167 lines
13 KiB
XML
167 lines
13 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.401.7075" ID-GBIF-Dataset="bed72a2a-b126-495d-be31-c046b065f57d" ID-PMC="PMC4023267" ID-Pensoft-Pub="1313-2970-401-45" ID-PubMed="24843260" ID-ZBK="03F455BB9AA64D5DA89246C6A6D3F42A" ModsDocAuthor="" ModsDocDate="2014" ModsDocID="1313-2970-401-45" ModsDocOrigin="ZooKeys 401" ModsDocTitle="Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae)" checkinTime="1451245981463" checkinUser="pensoft" docAuthor="Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben & Panha, Somsak" docDate="2014" docId="F3FE78E3033BAAE61E5E5096AA48A491" docLanguage="en" docName="ZooKeys 401: 45-107" docOrigin="ZooKeys 401" docSource="http://dx.doi.org/10.3897/zookeys.401.7075" docTitle="Discartemon triancus Siriboon & Panha, sp. n." docType="treatment" docUuid="B067FBAC-0911-44A2-9949-D8C3DDDA2397" docUuidSource="ZooBank" docVersion="4" lastPageNumber="85" masterDocId="FFC1FFB4FFBBFFC5FF9AFFC9FFBFEB04" masterDocTitle="Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae)" masterLastPageNumber="107" masterPageNumber="45" pageNumber="84" updateTime="1668158229784" 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 the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae)</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>Siriboon, Thanit</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>Sutcharit, Chirasak</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>Naggs, Fred</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>Rowson, Ben</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>Panha, Somsak</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>2014</mods:date>
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<mods:detail type="volume">
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<mods:number>401</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>45</mods:start>
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<mods:end>107</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.401.7075</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.401.7075</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-401-45</mods:identifier>
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<mods:identifier type="ZBK">03F455BB9AA64D5DA89246C6A6D3F42A</mods:identifier>
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<mods:identifier type="ZooBank">03F455BB9AA64D5DA89246C6A6D3F42A</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152052539" LSID="urn:lsid:zoobank.org:act:B067FBAC-0911-44A2-9949-D8C3DDDA2397" httpUri="http://treatment.plazi.org/id/F3FE78E3033BAAE61E5E5096AA48A491" lastPageId="40" lastPageNumber="85" pageId="39" pageNumber="84">
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<subSubSection pageId="39" pageNumber="84" type="nomenclature">
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<paragraph pageId="39" pageNumber="84">
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<pageBreakToken pageId="39" pageNumber="84" start="start">26</pageBreakToken>
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.
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<taxonomicName LSID="http://zoobank.org/B067FBAC-0911-44A2-9949-D8C3DDDA2397" authority="Siriboon & Panha" class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon triancus" order="Stylommatophora" pageId="39" pageNumber="84" phylum="Mollusca" rank="species" species="triancus">Discartemon triancus Siriboon & Panha</taxonomicName>
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<taxonomicNameLabel pageId="39" pageNumber="84">sp. n.</taxonomicNameLabel>
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Figs 3F, 10C, D, 16
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<normalizedToken originalValue="D–F">D-F</normalizedToken>
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, 21
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<normalizedToken originalValue="G–L">G-L</normalizedToken>
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, 22H, 23, Table 3
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</paragraph>
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</subSubSection>
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<subSubSection pageId="39" pageNumber="84" type="type material">
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<paragraph pageId="39" pageNumber="84">Type material.</paragraph>
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<paragraph pageId="39" pageNumber="84">Holotype CUMZ 6254 (Fig. 10C). Measurement: shell height 4.6 mm, shell width 7.3 mm, and with 6 whorls. Paratypes: CUMZ 6032 (2 shells), 6236 (6 specimens in ethanol), and NHMUK 20130682 (2 shells) from the type locality.</paragraph>
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</subSubSection>
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<subSubSection pageId="39" pageNumber="84" type="type locality">
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<paragraph pageId="39" pageNumber="84">Type locality.</paragraph>
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<paragraph pageId="39" pageNumber="84">
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Gunung Kilian, Perlis, Malaysia,
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<geoCoordinate direction="north" orientation="latitude" precision="1" value="6.5688887">6°34'8.0"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="1" value="100.19567">100°11'44.4"E</geoCoordinate>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="39" pageNumber="84" type="diagnosis">
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<paragraph pageId="39" pageNumber="84">Diagnosis.</paragraph>
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<paragraph pageId="39" pageNumber="84">
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This new species is superficially similar to
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon roebeleni" order="Stylommatophora" pageId="39" pageNumber="84" phylum="Mollusca" rank="species" species="roebeleni">Discartemon roebeleni</taxonomicName>
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and
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon kotanensis" order="Stylommatophora" pageId="39" pageNumber="84" phylum="Mollusca" rank="species" species="kotanensis">Discartemon kotanensis</taxonomicName>
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sp. n., but the distinguishing characters are the smaller shell, lower spire, angular last whorl, very long penis and free oviduct, short seminal vesicle, and penial hooks with elongated bases.
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon triancus" order="Stylommatophora" pageId="39" pageNumber="84" phylum="Mollusca" rank="species" species="triancus">Discartemon triancus</taxonomicName>
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sp. n. can be distinguished from
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon megalostraka" order="Stylommatophora" pageId="39" pageNumber="84" phylum="Mollusca" rank="species" species="megalostraka">Discartemon megalostraka</taxonomicName>
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sp. n. by having a smaller shell, lower spire, four apertural lamellae, a longer penis, short free oviduct, and slender penial hooks with elongated bases.
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon triancus" order="Stylommatophora" pageId="39" pageNumber="84" phylum="Mollusca" rank="species" species="triancus">Discartemon triancus</taxonomicName>
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sp. n. differs from
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon conicus" order="Stylommatophora" pageId="39" pageNumber="84" phylum="Mollusca" rank="species" species="conicus">Discartemon conicus</taxonomicName>
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sp. n. in having a lower spire with shallow suture, transverse ridges, in lacking a sinulus, and in having four apertural lamellae.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="40" lastPageNumber="85" pageId="39" pageNumber="84" type="description">
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<paragraph pageId="39" pageNumber="84">Description.</paragraph>
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<paragraph pageId="39" pageNumber="84">
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Shell. Shell globose-heliciform, white and translucent; whorls
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<normalizedToken originalValue="5½–">51/2-</normalizedToken>
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6, spire only slightly convex, with distinct suture. Shell surface glossy with transverse ridges that diminish below the periphery; varices present. Embryonic shell large, about
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<normalizedToken originalValue="2½">21/2</normalizedToken>
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whorls, with a smooth surface; following whorls regularly coiled. Last whorl angular, regularly expanded; umbilicus widely open and deep. Aperture subcircular; peristome discontinuous, thin and expanded. Apertural dentition of one parietal, one palatal, one small basal and one columellar lamella (Fig. 10C).
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</paragraph>
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<paragraph pageId="39" pageNumber="84">Radula. Each row consists of 27-43 teeth with formula (13-21)-1-(13-21). The central tooth is very small with pointed cusp. Lateral and marginal teeth are undifferentiated, unicuspid and lanceolate. Latero-marginal teeth gradually reduce in size, with outermost teeth much smaller and shorter than inner teeth (Fig. 22H).</paragraph>
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<paragraph pageId="39" pageNumber="84">Genital organs. Atrium (at) very short. Penis (p) extremely thin, long; becoming enlarged distally. Penial sheath (ps) thin, extending about half of penis length. Penial sheath retractor muscle very thin (psr), originating at atrium and inserting distally on penial sheath (Fig. 16D). Vas deferens (vd) passes a very short distance through penial sheath before entering into penis distally (Fig. 16E). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction.</paragraph>
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<paragraph pageId="39" pageNumber="84">
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Internal wall of atrium generally smooth with pores (Fig. 21G). Penial wall with scattered and transparent penial hooks, about 11 hooks/200
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<normalizedToken originalValue="µm">µm</normalizedToken>
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2 (Fig. 21H). Hooks located on penial wall. Penial hooks small (<0.04 mm in length), short, with strongly elongated bases, tips pointed, and curved towards genital orifice (Fig. 21
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<normalizedToken originalValue="I–K">I-K</normalizedToken>
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).
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</paragraph>
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<paragraph lastPageId="40" lastPageNumber="85" pageId="39" pageNumber="84">
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Vagina (v) short. Gametolytic duct (gd) a long and slender tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) with almost same diameter as vagina and about twice as long as vagina. Oviduct (ov) enlarged and folded; prostate gland inconspicuous. Talon (ta) small, short and slender. Hermaphroditic duct (hd)
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<pageBreakToken pageId="40" pageNumber="85" start="start">bearing</pageBreakToken>
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a short seminal vesicle (sv) nearly equal to the length from talon to branching point of seminal vesicle (Fig. 16F).
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</paragraph>
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<paragraph pageId="40" pageNumber="85">Vaginal wall with longitudinal vaginal folds (Fig. 21L).</paragraph>
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</subSubSection>
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<subSubSection pageId="40" pageNumber="85" type="etymology">
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<paragraph pageId="40" pageNumber="85">Etymology.</paragraph>
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<paragraph pageId="40" pageNumber="85">
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The specific epithet
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<normalizedToken originalValue="“triancus”">"triancus"</normalizedToken>
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is derived from the Latin
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<normalizedToken originalValue="“triangulum”">"triangulum"</normalizedToken>
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meaning
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<normalizedToken originalValue="“triangle”">"triangle"</normalizedToken>
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and
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<normalizedToken originalValue="“uncus”">"uncus"</normalizedToken>
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meaning
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<normalizedToken originalValue="“hook”">"hook"</normalizedToken>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="40" pageNumber="85" type="distribution">
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<paragraph pageId="40" pageNumber="85">Distribution.</paragraph>
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<paragraph pageId="40" pageNumber="85">Known only from the type locality.</paragraph>
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</subSubSection>
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<subSubSection pageId="40" pageNumber="85" type="remarks">
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<paragraph pageId="40" pageNumber="85">Remarks.</paragraph>
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<paragraph pageId="40" pageNumber="85">
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Material from Gunung Kilian, Perlis, Malaysia was firstly identified as
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon roebeleni" order="Stylommatophora" pageId="40" pageNumber="85" phylum="Mollusca" rank="species" species="roebeleni">Discartemon roebeleni</taxonomicName>
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(
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<normalizedToken originalValue="Möllendorff">Moellendorff</normalizedToken>
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, 1894) by
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<bibRefCitation author="Benthem Jutting, WSS van" journalOrPublisher="Bulletin of the Raffles Museum" pageId="42" pageNumber="87" pagination="71 - 106" title="The Malayan Streptaxidae of the genera Discartemon and Oophana." volume="25" year="1954">Benthem Jutting (1954)</bibRefCitation>
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, without any anatomical comparison. However, clear anatomical differences between this new species and
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon roebeleni" order="Stylommatophora" pageId="40" pageNumber="85" phylum="Mollusca" rank="species" species="roebeleni">Discartemon roebeleni</taxonomicName>
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, so it is considered a new species.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |