290 lines
35 KiB
XML
290 lines
35 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1142.90097" ID-Pensoft-Pub="1313-2970-1142-1" ID-Pensoft-UUID="1D4BDF04F72B59B9984E00D0B4FB338D" ID-ZooBank="A1129EE50F9941CFB73AE771B66E2486" ModsDocID="1313-2970-1142-1" checkinTime="1674655519517" checkinUser="pensoft" docAuthor="Tongkerd, Piyoros, Tumpeesuwan, Sakboworn, Inkhavilay, Khamla, Prasankok, Pongpun, Jeratthitikul, Ekgachai, Panha, Somsak & Sutcharit, Chirasak" docDate="2023" docId="FEC65B2920D356C0BB61F5830F875C58" docLanguage="en" docName="ZooKeys 1142: 1-144" docOrigin="ZooKeys 1142" docPubDate="2023-01-24" docSource="http://dx.doi.org/10.3897/zookeys.1142.90097" docTitle="Rhiostoma cambodjense" docType="treatment" docVersion="2" id="1D4BDF04F72B59B9984E00D0B4FB338D" lastPageNumber="1" masterDocId="1D4BDF04F72B59B9984E00D0B4FB338D" masterDocTitle="Systematic revision of the snorkel snail genus Rhiostoma Benson, 1860 (Gastropoda, Caenogastropoda, Cyclophoridae) with descriptions of new species" masterLastPageNumber="144" masterPageNumber="1" pageNumber="1" updateTime="1674655828358" 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>Systematic revision of the snorkel snail genus Rhiostoma Benson, 1860 (Gastropoda, Caenogastropoda, Cyclophoridae) with descriptions of new species</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>Tongkerd, Piyoros</mods:namePart>
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<mods:affiliation>Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand</mods:affiliation>
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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:namePart>Tumpeesuwan, Sakboworn</mods:namePart>
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<mods:affiliation>Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand & Present address: Department of Biology, Faculty of Science, Mahasarakham University, Kantharawichai, Maha Sarakham 44150 Thailand</mods:affiliation>
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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>Inkhavilay, Khamla</mods:namePart>
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<mods:affiliation>Department of Biology, Faculty of Natural Science, National University of Laos, P. O. Box 7322, Dongdok, Vientiane, Laos</mods:affiliation>
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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>Prasankok, Pongpun</mods:namePart>
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<mods:affiliation>School of Biology, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand</mods:affiliation>
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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>Jeratthitikul, Ekgachai</mods:namePart>
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<mods:affiliation>Animal Systematics and Molecular Ecology Laboratory, Department of Biology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand</mods:affiliation>
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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:namePart>Panha, Somsak</mods:namePart>
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<mods:affiliation>Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand</mods:affiliation>
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<mods:nameIdentifier type="email">somsak.pan@chula.ac.th</mods:nameIdentifier>
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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:affiliation>Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand</mods:affiliation>
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<mods:nameIdentifier type="email">jirasak4@yahoo.com</mods:nameIdentifier>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:title>ZooKeys</mods:title>
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<mods:date>2023</mods:date>
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<mods:number>2023-01-24</mods:number>
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<mods:detail type="volume">
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<mods:number>1142</mods:number>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:url>http://dx.doi.org/10.3897/zookeys.1142.90097</mods:url>
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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.1142.90097</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-1142-1</mods:identifier>
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<mods:identifier type="ZooBank">A1129EE50F9941CFB73AE771B66E2486</mods:identifier>
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<treatment LSID="urn:lsid:plazi:treatment:FEC65B2920D356C0BB61F5830F875C58" httpUri="http://treatment.plazi.org/id/FEC65B2920D356C0BB61F5830F875C58" lastPageNumber="1" pageId="0" pageNumber="1">
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<subSubSection pageId="0" pageNumber="1" type="nomenclature">
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<paragraph pageId="0" pageNumber="1">
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22.
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<taxonomicName ID-CoL="7SZWR" LSID="FEC65B29-20D3-56C0-BB61-F5830F875C58" authority="(Morelet, 1875)" baseAuthorityName="Morelet" baseAuthorityYear="1875" class="Gastropoda" family="Cyclophoridae" genus="Rhiostoma" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Rhiostoma cambodjense" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="cambodjense">Rhiostoma cambodjense (Morelet, 1875)</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="description">
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<paragraph pageId="0" pageNumber="1">
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<figureCitation captionStart="Figure 44" captionStartId="F44" captionText="Figure 44. Distribution map of Rhiostoma morleti - species group." figureDoi="10.3897/zookeys.1142.90097.figure44" httpUri="https://binary.pensoft.net/fig/799902" pageId="0" pageNumber="1">Figs 44</figureCitation>
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<figureCitation captionStart="Figure 45" captionStartId="F45" captionText="Figure 45. Shell of Rhiostoma spp. A Rhiostoma cochinchinensis probable syntype NHMUK 20170354 from Cochinchina B-F Rhiostoma cambodjense B syntype NHMUK 1893.2.4.776 from Battambang, Cambodje C syntype of " Opisthoporus pulchellus Morlet, 1889 " MNHN-IM- 2000 - 9828 from Mount. Sisophon D specimen CUMZ 10203 / 2 from Thammaban Khiri, Serei Saophoan (Sisophon), Cambodia E, F specimens CUMZ 4714 from Khao Chakan, Srakeo. Photograph: A Robin and V Heros, MNHN (C)." figureDoi="10.3897/zookeys.1142.90097.figure45" httpUri="https://binary.pensoft.net/fig/799903" pageId="0" pageNumber="1">, 45B-F</figureCitation>
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<figureCitation captionStart="Figure 53" captionStartId="F53" captionText="Figure 53. Radula morphology A Rhiostoma cambodjense, specimens CUMZ 4714 from Khao Chakan, Srakeo B Rhiostoma cheliopegma sp. nov., paratype CUMZ CUMZ 3985 / 2 Tham Takien, Khao Chamao, Rayong C Rhiostoma gnomus sp. nov. paratype CUMZ 4717 from Pha Chu, Na Noi, Nan D Rhiostoma laosense sp. nov. specimen CUMZ 10205 from Tad Muang, Khammouane, Laos." figureDoi="10.3897/zookeys.1142.90097.figure53" httpUri="https://binary.pensoft.net/fig/799911" pageId="0" pageNumber="1">, 53A</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="reference_group">
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName authorityName="Morelet" authorityYear="1875" class="Gastropoda" family="Cyclophoridae" genus="Pterocyclos" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Pterocyclos cambodjensis" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="cambodjensis">Pterocyclos cambodjensis</taxonomicName>
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Morelet, 1875: 286, 287, pl. 13, fig. 1. Type locality: Battambang, Cambodje [Cambodia].
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<bibRefCitation author="Breure, ASH" journalOrPublisher="Nederlandse Malacologische Vereniging, Leiden" pageId="0" pageNumber="1" refId="B25" refString="Breure, ASH, Audibert, C, Ablett, JD, 2018. Pierre Marie Arthur Morelet (1809-1892) and his contributions to malacology. Nederlandse Malacologische Vereniging, Leiden" title="Pierre Marie Arthur Morelet (1809 - 1892) and his contributions to malacology." year="2018">Breure et al. 2018</bibRefCitation>
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: 232, figs 173, 174.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName authorityName="Morlet" authorityYear="1889" class="Gastropoda" family="Cyclophoridae" genus="Opisthoporus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Opisthoporus pulchellus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="pulchellus">Opisthoporus pulchellus</taxonomicName>
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Morlet, 1889: 154, 188-189, pl. 6, fig. 5. Type locality: Mount. Sisophon (Siam) [Serei Saophoan, Banteay Meanchey, Cambodia].
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<bibRefCitation DOI="https://doi.org/10.5962/bhl.title.14809" author="Fischer, P" journalOrPublisher="Extrait du Bulletin de la Societe ďHistoire Naturelle ďAutun" pageId="0" pageNumber="1" pagination="1 - 193" refId="B40" refString="Fischer, P, 1891. Catalogue et distribution geographique des mollusques terrestres, fluviatiles & marins ďune partie de ľIndo-Chine (Siam, Laos, Cambodge, Cochinchine, Annam, Tonkin). Extrait du Bulletin de la Societe ďHistoire Naturelle ďAutun 4: 1 - 193, DOI: https://doi.org/10.5962/bhl.title.14809" title="Catalogue et distribution geographique des mollusques terrestres, fluviatiles & marins ďune partie de ľIndo-Chine (Siam, Laos, Cambodge, Cochinchine, Annam, Tonkin)." url="https://doi.org/10.5962/bhl.title.14809" volume="4" year="1891">Fischer 1891</bibRefCitation>
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: 100. Kobelt and
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<normalizedToken originalValue="Möllendorff">Moellendorff</normalizedToken>
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1897: 119.
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<bibRefCitation author="Morlet, L" journalOrPublisher="Journal de Conchyliologie" pageId="0" pageNumber="1" refId="B107" refString="Morlet, L, 1904. Descriptions de mollusques nouveaux recueillis par M.A. Pavie en Indo-Chine: Premiere Classes Gasteropodes. Mission Pavie, Indo-Chine 1879-1895, Etudes diverse Tome III, Paris, 351-386." title="Descriptions de mollusques nouveaux recueillis par M. A. Pavie en Indo-Chine: Premiere Classes Gasteropodes. Mission Pavie, Indo-Chine 1879 - 1895, Etudes diverse Tome III, Paris, 351 - 386." year="1904">Morlet 1904</bibRefCitation>
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: 376, 377, pl. 21, figs 6, 6a.
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<bibRefCitation author="Fischer, H" editor="Pavie, A" journalOrPublisher="Ernest Leroux, Editeur, Paris" pageId="0" pageNumber="1" pagination="390 - 450" refId="B42" refString="Fischer, H, Dautzenberg, P, 1904. Catalogue des mollusques terrestres et fluviatites de ľIndo-Chine orientale cites jusqu a ce jour. In: Pavie, A, Ed., Mission Pavie, Indo-Chine 1879-1895, Etudes Diverse Recherches sur Ľhistoire Naturelle de Ľhistoire Indo-Chine Orientale, Tome III. Ernest Leroux, Editeur, Paris: 390 - 450" title="Catalogue des mollusques terrestres et fluviatites de ľIndo-Chine orientale cites jusqu a ce jour." volumeTitle="Mission Pavie, Indo-Chine 1879 - 1895, Etudes Diverse Recherches sur Ľhistoire Naturelle de Ľhistoire Indo-Chine Orientale, Tome III." year="1904">Fischer and Dautzenberg 1904</bibRefCitation>
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: 427. New synonym.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName class="Gastropoda" family="Cyclophoridae" genus="Opisthoporus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Opisthoporus cambodjensis" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="cambodjensis">Opisthoporus cambodjensis</taxonomicName>
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-
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<bibRefCitation DOI="https://doi.org/10.5962/bhl.title.14809" author="Fischer, P" journalOrPublisher="Extrait du Bulletin de la Societe ďHistoire Naturelle ďAutun" pageId="0" pageNumber="1" pagination="1 - 193" refId="B40" refString="Fischer, P, 1891. Catalogue et distribution geographique des mollusques terrestres, fluviatiles & marins ďune partie de ľIndo-Chine (Siam, Laos, Cambodge, Cochinchine, Annam, Tonkin). Extrait du Bulletin de la Societe ďHistoire Naturelle ďAutun 4: 1 - 193, DOI: https://doi.org/10.5962/bhl.title.14809" title="Catalogue et distribution geographique des mollusques terrestres, fluviatiles & marins ďune partie de ľIndo-Chine (Siam, Laos, Cambodge, Cochinchine, Annam, Tonkin)." url="https://doi.org/10.5962/bhl.title.14809" volume="4" year="1891">Fischer 1891</bibRefCitation>
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: 100.
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<bibRefCitation author="Fischer, H" editor="Pavie, A" journalOrPublisher="Ernest Leroux, Editeur, Paris" pageId="0" pageNumber="1" pagination="390 - 450" refId="B42" refString="Fischer, H, Dautzenberg, P, 1904. Catalogue des mollusques terrestres et fluviatites de ľIndo-Chine orientale cites jusqu a ce jour. In: Pavie, A, Ed., Mission Pavie, Indo-Chine 1879-1895, Etudes Diverse Recherches sur Ľhistoire Naturelle de Ľhistoire Indo-Chine Orientale, Tome III. Ernest Leroux, Editeur, Paris: 390 - 450" title="Catalogue des mollusques terrestres et fluviatites de ľIndo-Chine orientale cites jusqu a ce jour." volumeTitle="Mission Pavie, Indo-Chine 1879 - 1895, Etudes Diverse Recherches sur Ľhistoire Naturelle de Ľhistoire Indo-Chine Orientale, Tome III." year="1904">Fischer and Dautzenberg 1904</bibRefCitation>
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: 427.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName baseAuthorityName="Morlet" baseAuthorityYear="1889" class="Gastropoda" family="Cyclophoridae" genus="Cyclotus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cyclotus (Siphonocyclus) pulchellus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="pulchellus" subGenus="Siphonocyclus">Cyclotus (Siphonocyclus) pulchellus</taxonomicName>
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-
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<bibRefCitation author="Kobelt, W" journalOrPublisher="Das Tierreich" pageId="0" pageNumber="1" pagination="1 - 663" refId="B71" refString="Kobelt, W, 1902. Cyclophoridae. Das Tierreich 16: 1 - 663" title="Cyclophoridae." volume="16" year="1902">Kobelt 1902</bibRefCitation>
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: 210. Kobelt 1911: 815, pl. 121, figs 1, 2.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName baseAuthorityName="Morelet" baseAuthorityYear="1875" class="Gastropoda" family="Cyclophoridae" genus="Rhiostoma" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Rhiostoma cambodjense" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="cambodjense">Rhiostoma cambodjense</taxonomicName>
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-
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<bibRefCitation author="Kobelt, W" journalOrPublisher="Das Tierreich" pageId="0" pageNumber="1" pagination="1 - 663" refId="B71" refString="Kobelt, W, 1902. Cyclophoridae. Das Tierreich 16: 1 - 663" title="Cyclophoridae." volume="16" year="1902">Kobelt 1902</bibRefCitation>
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: 177. Kobelt 1911: 763, 764, pl. 113, figs 14-16.
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<bibRefCitation DOI="https://doi.org/10.3897/zookeys.842.29243" author="Sutcharit, C" journalOrPublisher="ZooKeys" pageId="0" pageNumber="1" pagination="1 - 65" refId="B160" refString="Sutcharit, C, Ablett, JD, Panha, S, 2019. An annotated type catalogue of seven genera of operculate land snails (Caenogastropoda, Cyclophoridae) in the Natural History Museum, London. ZooKeys 842: 1 - 65, DOI: https://doi.org/10.3897/zookeys.842.29243" title="An annotated type catalogue of seven genera of operculate land snails (Caenogastropoda, Cyclophoridae) in the Natural History Museum, London." url="https://doi.org/10.3897/zookeys.842.29243" volume="842" year="2019">Sutcharit et al. 2019</bibRefCitation>
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: 16, fig. 3i.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="type material">
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<paragraph pageId="0" pageNumber="1">Type material.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Syntype</emphasis>
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NHMUK 1893.2.4.766 (1 shell; Fig.
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<figureCitation captionStart="Figure 45" captionStartId="F45" captionText="Figure 45. Shell of Rhiostoma spp. A Rhiostoma cochinchinensis probable syntype NHMUK 20170354 from Cochinchina B-F Rhiostoma cambodjense B syntype NHMUK 1893.2.4.776 from Battambang, Cambodje C syntype of " Opisthoporus pulchellus Morlet, 1889 " MNHN-IM- 2000 - 9828 from Mount. Sisophon D specimen CUMZ 10203 / 2 from Thammaban Khiri, Serei Saophoan (Sisophon), Cambodia E, F specimens CUMZ 4714 from Khao Chakan, Srakeo. Photograph: A Robin and V Heros, MNHN (C)." figureDoi="10.3897/zookeys.1142.90097.figure45" httpUri="https://binary.pensoft.net/fig/799903" pageId="0" pageNumber="1">45B</figureCitation>
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) from Battambang.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Syntype</emphasis>
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MNHN-IM-2000-9828 (1 shell; Fig.
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<figureCitation captionStart="Figure 45" captionStartId="F45" captionText="Figure 45. Shell of Rhiostoma spp. A Rhiostoma cochinchinensis probable syntype NHMUK 20170354 from Cochinchina B-F Rhiostoma cambodjense B syntype NHMUK 1893.2.4.776 from Battambang, Cambodje C syntype of " Opisthoporus pulchellus Morlet, 1889 " MNHN-IM- 2000 - 9828 from Mount. Sisophon D specimen CUMZ 10203 / 2 from Thammaban Khiri, Serei Saophoan (Sisophon), Cambodia E, F specimens CUMZ 4714 from Khao Chakan, Srakeo. Photograph: A Robin and V Heros, MNHN (C)." figureDoi="10.3897/zookeys.1142.90097.figure45" httpUri="https://binary.pensoft.net/fig/799903" pageId="0" pageNumber="1">45C</figureCitation>
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) of
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<taxonomicName authorityName="Morlet" authorityYear="1889" class="Gastropoda" family="Cyclophoridae" genus="Opisthoporus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Opisthoporus pulchellus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="pulchellus">
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<emphasis italics="true" pageId="0" pageNumber="1">Opisthoporus pulchellus</emphasis>
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</taxonomicName>
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Morlet, 1889, from Mont Sisophon (Siam).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="materials_examined">
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<paragraph pageId="0" pageNumber="1">Other material examined.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" pageId="0" pageNumber="1">
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<collectingCountry name="Cambodia">Cambodia</collectingCountry>
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</emphasis>
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: Thammaban Khiri Temple, Serei Saophoan (Sisophon),
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<collectingRegion country="Cambodia" name="Banteay Meanchey">Banteay Meanchey</collectingRegion>
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: CUMZ 10203/2 (Fig.
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<figureCitation captionStart="Figure 45" captionStartId="F45" captionText="Figure 45. Shell of Rhiostoma spp. A Rhiostoma cochinchinensis probable syntype NHMUK 20170354 from Cochinchina B-F Rhiostoma cambodjense B syntype NHMUK 1893.2.4.776 from Battambang, Cambodje C syntype of " Opisthoporus pulchellus Morlet, 1889 " MNHN-IM- 2000 - 9828 from Mount. Sisophon D specimen CUMZ 10203 / 2 from Thammaban Khiri, Serei Saophoan (Sisophon), Cambodia E, F specimens CUMZ 4714 from Khao Chakan, Srakeo. Photograph: A Robin and V Heros, MNHN (C)." figureDoi="10.3897/zookeys.1142.90097.figure45" httpUri="https://binary.pensoft.net/fig/799903" pageId="0" pageNumber="1">45D</figureCitation>
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). Wat Kirirom Phnombak, Serei Saophoan (Sisophon),
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<collectingRegion country="Cambodia" name="Banteay Meanchey">Banteay Meanchey</collectingRegion>
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: CUMZ 10203/1.
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<emphasis bold="true" pageId="0" pageNumber="1">
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<collectingCountry name="Thailand">Thailand</collectingCountry>
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</emphasis>
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: Tham Khao Chakan, Khao Chakan, Srakeo: CUMZ 3810, 3953, 3854, 3856, 3860, 4714 (Figs
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<figureCitation captionStart="Figure 45" captionStartId="F45" captionText="Figure 45. Shell of Rhiostoma spp. A Rhiostoma cochinchinensis probable syntype NHMUK 20170354 from Cochinchina B-F Rhiostoma cambodjense B syntype NHMUK 1893.2.4.776 from Battambang, Cambodje C syntype of " Opisthoporus pulchellus Morlet, 1889 " MNHN-IM- 2000 - 9828 from Mount. Sisophon D specimen CUMZ 10203 / 2 from Thammaban Khiri, Serei Saophoan (Sisophon), Cambodia E, F specimens CUMZ 4714 from Khao Chakan, Srakeo. Photograph: A Robin and V Heros, MNHN (C)." figureDoi="10.3897/zookeys.1142.90097.figure45" httpUri="https://binary.pensoft.net/fig/799903" pageId="0" pageNumber="1">45E, F</figureCitation>
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,
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<figureCitation captionStart="Figure 53" captionStartId="F53" captionText="Figure 53. Radula morphology A Rhiostoma cambodjense, specimens CUMZ 4714 from Khao Chakan, Srakeo B Rhiostoma cheliopegma sp. nov., paratype CUMZ CUMZ 3985 / 2 Tham Takien, Khao Chamao, Rayong C Rhiostoma gnomus sp. nov. paratype CUMZ 4717 from Pha Chu, Na Noi, Nan D Rhiostoma laosense sp. nov. specimen CUMZ 10205 from Tad Muang, Khammouane, Laos." figureDoi="10.3897/zookeys.1142.90097.figure53" httpUri="https://binary.pensoft.net/fig/799911" pageId="0" pageNumber="1">53A</figureCitation>
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), 4734, 4813, 10122, 10123, 10124. Wat Khao Panom Sarapee, Khlong Had, Srakeo: CUMZ 10212.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="diagnosis">
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<paragraph pageId="0" pageNumber="1">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="1">Shell small, heliciform, detached whorl absent or inconspicuous, and breathing device notch-shaped. Peristome slightly thickened but not expanded, lip thickened, Shell colour yellowish to dark brown with zigzag patterns. Operculum calcareous, low cup-shaped.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="differential diagnosis">
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<paragraph pageId="0" pageNumber="1">Differential diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName baseAuthorityName="Morelet" baseAuthorityYear="1875" class="Gastropoda" family="Cyclophoridae" genus="Rhiostoma" kingdom="Animalia" lsidName="Rhiostoma cambodjense" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="cambodjense">
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<emphasis italics="true" pageId="0" pageNumber="1">Rhiostoma cambodjense</emphasis>
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</taxonomicName>
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can easily be distinguished from all other known
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<taxonomicName authorityName="Tongkerd & Tumpeesuwan & Inkhavilay & Prasankok & Jeratthitikul & Panha & Sutcharit" authorityYear="2023" class="Gastropoda" family="Cyclophoridae" genus="Rhiostoma" kingdom="Animalia" lsidName="Rhiostoma" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="1">Rhiostoma</emphasis>
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</taxonomicName>
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species (except
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<taxonomicName lsidName="R. gnomus" pageId="0" pageNumber="1" rank="species" species="gnomus">
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<emphasis italics="true" pageId="0" pageNumber="1">R. gnomus</emphasis>
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</taxonomicName>
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sp. nov.; for further comparison, see under that species) in having heliciform shell and narrow umbilicus. Although this species is superficially similar to
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<taxonomicName authorityName="Swainson" authorityYear="1840" class="Gastropoda" family="Cyclophoridae" genus="Cyclotus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cyclotus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="1">Cyclotus</emphasis>
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</taxonomicName>
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with a heliciform shell, the distinguishing characters are a notch-shaped breathing device, outer lip not expanded, and cup-shaped operculum with elevated lamella and straight lateral fringe. In contrast, the heliciform
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<taxonomicName authorityName="Swainson" authorityYear="1840" class="Gastropoda" family="Cyclophoridae" genus="Cyclotus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cyclotus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="1">Cyclotus</emphasis>
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</taxonomicName>
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tend to have an expanded outer lip, a concave operculum without elevated lamella, and a deep groove on the lateral fringe (Table
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<tableCitation captionStart="Table 2" captionStartId="T2" captionText="Table 2. Comparative shell morphology among six genera that are superficially similar to Rhiostoma. The characters are mainly based on the type species. The tribe classification for each genus follows Bouchet et al. (2017). References: 1 Benson (1860); 2 Moellendorff (1885), Kobelt (1906) and Yen (1939); 3 Kobelt (1902), Thiele (1929), Wenz (1938) and Egorov (2009); 4 Kobelt (1912), and Low and Tan (2017); 5 Gude (1921) and Kobelt (1911)." httpUri="http://table.plazi.org/id/5C627C074495CF042BE4EF8AEAD76EAF" pageId="0" pageNumber="1" tableUuid="5C627C074495CF042BE4EF8AEAD76EAF">2</tableCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="description">
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<paragraph pageId="0" pageNumber="1">Description.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" pageId="0" pageNumber="1">
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<emphasis italics="true" pageId="0" pageNumber="1">Shell</emphasis>
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.
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</emphasis>
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Shell small, width 16.5-18.7 mm, height 10.7-12.9 mm, thick or thin, and heliciform shape. Apex acute with dark colour; spire elevated. Whorls 4 to 5, convex, and increasing regularly; suture wide, shallow and with or without white subsutural band; last whorl rounded. Shell surface nearly smooth with fine growth lines. Periostracum thin, corneous, and transparent. Shell colour uniformly brownish, black, or with brown zigzag patterns, with narrow dark spiral band on periphery. Detached whorl usually absent (sometimes very short). Peristome circular and double; lip slightly thickened and expanded. Aperture opened laterally. Breathing device notch-shaped; outer lip protruding, with narrow groove; inner lip with shallow incision. Umbilicus narrowly opened and deep. Operculum calcareous, low cup-shaped, and multispiral (Fig.
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<figureCitation captionStart="Figure 45" captionStartId="F45" captionText="Figure 45. Shell of Rhiostoma spp. A Rhiostoma cochinchinensis probable syntype NHMUK 20170354 from Cochinchina B-F Rhiostoma cambodjense B syntype NHMUK 1893.2.4.776 from Battambang, Cambodje C syntype of " Opisthoporus pulchellus Morlet, 1889 " MNHN-IM- 2000 - 9828 from Mount. Sisophon D specimen CUMZ 10203 / 2 from Thammaban Khiri, Serei Saophoan (Sisophon), Cambodia E, F specimens CUMZ 4714 from Khao Chakan, Srakeo. Photograph: A Robin and V Heros, MNHN (C)." figureDoi="10.3897/zookeys.1142.90097.figure45" httpUri="https://binary.pensoft.net/fig/799903" pageId="0" pageNumber="1">45B-F</figureCitation>
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).
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" pageId="0" pageNumber="1">
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<emphasis italics="true" pageId="0" pageNumber="1">Radula</emphasis>
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.
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</emphasis>
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Taenioglossate radula arranged in inverted V-shaped row. Central tooth with well-developed central cusp and two lateral cusps on each side; central cusp large with pointed tip; lateral cusps triangular and tapering in size. Lateral teeth consisting of four cusps; central cusp large, triangular tip, and flanked by pointed tips of two inner cusps and one outer cusp. Inner and outer marginal teeth each composed of three cusps; central cusp large and pointed tip, and flanked by pointed tips of one inner cusp and one outer cusp (Fig.
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<figureCitation captionStart="Figure 53" captionStartId="F53" captionText="Figure 53. Radula morphology A Rhiostoma cambodjense, specimens CUMZ 4714 from Khao Chakan, Srakeo B Rhiostoma cheliopegma sp. nov., paratype CUMZ CUMZ 3985 / 2 Tham Takien, Khao Chamao, Rayong C Rhiostoma gnomus sp. nov. paratype CUMZ 4717 from Pha Chu, Na Noi, Nan D Rhiostoma laosense sp. nov. specimen CUMZ 10205 from Tad Muang, Khammouane, Laos." figureDoi="10.3897/zookeys.1142.90097.figure53" httpUri="https://binary.pensoft.net/fig/799911" pageId="0" pageNumber="1">53A</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="distribution">
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<paragraph pageId="0" pageNumber="1">Distribution.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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The previous records of this species were only from Cambodia (
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<bibRefCitation author="Morelet, A" journalOrPublisher="Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft" pageId="0" pageNumber="1" refId="B103" refString="Morelet, A, 1875. Series Conchyliologiques, comprenant Ľenummeration de mollusques terrestres et fluviatites, recueillis pendant le cours de differents voyages, ainsi que la description, de plusieurs especes nouvelles. IV.4e livraison Indo Chine, 227-377." title="Series Conchyliologiques, comprenant Ľenummeration de mollusques terrestres et fluviatites, recueillis pendant le cours de differents voyages, ainsi que la description, de plusieurs especes nouvelles. IV. 4 e livraison Indo Chine, 227 - 377." year="1875">Morelet 1875</bibRefCitation>
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;
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<bibRefCitation author="Morlet, L" journalOrPublisher="Journal de Conchyliologie" pageId="0" pageNumber="1" pagination="121 - 199" refId="B105" refString="Morlet, L, 1889. Catalogue des coquilles recueillies, par M. Pavie dans le Cambode et le Royaume de Siam, et description ď especes nouvelles (1). Journal de Conchyliologie 37: 121 - 199" title="Catalogue des coquilles recueillies, par M. Pavie dans le Cambode et le Royaume de Siam, et description ď especes nouvelles (1)." volume="37" year="1889">Morlet 1889</bibRefCitation>
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; Kobelt 1911). The recent record of this species is from Serei Saophoan in Banteay Meanchey Province and Battambang Province, Cambodia, and Srakeo Province in Thailand (Fig.
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<figureCitation captionStart="Figure 44" captionStartId="F44" captionText="Figure 44. Distribution map of Rhiostoma morleti - species group." figureDoi="10.3897/zookeys.1142.90097.figure44" httpUri="https://binary.pensoft.net/fig/799902" pageId="0" pageNumber="1">44</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="remarks">
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<paragraph pageId="0" pageNumber="1">Remarks.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName baseAuthorityName="Morelet" baseAuthorityYear="1875" class="Gastropoda" family="Cyclophoridae" genus="Rhiostoma" kingdom="Animalia" lsidName="Rhiostoma cambodjense" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="cambodjense">
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<emphasis italics="true" pageId="0" pageNumber="1">Rhiostoma cambodjense</emphasis>
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</taxonomicName>
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|
was described based on a specimen collected from Battambang in Cambodia (
|
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<bibRefCitation author="Morelet, A" journalOrPublisher="Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft" pageId="0" pageNumber="1" refId="B103" refString="Morelet, A, 1875. Series Conchyliologiques, comprenant Ľenummeration de mollusques terrestres et fluviatites, recueillis pendant le cours de differents voyages, ainsi que la description, de plusieurs especes nouvelles. IV.4e livraison Indo Chine, 227-377." title="Series Conchyliologiques, comprenant Ľenummeration de mollusques terrestres et fluviatites, recueillis pendant le cours de differents voyages, ainsi que la description, de plusieurs especes nouvelles. IV. 4 e livraison Indo Chine, 227 - 377." year="1875">Morelet 1875</bibRefCitation>
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). The syntype NHMUK 1893.2.4.766 (Fig.
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<figureCitation captionStart="Figure 45" captionStartId="F45" captionText="Figure 45. Shell of Rhiostoma spp. A Rhiostoma cochinchinensis probable syntype NHMUK 20170354 from Cochinchina B-F Rhiostoma cambodjense B syntype NHMUK 1893.2.4.776 from Battambang, Cambodje C syntype of " Opisthoporus pulchellus Morlet, 1889 " MNHN-IM- 2000 - 9828 from Mount. Sisophon D specimen CUMZ 10203 / 2 from Thammaban Khiri, Serei Saophoan (Sisophon), Cambodia E, F specimens CUMZ 4714 from Khao Chakan, Srakeo. Photograph: A Robin and V Heros, MNHN (C)." figureDoi="10.3897/zookeys.1142.90097.figure45" httpUri="https://binary.pensoft.net/fig/799903" pageId="0" pageNumber="1">45B</figureCitation>
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) seems to have an eroded periostracum and outer shell surface, where only a dark apex and traces of brownish colour pattern remain on the upper shell surface. However, the calcareous and low cup-shaped operculum with elevated lamellae present on the syntype clearly show the characters of the genus
|
|
<taxonomicName authorityName="Tongkerd & Tumpeesuwan & Inkhavilay & Prasankok & Jeratthitikul & Panha & Sutcharit" authorityYear="2023" class="Gastropoda" family="Cyclophoridae" genus="Rhiostoma" kingdom="Animalia" lsidName="Rhiostoma" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="1">Rhiostoma</emphasis>
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</taxonomicName>
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.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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The original description of
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<taxonomicName authorityName="Morlet" authorityYear="1889" class="Gastropoda" family="Cyclophoridae" genus="Opisthoporus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Opisthoporus pulchellus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="pulchellus">
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<emphasis italics="true" pageId="0" pageNumber="1">Opisthoporus pulchellus</emphasis>
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</taxonomicName>
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|
Morlet, 1889 includes an illustration of a specimen without an operculum. In this study, we re-visited the type locality and found that the specimens have a calcareous and low cup-shaped operculum, diagnostic of the
|
|
<taxonomicName authorityName="Tongkerd & Tumpeesuwan & Inkhavilay & Prasankok & Jeratthitikul & Panha & Sutcharit" authorityYear="2023" class="Gastropoda" family="Cyclophoridae" genus="Rhiostoma" kingdom="Animalia" lsidName="Rhiostoma" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
|
|
<emphasis italics="true" pageId="0" pageNumber="1">Rhiostoma</emphasis>
|
|
</taxonomicName>
|
|
. In contrast, the syntype of
|
|
<taxonomicName authorityName="Morlet" authorityYear="1889" class="Gastropoda" family="Cyclophoridae" genus="Opisthoporus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Opisthoporus pulchellus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="pulchellus">
|
|
<emphasis italics="true" pageId="0" pageNumber="1">Opisthoporus pulchellus</emphasis>
|
|
</taxonomicName>
|
|
Morlet, 1889 has a heliciform shell without a detached whorl, and a breathing device with notch shape. In addition, the type locality is Sisophon, whereas that of
|
|
<taxonomicName lsidName="R. cambodjense" pageId="0" pageNumber="1" rank="species" species="cambodjense">
|
|
<emphasis italics="true" pageId="0" pageNumber="1">R. cambodjense</emphasis>
|
|
</taxonomicName>
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|
is Battambang. These two localities are very close to each other (~70 km), and the type specimens are almost identical in shell characters except the brownish shell colour. Therefore, we consider
|
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<taxonomicName authorityName="Morlet" authorityYear="1889" class="Gastropoda" family="Cyclophoridae" genus="Opisthoporus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Opisthoporus pulchellus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="pulchellus">
|
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<emphasis italics="true" pageId="0" pageNumber="1">Opisthoporus pulchellus</emphasis>
|
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</taxonomicName>
|
|
Morlet, 1889 as a junior subjective synonym of
|
|
<taxonomicName lsidName="R. cambodjense" pageId="0" pageNumber="1" rank="species" species="cambodjense">
|
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<emphasis italics="true" pageId="0" pageNumber="1">R. cambodjense</emphasis>
|
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</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |