255 lines
25 KiB
XML
255 lines
25 KiB
XML
<document id="3F3DFFBD39FA0D6020421A96667AE97C" ID-CLB-Dataset="26806" ID-DOI="http://dx.doi.org/10.3897/zookeys.845.32428" ID-GBIF-Dataset="3733ef1e-8696-44f1-99d7-d473c509608c" ID-PMC="PMC6531415" ID-Pensoft-Pub="1313-2970-845-1" ID-PubMed="31148919" ID-ZooBank="F05BDFEC4C4A4F2296854AC2655B973D" ModsDocAuthor="" ModsDocDate="2019" ModsDocID="1313-2970-845-1" ModsDocOrigin="ZooKeys 845" ModsDocTitle="Systematic re-structure and new species of Sphaerodoridae (Annelida) after morphological revision and molecular phylogenetic analyses of the North East Atlantic fauna" checkinTime="1557997611963" checkinUser="pensoft" docAuthor="Capa, Maria, Nygren, Arne, Parapar, Julio, Bakken, Torkild, Meissner, Karin & Moreira, Juan" docDate="2019" docId="5C0B724BF019D904EB58F661D0DA5EB9" docLanguage="en" docName="ZooKeys 845: 1-97" docOrigin="ZooKeys 845" docSource="http://dx.doi.org/10.3897/zookeys.845.32428" docTitle="Clavodorum fauchaldi Desbruyeres 1980" docType="treatment" docVersion="6" lastPageNumber="15" masterDocId="E3517C1098370D65FFC6FFB27231221C" masterDocTitle="Systematic re-structure and new species of Sphaerodoridae (Annelida) after morphological revision and molecular phylogenetic analyses of the North East Atlantic fauna" masterLastPageNumber="97" masterPageNumber="1" pageNumber="11" updateTime="1701384551626" updateUser="ExternalLinkService">
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<mods:title id="2DB8AC4D6E4A68B9845DAFF03C6AC72A">Systematic re-structure and new species of Sphaerodoridae (Annelida) after morphological revision and molecular phylogenetic analyses of the North East Atlantic fauna</mods:title>
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<mods:namePart id="A92C86351019317E6946B62A183D3198">Capa, Maria</mods:namePart>
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<mods:namePart id="B6DD64B1CEE9C30F30A68F1FA7AB4AA5">Nygren, Arne</mods:namePart>
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<mods:namePart id="2FFE536CA141C33321CED1A1CCB94D8D">Parapar, Julio</mods:namePart>
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<mods:namePart id="C3EC83DD5C6EF983FEE2B2DCB6FA78FD">Bakken, Torkild</mods:namePart>
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<mods:namePart id="1119585863BF3A877AF4780104EE51CD">Meissner, Karin</mods:namePart>
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<mods:namePart id="1F07BC1520CDE7CC211004F43E68CAB6">Moreira, Juan</mods:namePart>
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<mods:title id="B9304839C4B685022C4E07ED27EED113">ZooKeys</mods:title>
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<mods:date id="9BBDFA4876BECF90154F97ACD201817B">2019</mods:date>
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<mods:detail id="60538BDAFC47B6F9993401BE68390D8C" type="volume">
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<mods:number id="2B02B5E1D268E211D0E7422A6F1BBE96">845</mods:number>
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<mods:url id="7B1D2B5A9E701A91A5D80B87564C3933">http://dx.doi.org/10.3897/zookeys.845.32428</mods:url>
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<mods:classification id="92DA51858C9C3E2701485698476AF1F6">journal article</mods:classification>
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<mods:identifier id="55EAF89590345E53A2A8DAF72CFBA1EA" type="DOI">http://dx.doi.org/10.3897/zookeys.845.32428</mods:identifier>
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<mods:identifier id="51A981458C4FA82762173F76D38BC0EA" type="Pensoft-Pub">1313-2970-845-1</mods:identifier>
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<treatment id="5C0B724BF019D904EB58F661D0DA5EB9" ID-GBIF-Taxon="157167812" LSID="urn:lsid:plazi:treatment:5C0B724BF019D904EB58F661D0DA5EB9" httpUri="http://treatment.plazi.org/id/5C0B724BF019D904EB58F661D0DA5EB9" lastPageId="14" lastPageNumber="15" pageId="10" pageNumber="11">
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<subSubSection id="990B446B822DDAD54A91525D3D416E3E" pageId="10" pageNumber="11" type="nomenclature">
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<paragraph id="0C4014C391C761992B23B9F9295399EE" pageId="10" pageNumber="11">
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<taxonomicName id="7D702CE40EEBC17F1E59051D6D8DB9EB" ID-CoL="5YWX7" authority="Desbruyeres, 1980" authorityName="Desbruyeres" authorityYear="1980" class="Polychaeta" family="Sphaerodoridae" genus="Clavodorum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Clavodorum fauchaldi" order="Phyllodocida" pageId="10" pageNumber="11" phylum="Annelida" rank="species" species="fauchaldi">
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Clavodorum fauchaldi
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<normalizedToken id="E9358795E5A0548639F582A784794A5A" originalValue="Desbruyères">Desbruyeres</normalizedToken>
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||
, 1980
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</taxonomicName>
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||
Figs 2, 3, 4A, B, 5A
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="593C6D643B9DE40DC1E0BE1D3CCF6B47" pageId="10" pageNumber="11" type="reference_group">
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||
<paragraph id="BC4438F7F61840FAC393781DEB8942FB" pageId="10" pageNumber="11">
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||
<taxonomicName id="6BDBAACE2C208D6BD48F6D291486B54C" class="Polychaeta" family="Sphaerodoridae" genus="Clavodorum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Clavodorum fauchaldi" order="Phyllodocida" pageId="10" pageNumber="11" phylum="Annelida" rank="species" species="fauchaldi">Clavodorum fauchaldi</taxonomicName>
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<normalizedToken id="564EF017373D87F25A92EF8F62117B95" originalValue="Desbruyères">Desbruyeres</normalizedToken>
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, 1980: 110-112, fig. 1.
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="8B807EBA4EAC987742909BA9F08DC377" pageId="10" pageNumber="11" type="type locality">
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<paragraph id="F17DB5B75C3C00AC5C09B96AB188EF8E" pageId="10" pageNumber="11">Type locality.</paragraph>
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<paragraph id="6A8BBFCDDDA0368D9E89B88F24DA77FE" pageId="10" pageNumber="11">
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Banc Le Danois, Bay of Biscay,
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<geoCoordinate id="E142FC9B52B66966EAB9930691100129" direction="north" orientation="latitude" precision="92" value="44.086666">44°05.2'N</geoCoordinate>
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,
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<geoCoordinate id="AF55F7E675A48FEEBBF244297114A4C8" direction="west" orientation="longitude" precision="92" value="-4.3233333">4°19.4'W</geoCoordinate>
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, 1913 m.
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</paragraph>
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</subSubSection>
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<subSubSection id="8D99FE9EFF0A67F4ABCE6C84A7CC5D4A" pageId="10" pageNumber="11" type="materials_examined">
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<paragraph id="86E0938C93BD8676F696806109952C7D" pageId="10" pageNumber="11">Material examined.</paragraph>
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<paragraph id="750A069724165EBBA5372B7BCC44BE36" pageId="10" pageNumber="11">
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Holotype: MNHN POLY TYPE 1279, Bay of Biscay, Banc Le Danois,
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<geoCoordinate id="410BD5E1C0449C90E8F10BCCC6DECF8D" direction="north" orientation="latitude" precision="92" value="44.086666">44°05.2'N</geoCoordinate>
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,
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<geoCoordinate id="8575B402AF324DA0CDCEB001034A6B17" direction="west" orientation="longitude" precision="92" value="-4.3233333">4°19.4'W</geoCoordinate>
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, 1913 m, 1972.
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</paragraph>
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</subSubSection>
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<subSubSection id="90AFCD0DA3FCB77307CFDFA33D3740FA" pageId="10" pageNumber="11" type="materials_examined">
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<paragraph id="D3F5E4829A519C8E88BD1D4D26D2D300" pageId="10" pageNumber="11">Additional material.</paragraph>
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<paragraph id="951CA3E2D475F3F4805E0E4AF25D3827" pageId="10" pageNumber="11">
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(141 specs) Iceland: IINH 38781 (55 specs,5 on SEM stub),
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<geoCoordinate id="EDD1B25ABF7FA6CAF7D764BE72EB402C" direction="north" orientation="latitude" precision="9" value="62.341667">62°20.50'N</geoCoordinate>
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,
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<geoCoordinate id="62D0B73E5E782A5C9E6493DC2776E77B" direction="west" orientation="longitude" precision="9" value="-16.988333">16°59.30'W</geoCoordinate>
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, 2074 m, 29 Aug 1995; IINH 38782 (25 specs -6 on SEM stub-),
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<geoCoordinate id="6F31B3DE9EF23DBA356EDE775334A5FC" direction="north" orientation="latitude" precision="9" value="61.837">61°50.22'N</geoCoordinate>
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,
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<geoCoordinate id="78996AAF1D22C9ED12E878B09F7365F4" direction="west" orientation="longitude" precision="9" value="-16.881">16°52.86'W</geoCoordinate>
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, 2270 m, 29 Aug 1995; IINH 38783 (5 specs),
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<geoCoordinate id="1FADF8C9B9EA695F5FDE40DE46FE3DA5" direction="north" orientation="latitude" precision="9" value="65.26017">65°15.61'N</geoCoordinate>
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,
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<geoCoordinate id="2074A31C16B8B3B4CE583313FD9B3493" direction="west" orientation="longitude" precision="9" value="-28.835833">28°50.15'W</geoCoordinate>
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, 1300 m, 25 Aug 1996; IINH 38784 (2 specs),
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<geoCoordinate id="4BFEA896FAE578CDCD001A10ED87387E" direction="north" orientation="latitude" precision="9" value="60.033833">60°02.03'N</geoCoordinate>
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,
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<geoCoordinate id="74471A1F0B91FBEA318F9E9D53FB72F6" direction="west" orientation="longitude" precision="9" value="-22.452833">22°27.17'W</geoCoordinate>
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, 2537 m, 29 July 2000; IINH 38785 (3 specs),
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<geoCoordinate id="6369F9857F0C7FF392F7163D85B67092" direction="north" orientation="latitude" precision="9" value="62.413334">62°24.80'N</geoCoordinate>
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,
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<geoCoordinate id="37092045B4BFB5E4CC59B24E6484CAD1" direction="west" orientation="longitude" precision="9" value="-19.81">19°48.60'W</geoCoordinate>
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, 1780 m, 13 Sep 2001; IINH 38786 (1 spec.),
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<geoCoordinate id="B90DAF3ADA9CDE5D61BCF08A8ED1459D" direction="north" orientation="latitude" precision="9" value="62.8">62°48.00'N</geoCoordinate>
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,
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<geoCoordinate id="8E960832090BAF54BF836DEBD23B916E" direction="west" orientation="longitude" precision="9" value="-16.246666">16°14.80'W</geoCoordinate>
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, 1813 m, 16 Sep 2001; IINH 38787 (30 specs),
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<geoCoordinate id="563A92637E614EF28DB37CF5AA2B2316" direction="north" orientation="latitude" precision="9" value="62.04">62°02.40'N</geoCoordinate>
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,
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<geoCoordinate id="0E84CAC5E2DCF48A8FEE2063D36ED22E" direction="west" orientation="longitude" precision="9" value="-19.645166">19°38.71'W</geoCoordinate>
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, 1678 m, 3 Sep 2002; IINH 38788 (18 specs),
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<geoCoordinate id="5DBC6155BE1E00BCCB3E4B363DD82F29" direction="north" orientation="latitude" precision="9" value="62.519">62°31.14'N</geoCoordinate>
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,
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<geoCoordinate id="93EE643587319DB8EA9E872FE4E5C20A" direction="west" orientation="longitude" precision="9" value="-17.1645">17°09.87'W</geoCoordinate>
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, 1940 m, 7 Sep 2002; IINH 38789 (1 spec.),
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<geoCoordinate id="8034B9B3F80938A51B4B62A25861A2BD" direction="north" orientation="latitude" precision="9" value="62.7865">62°47.19'N</geoCoordinate>
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,
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<geoCoordinate id="724C6A378D906531D9D246B6FE131C17" direction="west" orientation="longitude" precision="9" value="-17.3395">17°20.37'W</geoCoordinate>
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, 1662 m, 8 Sep 2002; IINH 38790 (1 spec.),
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<geoCoordinate id="01677B0D5D35FC3C68EB970A55704A76" direction="north" orientation="latitude" precision="9" value="63.503666">63°30.22'N</geoCoordinate>
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,
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<geoCoordinate id="71445B1DA8F886B0EB113BB0C64AE708" direction="west" orientation="longitude" precision="9" value="-29.64">29°38.40'W</geoCoordinate>
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, 2233 m, 5 Sep 2003; ZMBN 127252 (1 spec.), South Iceland, 61°38.2'N16°27.7'W, 2355 m, 5 Jun 1983.
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</paragraph>
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</subSubSection>
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<subSubSection id="899BD874E78C4A9949A49E27A7918E3F" pageId="10" pageNumber="11" type="diagnosis">
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<paragraph id="CC0EB18D1552617FB77720E6F01B3181" pageId="10" pageNumber="11">Diagnosis.</paragraph>
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<paragraph id="5D8AF2DB7394F81A53FD975D65788B02" pageId="10" pageNumber="11">Body ellipsoid. Median antenna similar in length to lateral antennae; lateral antennae with three or four basal papillae each; antenniform papillae absent; palps with 2-3 basal papillae each. Dorsal macrotubercles stalked, without terminal papilla, arranged in five longitudinal rows in first 2-3 and last chaetigers, and six longitudinal rows in middle chaetigers; stalk and tubercle of similar length. Additional hemispherical papillae (ca. 10-12) distributed over dorsum in two irregular transverse rows, following a zig-zag pattern. Two rows of stalked smaller tubercles along ventrum, with two tubercles near each parapodium. Parapodia with acicular lobe from chaetiger 1, and large ventral cirri, surpassing length of acicular lobe. One ventral papilla from chaetiger 2-4; and one terminal postchaetal papilla from chaetiger 7-10.</paragraph>
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</subSubSection>
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<subSubSection id="29E8352F97B63741AAB882CAD3835F9C" lastPageId="14" lastPageNumber="15" pageId="10" pageNumber="11" type="description">
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<paragraph id="38654B707E002AFDA6A13B9AEB652E1E" pageId="10" pageNumber="11">Re-description of holotype.</paragraph>
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<paragraph id="A936122341F261F557BDDDC80205A6A8" pageId="10" pageNumber="11">Measurements and general morphology. Holotype oval in shape, measuring 2.7 mm long, 0.4 mm wide for 24 chaetigers.</paragraph>
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<paragraph id="816280E6C51589038B754FA2897DFEB8" pageId="11" pageNumber="12">
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<pageBreakToken id="5DDC3EC1ED4D53ED70BCC3F40E8F92D1" pageId="11" pageNumber="12" start="start">Head</pageBreakToken>
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. Head fused to first chaetiger, with elongated and digitiform prostomial appendages, reaching the end of head (Figs 2
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<normalizedToken id="43FFDD6AE9FBBD82479094FFC9B78F3E" originalValue="A–C">A-C</normalizedToken>
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, 3A). Palps and lateral antennae similar in length, with 2-4 digitiform, shorter and slightly thinner basal papillae. Median antenna, similar in length to lateral, lacking spurs or basal papillae (Fig. 2B). Tentacular cirri ca. half of the length of prostomial appendages and thinned. Some elongated papillae distributed randomly on posterior part of head (Fig. 3B). Proboscis retracted in holotype and muscular pharynx through segments 3-6.
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</paragraph>
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<caption id="66E73A6263B64441C0E95897C32486C6" pageId="11" pageNumber="12">
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<paragraph id="1CB70741FD001F542662B25ADEC755B2" pageId="11" pageNumber="12">
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Figure 2.
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<taxonomicName id="D65A009B34512467DA09B7605E2F828C" class="Polychaeta" family="Sphaerodoridae" genus="Clavodorum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Clavodorum fauchaldi" order="Phyllodocida" pageId="11" pageNumber="12" phylum="Annelida" rank="species" species="fauchaldi">Clavodorum fauchaldi</taxonomicName>
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(IINH 38781: A, D; IINH 38786: B, C), line drawings. A Anterior end, dorsal view B anterior end, ventral view C anterior end, lateral view D female, chaetigers 7-9, ventral view, showing genital (?) opening.
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</paragraph>
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</caption>
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<caption id="C43825023DC7E5DD87091AF93DA70254" pageId="11" pageNumber="12">
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<paragraph id="499563C70BA094B10204D8287E32BDFC" pageId="11" pageNumber="12">
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Figure 3.
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<taxonomicName id="83502FD0AB179D5ECDCB19F2B77A8B91" class="Polychaeta" family="Sphaerodoridae" genus="Clavodorum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Clavodorum fauchaldi" order="Phyllodocida" pageId="11" pageNumber="12" phylum="Annelida" rank="species" species="fauchaldi">Clavodorum fauchaldi</taxonomicName>
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(IINH 38781:
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<normalizedToken id="503C4F21EE5288BD1C2FCFBD92722ECB" originalValue="A–E">A-E</normalizedToken>
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,
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<normalizedToken id="A971B43371A03392BC823C697466F5CB" originalValue="K–M">K-M</normalizedToken>
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; IINH 38782:
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<normalizedToken id="3DFBAFF817CA5D5581485EBB69682248" originalValue="F–J">F-J</normalizedToken>
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), scanning electron micrographs. A Complete specimen, lateral view B anterior end, dorsal view C anterior end, ventral view D mid-body chaetigers, arrangement of dorsal macrotubercles and papillae E dorsal macrotubercles and papillae, detail F complete specimen, ventral view G mid-body chaetigers, arrangement of ventral tubercles H, I mid-body chaetigers, parapodia and ventral tubercles J mid-body parapodium, anterior view
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<normalizedToken id="8414A16EBA6559ABC3BE9504E9A9CA7E" originalValue="K–M">K-M</normalizedToken>
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compound chaetae.
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</paragraph>
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</caption>
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<paragraph id="6A8551A1246F1E18C9CD5BFBC98565E0" lastPageId="13" lastPageNumber="14" pageId="12" pageNumber="13">
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<pageBreakToken id="EA30B54DFC7C203067B8E153190E0B24" pageId="12" pageNumber="13" start="start">Tubercles</pageBreakToken>
|
||
. Body with stalked dorsal macrotubercles distributed in five longitudinal rows, on three anterior and two posterior segments and six rows in segments in between, although some detached in holotype; one transverse row per segment (Figs 3A, D, E, 4A). Stalk ca. the length of the macrotubercle, the latter oval, smooth, lacking terminal papilla
|
||
<pageBreakToken id="332C9E97B7EA53FEE78A6BEB9E4D3906" pageId="13" pageNumber="14" start="start">(</pageBreakToken>
|
||
Figs 2A, D, 3D, E). Dorsal papillae in two irregular transverse rows, 4-6 papillae each per segment, rounded in shape (Fig. 4A). Ventral surface with two longitudinal rows of oval and stalked tubercles, arranged in two transverse rows per segment; anterior row with smaller tubercles than those of posterior row within each segment (Figs 2D, 3
|
||
<normalizedToken id="EEEF23346A18EA19268BF6D5A31BA11D" originalValue="F–I">F-I</normalizedToken>
|
||
, 4B).
|
||
</paragraph>
|
||
<caption id="F8DFC2E8A78D0C66C6C676FEC6151FCF" pageId="13" pageNumber="14">
|
||
<paragraph id="D52C3B0BB57F96E36E20E98BBBC41CA5" pageId="13" pageNumber="14">
|
||
Figure 4. Stylized drawings of selected dorsal (left) and ventral (right) segments of species of
|
||
<taxonomicName id="B7CBCDCCE3ACFE7AD9D9D6C36EF93D71" class="Polychaeta" family="Sphaerodoridae" genus="Clavodorum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Clavodorum" order="Phyllodocida" pageId="13" pageNumber="14" phylum="Annelida" rank="genus">Clavodorum</taxonomicName>
|
||
,
|
||
<taxonomicName id="E317D008B3BD2A9E0DC8E506D82E0572" class="Polychaeta" family="Sphaerodoridae" genus="Commensodorum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Commensodorum" order="Phyllodocida" pageId="13" pageNumber="14" phylum="Annelida" rank="genus">Commensodorum</taxonomicName>
|
||
,
|
||
<taxonomicName id="6EC1B03F679A74ADFF026C0E7A2436BC" class="Polychaeta" family="Sphaerodoridae" genus="Euritmia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Euritmia" order="Phyllodocida" pageId="13" pageNumber="14" phylum="Annelida" rank="genus">Euritmia</taxonomicName>
|
||
and
|
||
<taxonomicName id="2FF3E84748869EF03B1F34E589F832BE" class="Polychaeta" family="Sphaerodoridae" genus="Geminofilum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Geminofilum" order="Phyllodocida" pageId="13" pageNumber="14" phylum="Annelida" rank="genus">Geminofilum</taxonomicName>
|
||
gen. n., showing number and arrangement of epithelial tubercles and papillae.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="975424D0669E01DB3372394243262B6D" lastPageId="14" lastPageNumber="15" pageId="13" pageNumber="14">
|
||
Parapodia. Parapodia cylindrical, longer than wide, similar in length along body, with almost similar in length ventral cirri, digitiform or slightly tapering in width dis
|
||
<pageBreakToken id="174FAA27099473B500EDB9537F2F11E9" pageId="14" pageNumber="15" start="start">tally</pageBreakToken>
|
||
, well surpassing length of acicular lobe (Figs 2D, 3
|
||
<normalizedToken id="D05E88FACAC3287F18E4A7B897921407" originalValue="G–J">G-J</normalizedToken>
|
||
). One large and rounded parapodial papilla from segment 2, located on the distal half of the antero-ventral surface of parapodia. One terminal papilla present from chaetiger 8, digitiform (Fig. 5A), and increasing its size to posterior chaetigers. One straight acicula supporting each parapodia, curved in first chaetigers.
|
||
</paragraph>
|
||
<caption id="FC5D5E03074B4CD4E0976E62F2387A47" pageId="14" pageNumber="15">
|
||
<paragraph id="5B41BFB7C0EE88723429AF6881894383" pageId="14" pageNumber="15">Figure 5. Stylized drawings of parapodia, showing the relative position and arrangement of parapodial lobes, cirri, and papillae, in mid-body chaetigers of all sphaerodorid species reported in the North East Atlantic waters.</paragraph>
|
||
</caption>
|
||
<paragraph id="F9A6E92434B6CFF2970EA8F0407EA053" pageId="14" pageNumber="15">
|
||
Chaetae. All chaetae compound, ca. six in first segment to eight in middle chaetigers; with long, straight, unidentate and finally serrated blades. Blades similar in length between and within chaetigers, ca. ten times longer than maximum blade width (Fig. 3
|
||
<normalizedToken id="4E6945EC12EA6F22F42A68F87B7DB61D" originalValue="K–M">K-M</normalizedToken>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="6EEC29DC513983A572BB6C96AD76475F" pageId="14" pageNumber="15">Pygidium. Paired anal cirri similar to dorsal macrotubercles and ventral digitiform anal papilla similar in length to lateral cirri.</paragraph>
|
||
<paragraph id="5A3E0336EE34CEC08CC219E640BD6F27" pageId="14" pageNumber="15">Reproductive features. Gametes or sexual structures not observed in holotype.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="86E88642D3E0D76C87B041A2D685C687" pageId="14" pageNumber="15" type="variation">
|
||
<paragraph id="17F8549B79C15BFF8FA5E46CBCDDDAE4" pageId="14" pageNumber="15">Variation.</paragraph>
|
||
<paragraph id="141AC52866094E5BABBFADD26EA89CF7" pageId="14" pageNumber="15">Intraspecific variation was assessed by examining a number of samples collected during the BIOICE project, in Iceland. Largest specimen examined 3.75 mm long, 1 mm wide and 28 chaetigers. Most Icelandic specimens measuring ca. 2 mm in length, 0.65 mm in width with 18-24 chaetigers. Median antenna usually as long as lateral antennae, depending on the state of contraction of specimens. Tentacular cirri shorter than prostomial appendages and provided each with two short papillae near the base. One dorsal transverse row of eight longer papillae (clavate or digitiform) behind median antenna and running at level of tentacular cirri; several digitiform papillae surrounding the mouth at each side (usually including one bifid and sometimes one trifid). Muscular pharynx extending over three chaetigers (5-7). In some elongated specimens stalk seems slightly longer than macrotubercle. Postchaetal papilla present from chaetiger 7 to last chaetiger. Parapodial antero-ventral papilla present from chaetigers 2-4, becoming more lateral in chaetigers 8-10; rounded to elongated in shape. Acicula is straight and chaetae blades show some gradation in length, being ventral ones slightly shorter in middle and posterior chaetigers. Several females with oocytes and males observed; both sexes show genital openings near the base of parapodia between chaetigers 8 and 9 (Fig. 4B).</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="EAC0EDB7566B3E696D3B4CBE44A3F53F" pageId="14" pageNumber="15" type="remarks">
|
||
<paragraph id="CB8892809B87A4C0F55F0A4EA561991A" pageId="14" pageNumber="15">Remarks.</paragraph>
|
||
<paragraph id="E8EC3C8F4FC75E6E8B2E000B7D5B917C" pageId="14" pageNumber="15">The original description indicates that at least two specimens were found (holotype and another used for SEM) but only the holotype has been deposited in a museum collection (MNHN). All the specimens examined from Iceland bear three basal papillae on lateral antennae, variation that has been added into the diagnoses, at least one or two emerge directly from the base of antennae and the rest probably from the surroundings of the base. This species was described as new due to the uniqueness of its parapodia, with postchaetal lobe absent on anterior segments. However, we consider here that the postchaetal lobe is a postchaetal papilla. Furthermore, both females and males from Iceland samples show a pair of ventral genital openings (Fig. 2D); these may be interpreted as sexual structures and therefore this is the first mention for the genus of such features.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="FF2DF80E52CDEAE339D58E8507F62450" pageId="14" pageNumber="15" type="distribution">
|
||
<paragraph id="B88E7B7232603D0030E3F55832921176" pageId="14" pageNumber="15">Distribution.</paragraph>
|
||
<paragraph id="C7C7B89069DE304BDF472D8D22A2546D" pageId="14" pageNumber="15">
|
||
Iceland (present study), Bay of Biscay (
|
||
<bibRefCitation id="D1C51893A12FF34902086764A7C0DB9C" pageId="14" pageNumber="15">
|
||
<normalizedToken id="6599BAD2DF43FEB2D6BFE119B084591D" originalValue="Desbruyères">Desbruyeres</normalizedToken>
|
||
1980
|
||
</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="7FABE3DAD441F7FA1FCECC84A2CAE63F" pageId="14" pageNumber="15" type="habitat">
|
||
<paragraph id="521296B18C063B772A276786AB00F9F8" pageId="14" pageNumber="15">Habitat.</paragraph>
|
||
<paragraph id="0E9723FC91F3F5B63D8C51F37A2AA10A" pageId="14" pageNumber="15">
|
||
Bathyal soft bottoms (1300-2537 m) (
|
||
<bibRefCitation id="E0A666B6C7080277B9398992E8BE622D" pageId="14" pageNumber="15">
|
||
<normalizedToken id="9DF9633E8676B26DECA3615080B1B37F" originalValue="Desbruyères">Desbruyeres</normalizedToken>
|
||
1980
|
||
</bibRefCitation>
|
||
; this study).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |