantity>
|
||
, longest on median chaetigers), arising posteroventrally on neuropodial lobe (
|
||
<figureCitation id="134506D7FFCA866EFDE2AF97FD5EF962" box="[638,729,1692,1718]" captionStart="Fig" captionStartId="2.[189,232,1759,1785]" captionTargetBox="[190,1401,767,1732]" captionTargetId="figure@2.[159,1416,729,1763]" captionTargetPageId="2" captionText="Fig. 1. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, anterior end, dorsal view. B. NMW.Z.2009.027.0004, anterior end, ventral view. C. NMW.Z.2009.027.0003, posterior end, ventral view. D. Holotype (MNHN POLY TYPE 1533), anterior end, ventral view. Only a few chaetae drawn in each case for clarity. – ac = accessory chaeta, d = dorsal (cirrus/cirrophore), la = lateral antenna, ma = median antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrus/cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858430" httpUri="https://zenodo.org/record/3858430/files/figure.png" pageId="3" pageNumber="4">Fig. 1C</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCA866EFF21AFD6FE59F8B5" blockId="3.[189,1399,1757,1889]" pageId="3" pageNumber="4">
|
||
Final segment lacking noto- and neurochaetae, cirrophores of dorsal and ventral cirri observed although only a single, rounded dorsal cirrus observed on
|
||
<specimenCount id="9D78D1DBFFCA866EFD75AE0BFCEBF8CE" box="[745,876,1792,1818]" pageId="3" pageNumber="4" type="generic">1 specimen</specimenCount>
|
||
(NMW.Z.2009.027.0003). Pygidium conical with single projection (length
|
||
<quantity id="4C86B7B7FFCA866EFDBBAE2FFDFEF8EA" box="[551,633,1828,1854]" metricMagnitude="-2" metricUnit="m" metricValue="4.0" pageId="3" pageNumber="4" unit="mm" value="40.0">40 µm</quantity>
|
||
), cylindrical, slightly distally tapering, inserted posteroventrally (
|
||
<figureCitation id="134506D7FFCA866EFF5AAE4CFEA7F8B5" box="[198,288,1863,1889]" captionStart="Fig" captionStartId="2.[189,232,1759,1785]" captionTargetBox="[190,1401,767,1732]" captionTargetId="figure@2.[159,1416,729,1763]" captionTargetPageId="2" captionText="Fig. 1. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, anterior end, dorsal view. B. NMW.Z.2009.027.0004, anterior end, ventral view. C. NMW.Z.2009.027.0003, posterior end, ventral view. D. Holotype (MNHN POLY TYPE 1533), anterior end, ventral view. Only a few chaetae drawn in each case for clarity. – ac = accessory chaeta, d = dorsal (cirrus/cirrophore), la = lateral antenna, ma = median antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrus/cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858430" httpUri="https://zenodo.org/record/3858430/files/figure.png" pageId="3" pageNumber="4">Fig. 1C</figureCitation>
|
||
), anus terminal.
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCA866EFF21AE82FDDDF811" blockId="3.[189,1399,1928,1990]" pageId="3" pageNumber="4">
|
||
Eggs visible within one specimen (NMW.Z.2009.027.0001), flattened oval in shape, maximum width approx.
|
||
<quantity id="4C86B7B7FFCA866EFE81AEA0FEEBF812" box="[285,364,1963,1990]" metricMagnitude="-2" metricUnit="m" metricValue="5.0" pageId="3" pageNumber="4" unit="mm" value="50.0">50 µm</quantity>
|
||
, possibly immature.
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCD8669FF21A800FE9AFEF1" blockId="4.[189,285,267,293]" box="[189,285,267,293]" pageId="4" pageNumber="5">
|
||
<heading id="D089AD3EFFCD8669FF21A800FE9AFEF1" bold="true" box="[189,285,267,293]" fontSize="11" level="3" pageId="4" pageNumber="5" reason="3">
|
||
<emphasis id="B90AC640FFCD8669FF21A800FE9AFEF1" bold="true" box="[189,285,267,293]" pageId="4" pageNumber="5">Habitat</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCD8669FF21A832FA98FEA3" blockId="4.[189,1399,313,375]" pageId="4" pageNumber="5">
|
||
The species was originally described from maerl beds in the Bay of Biscay and the English Channel. The new specimens are all from coarse sand and shell sediments collected around the
|
||
<collectingRegion id="49BAD4B0FFCD8669FBE5A856FA90FEA3" box="[1145,1303,349,375]" country="United Kingdom" name="Isles of Scilly" pageId="4" pageNumber="5">Isles of Scilly</collectingRegion>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C36449D9FFCD8668FF21A895FE45FA33" lastPageId="5" lastPageNumber="6" pageId="4" pageNumber="5" type="discussion">
|
||
<paragraph id="8BC11A52FFCD8669FF21A895FEA8FE6C" blockId="4.[189,303,414,440]" box="[189,303,414,440]" pageId="4" pageNumber="5">
|
||
<heading id="D089AD3EFFCD8669FF21A895FEA8FE6C" bold="true" box="[189,303,414,440]" fontSize="11" level="3" pageId="4" pageNumber="5" reason="3">
|
||
<emphasis id="B90AC640FFCD8669FF21A895FEA8FE6C" bold="true" box="[189,303,414,440]" pageId="4" pageNumber="5">Remarks</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCD8669FF21A8C7FB29FDA0" blockId="4.[189,1399,460,628]" pageId="4" pageNumber="5">
|
||
The original description of
|
||
<emphasis id="B90AC640FFCD8669FD9CA8C6FDDFFE33" box="[512,600,461,487]" italics="true" pageId="4" pageNumber="5">D. Joeli</emphasis>
|
||
was based on small, damaged specimens and this may explain why the absence of the ventral cirri on chaetiger 3 was attributed to loss of the cirri rather than actual absence. Although cirri are easily lost from specimens, the cirrophores can still be seen under light microscopy at x400 magnification or greater. Application of methyl green staining can help distinguish these features. Under SEM conditions the absence of cirrophores on chaetiger 3 is obvious (
|
||
<figureCitation id="134506D7FFCD8669FBD8AB52FB26FDA0" box="[1092,1185,601,628]" captionStart="Fig" captionStartId="4.[189,232,1821,1847]" captionTargetBox="[189,1400,861,1793]" captionTargetId="figure@4.[189,1400,861,1793]" captionTargetPageId="4" captionText="Fig. 2. Dysponetus Joeli Olivier et al., 2012. A. NMW.Z.2009.027.0003, whole specimen, dorsal view (scale bar 1 mm). B. NMW.Z.2009.027.0005, anterior end, ventrolateral view (scale bar 50 µm). C. Notochaetae (scale bar 10 µm). D. Neurochaetae (scale bar 20 µm). – d = dorsal (cirrophore), la = lateral antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrophore); numbers indicate the segment." figureDoi="http://doi.org/10.5281/zenodo.3858432" httpUri="https://zenodo.org/record/3858432/files/figure.png" pageId="4" pageNumber="5">Fig. 2B</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCD8668FF21AB90FB19FE2C" blockId="4.[189,1399,667,835]" lastBlockId="5.[189,1399,266,505]" lastPageId="5" lastPageNumber="6" pageId="4" pageNumber="5">
|
||
An additional complication in determining the described characters of
|
||
<emphasis id="B90AC640FFCD8669FC6BAB97FBC8FD61" box="[1015,1103,667,693]" italics="true" pageId="4" pageNumber="5">D. Joeli</emphasis>
|
||
arises from the character matrix scores in the original paper (
|
||
<bibRefCitation id="EFEF67A3FFCD8669FDF8ABB5FCC2FD0C" author="Olivier F. & Lana P. & Oliveira V. & Worsfold T." box="[612,837,702,728]" pageId="4" pageNumber="5" pagination="989 - 996" refId="ref4673" refString="Olivier F., Lana P., Oliveira V. & Worsfold T. 2012. Dysponetus Joeli sp. nov. (Polychaeta: Chrysopetalidae) from the north-east Atlantic, with a cladistic analysis of the genus and a key to species. Journal of the Marine Biological Association of the UK 92: 989 - 996. http: // dx. doi. org / 10.1017 / S 0025315412000562" type="journal article" year="2012">
|
||
Olivier
|
||
<emphasis id="B90AC640FFCD8669FD5DABB4FD7AFD0C" box="[705,765,702,728]" italics="true" pageId="4" pageNumber="5">et al.</emphasis>
|
||
2012
|
||
</bibRefCitation>
|
||
). In their species description, the authors stated that there were 2 pairs of tentacular cirri on the first 2 segments but made no mention whether segment 3 possessed or lacked ventral cirri. They then later scored ventral cirri as absent for the first 2 segments (no separate score for tentacular cirri) and present for the third in the character matrix However, in the species key itself,
|
||
<emphasis id="B90AC640FFCC8668FE08A807FE6BFEF1" box="[404,492,267,293]" italics="true" pageId="5" pageNumber="6">D. Joeli</emphasis>
|
||
is keyed out with ventral cirri being present on the 3
|
||
<superScript id="7C0BB71AFFCC8668FBCBA801FBE2FECC" attach="left" box="[1111,1125,266,280]" fontSize="6" pageId="5" pageNumber="6">rd</superScript>
|
||
segment (i.e. chaetiger 2). It is apparent from the character states scored for the other species in the matrix that the authors have used the term ‘ventral cirrus’ interchangeably with ‘tentacular cirrus’. Earlier authorities have also been variable in their use of the terms ‘tentacular cirrus’ versus ‘cirrus’ with regards to the appendages of the first 3 segments in species of
|
||
<taxonomicName id="4C7E61D1FFCC8668FD88A892FD1AFE66" box="[532,669,409,434]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AC640FFCC8668FD88A892FD1AFE66" box="[532,669,409,434]" italics="true" pageId="5" pageNumber="6">Dysponetus</emphasis>
|
||
</taxonomicName>
|
||
. In this paper, only the cirri of the first 2 segments, which lack parapodia and have cirrophores directly attached to the body wall, are regarded as being tentacular. A later paper will discuss the different characters of
|
||
<taxonomicName id="4C7E61D1FFCC8668FC9BA8D4FC17FE2C" box="[775,912,479,504]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AC640FFCC8668FC9BA8D4FC17FE2C" box="[775,912,479,504]" italics="true" pageId="5" pageNumber="6">Dysponetus</emphasis>
|
||
</taxonomicName>
|
||
species in more detail.
|
||
</paragraph>
|
||
<caption id="DF014ADAFFCD8669FF21AE16FE31F811" ID-DOI="http://doi.org/10.5281/zenodo.3858432" ID-Zenodo-Dep="3858432" httpUri="https://zenodo.org/record/3858432/files/figure.png" pageId="4" pageNumber="5" startId="4.[189,232,1821,1847]" targetBox="[189,1400,861,1793]" targetPageId="4">
|
||
<paragraph id="8BC11A52FFCD8669FF21AE16FE31F811" blockId="4.[189,1399,1821,1989]" pageId="4" pageNumber="5">
|
||
<emphasis id="B90AC640FFCD8669FF21AE16FE96F8E3" bold="true" box="[189,273,1821,1847]" pageId="4" pageNumber="5">Fig. 2.</emphasis>
|
||
<taxonomicName id="4C7E61D1FFCD8669FE82AE15FD6BF8EC" authority="Joeli Olivier et al., 2012" authorityName="Joeli Olivier" authorityYear="2012" box="[286,748,1821,1848]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="4" pageNumber="5" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AC640FFCD8669FE82AE15FE6EF8E3" box="[286,489,1821,1847]" italics="true" pageId="4" pageNumber="5">Dysponetus Joeli</emphasis>
|
||
<bibRefCitation id="EFEF67A3FFCD8669FE6BAE16FD6BF8EC" author="Olivier F. & Lana P. & Oliveira V. & Worsfold T." box="[503,748,1821,1848]" pageId="4" pageNumber="5" pagination="989 - 996" refId="ref4673" refString="Olivier F., Lana P., Oliveira V. & Worsfold T. 2012. Dysponetus Joeli sp. nov. (Polychaeta: Chrysopetalidae) from the north-east Atlantic, with a cladistic analysis of the genus and a key to species. Journal of the Marine Biological Association of the UK 92: 989 - 996. http: // dx. doi. org / 10.1017 / S 0025315412000562" type="journal article" year="2012">
|
||
Olivier
|
||
<emphasis id="B90AC640FFCD8669FDC4AE15FD1EF8E3" box="[600,665,1821,1847]" italics="true" pageId="4" pageNumber="5">et al.</emphasis>
|
||
, 2012
|
||
</bibRefCitation>
|
||
</taxonomicName>
|
||
.
|
||
<emphasis id="B90AC640FFCD8669FD61AE16FC9DF8E3" bold="true" box="[765,794,1821,1847]" pageId="4" pageNumber="5">A.</emphasis>
|
||
NMW.Z.2009.027.0003, whole specimen, dorsal view (scale bar 1 mm).
|
||
<emphasis id="B90AC640FFCD8669FE4BAE4AFE75F88F" bold="true" box="[471,498,1857,1883]" pageId="4" pageNumber="5">B.</emphasis>
|
||
NMW.Z.2009.027.0005, anterior end, ventrolateral view (scale bar 50 µm).
|
||
<emphasis id="B90AC640FFCD8669FF21AE6FFF5DF8AA" bold="true" box="[189,218,1892,1918]" pageId="4" pageNumber="5">C.</emphasis>
|
||
Notochaetae (scale bar 10 µm).
|
||
<emphasis id="B90AC640FFCD8669FDE9AE6FFD15F8AA" bold="true" box="[629,658,1892,1918]" pageId="4" pageNumber="5">D.</emphasis>
|
||
Neurochaetae (scale bar 20 µm). – d = dorsal (cirrophore), la = lateral antenna, m = mouth appendage, p = palp, ps = palp scar, v = ventral (cirrophore); numbers indicate the segment.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BC11A52FFCC8668FF21AB2BFCAFFCA3" blockId="5.[189,1399,544,887]" pageId="5" pageNumber="6">
|
||
The lack of ventral cirri on segment 3 distinguishes
|
||
<emphasis id="B90AC640FFCC8668FC96AB2AFCD8FDEE" box="[778,863,544,570]" italics="true" pageId="5" pageNumber="6">D. Joeli</emphasis>
|
||
from most other
|
||
<taxonomicName id="4C7E61D1FFCC8668FBBDAB2AFB2DFDEE" box="[1057,1194,545,570]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AC640FFCC8668FBBDAB2AFB2DFDEE" box="[1057,1194,545,570]" italics="true" pageId="5" pageNumber="6">Dysponetus</emphasis>
|
||
</taxonomicName>
|
||
species. The only other species with this characteristic are
|
||
<taxonomicName id="4C7E61D1FFCC8668FD04AB4FFC31FD8A" authority="Day, 1954" authorityName="Day" authorityYear="1954" box="[664,950,579,606]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="bidentatus">
|
||
<emphasis id="B90AC640FFCC8668FD04AB4FFCB1FD89" box="[664,822,579,605]" italics="true" pageId="5" pageNumber="6">D. bidentatus</emphasis>
|
||
<bibRefCitation id="EFEF67A3FFCC8668FCA1AB4FFC31FD8A" author="Day J. H." box="[829,950,579,606]" pageId="5" pageNumber="6" pagination="1 - 35" refId="ref4161" refString="Day J. H. 1954. The Polychaeta of Tristan da Cunha. Results of the Norwegian Scientific Expedition to Tristan da Cunha, 1937 - 1938, 29: 1 - 35." type="journal article" year="1954">Day, 1954</bibRefCitation>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C7E61D1FFCC8668FC58AB4FFBF3FD89" authorityName="Dahlgren" authorityYear="1996" box="[964,1140,579,605]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="bipapillatus">
|
||
<emphasis id="B90AC640FFCC8668FC58AB4FFBF3FD89" box="[964,1140,579,605]" italics="true" pageId="5" pageNumber="6">D. bipapillatus</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C7E61D1FFCC8668FB31AB4FFAE8FD89" authorityName="Dahlgren" authorityYear="1996" box="[1197,1391,579,605]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="macroculatus">
|
||
<emphasis id="B90AC640FFCC8668FB31AB4FFAE8FD89" box="[1197,1391,579,605]" italics="true" pageId="5" pageNumber="6">D. macroculatus</emphasis>
|
||
</taxonomicName>
|
||
, although
|
||
<taxonomicName id="4C7E61D1FFCC8668FEB1AB6CFE4AFD54" authorityName="Day" authorityYear="1954" box="[301,461,614,640]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="bidentatus">
|
||
<emphasis id="B90AC640FFCC8668FEB1AB6CFE4AFD54" box="[301,461,614,640]" italics="true" pageId="5" pageNumber="6">D. bidentatus</emphasis>
|
||
</taxonomicName>
|
||
lacks ventral cirri on segment 2 also (
|
||
<bibRefCitation id="EFEF67A3FFCC8668FC01AB6CFB9EFD55" author="Day J. H." box="[925,1049,614,641]" pageId="5" pageNumber="6" pagination="1 - 35" refId="ref4161" refString="Day J. H. 1954. The Polychaeta of Tristan da Cunha. Results of the Norwegian Scientific Expedition to Tristan da Cunha, 1937 - 1938, 29: 1 - 35." type="journal article" year="1954">Day 1954</bibRefCitation>
|
||
). The presence or absence of ventral cirri on segment 3 is unknown for
|
||
<taxonomicName id="4C7E61D1FFCC8668FD2CAB81FBF7FD70" authority="(Webster & Benedict, 1887)" baseAuthorityName="Webster & Benedict" baseAuthorityYear="1887" box="[688,1136,649,676]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="hebes">
|
||
<emphasis id="B90AC640FFCC8668FD2CAB81FC9FFD70" box="[688,792,650,676]" italics="true" pageId="5" pageNumber="6">D. hebes</emphasis>
|
||
(
|
||
<bibRefCitation id="EFEF67A3FFCC8668FCBBAB82FBE1FD70" author="Webster H. E. & Benedict J. E." box="[807,1126,649,676]" pageId="5" pageNumber="6" pagination="707 - 758" refId="ref4780" refString="Webster H. E. & Benedict J. E. 1887. The Annelida Chaetopoda, from Eastport, Maine. Annual Report of the United States Commission of Fish and Fisheries, Washington, vol. for 1885: 707 - 758, pls 1 - 8. http: // docs. lib. noaa. gov / rescue / cof / COF _ 1885. PDF" type="journal article" year="1887">Webster & Benedict, 1887</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
; however, this species differs considerably by having a double mouth appendage as opposed to single, and sphaerical not elongated palps. With the revised character for segment 3, the species key in Olivier
|
||
<emphasis id="B90AC640FFCC8668FB39ABDAFB67FD3E" box="[1189,1248,720,746]" italics="true" pageId="5" pageNumber="6">et al.</emphasis>
|
||
would place
|
||
<emphasis id="B90AC640FFCC8668FF21ABFFFE91FCD9" box="[189,278,755,781]" italics="true" pageId="5" pageNumber="6">D. Joeli</emphasis>
|
||
with both
|
||
<taxonomicName id="4C7E61D1FFCC8668FE0BABFFFDCFFCD9" authorityName="Dahlgren" authorityYear="1996" box="[407,584,755,781]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="bipapillatus">
|
||
<emphasis id="B90AC640FFCC8668FE0BABFFFDCFFCD9" box="[407,584,755,781]" italics="true" pageId="5" pageNumber="6">D. bipapillatus</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C7E61D1FFCC8668FD18ABFFFCCFFCD9" authorityName="Dahlgren" authorityYear="1996" box="[644,840,755,781]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="macroculatus">
|
||
<emphasis id="B90AC640FFCC8668FD18ABFFFCCFFCD9" box="[644,840,755,781]" italics="true" pageId="5" pageNumber="6">D. macroculatus</emphasis>
|
||
</taxonomicName>
|
||
. The latter two species are distinguished in the key according to the relative size of the eyes; however, this is not a good character as the eye pigments degrade in alcohol and disappear over time – as is already evident in the
|
||
<typeStatus id="54C5A4F0FFCC8668FB93AA31FBC5FC80" box="[1039,1090,826,852]" pageId="5" pageNumber="6">type</typeStatus>
|
||
specimens. A new revised key to the 12 species of the genus is provided below.
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCC8668FF21AA94FB53FC2B" blockId="5.[189,1399,926,1023]" pageId="5" pageNumber="6">
|
||
<taxonomicName id="4C7E61D1FFCC8668FF21AA94FE06FC6C" authority="Joeli" authorityName="Joeli" box="[189,385,926,952]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AC640FFCC8668FF21AA94FE06FC6C" box="[189,385,926,952]" italics="true" pageId="5" pageNumber="6">Dysponetus Joeli</emphasis>
|
||
</taxonomicName>
|
||
is a much larger species than both
|
||
<taxonomicName id="4C7E61D1FFCC8668FC80AA94FC4BFC6C" authorityName="Dahlgren" authorityYear="1996" box="[796,972,926,952]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="bipapillatus">
|
||
<emphasis id="B90AC640FFCC8668FC80AA94FC4BFC6C" box="[796,972,926,952]" italics="true" pageId="5" pageNumber="6">D. bipapillatus</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C7E61D1FFCC8668FB99AA94FB40FC6C" authorityName="Dahlgren" authorityYear="1996" box="[1029,1223,926,952]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="macroculatus">
|
||
<emphasis id="B90AC640FFCC8668FB99AA94FB40FC6C" box="[1029,1223,926,952]" italics="true" pageId="5" pageNumber="6">D. macroculatus</emphasis>
|
||
</taxonomicName>
|
||
. Even the
|
||
<typeStatus id="54C5A4F0FFCC8668FAD8AA94FAF0FC6D" box="[1348,1399,927,953]" pageId="5" pageNumber="6">type</typeStatus>
|
||
specimens, described as ‘small’ (ranging from
|
||
<quantity id="4C86B7B7FFCC8668FD78AACAFCDCFC08" box="[740,859,961,988]" metricMagnitude="-3" metricUnit="m" metricValue="3.75" metricValueMax="4.0" metricValueMin="3.5" pageId="5" pageNumber="6" unit="mm" value="3.75" valueMax="4.0" valueMin="3.5">3.5–4 mm</quantity>
|
||
in length, incomplete) and smaller than those from the
|
||
<collectingRegion id="49BAD4B0FFCC8668FEB5AAEEFE4DFC2B" box="[297,458,997,1023]" country="United Kingdom" name="Isles of Scilly" pageId="5" pageNumber="6">Isles of Scilly</collectingRegion>
|
||
, were 2–3 times the size of each of the latter species, respectively.
|
||
</paragraph>
|
||
<paragraph id="8BC11A52FFCC8668FF21AD2CFE45FA33" blockId="5.[189,1399,1062,1511]" pageId="5" pageNumber="6">
|
||
<taxonomicName id="4C7E61D1FFCC8668FF21AD2CFE04FB94" authority="Joeli" authorityName="Joeli" box="[189,387,1062,1088]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AC640FFCC8668FF21AD2CFE04FB94" box="[189,387,1062,1088]" italics="true" pageId="5" pageNumber="6">Dysponetus Joeli</emphasis>
|
||
</taxonomicName>
|
||
is most similar to
|
||
<taxonomicName id="4C7E61D1FFCC8668FDFFAD2CFC93FB94" authorityName="Dahlgren" authorityYear="1996" box="[611,788,1062,1088]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="bipapillatus">
|
||
<emphasis id="B90AC640FFCC8668FDFFAD2CFC93FB94" box="[611,788,1062,1088]" italics="true" pageId="5" pageNumber="6">D. bipapillatus</emphasis>
|
||
</taxonomicName>
|
||
from the Mediterranean, sharing all of the obvious characteristics. The paired papillae on segment 8 described for
|
||
<taxonomicName id="4C7E61D1FFCC8668FC4EAD41FB0FFBB7" authorityName="Dahlgren" authorityYear="1996" box="[978,1160,1097,1123]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="bipapillatus">
|
||
<emphasis id="B90AC640FFCC8668FC4EAD41FB0FFBB7" box="[978,1160,1097,1123]" italics="true" pageId="5" pageNumber="6">D. bipapillatus</emphasis>
|
||
</taxonomicName>
|
||
were not observed on any of the
|
||
<emphasis id="B90AC640FFCC8668FEF4AD66FE44FB52" box="[360,451,1132,1158]" italics="true" pageId="5" pageNumber="6">D. Joeli</emphasis>
|
||
specimens; however, these appendages were only seen on a few specimens of
|
||
<taxonomicName id="4C7E61D1FFCC8668FF21AD9AFEE9FB7E" authorityName="Dahlgren" authorityYear="1996" box="[189,366,1168,1194]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="bipapillatus">
|
||
<emphasis id="B90AC640FFCC8668FF21AD9AFEE9FB7E" box="[189,366,1168,1194]" italics="true" pageId="5" pageNumber="6">D. bipapillatus</emphasis>
|
||
</taxonomicName>
|
||
and are thus not a good character for comparison. In his paper,
|
||
<bibRefCitation id="EFEF67A3FFCC8668FBFAAD9BFAAEFB7F" author="Dahlgren T. G." box="[1126,1321,1168,1195]" pageId="5" pageNumber="6" pagination="575 - 585" refId="ref4065" refString="Dahlgren T. G. 1996. Two new species of Dysponetus (Polychaeta: Chrysopetalidae) from Italy and Papua New Guinea. Proceedings of the Biological Society of Washington 109: 575 - 585. http: // www. biodiversitylibrary. org / item / 107744 # page / 599 / mode / 1 up" type="journal article" year="1996">Dahlgren (1996)</bibRefCitation>
|
||
stated that the specimens, though small, were considered mature adults due to the presence of the paired papillae, interpreted as genital organs, and the development of the anterior segments. A comparison of the individual characters shows
|
||
<emphasis id="B90AC640FFCC8668FDFDADF1FD3CFAC7" box="[609,699,1273,1299]" italics="true" pageId="5" pageNumber="6">D. Joeli</emphasis>
|
||
to possess twice as many neurochaetae as
|
||
<taxonomicName id="4C7E61D1FFCC8668FB58ADF1FAF1FAC7" authorityName="Dahlgren" authorityYear="1996" box="[1220,1398,1273,1299]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="bipapillatus">
|
||
<emphasis id="B90AC640FFCC8668FB58ADF1FAF1FAC7" box="[1220,1398,1273,1299]" italics="true" pageId="5" pageNumber="6">D. bipapillatus</emphasis>
|
||
</taxonomicName>
|
||
across all segments (20–26 compared to 9–13), more numerous denticles on the notochaetae (15–20 as opposed to 10–15) and a shorter pygidial projection (
|
||
<quantity id="4C86B7B7FFCC8668FCBCAC4BFCEAFA8E" box="[800,877,1344,1370]" metricMagnitude="-2" metricUnit="m" metricValue="4.0" pageId="5" pageNumber="6" unit="mm" value="40.0">40 µm</quantity>
|
||
versus
|
||
<quantity id="4C86B7B7FFCC8668FC5FAC34FB95FA8E" box="[963,1042,1343,1370]" metricMagnitude="-2" metricUnit="m" metricValue="5.0" pageId="5" pageNumber="6" unit="mm" value="50.0">50 µm</quantity>
|
||
), the last character particularly noticeable in relation to the larger body size of
|
||
<emphasis id="B90AC640FFCC8668FC8DAC6FFCEAFAA9" box="[785,877,1379,1405]" italics="true" pageId="5" pageNumber="6">D. Joeli</emphasis>
|
||
. Similarly, the number of neurochaetae in
|
||
<emphasis id="B90AC640FFCC8668FF21AC8CFE94FA74" box="[189,275,1414,1440]" italics="true" pageId="5" pageNumber="6">D. Joeli</emphasis>
|
||
is greater than the 19–22 found on
|
||
<taxonomicName id="4C7E61D1FFCC8668FD35AC8CFCEDFA74" authorityName="Dahlgren" authorityYear="1996" box="[681,874,1414,1440]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="macroculatus">
|
||
<emphasis id="B90AC640FFCC8668FD35AC8CFCEDFA74" box="[681,874,1414,1440]" italics="true" pageId="5" pageNumber="6">D. macroculatus</emphasis>
|
||
</taxonomicName>
|
||
, and, in general, the former species is a much larger animal than the latter, being 2–3 times as long at maturity (as evidenced by the presence of eggs in specimens of both).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |