146 lines
13 KiB
XML
146 lines
13 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.286.4438" ID-GBIF-Dataset="8eb9e776-76c2-4f09-8964-77205d602229" ID-PMC="PMC3677357" ID-Pensoft-Pub="1313-2970-286-1" ID-PubMed="23794844" ModsDocAuthor="" ModsDocDate="2013" ModsDocID="1313-2970-286-1" ModsDocOrigin="ZooKeys 286" ModsDocTitle="Revision of Sternaspis Otto, 1821 (Polychaeta, Sternaspidae)" checkinTime="1451247449682" checkinUser="pensoft" docAuthor="Sendall, Kelly & Salazar-Vallejo, Sergio I." docDate="2013" docId="97D23B5F624C49644F48A0D4239DDF15" docLanguage="en" docName="ZooKeys 286: 1-74" docOrigin="ZooKeys 286" docSource="http://dx.doi.org/10.3897/zookeys.286.4438" docTitle="Caulleryaspis gudmundssoni Sendall & Salazar-Vallejo, 2013, sp. n." docType="treatment" docVersion="5" lastPageNumber="51" masterDocId="E62FFF94FFE6FFFEEA0AE45616142716" masterDocTitle="Revision of Sternaspis Otto, 1821 (Polychaeta, Sternaspidae)" masterLastPageNumber="74" masterPageNumber="1" pageNumber="49" updateTime="1668155612909" 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>Revision of Sternaspis Otto, 1821 (Polychaeta, Sternaspidae)</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>Sendall, Kelly</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>Salazar-Vallejo, Sergio I.</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>2013</mods:date>
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<mods:detail type="volume">
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<mods:number>286</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>74</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.286.4438</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.286.4438</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-286-1</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152042392" LSID="urn:lsid:zoobank.org:act:F93976AE-B573-4ACE-8F8A-6BB6149CD71E" httpUri="http://treatment.plazi.org/id/97D23B5F624C49644F48A0D4239DDF15" lastPageId="50" lastPageNumber="51" pageId="48" pageNumber="49">
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<subSubSection pageId="48" pageNumber="49" type="nomenclature">
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<paragraph pageId="48" pageNumber="49">
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<taxonomicName LSID="urn:lsid:zoobank.org:act:F93976AE-B573-4ACE-8F8A-6BB6149CD71E" class="Polychaeta" family="Sternaspidae" genus="Caulleryaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caulleryaspis gudmundssoni" order="Terebellida" pageId="48" pageNumber="49" phylum="Annelida" rank="species" species="gudmundssoni">Caulleryaspis gudmundssoni</taxonomicName>
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<taxonomicNameLabel pageId="48" pageNumber="49">sp. n.</taxonomicNameLabel>
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Figure 16
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="49" lastPageNumber="50" pageId="48" pageNumber="49" type="type material">
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<paragraph pageId="48" pageNumber="49">Type material.</paragraph>
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<paragraph lastPageId="49" lastPageNumber="50" pageId="48" pageNumber="49">
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Atlantic Ocean, Iceland. Holotype (IMNH 10280), and 5 paratypes (IMNH 10282), BIOICE Program, R.V. Bjarni Saemundsson, Sta. 2429 (
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="63.038334">63°02.30'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="9" value="-21.846666">21°50.80'W</geoCoordinate>
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), 1072 m, sandy silt, 3-VII-1993. 16 additional paratypes as follows: 1 (IMNH 10281), BIOICE Program, R.V. Bjarni Saemundsson, Sta. 2430 (
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="63.131668">63°07.90'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="9" value="-19.953333">19°57.20'W</geoCoordinate>
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), 1016 m, no sediment data, 3-VII-1993. 3 (IMNH 10283), BIOICE Program, R.V. Bjarni Saemundsson, Sta. 2404 (
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="63.038334">63°02.30'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="9" value="-21.846666">21°50.80'W</geoCoordinate>
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), 827 m, sandy silt, 1-VII-1993. 2 (IMNH 10284), BIOICE Program, R.V. Bjarni Saemundsson, Sta. 2415 (
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="63.003">63°00.18'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="9" value="-21.9105">21°54.63'W</geoCoordinate>
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), 819 m, no sediment data, 2-VII-1993. 1 (IMNH 10285), BIOICE Program, R.V. Bjarni Saemundsson, Sta. 2414 (
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="63.005">63°00.30'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="9" value="-21.012667">21°00.76'W</geoCoordinate>
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), 808
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<pageBreakToken pageId="49" pageNumber="50" start="start">m</pageBreakToken>
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, sandy silt, 2-VII-1993. 4 (2 IMNH 10286, 2 MNHN 1555), BIOICE Program, R.V. Bjarni Saemundsson, Sta. 2475 (
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="63.07">63°04.20'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="9" value="-21.581667">21°34.90'W</geoCoordinate>
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), 842 m, sandy silt, 5-VII-1993. 1 (IMNH 10287), BIOICE Program, R.V. Bjarni Saemundsson, Sta. 2409 (
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="62.872833">62°52.37'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="9" value="-21.727">21°43.62'W</geoCoordinate>
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), 1080 m, silt with large rock, 2-VII-1993. 1 (IMNH 10288), BIOICE Program, R.V. Bjarni Saemundsson, Sta. 2468 (
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="63.166668">63°10.00'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="9" value="-21.515">21°30.90'W</geoCoordinate>
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), 452 m, sandy silt, 5-VII-1993. 3 (IMNH 10289), BIOICE Program, R.V. Bjarni Saemundsson, Sta. 2431 (
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="63.068">63°04.08'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="9" value="-19.8555">19°51.33'W</geoCoordinate>
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), 1207 m, sandy silt, 3-VII-1993.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="50" lastPageNumber="51" pageId="49" pageNumber="50" type="description">
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<paragraph pageId="49" pageNumber="50">Description.</paragraph>
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<paragraph pageId="49" pageNumber="50">Holotype (IMNH 10280) with body stout and of equal width over the anterior, preshield and shield regions (Fig. 16A). Colour tan, speckeld with small sediment particles. Abundant, minute cuticular papillae, incorporating fine sediment particles, except in the areas where introvert hooks emerge. Segments seven and eight with more cuticular papillae near genital papillae. Cuticular papillae not present, even dorsally near ventro-caudal shield, but a few may be present on more posterior segments. Body 7.5 mm long, 3.5 mm wide, about 28 segments.</paragraph>
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<paragraph pageId="49" pageNumber="50">Prostomium hemispherical, conspicuously extended, white, opaque. Peristomium small, oval, bearing some papillae closer to mouth. Mouth oval, small, completely covered by papillae, extends from prostomium to anterior border of second segment.</paragraph>
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<paragraph pageId="50" pageNumber="51">
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<pageBreakToken pageId="50" pageNumber="51" start="start">First</pageBreakToken>
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three chaetigers with 10-15 falcate, flat introvert hooks per bundle, closely associated, each with subdistal dark areas. Genital papillae protrude ventrally from intersegmental furrow between segments 7 and 8. Pre-shield regions with 7 segments, smooth, some bearing small groups of fine, short capillary chaetae.
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</paragraph>
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<paragraph pageId="50" pageNumber="51">
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Ventro-caudal shield completely covered by a thick coating of adhered particles, unusually flexible; suture not visible (Fig. 16
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<normalizedToken originalValue="A–C">A-C</normalizedToken>
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). Anterior margins apparently rounded (shape blocked by sediment cover); anterior depression deep; anterior keels not exposed. Ribs, concentric lines or fan not visible. Lateral margins rounded, expanded medially, reduced posteriorly. Fan truncate, barely reaching posterior corners. Other features not visible.
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</paragraph>
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<paragraph pageId="50" pageNumber="51">
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Marginal chaetal fascicles include 10 lateral ones, and only three short, small posterior fascicles (other ones apparently broken), each with 3-4 chaetae concentrated near posterolateral edge of shield. Peg chaetae robust, stout in cross basal section, pale gold, emerge directly from a raised portion of shield, close to posterior margins (Fig. 16
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<normalizedToken originalValue="A–C">A-C</normalizedToken>
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). Additional two couplets or triplets of fine short capillary chaetae between peg chaetae and first posterior shield chaetae fascicles.
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</paragraph>
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<paragraph pageId="50" pageNumber="51">Branchiae few, very slender coiled filaments on two roughly parallel plates; longer, more slender, straight filamentous papillae closer to anus.</paragraph>
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</subSubSection>
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<subSubSection pageId="50" pageNumber="51" type="etymology">
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<paragraph pageId="50" pageNumber="51">Etymology.</paragraph>
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<paragraph pageId="50" pageNumber="51">The species name is derived after Dr. Gudmundur Gudmundsson, from the Iceland Natural History Museum in recognition of his long-standing support for our research activities. The epithet is a noun in the genitive case.</paragraph>
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</subSubSection>
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<subSubSection pageId="50" pageNumber="51" type="type locality">
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<paragraph pageId="50" pageNumber="51">Type locality.</paragraph>
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<paragraph pageId="50" pageNumber="51">Off southeast of Vestmannaey jar, Iceland, 1072 m.</paragraph>
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</subSubSection>
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<subSubSection pageId="50" pageNumber="51" type="remarks">
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<paragraph pageId="50" pageNumber="51">Remarks.</paragraph>
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<paragraph pageId="50" pageNumber="51">
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<taxonomicName class="Polychaeta" family="Sternaspidae" genus="Caulleryaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caulleryaspis gudmundssoni" order="Terebellida" pageId="50" pageNumber="51" phylum="Annelida" rank="species" species="gudmundssoni">Caulleryaspis gudmundssoni</taxonomicName>
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sp. n. resembles
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<taxonomicName class="Polychaeta" family="Sternaspidae" genus="Caulleryaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caulleryaspis laevis" order="Terebellida" pageId="50" pageNumber="51" phylum="Annelida" rank="species" species="laevis">Caulleryaspis laevis</taxonomicName>
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(Caullery, 1944) comb. n. because both species have sediment particles covering their soft shields. These species differ in the relative development of the anterior shield depression and especially on the relative development of peg chaetae. In
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<taxonomicName class="Polychaeta" family="Sternaspidae" genus="Petersenaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Petersenaspis gudmundssoni" order="Terebellida" pageId="50" pageNumber="51" phylum="Annelida" rank="species" species="gudmundssoni">Petersenaspis gudmundssoni</taxonomicName>
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the anterior depression is deep and the peg chaetae are robust, being easily noticed over the shield itself, whereas in
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<taxonomicName class="Polychaeta" family="Sternaspidae" genus="Caulleryaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caulleryaspis laevis" order="Terebellida" pageId="50" pageNumber="51" phylum="Annelida" rank="species" species="laevis">Caulleryaspis laevis</taxonomicName>
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the anterior depression is shallow and the peg chaetae are not well developed.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="50" pageNumber="51" type="distribution">
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<paragraph pageId="50" pageNumber="51">Distribution.</paragraph>
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<paragraph pageId="50" pageNumber="51">Only known from the type locality off southwest Iceland, in sediments of 452-1207 m depth.</paragraph>
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<caption pageId="50" pageNumber="51">
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<paragraph pageId="50" pageNumber="51">
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Figure 16.
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<taxonomicName class="Polychaeta" family="Sternaspidae" genus="Caulleryaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caulleryaspis gudmundssoni" order="Terebellida" pageId="50" pageNumber="51" phylum="Annelida" rank="species" species="gudmundssoni">Caulleryaspis gudmundssoni</taxonomicName>
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sp. n., holotype (IMNH 10280) A Ventral view (arrow points peg chaetae) B Same, ventro-caudal shield (arrow points peg chaetae) C Same, posterior region, lateral view (arrow points peg chaetae). Bars: A 1.4 mm, B 0.8 mm C 0.9 mm (Photos: Gudmundur Vidir Helgason).
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</paragraph>
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</caption>
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</subSubSection>
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</treatment>
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</document> |