287 lines
25 KiB
XML
287 lines
25 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.181.2712" ID-GBIF-Dataset="f7209d9f-eb78-4b29-ae1b-a47f89b0a287" ID-PMC="PMC3332017" ID-Pensoft-Pub="1313-2970-181-1" ID-PubMed="22539907" ModsDocAuthor="" ModsDocDate="2012" ModsDocID="1313-2970-181-1" ModsDocOrigin="ZooKeys 181" ModsDocTitle="A new species of Fauveliopsidae (Annelida) from the North Sea" checkinTime="1451249166567" checkinUser="pensoft" docAuthor="Zhadan, Anna & Atroshchenko, Margarita" docDate="2012" docId="1C71148DF6344BBB6D92D3880E06E9DD" docLanguage="en" docName="ZooKeys 181: 1-10" docOrigin="ZooKeys 181" docSource="http://dx.doi.org/10.3897/zookeys.181.2712" docTitle="Laubieriopsis norvegica Zhadan & Atroshchenko, 2012, sp. n." docType="treatment" docVersion="4" lastPageNumber="6" masterDocId="917BFFE4FF9EFFD19B46FF85FFF11F08" masterDocTitle="A new species of Fauveliopsidae (Annelida) from the North Sea" masterLastPageNumber="10" masterPageNumber="1" pageNumber="2" updateTime="1668153596693" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>A new species of Fauveliopsidae (Annelida) from the North Sea</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Zhadan, Anna</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Atroshchenko, Margarita</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2012</mods:date>
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<mods:detail type="volume">
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<mods:number>181</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>10</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.181.2712</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.181.2712</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-181-1</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152034464" LSID="urn:lsid:zoobank.org:act:5D46C0C3-6974-4683-81BF-C09964602392" httpUri="http://treatment.plazi.org/id/1C71148DF6344BBB6D92D3880E06E9DD" lastPageId="5" lastPageNumber="6" pageId="1" pageNumber="2">
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<subSubSection pageId="1" pageNumber="2" type="nomenclature">
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<paragraph pageId="1" pageNumber="2">
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<taxonomicName LSID="urn:lsid:zoobank.org:act:5D46C0C3-6974-4683-81BF-C09964602392" class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis norvegica" order="Terebellida" pageId="1" pageNumber="2" phylum="Annelida" rank="species" species="norvegica">Laubieriopsis norvegica</taxonomicName>
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<taxonomicNameLabel pageId="1" pageNumber="2">sp. n.</taxonomicNameLabel>
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Figs 234
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</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="2" type="reference_group">
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<paragraph pageId="1" pageNumber="2">
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<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis" order="Terebellida" pageId="1" pageNumber="2" phylum="Annelida" rank="genus">Laubieriopsis</taxonomicName>
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sp.
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<bibRefCitation author="Zhadan, AE" journalOrPublisher="Biology Bulletin" pageId="5" pageNumber="6" pagination="876 - 885" title="The morphology of Laubieriopsis sp. (Polychaeta, Fauveliopsidae) and the position of fauveliopsids in the polychaete system." url="10.1134/S1062359010090025" volume="37" year="2010">Zhadan and Atroshchenko 2010</bibRefCitation>
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: 876-885, Figs 1-4
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</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="2" type="type locality">
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<paragraph pageId="1" pageNumber="2">Type locality.</paragraph>
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<paragraph pageId="1" pageNumber="2">
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Norway, North Sea,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="60.878166">60°52.69'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="3.6746666">03°40.48'E</geoCoordinate>
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, 340 m, mud. Akvaplan-niva, Troll C stn. 21-4; 14.05.1998. coll. A. Sikorski.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="2" type="type material">
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<paragraph pageId="1" pageNumber="2">Type material.</paragraph>
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<paragraph pageId="1" pageNumber="2">
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Holotype female with 32 oocytes, 6.8 mm long; width in dorsal view on chaetiger 4-400
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, stored in 70% alcohol. Original label: "Spec.: Polychaeta indet., stn.: 21-4, Date: 14.05. Troll C 1998. Akvaplan-niva A.Sikorski". ZMMU
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<normalizedToken originalValue="№">NO</normalizedToken>
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W141 HOLOTYPE,
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<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis norvegica" order="Terebellida" pageId="1" pageNumber="2" phylum="Annelida" rank="species" species="norvegica">Laubieriopsis norvegica</taxonomicName>
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(printed label).
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</paragraph>
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<paragraph pageId="1" pageNumber="2">
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Paratypes: Akvaplan-niva Troll C stn. 21-4,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="60.878166">60°52.69'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="3.6746666">03°40.48'E</geoCoordinate>
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, 14.05.1998, 340 m, mud, one specimen without visible gametes, ZMMU
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<normalizedToken originalValue="№">NO</normalizedToken>
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W142. Akvaplan-niva Troll C stn. 19-3,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="60.809">60°48.54'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="3.6338334">03°38.03'E</geoCoordinate>
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, 14.05.1998, 334 m, three specimens, two without visible gametes, one female with 39 oocytes, ZMMU
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<normalizedToken originalValue="№">NO</normalizedToken>
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W143. Akvaplan-niva Troll C stn 1-5,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="60.910835">60°54.65'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="3.5658333">03°33.95'E</geoCoordinate>
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, 15.05.1998, 341 m, two specimens without visible gametes, ZMMU
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<normalizedToken originalValue="№">NO</normalizedToken>
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W144. Akvaplan-niva TOGI stn.10-4,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="60.576332">60°34.58'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="3.6556666">03°39.34'E</geoCoordinate>
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, 10.05.1998, 304 m, four specimens, three without visible gametes, one male with sperm, ZMMU
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<normalizedToken originalValue="№">NO</normalizedToken>
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W144. Akvaplan-niva TOGI stn.1-4,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="60.5765">60°34.59'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="3.6575">03°39.45'E</geoCoordinate>
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, 9.05.1998, 305 m, three specimens with small oocytes, ZMMU
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<normalizedToken originalValue="№">NO</normalizedToken>
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W146. Akvaplan-niva TOGI stn. 2-4,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="60.578667">60°34.72'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="3.6576667">03°39.46' E</geoCoordinate>
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, 9.05.1998, 305 m, one specimen, male with sperm, ZMMU
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<normalizedToken originalValue="№">NO</normalizedToken>
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W147. Akvaplan-niva Troll B, stn.32-3,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="60.822834">60°49.37'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="3.4663334">03°27.98'E</geoCoordinate>
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, 14.05.1998, 335 m, three specimens, two females with oocytes, one without visible gametes, ZMMU
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<normalizedToken originalValue="№">NO</normalizedToken>
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W148. Akvaplan-niva Troll B, stn. 21-3,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="60.773335">60°46.40'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="3.4418333">03°26.51'E</geoCoordinate>
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, 14.05.1998, 322 m, two specimens without visible gametes, ZMMU
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<normalizedToken originalValue="№">NO</normalizedToken>
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W149. Akvaplan-niva Troll B, stn.44-4,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="60.711334">60°42.68'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="3.5123334">03°30.74'E</geoCoordinate>
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, 14.05.1998, 319 m, one specimen without visible gametes, ZMMU
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<normalizedToken originalValue="№">NO</normalizedToken>
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W150.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="2" type="diagnosis">
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<paragraph pageId="1" pageNumber="2">Diagnosis.</paragraph>
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<paragraph pageId="1" pageNumber="2">Adult specimens with 22 chaetigers. First four chaetigers with sigmoidal acicular chaetae, neurochaetae often bidentate. Chaetigers 5-21 without acicular chaetae, with one thin capillary chaeta and one very small and thin additional chaeta in each ramus. Chaetiger 22 with one thick acicular notochaetae and three capillary neurochaetae. Two weltlike genital papillae present at posterior edge of segment 8.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="4" lastPageNumber="5" pageId="1" pageNumber="2" type="description">
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<paragraph pageId="1" pageNumber="2">Description.</paragraph>
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<paragraph pageId="1" pageNumber="2">
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Adult specimens 6-8 mm long and 0.35-0.4 mm wide with 22 chaetigers. Only one specimen has 23 chaetigers. Body slender, often
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<normalizedToken originalValue="c–shaped">c-shaped</normalizedToken>
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or s-shaped by fixation, colorless in preserved material. Four anteriormost chaetigers swollen, following segments cylindrical, without clear borders (Fig. 2A, 3A, B).
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</paragraph>
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<caption pageId="1" pageNumber="2">
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<paragraph pageId="1" pageNumber="2">
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Figure 2.
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<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis norvegica" order="Terebellida" pageId="1" pageNumber="2" phylum="Annelida" rank="species" species="norvegica">Laubieriopsis norvegica</taxonomicName>
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sp.n. A dorsal view of female with oocytes B parapodia of chaetiger 3 C parapodia of chaetiger 14 D anterolateral view of anterior end (prostomium visible) E dorsolateral view of posterior end. Scale (μm): A - 400, B, D, E - 100, C - 30.
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</paragraph>
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</caption>
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<caption pageId="1" pageNumber="2">
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<paragraph pageId="1" pageNumber="2">
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Figure 3.
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<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis norvegica" order="Terebellida" pageId="1" pageNumber="2" phylum="Annelida" rank="species" species="norvegica">Laubieriopsis norvegica</taxonomicName>
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sp.n., A entire view from the dorsal side B anterior end, ventral view C posterior end, ventral view D micropapillae E area of chaetigers 7-9, genital papillae. Scale (μm): A - 500;
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<normalizedToken originalValue="B–">B-</normalizedToken>
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200; C, E - 100;
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<normalizedToken originalValue="D–">D-</normalizedToken>
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50.
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</paragraph>
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</caption>
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<caption pageId="1" pageNumber="2">
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<paragraph pageId="1" pageNumber="2">
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Figure 4.
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<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis norvegica" order="Terebellida" pageId="1" pageNumber="2" phylum="Annelida" rank="species" species="norvegica">Laubieriopsis norvegica</taxonomicName>
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sp.n. A anterior end, lateral view B posterior end, ventro-lateral view C parapodia of chaetigers 2-3 D tip of neurochaeta enlarged E parapodia of chaetiger 12 F genital papilla and parapodia of chaetiger 9; neurochaetae are broken G, H sperm cell. Scale (μm): A, B - 100,
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<normalizedToken originalValue="C–">C-</normalizedToken>
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30, D - 3, E, F - 30, G - 10, H - 2. Abbreviation: cc accessory chaeta, ch1-ch4 chaetigers 1-4, ch8 chaetiger 8, ch9 chaetiger 9, gp genital papilla, ip interramal papilla, mp micropapilla, neu neurochaeta, nc notochaeta, oc oocyte, pe peristomium, pr prostomium
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</paragraph>
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</caption>
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<paragraph pageId="1" pageNumber="2">
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Cuticle thick (about 8
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<normalizedToken originalValue="μm">μm</normalizedToken>
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), smooth, with very thin ring wrinkles, bearing scattered minute inconspicuous micropapillae (Fig. 3D, 4C), visible under higher magnification and in SEM. Relatively larger micropapillae surrounding inverted parts - prostomium and pygidium (Fig. 4B).
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</paragraph>
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<paragraph pageId="1" pageNumber="2">Ventral nerve cord visible by transparency. Ganglia longitudinally elongated and indistinctly separated from each other.</paragraph>
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<paragraph pageId="1" pageNumber="2">Prostomium small, from round to triangular, lacking appendages, with ciliary nuchal organs, without eyes (Fig. 2D, 3B). In most specimens prostomium completely retracted into peristomium (Fig. 4A). Peristomium forms complete ring; it bears micropapillae.</paragraph>
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<paragraph lastPageId="2" lastPageNumber="3" pageId="1" pageNumber="2">
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Parapodia biramous, best developed on chaetigers 1-4 and hardly distinct on posteriormost segments except last one (22). Interramal papillae
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<normalizedToken originalValue="short–stalked">short-stalked</normalizedToken>
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, pyriform, situated midway between noto- and neuropodia (Fig. 3C, 4A, B, C, E, F). Two epidermal glands visible in each parapodium
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<pageBreakToken pageId="2" pageNumber="3" start="start">.</pageBreakToken>
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</paragraph>
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<paragraph pageId="2" pageNumber="3">Chaetigers 1-4 bear thick sigmoidal hirsute chaetae. Two chaetae in notopodia and four (2 long and 2 shorter ones) in neuropodia (Fig. 2B, 4C). Some specimens possess five instead of four neurochaetae in anterior segments. Neurochaetae mostly bidentate (Fig. 4D), notochaetae usually unidentate, sometimes slightly bidentate. Some specimens possess 3-4 bidentate neurochaetae whereas others have only 1-2 bidentate neurochaetae. Both short and long neurochaetae can be bidentate or unidentate. Two specimens have transitional fifth segment with chaetae more similar to acicular chaetae of anterior four segments than to thin capillary chaetae of rest of the body.</paragraph>
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<paragraph pageId="3" pageNumber="4">
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<pageBreakToken pageId="3" pageNumber="4" start="start">Chaetigers</pageBreakToken>
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5-21 bear one thin capillary chaeta and one accessory very short, thin and barely distinct capillary chaeta per ramus (Fig. 2C, 4E, F). Notopodial chaetae thinner and shorter than neuropodial ones; accessory chaetae in notopodia often absent.
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</paragraph>
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<paragraph pageId="3" pageNumber="4">Chaetiger 22 bears one thick acicular chaeta in notopodia and three capillary chaetae in neuropodia (Fig. 2E, 3C, 4B).</paragraph>
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<paragraph pageId="4" pageNumber="5">
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<pageBreakToken pageId="4" pageNumber="5" start="start">Paired</pageBreakToken>
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genital papillae (Fig. 3E, 4F) situated at posterior edge of chaetiger 8 in all studied individuals with gametes as well as in specimens without recognizable gametes, except for one specimen with unpaired genital papilla.
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</paragraph>
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<paragraph pageId="4" pageNumber="5">Pygidium retracted within last chaetiger, anus terminal. Boundary between distal part of last segment and pygidium indistinct. Inverted part (distal to chaetae) with a number of conical papillae, which are larger than in rest of body (Fig. 2E, 3C, 4B).</paragraph>
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<paragraph pageId="4" pageNumber="5">
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Oocytes up to 90
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<normalizedToken originalValue="μm">μm</normalizedToken>
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in diameter, arranged in two ovisacs, extend through chaetigers 6-15, each contains 20-40 oocytes (Fig. 2A, 3A, E).
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</paragraph>
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<paragraph pageId="4" pageNumber="5">
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Sperm cells hardly visible through body wall, but observed in SEM in body cavity of dissected specimen. They have rounded heads about 3
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<normalizedToken originalValue="μm">μm</normalizedToken>
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in diameter, an acrosome with elongated distal part and free flagellum at least 10
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long (Fig. 4G, H).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="5" type="etymology">
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<paragraph pageId="4" pageNumber="5">Etymology.</paragraph>
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<paragraph pageId="4" pageNumber="5">The species name refers to its type locality.</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="5" type="distribution">
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<paragraph pageId="4" pageNumber="5">Distribution.</paragraph>
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<paragraph pageId="4" pageNumber="5">Northeast part of the North Sea.</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="5" type="ecology">
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<paragraph pageId="4" pageNumber="5">Ecology.</paragraph>
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<paragraph pageId="4" pageNumber="5">Inhabits muddy sediments with small admixture (0.8 - 7.7 %) of fine and medium sand, in depth of 300-350 m.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="5" lastPageNumber="6" pageId="4" pageNumber="5" type="discussion">
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<paragraph pageId="4" pageNumber="5">Discussion.</paragraph>
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<paragraph pageId="4" pageNumber="5">
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<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis norvegica" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="norvegica">Laubieriopsis norvegica</taxonomicName>
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sp. n. differs from all previously described species of the family
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<taxonomicName family="Fauveliopsidae" lsidName="" pageId="4" pageNumber="5" rank="family">Fauveliopsidae</taxonomicName>
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by the highly reduced chaetal bunds in median and posterior parapodia. Whereas all fauveliopsid species have one, rarely two acicular spines in each parapodial ramus, noto- and neuropodia of chaetigers 5-21 in
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<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis norvegica" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="norvegica">Laubieriopsis norvegica</taxonomicName>
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sp. n bear one fine, slender capillary and one even smaller chaeta which may be absent.
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</paragraph>
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<paragraph pageId="4" pageNumber="5">
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Species of the genus
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<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="genus">Laubieriopsis</taxonomicName>
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are characterized by a fixed number of chaetigers; previously described species have 16, 21 and 25 chaetigers (
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<bibRefCitation pageId="4" pageNumber="5">Petersen 2000</bibRefCitation>
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).
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<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis norvegica" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="norvegica">Laubieriopsis norvegica</taxonomicName>
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sp.n. is most similar to
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<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis cabiochi" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="cabiochi">Laubieriopsis cabiochi</taxonomicName>
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(Amoureux, 1982) in the number of chaetigers (22 and 21, respectively) but it has significant differences.
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis norvegica" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="norvegica">Laubieriopsis norvegica</taxonomicName>
|
||
have paired genital papillae while in
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis cabiochi" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="cabiochi">Laubieriopsis cabiochi</taxonomicName>
|
||
the genital papilla is unpaired. Paired genital papillae were observed in some other species of the genus, for example
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis arenicola" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="arenicola">Laubieriopsis arenicola</taxonomicName>
|
||
. Parapodia of the last chaetiger in
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis norvegica" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="norvegica">Laubieriopsis norvegica</taxonomicName>
|
||
differ from the other parapodia, bearing one thick acicular chaeta and three capillary chaetae. Enlarged and backward-directed chaetae of the terminal chaetiger - "pygidial cage" - were described also for other
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="genus">Laubieriopsis</taxonomicName>
|
||
species (
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis brevis" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="brevis">Laubieriopsis brevis</taxonomicName>
|
||
,
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis arenicola" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="arenicola">Laubieriopsis arenicola</taxonomicName>
|
||
) (
|
||
<bibRefCitation pageId="4" pageNumber="5">Riser 1987</bibRefCitation>
|
||
,
|
||
<bibRefCitation pageId="4" pageNumber="5">Petersen 2000</bibRefCitation>
|
||
).
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis arenicola" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="arenicola">Laubieriopsis arenicola</taxonomicName>
|
||
differs from
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis norvegica" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="norvegica">Laubieriopsis norvegica</taxonomicName>
|
||
by having 25 thoracic chaetigers and in the location of genital papillae on chaetiger 7.
|
||
</paragraph>
|
||
<paragraph pageId="4" pageNumber="5">
|
||
Our study confirms
|
||
<normalizedToken originalValue="Petersen’s">Petersen's</normalizedToken>
|
||
(2000) statement on characters useful for distinguishing species in the genus
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="genus">Laubieriopsis</taxonomicName>
|
||
: number of chaetigers, number of anterior chaetigers with acicular chaetae, presence of bidentate anterior neurochaetae, enlarged and directed backward chaetae of the last chaetiger, and paired/unpaired genital papilla. Interestingly, one of 28 specimens studied here has 23 instead 22 thoracic chaetigers and another one has an unpaired genital papilla. As intraspecific variability was noted for all characters (present work,
|
||
<bibRefCitation pageId="4" pageNumber="5">Petersen 2000</bibRefCitation>
|
||
), description of new as well as redescription of existing taxa should be based on examination of several specimens and the whole complex of characters.
|
||
</paragraph>
|
||
<paragraph pageId="5" pageNumber="6">
|
||
<pageBreakToken pageId="5" pageNumber="6" start="start">There</pageBreakToken>
|
||
was only one species of the genus
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="genus">Laubieriopsis</taxonomicName>
|
||
previously known from the Northeast Atlantic,
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis cabiochi" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="cabiochi">Laubieriopsis cabiochi</taxonomicName>
|
||
. The present study increases the number of known species of
|
||
<taxonomicName class="Polychaeta" family="Fauveliopsidae" genus="Laubieriopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laubieriopsis" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="genus">Laubieriopsis</taxonomicName>
|
||
to five and the number of Northeast Atlantic species of this genus to two.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |