148 lines
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148 lines
15 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.632.9652" ID-GBIF-Dataset="54a0456a-1aec-41e5-9de1-ba2cc9eeb4dd" ID-PMC="PMC5126541" ID-Pensoft-Pub="1313-2970-632-1" ID-PubMed="27920600" ID-ZBK="51170AC778FF4093A5C0EBA609A83FDB" ModsDocAuthor="" ModsDocDate="2016" ModsDocID="1313-2970-632-1" ModsDocOrigin="ZooKeys 632" ModsDocTitle="Elisesione, a new name for Wesenbergia Hartman, 1955, and the description of a new species (Annelida, Hesionidae)" checkinTime="1479361946471" checkinUser="pensoft" docAuthor="Salazar-Vallejo, Sergio I." docDate="2016" docId="D302B574BBB7AABED65BAAF58D2A3544" docLanguage="en" docName="ZooKeys 632: 1-12" docOrigin="ZooKeys 632" docSource="http://dx.doi.org/10.3897/zookeys.632.9652" docTitle="Elisesione mezianei Salazar-Vallejo, 2016, sp. n." docType="treatment" docUuid="09A8C65D-DBE4-43AB-9AF7-F3029BF64C7A" docUuidSource="ZooBank" docVersion="5" lastPageNumber="8" masterDocId="FF8BFFAAFFF4FFAFFF8EFFCD6C1A7334" masterDocTitle="Elisesione, a new name for Wesenbergia Hartman, 1955, and the description of a new species (Annelida, Hesionidae)" masterLastPageNumber="12" masterPageNumber="1" pageNumber="5" updateTime="1668163697567" 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>Elisesione, a new name for Wesenbergia Hartman, 1955, and the description of a new species (Annelida, Hesionidae)</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>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>2016</mods:date>
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<mods:detail type="volume">
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<mods:number>632</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>12</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.632.9652</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.632.9652</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-632-1</mods:identifier>
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<mods:identifier type="ZBK">51170AC778FF4093A5C0EBA609A83FDB</mods:identifier>
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<mods:identifier type="ZooBank">51170AC778FF4093A5C0EBA609A83FDB</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="127870470" LSID="urn:lsid:zoobank.org:act:09A8C65D-DBE4-43AB-9AF7-F3029BF64C7A" httpUri="http://treatment.plazi.org/id/D302B574BBB7AABED65BAAF58D2A3544" lastPageId="7" lastPageNumber="8" pageId="4" pageNumber="5">
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<subSubSection pageId="4" pageNumber="5" type="multiple">
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<paragraph pageId="4" pageNumber="5">Taxon classification Animalia Phyllodocida Hesionidae</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="5" type="nomenclature">
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<paragraph pageId="4" pageNumber="5">
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<taxonomicName LSID="http://zoobank.org/09A8C65D-DBE4-43AB-9AF7-F3029BF64C7A" class="Polychaeta" family="Hesionidae" genus="Elisesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Elisesione mezianei" order="Phyllodocida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="mezianei">Elisesione mezianei</taxonomicName>
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<taxonomicNameLabel pageId="4" pageNumber="5">sp. n.</taxonomicNameLabel>
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Figs 1, 2
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="5" type="type material">
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<paragraph pageId="4" pageNumber="5">Type material.</paragraph>
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<paragraph pageId="4" pageNumber="5">
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Holotype (MNHN 1777), Musorstom Expedition 7, Wallis & Futuna Islands, Sta. 536 (
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<geoCoordinate direction="south" orientation="latitude" precision="92" value="-12.513333">12°30.8'S</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="925" value="-176.68333">176°41'W</geoCoordinate>
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), Waren Dredge, Waterwitch Bank, 128 km NW off Wallis Island, 27-37 m, coralline rocks, crinoids, crabs, 16 May 1992, B. Richer, coll.
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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">
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This species is named to honor Dr. Tarik Meziane, Curator of
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<taxonomicName class="Polychaeta" lsidName="" pageId="4" pageNumber="5" rank="class">Polychaeta</taxonomicName>
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in the
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<normalizedToken originalValue="Muséum">Museum</normalizedToken>
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National d'Histoire Naturelle, Paris, as an appreciation of his efforts and support to my research activities during many years. The epithet is a noun in apposition.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="7" pageId="4" pageNumber="5" type="description">
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<paragraph pageId="4" pageNumber="5">Description.</paragraph>
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<paragraph pageId="4" pageNumber="5">Holotype (MNHN 1777) complete, subcylindrical, slightly damaged, bent ventrally, many neurochaetal blades broken; 28 mm long, 3 mm wide, 16 chaetigers (right parapodium of chaetiger 7 removed for observation, now kept in plastic vial with holotype).</paragraph>
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<paragraph pageId="4" pageNumber="5">Body with parallel sides (Fig. 1A), barely tapered posteriorly; pigmentation brownish, with abundant irregular spots variably fused into transverse or longitudinal lines, leaving a mid-dorsal, irregular, wider than long pale area in each segment (Fig. 1B); pigment intensity and definition progressively reduced posteriorly. Lateral and ventral surfaces pale.</paragraph>
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<caption pageId="4" pageNumber="5">
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<paragraph pageId="4" pageNumber="5">
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Figure 1.
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<taxonomicName class="Polychaeta" family="Hesionidae" genus="Elisesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Elisesione mezianei" order="Phyllodocida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="mezianei">Elisesione mezianei</taxonomicName>
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sp. n. Holotype (MNHN 1777). A Anterior region, dorsal view B Anterior end, dorsal view C Posterior region, slightly oblique dorsal view D Pygidium. Scale bars A 1.6 mm, B 0.5 mm, C 1.2 mm, D 0.4 mm.
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</paragraph>
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</caption>
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<paragraph lastPageId="5" lastPageNumber="6" pageId="4" pageNumber="5">
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Prostomium slightly wider than long, anterior margin with a shallow depression, lateral margins rounded, wider medially, posterior margin with a shallow depression,
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<pageBreakToken pageId="5" pageNumber="6" start="start">as</pageBreakToken>
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long as 1/6 prostomial length. Antennae digitate, longer than interocular distance. Palps simple, blunt, 2/3 as long as antennae, positioned at the same level, external to antennae. Eyes blackish, anterior ones half-moon shaped, three times as large as posterior rounded ones (Fig. 2A, B).
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</paragraph>
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<caption pageId="5" pageNumber="6">
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<paragraph pageId="5" pageNumber="6">
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Figure 2.
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<taxonomicName class="Polychaeta" family="Hesionidae" genus="Elisesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Elisesione mezianei" order="Phyllodocida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="mezianei">Elisesione mezianei</taxonomicName>
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sp. n. Holotype (MNHN 1777). A Prostomium, dorsal view B Same, after methyl-green staining C Chaetiger 7, right parapodium, anterior view, dorsal cirrostyle removed, only base left on cirrophore (inset: close-up showing tips of double acicular lobe) D Chaetiger 7, neurochaetal blades, variably eroded; the one on the right has a wider handle due to optical interference, not really wider than the others. Scale bars A, B 0.27 mm, C 0.3 mm, D 20
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<normalizedToken originalValue="µm">µm</normalizedToken>
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.
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</paragraph>
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</caption>
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<paragraph pageId="5" pageNumber="6">Enlarged cirri long, thick, longest one reaches chaetiger 5. Lateral cushions low, projected anteriorly, slightly projected laterally, undivided.</paragraph>
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<paragraph lastPageId="6" lastPageNumber="7" pageId="5" pageNumber="6">
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Parapodia with chaetal lobes cylindrical, truncate, longer than wide; dorsal cirri thick with cirrophores cylindrical, 4-5 times longer than wide (Fig. 2C), cirrostyle
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<pageBreakToken pageId="6" pageNumber="7" start="start">basally</pageBreakToken>
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cylindrical, smooth, medially annulated, distally articulated, shorter than body width (without parapodia). Ventral cirri basally smooth, rugose medially and distally, surpassing chaetal lobes.
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</paragraph>
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<paragraph pageId="6" pageNumber="7">Acicula black, tapered; acicular lobe double, each lobe blunt, of similar size, barely visible because of chaetal lobe contraction (Fig. 2C, inset). Neurochaetae about 30 per bundle, handle and blade brownish, blade unidentate but some chaetae with subdistal tooth remains, probably eroded; guards not seen (Fig. 2D).</paragraph>
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<paragraph pageId="6" pageNumber="7">Posterior end tapered into a blunt cone (Fig. 1C); prepygydial segment with asymmetrical cirri, dorsal ones over 10 times longer than ventral ones; pygidium smooth, depressed (Fig. 1D); anus dorso-terminal, open, about 9 anal papillae.</paragraph>
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<paragraph pageId="6" pageNumber="7">Pharynx not exposed. Oocytes not seen.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="7" lastPageNumber="8" pageId="6" pageNumber="7" type="remarks">
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<paragraph pageId="6" pageNumber="7">Remarks.</paragraph>
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<paragraph lastPageId="7" lastPageNumber="8" pageId="6" pageNumber="7">
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As indicated in the key above,
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<taxonomicName class="Polychaeta" family="Hesionidae" genus="Elisesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Elisesione mezianei" order="Phyllodocida" pageId="6" pageNumber="7" phylum="Annelida" rank="species" species="mezianei">Elisesione mezianei</taxonomicName>
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sp. n. differs from both the Icelandic and the Japanese
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<taxonomicName class="Polychaeta" family="Hesionidae" genus="Elisesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Elisesione problematica" order="Phyllodocida" pageId="6" pageNumber="7" phylum="Annelida" rank="species" species="problematica">Elisesione problematica</taxonomicName>
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in parapodial and chaetal features. In
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<taxonomicName class="Polychaeta" family="Hesionidae" genus="Elisesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Elisesione mezianei" order="Phyllodocida" pageId="6" pageNumber="7" phylum="Annelida" rank="species" species="mezianei">Elisesione mezianei</taxonomicName>
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dorsal ceratophores are long (4
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<normalizedToken originalValue="–5×">-5x</normalizedToken>
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longer than wide), the acicular lobe is double, and neurochaetal blades are short (1-3 times longer than wide),
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<pageBreakToken pageId="7" pageNumber="8" start="start">whereas</pageBreakToken>
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in
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<taxonomicName class="Polychaeta" family="Hesionidae" genus="Elisesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Elisesione problematica" order="Phyllodocida" pageId="7" pageNumber="8" phylum="Annelida" rank="species" species="problematica">Elisesione problematica</taxonomicName>
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dorsal ceratophores are short (2
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<normalizedToken originalValue="×">x</normalizedToken>
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longer than wide), the acicular lobe is single, and neurochaetal blades are long (8
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<normalizedToken originalValue="–12×">-12x</normalizedToken>
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longer than wide). Based upon the observation of other similar hesionid specimens, it is clear that these morphological differences are not the result of preservation methods, or prolonged storage in ethanol.
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</paragraph>
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<paragraph pageId="7" pageNumber="8">
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On the contrary, pigmentation patterns can be modified by dissolution in ethanol, because of photo-oxidation, or both, and despite the striking contrast between the two species, they could not be employed as diagnostic features. The pigmentation of
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<taxonomicName class="Polychaeta" family="Hesionidae" genus="Elisesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Elisesione mezianei" order="Phyllodocida" pageId="7" pageNumber="8" phylum="Annelida" rank="species" species="mezianei">Elisesione mezianei</taxonomicName>
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is long-lasting since it has been in ethanol for at least 16 years, when it was initially sorted-out as part of the Musorstom materials (
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<bibRefCitation author="Salazar-Vallejo, SI" journalOrPublisher="Mimeo." pageId="10" pageNumber="11" title="Polychaetes (Polychaeta) in the Museum National d'Histoire Naturelle collected mainly during ORSTOM cruises" year="1999">Salazar-Vallejo 1999</bibRefCitation>
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). Although they might be regarded of as having a little diagnostic relevance, the dorsal anastomosing thin brownish lines together with the shape and large size of the anterior eyes, are quite remarkable and unique for the genus, and, it must be added, not apparent in any
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<taxonomicName class="Polychaeta" family="Hesionidae" genus="Hesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hesione" order="Phyllodocida" pageId="7" pageNumber="8" phylum="Annelida" rank="genus">Hesione</taxonomicName>
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species.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="8" type="distribution">
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<paragraph pageId="7" pageNumber="8">Distribution.</paragraph>
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<paragraph pageId="7" pageNumber="8">
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<taxonomicName class="Polychaeta" family="Hesionidae" genus="Elisesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Elisesione mezianei" order="Phyllodocida" pageId="7" pageNumber="8" phylum="Annelida" rank="species" species="mezianei">Elisesione mezianei</taxonomicName>
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sp. n. is the second species in a previous monotypic genus and it is apparently rare along its distribution in rocky, shallow water substrates (35 m) in the Southwestern Pacific. The distribution for the genus is rather interesting and difficult to explain. The type species,
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<taxonomicName class="Polychaeta" family="Hesionidae" genus="Elisesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Elisesione problematica" order="Phyllodocida" pageId="7" pageNumber="8" phylum="Annelida" rank="species" species="problematica">Elisesione problematica</taxonomicName>
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(Wesenberg-Lund, 1950) thrives in very cold waters in Iceland, and was also recorded in Japan in sediments at 150-320 m depth (
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<bibRefCitation author="Imajima, M" journalOrPublisher="National Science Museum Monographs" pageId="9" pageNumber="10" pagination="1 - 221" title="Polychaetous annelids from Sagami Bay and Sagami Sea collected by the Emperor Showa of Japan and deposited at the Showa Memorial Institute, National Science Museum, Tokyo, 2. Orders included within the Phyllodocida, Amphinomida, Spintherida and Eunicida." url="http://ci.nii.ac.jp/naid/110004708004/en" volume="23" year="2003">Imajima 2003</bibRefCitation>
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), whereas the new species,
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<taxonomicName class="Polychaeta" family="Hesionidae" genus="Elisesione" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Elisesione mezianei" order="Phyllodocida" pageId="7" pageNumber="8" phylum="Annelida" rank="species" species="mezianei">Elisesione mezianei</taxonomicName>
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, was found in shallow environments in a single locality in the tropical Pacific.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |