205 lines
16 KiB
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205 lines
16 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.61.552" ID-GBIF-Dataset="76f53e82-075b-41f5-bdc2-2673cc4c9772" ID-PMC="PMC3088353" ID-Pensoft-Pub="1313-2970-61-1" ID-PubMed="21594012" ModsDocAuthor="" ModsDocDate="2010" ModsDocID="1313-2970-61-1" ModsDocOrigin="ZooKeys 61" ModsDocTitle="Acanthodasys caribbeanensis sp. n., a new species of Thaumastodermatidae (Gastrotricha, Macrodasyida) from Belize and Panama" checkinTime="1451250951503" checkinUser="pensoft" docAuthor="Hochberg, Rick & Atherton, Sarah" docDate="2010" docId="5E8AA494E1468C09AEA3ECBBE999625F" docLanguage="en" docName="ZooKeys 61: 1-10" docOrigin="ZooKeys 61" docSource="http://dx.doi.org/10.3897/zookeys.61.552" docTitle="Acanthodasys caribbeanensis Hochberg & Atherton, 2010, sp. n." docType="treatment" docVersion="5" lastPageNumber="3" masterDocId="170BFFC6FFA1F876334F4A1FF34FFFF4" masterDocTitle="Acanthodasys caribbeanensis sp. n., a new species of Thaumastodermatidae (Gastrotricha, Macrodasyida) from Belize and Panama" masterLastPageNumber="10" masterPageNumber="1" pageNumber="2" updateTime="1668163421382" 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>Acanthodasys caribbeanensis sp. n., a new species of Thaumastodermatidae (Gastrotricha, Macrodasyida) from Belize and Panama</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>Hochberg, Rick</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>Atherton, Sarah</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>2010</mods:date>
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<mods:detail type="volume">
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<mods:number>61</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.61.552</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.61.552</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-61-1</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="159360132" LSID="urn:lsid:zoobank.org:act:2ED007EB-D7F8-4E0D-9DC4-37BAFA49B247" httpUri="http://treatment.plazi.org/id/5E8AA494E1468C09AEA3ECBBE999625F" lastPageId="2" lastPageNumber="3" 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:2ED007EB-D7F8-4E0D-9DC4-37BAFA49B247" family="Thaumastodermatidae" genus="Acanthodasys" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthodasys caribbeanensis" order="Macrodasyida" pageId="1" pageNumber="2" phylum="Gastrotricha" rank="species" species="caribbeanensis">Acanthodasys caribbeanensis</taxonomicName>
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<taxonomicNameLabel pageId="1" pageNumber="2">sp. n.</taxonomicNameLabel>
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Figs 13
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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">Station CBC10.19, Carrie Bow Cay Reef, coarse sand patches on ridge, 15 m depth, 16°48.127N, 88°04.607W. Sediments collected by Cheryl Thacker on January 23, 2010.</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="2" type="holotype">
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<paragraph pageId="1" pageNumber="2">Holotype.</paragraph>
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<paragraph pageId="1" pageNumber="2">
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Adult specimen, reproductively mature, 625
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long, resin preparation: specimen in dorsoventral orientation. USNM #1145897
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</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="2" type="other localities">
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<paragraph pageId="1" pageNumber="2">Other localities.</paragraph>
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<paragraph pageId="1" pageNumber="2">Station BRS2010-104, Wild Cane Rock, Bocas del Toro, Panama, 14 m depth, medium coarse sand plain, 9°21.016N, 82°10.335W. Sediment collected by Daniel Gouge on June 8, 2010.</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="2" type="paratypes">
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<paragraph pageId="1" pageNumber="2">Paratypes.</paragraph>
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<paragraph pageId="1" pageNumber="2">
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Cat. No. USNM 1145898, Adult specimen, minimum 425
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long (curled), resin preparation: specimen on side. Cat. No. USNM 1145899, Adult specimen, minimum 450
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long (curled), resin preparation: specimen in dorsoventral orientation.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="2" type="material examined">
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<paragraph pageId="1" pageNumber="2">Material examined.</paragraph>
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<paragraph pageId="1" pageNumber="2">Ten specimens. Three prepared for archival.</paragraph>
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<caption pageId="1" pageNumber="2">
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<paragraph pageId="1" pageNumber="2">
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Figure 1.
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<taxonomicName family="Thaumastodermatidae" genus="Acanthodasys" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthodasys caribbeanensis" order="Macrodasyida" pageId="1" pageNumber="2" phylum="Gastrotricha" rank="species" species="caribbeanensis">Acanthodasys caribbeanensis</taxonomicName>
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sp. n. from Carrie Bow Cay, Belize A Dorsal view, transmitted light B Closeup of anterior end, dorsal view, DIC optics C Closeup of posterior end, dorsal view, DIC optics. Abbreviatons: cu caudal uniancres, du dorsal uniancre, dlu dorsolateral uniancre, eg egg, lu lateral uniancre, ou oral unianre, TbP posterior adhesive tubes.
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</paragraph>
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</caption>
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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">
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<taxonomicName family="Thaumastodermatidae" genus="Acanthodasys" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthodasys" order="Macrodasyida" pageId="1" pageNumber="2" phylum="Gastrotricha" rank="genus">Acanthodasys</taxonomicName>
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with an adult body length from 375
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<normalizedToken originalValue="µm">µm</normalizedToken>
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to 625
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long. Maximum body width at mouth/PIJ/midpoint of body is 30/62/100
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<normalizedToken originalValue="µm">µm</normalizedToken>
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. Pharynx to 238
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long. Cuticle of spineless and spined scales. Spineless scales of various shape. Spined scales bear uniancres to 50
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long, distributed as one dorsal column flanked by two dorsolateral columns and two lateral columns. Uniancres also extend dorsally across mouth rim. Ten epidermal glands per side. Up to nine TbA per side inserting directly on body surface at mouth rim. TbL absent. At least 43 TbVL per side beginning at PIJ and extending onto the outer edges of the caudal lobes. Two TbP insert terminally on caudal lobes, two insert medially. Hermaphroditic, with paired testes and single glandular caudal organ. Rosette organ on left dorsolateral side of body; single ovary present.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="2" type="etymology">
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<paragraph pageId="1" pageNumber="2">Etymology.</paragraph>
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<paragraph pageId="1" pageNumber="2">Named after the region of origin, referring to the Caribbean (Latin adjectival ending: ensis; caribbeanensis).</paragraph>
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</subSubSection>
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<subSubSection lastPageId="2" lastPageNumber="3" pageId="1" pageNumber="2" type="description">
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<paragraph pageId="1" pageNumber="2">Description.</paragraph>
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<paragraph lastPageId="2" lastPageNumber="3" pageId="1" pageNumber="2">
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The description is based on the holotype (adult, 625
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long), with ranges given from specimens measured in vivo. Body strap-shaped and 425-625
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long (Fig. 1A). Mouth region narrow; body inflates at U04, narrows again at U08, and widens toward the trunk. Widths of mouth at U04/pharynx region at U08/PIJ at U36/trunk at U50/caudal base at U92 are 30/67/105/125/20
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<normalizedToken originalValue="µm">µm</normalizedToken>
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. Pharynx 23
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<pageBreakToken pageId="2" pageNumber="3" start="start">8</pageBreakToken>
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long with pharyngeal pores at U32. Dorsal rim of oral hood, ca. 10
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<normalizedToken originalValue="µm">µm</normalizedToken>
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wide, free of cuticular spines and fringed with numerous mobile cilia and few stiff sensory hairs to 10
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long. Epidermal glands to 18
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<normalizedToken originalValue="µm">µm</normalizedToken>
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diameter and to 10 per side. Ventral locomotory cilia present as a complete field beginning at ca. U08 and extending to the caudum (Fig. 2B).
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</paragraph>
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<caption pageId="2" pageNumber="3">
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<paragraph pageId="2" pageNumber="3">
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Figure 2.
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<taxonomicName family="Thaumastodermatidae" genus="Acanthodasys" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthodasys caribbeanensis" order="Macrodasyida" pageId="2" pageNumber="3" phylum="Gastrotricha" rank="species" species="caribbeanensis">Acanthodasys caribbeanensis</taxonomicName>
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sp. n. A Habitus, drawn in dorsal view. B Habitus, drawn in ventral view. C Closeup of head region showing the distribution of TbA D Examples of different shapes of uniancres on the body E Examples of different scale shapes on dorsal and ventral sides. Abbreviatons: co caudal organ, cu caudal uniancres, dlu dorsolateral uniancre, du dorsal uniancre, ep epidermal gland, lu lateral uniancre, ou oral unianre, ro rosette organ, TbA anterior adhesive tube, TbP posterior adhesive tubes, TbVl ventrolateral adhesive tubes, te testis.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="3" type="cuticular armature">
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<paragraph pageId="2" pageNumber="3">Cuticular armature.</paragraph>
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<paragraph pageId="2" pageNumber="3">
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Cuticular spines evident at low magnification and arranged around the periphery of the head, along the trunk and on the caudal lobes (Figs. 1, 2). Spined- and spineless scales present. Approximately 10-12 oral uniancres line the dorsal periphery of the head behind the
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<normalizedToken originalValue="“naked”">"naked"</normalizedToken>
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region of the oral hood (Fig. 1B). Uninacres slightly staggered in position; uniancres increase in size from medial position (10
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long) to a lateral position along head (U06, 23
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long). Uniancres in lateral and dorsolateral positions continue along the trunk as individual columns. The trunk contains a total of five columns of uniancres: one dorsal, two dorsolateral, and two lateral columns (Figs. 1A, 2A). Sixteen uniancres in dorsal column begin at U08 and extend to U80, increasing in size from 20-50
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long down the length of the body, and with a slight bend or posterior curvature at the apex (Fig. 3B). Dorsolateral columns of ca. 14-16 spines that increase in length along the trunk, from 17-35
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long and with a slight posterior curvature or distinguishable bend (Fig. 2D); column ends at U85. Lateral columns of 23-26 spines that increase in length along the trunk, from 20-35
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, and mostly with a straight shape but oriented in a slight posterior direction; column ends at U87. Five small uniancres present on each caudal lobe, 8-20
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long, in somewhat dorsolateral position (Fig. 1C). Cuticle between uniancres present as spineless scales. Scales of various shape; most dorsal scales have an obtuse triangular shape with the apex pointed posteriorly; some ventral scales same shape as dorsal scales; others of varying shapes (Figs. 1B, 2E, 3A). Center of each scale with a triangular or eye-shaped depression. Scales ca. 15
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<normalizedToken originalValue="µm">µm</normalizedToken>
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wide and arranged in 5 columns on dorsal surface; ventral surface also with scales but the number of columns was undetermined.
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</paragraph>
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<caption pageId="2" pageNumber="3">
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<paragraph pageId="2" pageNumber="3">
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Figure 3.
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<taxonomicName family="Thaumastodermatidae" genus="Acanthodasys" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthodasys caribbeanensis" order="Macrodasyida" pageId="2" pageNumber="3" phylum="Gastrotricha" rank="species" species="caribbeanensis">Acanthodasys caribbeanensis</taxonomicName>
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sp. n. from Carrie Bow Cay, Belize (A, B) and Bocas del Toro, Panama (C) A Closeup of dorsal cuticle showing dorsal uniancres, dorsolateral uniancres and spineless dorsal scales B Closeup of dorsal uiancres C Paratype (Cat. No. USNM 1145899) of Panamanian specimen showing the rosette organ (gland). Abbreviations: du dorsal uniancres, ep epidermal gland, lu lateral uniancre, ro rosette organ, TbVL ventrolateral adhesive tubes.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="3" type="adhesive tubes">
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<paragraph pageId="2" pageNumber="3">Adhesive tubes.</paragraph>
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<paragraph pageId="2" pageNumber="3">
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Anterior adhesive tubes (TbA), 8 per side to 12
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long, distributed along the mouth margin in a single row (Fig. 2B,C). TbL are absent. TbVL arranged in bilateral columns, to 23
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long, begin at PIJ and extend posteriorly on to the lateral edge of the caudal lobes; tubes on caudal lobe edges each ca. 15
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long (Fig. 2B). TbP distributed on caudal lobes as two terminal tubes to 16
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long and two medial tubes on the inner edge of the caudal lobes to 12
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="3" type="digestive tract">
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<paragraph pageId="2" pageNumber="3">Digestive tract.</paragraph>
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<paragraph pageId="2" pageNumber="3">
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Mouth terminal to 30
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<normalizedToken originalValue="µm">µm</normalizedToken>
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wide. Pharynx to 238
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long with pharyngeal pores at base around U32. Intestine narrow and tapering toward posterior end. Anus at U88.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="3" type="reproductive system">
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<paragraph pageId="2" pageNumber="3">Reproductive system.</paragraph>
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<paragraph pageId="2" pageNumber="3">
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Hermaphroditic, with paired testes at PIJ. Vasa deferentia extend posteriorly, but their point of termination was not observed. Glandular caudal organ, ca. 30
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long, at U90 (Fig. 2A). Rosette organ, ca. 27
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<normalizedToken originalValue="µm">µm</normalizedToken>
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diameter, present at U42 on left, dorsolateral surface. Glands of the rosette organ stain intensely with OsO4 (Fig. 3C). Single egg present, ca. 57
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<normalizedToken originalValue="µm">µm</normalizedToken>
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x 100
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(Fig. 1C).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |