298 lines
26 KiB
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298 lines
26 KiB
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<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="209334AE539F7B5FD07F0F9C04D1EE8E" docLanguage="en" docName="ZooKeys 401: 45-107" docOrigin="ZooKeys 401" docSource="http://dx.doi.org/10.3897/zookeys.401.7075" docTitle="Discartemon discus " 1851" docType="treatment" docVersion="3" lastPageNumber="54" 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="52" 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:name type="personal">
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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: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: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: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: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: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="152052562" LSID="urn:lsid:plazi:treatment:209334AE539F7B5FD07F0F9C04D1EE8E" httpUri="http://treatment.plazi.org/id/209334AE539F7B5FD07F0F9C04D1EE8E" lastPageId="9" lastPageNumber="54" pageId="7" pageNumber="52">
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<subSubSection pageId="7" pageNumber="52" type="nomenclature">
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<paragraph pageId="7" pageNumber="52">
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1.
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<taxonomicName LSID="http://species-id.net/wiki/Discartemon_discus" authority="(Pfeiffer, 1853) [" 1851 "]" class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon discus" order="Stylommatophora" pageId="7" pageNumber="52" phylum="Mollusca" rank="species" species="discus">
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Discartemon discus (Pfeiffer, 1853) [
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<normalizedToken originalValue="“1851”">"1851"</normalizedToken>
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]
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</taxonomicName>
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Figs 4
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<normalizedToken originalValue="A–C">A-C</normalizedToken>
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, 11
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<normalizedToken originalValue="A–C">A-C</normalizedToken>
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, 22A, 23, Table 1
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="52" type="reference_group">
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<paragraph pageId="7" pageNumber="52">
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Streptaxis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Streptaxis discus" order="Stylommatophora" pageId="7" pageNumber="52" phylum="Mollusca" rank="species" species="discus">Streptaxis discus</taxonomicName>
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Pfeiffer, 1851: 252. Type locality: Unknown.
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<bibRefCitation author="Pfeiffer, L" journalOrPublisher="Brckhaus FA, Lipsiae" pageId="44" pageNumber="89" title="Monographia Heliceorum Viventium" year="1853">Pfeiffer 1853</bibRefCitation>
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: 289.
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<bibRefCitation pageId="7" pageNumber="52">Pfeiffer 1854</bibRefCitation>
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: 394, 395, pl. 145, figs 15-17.
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<bibRefCitation author="Ancey, CF" journalOrPublisher="Le Naturaliste" pageId="42" pageNumber="87" title="Sur les divisions proposees dans le genre Streptaxis." volume="50" year="1884">Ancey 1884</bibRefCitation>
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: 399.
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<bibRefCitation author="Tryon, GW Jr." journalOrPublisher="The Academy of Natural Science of Philadelphia" pageId="45" pageNumber="90" title="Manual of Conchology, Structure and Systematic, with Illustrations of the Species" url="10.5962/bhl.title.6534" year="1885">Tryon 1885</bibRefCitation>
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: 66, pl. 16, figs 77-79.
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<bibRefCitation author="Gude, GK" journalOrPublisher="Proceedings of the Malacological Society of London" pageId="43" pageNumber="88" pagination="201 - 244" title="A synopsis of the genus Streptaxis and its allies." volume="5" year="1903">Gude 1903</bibRefCitation>
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: 226.
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</paragraph>
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<paragraph pageId="7" pageNumber="52">
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon discus" order="Stylommatophora" pageId="7" pageNumber="52" phylum="Mollusca" rank="species" species="discus">Discartemon discus</taxonomicName>
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-
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<bibRefCitation author="Bourguignat, JR" journalOrPublisher="Imprimerie D. Dumoulin, Paris" pageId="42" pageNumber="87" title="Mollusques de Ľafrique Equatoriale de Moguedouchou a Bagamoyo et de Bagamoyo au Tanganika." year="1899">Bourguignat 1899</bibRefCitation>
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: 46.
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<bibRefCitation author="Richardson, L" journalOrPublisher="Tryonia" pageId="44" pageNumber="89" pagination="1 - 326" title="Streptaxacea: Catalog of species, Part I, Streptaxidae." volume="16" year="1988">Richardson 1988</bibRefCitation>
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: 182.
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<bibRefCitation pageId="7" pageNumber="52">Schileyko 2000</bibRefCitation>
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: 784, fig. 1022.
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</paragraph>
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<paragraph pageId="7" pageNumber="52">
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Streptaxis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Streptaxis (Discartemon) paradiscus" order="Stylommatophora" pageId="7" pageNumber="52" phylum="Mollusca" rank="species" species="paradiscus" subGenus="Discartemon">Streptaxis (Discartemon) paradiscus</taxonomicName>
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<normalizedToken originalValue="Möllendorff">Moellendorff</normalizedToken>
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, 1900: 117. Type locality: Phucson bei Touranne, Annam.
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<bibRefCitation author="Gude, GK" journalOrPublisher="Proceedings of the Malacological Society of London" pageId="43" pageNumber="88" pagination="201 - 244" title="A synopsis of the genus Streptaxis and its allies." volume="5" year="1903">Gude 1903</bibRefCitation>
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: 227.
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<bibRefCitation author="Ancey, CF" journalOrPublisher="Journal de Conchyliologie" pageId="42" pageNumber="87" pagination="288 - 316" title="Notes critiques et synonymiques." volume="52" year="1904">Ancey 1904</bibRefCitation>
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: 289, 290.
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</paragraph>
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<paragraph pageId="7" pageNumber="52">
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Odontartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Odontartemon (Discartemon) discus" order="Stylommatophora" pageId="7" pageNumber="52" phylum="Mollusca" rank="species" species="discus" subGenus="Discartemon">Odontartemon (Discartemon) discus</taxonomicName>
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-
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<bibRefCitation pageId="7" pageNumber="52">Kobelt 1906</bibRefCitation>
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: 97, pl. 55, figs 5-7.
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</paragraph>
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<paragraph pageId="7" pageNumber="52">
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Odontartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Odontartemon (Discartemon) paradiscus" order="Stylommatophora" pageId="7" pageNumber="52" phylum="Mollusca" rank="species" species="paradiscus" subGenus="Discartemon">Odontartemon (Discartemon) paradiscus</taxonomicName>
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-
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<bibRefCitation pageId="7" pageNumber="52">Kobelt 1906</bibRefCitation>
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: 97, 98, pl. 55, figs 8, 9.
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</paragraph>
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<paragraph pageId="7" pageNumber="52">
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon paradiscus" order="Stylommatophora" pageId="7" pageNumber="52" phylum="Mollusca" rank="species" species="paradiscus">Discartemon paradiscus</taxonomicName>
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-
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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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: 79.
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<bibRefCitation author="Zilch, A" editor="Schinderwolf, OH" journalOrPublisher="Gebrueder Borntraeger, Berlin" pageId="45" pageNumber="90" pagination="401 - 834" title="Gastropoda, Euthyneura." volumeTitle="Handbuch der Palaeozoologie" year="1960">Zilch 1960</bibRefCitation>
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: fig. 1961.
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<bibRefCitation author="Zilch, A" journalOrPublisher="Archiv fuer Molluskenkunde" pageId="45" pageNumber="90" pagination="79 - 120" title="Die Typen und Typoide des Natur-Museums Senckenberg 24: Mollusca, Streptaxidae." volume="90" year="1961">Zilch 1961</bibRefCitation>
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: 82, pl. 5, fig. 3.
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<bibRefCitation author="Schileyko, AA" journalOrPublisher="Ruthenica" pageId="44" pageNumber="89" pagination="1 - 68" title="Check-list of land pulmonate molluscs of Vietnam (Gastropoda: Stylommatophora)." volume="21" year="2011">Schileyko 2011</bibRefCitation>
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: 22, 23.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="52" type="material examined">
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<paragraph pageId="7" pageNumber="52">Material examined.</paragraph>
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<paragraph pageId="7" pageNumber="52">
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This species was described from specimens from the H. Cuming collection. The number of specimens was not indicated, but only one set of measurements was given in the original description. Only one specimen from the H. Cuming collection at NHMUK has
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<normalizedToken originalValue="Pfeiffer’s">Pfeiffer's</normalizedToken>
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handwriting on the species name label. It is identical to the illustration and measurements in
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<bibRefCitation pageId="7" pageNumber="52">Pfeiffer (1854</bibRefCitation>
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: 394, 395, pl. 145, figs 15-17) and is designated here as the lectotype to stabilize the name: NHMUK 20130684 (Fig. 4A).
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</paragraph>
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<paragraph pageId="7" pageNumber="52">
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Lectotype of
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Streptaxis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Streptaxis paradiscus" order="Stylommatophora" pageId="7" pageNumber="52" phylum="Mollusca" rank="species" species="paradiscus">Streptaxis paradiscus</taxonomicName>
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<normalizedToken originalValue="Möllendorff">Moellendorff</normalizedToken>
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, 1900 SMF 108534 (Fig. 4B) and paralectotypes SMF 108535 (5 shells). Marble Mountain, Da Nang, Vietnam (
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<geoCoordinate direction="north" orientation="latitude" precision="1" value="16.003723">16°0'13.4"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="1" value="108.26364">108°15'49.1"E</geoCoordinate>
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): CUMZ 6001 (39 shells; Fig. 4C), 6257 (6 specimens in ethanol; Figs 11A, B, 22A). Annam: MNHN Jousseaume Coll. (1 shells), MNHN Denis Coll. (2 shells), MNHN Letellier Coll. (3 shells), NHMW 40858 (2 shells), NHMUK 1901.12.23.13-14 (2 shells), NHMUK Trechmann coll. Acc. 2176 (2 shells), NHMUK Connolly Coll. Acc. 2154 (1 shell), RMNH Fruhstorfer Coll. 45a (1 shell), RMNH Saverbgen Coll. (2 shells). Tourane [=Da Nang], Central Annam: NHMUK McAndrew coll. Acc. 1563 (2 shells). Touraine, Annam: NHMW Rusnov Coll. R 283 (2 shells), NMW 1955.158.25251 (1 shell), RMNH Verdcourt Coll. (2 shells), ZMB 6619 (3 shells), ZMB 52300 (3 shells). Phuc-Son, Annam: NHMW 31140 (1 shell).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="9" lastPageNumber="54" pageId="7" pageNumber="52" type="description">
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<paragraph pageId="7" pageNumber="52">Description.</paragraph>
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<paragraph pageId="7" pageNumber="52">
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Shell. Shell flattened, white and translucent; whorls 6
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<normalizedToken originalValue="–6½">-61/2</normalizedToken>
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; spire flattened with distinct suture. Shell surface glossy, smooth with growth lines and 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 very wide, shallow and showing all preceding whorls. Aperture semi-ovate; peristome discontinuous, thickened, expanded and reflected; apertural dentition with only one parietal lamella (Fig. 4
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<normalizedToken originalValue="A–C">A-C</normalizedToken>
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).
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</paragraph>
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<paragraph pageId="8" pageNumber="53">
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<pageBreakToken pageId="8" pageNumber="53" start="start">Radula</pageBreakToken>
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. Each row consists of 61-67 teeth with formula (30-33)-1-(30-33). Central tooth very small and triangular with pointed cusp. Lateral and marginal teeth undifferentiated, unicuspid and lanceolate. Latero-marginal teeth gradually reduce in size, with outermost teeth smaller and shorter than inner teeth (Fig. 22A).
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</paragraph>
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<paragraph pageId="8" pageNumber="53">Genital organs. Atrium (at) short; penis (p) long and slender. Penial sheath (ps) thin, extending about half to third-fourths of penis length; penial sheath retractor muscle (psr) very thin, originating at atrium and inserting at distal end of penial sheath (Fig. 11A). Vas deferens (vd) passes through a very short part of penial sheath before entering into penis distally (Fig. 11B). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction.</paragraph>
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<paragraph pageId="9" pageNumber="54">
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<pageBreakToken pageId="9" pageNumber="54" start="start">Vagina</pageBreakToken>
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(v) long, cylindrical, about two thirds of penis length. Gametolytic duct (gd) a long tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) short; oviduct (ov) enlarged and folded. Prostate gland inconspicuous and bound to oviduct. Talon (ta) small. Hermaphroditic duct (hd) bearing long seminal vesicle (sv) about one and half times longer than the length from talon to branching point of seminal vesicle (Fig. 11A).
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</paragraph>
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<paragraph pageId="9" pageNumber="54">Pallial system. Excretory system typically sigmurethran and without mantle gland. Heart (h, auricles and ventricle) located left of kidney (on right in Fig. 11C). Pulmonary cavity approximately three times longer than broad. Pulmonary vein (puv) and venation on lung roof distinct and well developed. Kidney (k) very short, located at posterior of pulmonary cavity. Ureter (ur) sigmoid, closed tube arising from apex of kidney, extending along right side of kidney, recurving adjacent to rectum (rt). Anus (a) adjacent to pneumostome (pn) on mantle collar.</paragraph>
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<caption ID-Table-UUID="7C2D034508B327A3BE90A9444C3A68C7" httpUri="http://table.plazi.org/id/7C2D034508B327A3BE90A9444C3A68C7" pageId="9" pageNumber="54">
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<paragraph pageId="9" pageNumber="54">
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Table 1. Shell measurements of
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="genus">Discartemon</taxonomicName>
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spp (
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<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon discus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="discus">Discartemon discus</taxonomicName>
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-group). Specimen collections and catalogue numbers indicated in parentheses.
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</paragraph>
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</caption>
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<paragraph pageId="9" pageNumber="54">
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<table pageId="9" pageNumber="54">
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<tr pageId="9" pageNumber="54">
|
|||
|
|
<th colspan="1" pageId="9" pageNumber="54" rowspan="2">Species and locality and CUMZ nos</th>
|
|||
|
|
<th colspan="1" pageId="9" pageNumber="54" rowspan="2">No. of specimens</th>
|
|||
|
|
<th colspan="3" pageId="9" pageNumber="54" rowspan="1">
|
|||
|
|
Ranges, mean
|
|||
|
|
<normalizedToken originalValue="±">+/-</normalizedToken>
|
|||
|
|
S.D. in mm of:
|
|||
|
|
</th>
|
|||
|
|
<th colspan="1" pageId="9" pageNumber="54" rowspan="2">Number of whorls</th>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="9" pageNumber="54">
|
|||
|
|
<th colspan="1" pageId="9" pageNumber="54" rowspan="1">Shell height</th>
|
|||
|
|
<th colspan="1" pageId="9" pageNumber="54" rowspan="1">Shell width</th>
|
|||
|
|
<th colspan="1" pageId="9" pageNumber="54" rowspan="1">H/W ratio</th>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="9" pageNumber="54">
|
|||
|
|
<td colspan="6" pageId="9" pageNumber="54" rowspan="1">
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon discus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="discus">Discartemon discus</taxonomicName>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="9" pageNumber="54">
|
|||
|
|
<td colspan="6" pageId="9" pageNumber="54" rowspan="1">
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon nummus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="nummus">Discartemon nummus</taxonomicName>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="9" pageNumber="54">
|
|||
|
|
<td colspan="6" pageId="9" pageNumber="54" rowspan="1">
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon khaosokensis" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="khaosokensis">Discartemon khaosokensis</taxonomicName>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="9" pageNumber="54">
|
|||
|
|
<td colspan="6" pageId="9" pageNumber="54" rowspan="1">
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon discadentus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="discadentus">Discartemon discadentus</taxonomicName>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="9" pageNumber="54">
|
|||
|
|
<td colspan="6" pageId="9" pageNumber="54" rowspan="1">
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon discamaximus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="discamaximus">Discartemon discamaximus</taxonomicName>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="9" pageNumber="54">
|
|||
|
|
<td colspan="6" pageId="9" pageNumber="54" rowspan="1">
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon circulus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="circulus">Discartemon circulus</taxonomicName>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="9" pageNumber="54">
|
|||
|
|
<td colspan="6" pageId="9" pageNumber="54" rowspan="1">
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon deprima" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="deprima">Discartemon deprima</taxonomicName>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="9" pageNumber="54">
|
|||
|
|
<td colspan="6" pageId="9" pageNumber="54" rowspan="1">
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon expandus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="expandus">Discartemon expandus</taxonomicName>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</table>
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
<subSubSection pageId="9" pageNumber="54" type="remarks">
|
|||
|
|
<paragraph pageId="9" pageNumber="54">Remarks.</paragraph>
|
|||
|
|
<paragraph pageId="9" pageNumber="54">
|
|||
|
|
The type specimen discovered in the H. Cuming collection at NHMUK elucidates two issues. Firstly,
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Streptaxis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Streptaxis paradiscus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="paradiscus">Streptaxis paradiscus</taxonomicName>
|
|||
|
|
<normalizedToken originalValue="Möllendorff">Moellendorff</normalizedToken>
|
|||
|
|
, 1900 has been recognized as a separate species in many works (
|
|||
|
|
<bibRefCitation author="Moellendorff, OF von" journalOrPublisher="Nachrichtsblatt der Deutchen Malakozoologischen Gesellschaft" pageId="43" pageNumber="88" pagination="117 - 121" title="Zur binnenmollusken-fauna Annans III." volume="32" year="1900">
|
|||
|
|
<normalizedToken originalValue="Möllendorff">Moellendorff</normalizedToken>
|
|||
|
|
1900
|
|||
|
|
</bibRefCitation>
|
|||
|
|
,
|
|||
|
|
<bibRefCitation author="Gude, GK" journalOrPublisher="Proceedings of the Malacological Society of London" pageId="43" pageNumber="88" pagination="201 - 244" title="A synopsis of the genus Streptaxis and its allies." volume="5" year="1903">Gude 1903</bibRefCitation>
|
|||
|
|
,
|
|||
|
|
<bibRefCitation pageId="9" pageNumber="54">Kobelt 1906</bibRefCitation>
|
|||
|
|
,
|
|||
|
|
<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>
|
|||
|
|
,
|
|||
|
|
<bibRefCitation author="Zilch, A" editor="Schinderwolf, OH" journalOrPublisher="Gebrueder Borntraeger, Berlin" pageId="45" pageNumber="90" pagination="401 - 834" title="Gastropoda, Euthyneura." volumeTitle="Handbuch der Palaeozoologie" year="1960">Zilch 1960</bibRefCitation>
|
|||
|
|
,
|
|||
|
|
<bibRefCitation author="Zilch, A" journalOrPublisher="Archiv fuer Molluskenkunde" pageId="45" pageNumber="90" pagination="79 - 120" title="Die Typen und Typoide des Natur-Museums Senckenberg 24: Mollusca, Streptaxidae." volume="90" year="1961">1961</bibRefCitation>
|
|||
|
|
,
|
|||
|
|
<bibRefCitation author="Schileyko, AA" journalOrPublisher="Ruthenica" pageId="44" pageNumber="89" pagination="1 - 68" title="Check-list of land pulmonate molluscs of Vietnam (Gastropoda: Stylommatophora)." volume="21" year="2011">Schileyko 2011</bibRefCitation>
|
|||
|
|
). However, based on the type specimens,
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon discus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="discus">Discartemon discus</taxonomicName>
|
|||
|
|
and
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Streptaxis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Streptaxis paradiscus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="paradiscus">Streptaxis paradiscus</taxonomicName>
|
|||
|
|
are identical in all shell characters. Therefore, we officially place
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Streptaxis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Streptaxis paradiscus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="paradiscus">Streptaxis paradiscus</taxonomicName>
|
|||
|
|
as a junior subjective synonym of
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon discus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="discus">Discartemon discus</taxonomicName>
|
|||
|
|
. Second,
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Discartemon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Discartemon discus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="discus">Discartemon discus</taxonomicName>
|
|||
|
|
had an unknown type locality and range (
|
|||
|
|
<bibRefCitation author="Pfeiffer, L" journalOrPublisher="Proceedings of the Zoological Society of London" pageId="44" pageNumber="89" pagination="252 - 263" title="Description of fifty-four new species of Helicea, from the collection of Hugh Cuming, Esq." url="10.1111/j.1096-3642.1851.tb01174.x" volume="1851" year="1851">Pfeiffer 1851</bibRefCitation>
|
|||
|
|
: 252). From the new material and the type locality of
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Streptaxis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Streptaxis paradiscus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="paradiscus">Streptaxis paradiscus</taxonomicName>
|
|||
|
|
, the distribution of this species is demarcated to several localities in the area of Da Nang, Vietnam (
|
|||
|
|
<bibRefCitation author="Schileyko, AA" journalOrPublisher="Ruthenica" pageId="44" pageNumber="89" pagination="1 - 68" title="Check-list of land pulmonate molluscs of Vietnam (Gastropoda: Stylommatophora)." volume="21" year="2011">Schileyko 2011</bibRefCitation>
|
|||
|
|
).
|
|||
|
|
</paragraph>
|
|||
|
|
<paragraph pageId="9" pageNumber="54">
|
|||
|
|
The record of
|
|||
|
|
<taxonomicName class="Gastropoda" family="Streptaxidae" genus="Streptaxis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Streptaxis discus" order="Stylommatophora" pageId="9" pageNumber="54" phylum="Mollusca" rank="species" species="discus">Streptaxis discus</taxonomicName>
|
|||
|
|
from Brazil, mentioned in
|
|||
|
|
<bibRefCitation author="Bourguignat, JR" journalOrPublisher="Imprimerie D. Dumoulin, Paris" pageId="42" pageNumber="87" title="Mollusques de Ľafrique Equatoriale de Moguedouchou a Bagamoyo et de Bagamoyo au Tanganika." year="1899">Bourguignat (1899)</bibRefCitation>
|
|||
|
|
is almost certainly an error, since it is far beyond the distribution range of the genus. The specimen figured in
|
|||
|
|
<bibRefCitation author="Simone, LRL" journalOrPublisher="Museum de Zoologia Universidade de Sao Paulo, Brazil" pageId="44" pageNumber="89" title="Land and freshwater molluscs of Brazil." year="2006">Simone (2006</bibRefCitation>
|
|||
|
|
: 191, fig. 708, reg. NHMUK Trechmann Acc. 2176) has the locality Annam [= central Vietnam].
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
</treatment>
|
|||
|
|
</document>
|