154 lines
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154 lines
16 KiB
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<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="1C73CAC1D1355CD3862B41F4174E2DD7" 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="Pterocyclos Benson 1832" 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:role>
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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:role>
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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: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>2023</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2023-01-24</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>1142</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>144</mods:end>
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</mods:part>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.1142.90097</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.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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<mods:identifier type="Pensoft-UUID">1D4BDF04F72B59B9984E00D0B4FB338D</mods:identifier>
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<treatment LSID="urn:lsid:plazi:treatment:1C73CAC1D1355CD3862B41F4174E2DD7" httpUri="http://treatment.plazi.org/id/1C73CAC1D1355CD3862B41F4174E2DD7" 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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Genus
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<taxonomicName ID-CoL="87H6B" ID-ENA="495011" LSID="1C73CAC1-D135-5CD3-862B-41F4174E2DD7" authority="Benson, 1832" authorityName="Benson" authorityYear="1832" class="Gastropoda" family="Cyclophoridae" genus="Pterocyclos" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Pterocyclos" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Pterocyclos Benson, 1832</taxonomicName>
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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="Benson" authorityYear="1832" class="Gastropoda" family="Cyclophoridae" genus="Pterocyclos" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Pterocyclos" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Pterocyclos</taxonomicName>
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Benson, 1832: 11. Wenz, 1938: 461.
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<bibRefCitation author="Egorov, R" journalOrPublisher="Proceedings of the Zoological Society of London, Series A" pageId="0" pageNumber="1" refId="B38" refString="Egorov, R, 2009. A review of the genera of the recent terrestrial pectinibranch molluscs (synopsis mainly based on published data). Littoriniformes: Hainesiidae, Aciculidae, Cyclophoridae, Craspedopomatidae. Treasure of Russian Shells (Supplement 3, Part 2): 1-57." title="A review of the genera of the recent terrestrial pectinibranch molluscs (synopsis mainly based on published data). Littoriniformes: Hainesiidae, Aciculidae, Cyclophoridae, Craspedopomatidae. Treasure of Russian Shells (Supplement 3, Part 2): 1 - 57." year="2009">Egorov 2009</bibRefCitation>
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: 35.
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<bibRefCitation author="Sutcharit, C" journalOrPublisher="The Raffles Bulletin of Zoology" pageId="0" pageNumber="1" pagination="330 - 338" refId="B159" refString="Sutcharit, C, Tongkerd, P, Panha, S, 2014. The land snail genus Pterocyclos Benson, 1832 (Caenogastropoda: Cyclophoridae) from Thailand and Peninsular Malaysia, with description of two new species. The Raffles Bulletin of Zoology 62: 330 - 338" title="The land snail genus Pterocyclos Benson, 1832 (Caenogastropoda: Cyclophoridae) from Thailand and Peninsular Malaysia, with description of two new species." volume="62" year="2014">Sutcharit et al. 2014</bibRefCitation>
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: 331-333.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName class="Gastropoda" family="Cyclophoridae" genus="Pterocyclus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pterocyclus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Pterocyclus</taxonomicName>
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Agassiz, 1848: 908 [unjustified emendation].
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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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: 160, 161. Kobelt 1911: 719.
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<bibRefCitation author="Gude, GK" editor="Shipley, AS" journalOrPublisher="Taylor and Francis, Red Lion Court, Fleet, Street, Bombay" pageId="0" pageNumber="1" pagination="1 - 386" refId="B52" refString="Gude, GK, 1921. Land operculates (Cyclophoridae, Truncatellidae, Assiminidae, Helicinidae). In: Shipley, AS, Mashall, GAK, Eds., The Fauna of British India including Ceylon and Burma, Mollusca III. Taylor and Francis, Red Lion Court, Fleet, Street, Bombay: 1 - 386" title="Land operculates (Cyclophoridae, Truncatellidae, Assiminidae, Helicinidae)." volumeTitle="The Fauna of British India including Ceylon and Burma, Mollusca III." year="1921">Gude 1921</bibRefCitation>
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: 97.
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<bibRefCitation author="Egorov, R" journalOrPublisher="Proceedings of the Zoological Society of London, Series A" pageId="0" pageNumber="1" refId="B38" refString="Egorov, R, 2009. A review of the genera of the recent terrestrial pectinibranch molluscs (synopsis mainly based on published data). Littoriniformes: Hainesiidae, Aciculidae, Cyclophoridae, Craspedopomatidae. Treasure of Russian Shells (Supplement 3, Part 2): 1-57." title="A review of the genera of the recent terrestrial pectinibranch molluscs (synopsis mainly based on published data). Littoriniformes: Hainesiidae, Aciculidae, Cyclophoridae, Craspedopomatidae. Treasure of Russian Shells (Supplement 3, Part 2): 1 - 57." year="2009">Egorov 2009</bibRefCitation>
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: 26, 27.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="types species">
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<paragraph pageId="0" pageNumber="1">Types species.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName authorityName="Benson" authorityYear="1832" class="Gastropoda" family="Cyclophoridae" genus="Pterocyclos" kingdom="Animalia" lsidName="Pterocyclos rupestris" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="rupestris">
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<emphasis italics="true" pageId="0" pageNumber="1">Pterocyclos rupestris</emphasis>
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</taxonomicName>
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Benson, 1832 by monotypy.
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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 medium to large, discoidal, conical to nearly flattened. Shell colour uniformly yellowish to with brownish stripes; periostracum thin or thickened and hairy. Terminal part of last whorl usually attached to penultimate whorl or sometimes separated with short detached whorl. Peristome circular and double or sometime boundary hardly visible; lip thickened and expanded. Breathing device on upper junction of peristome; outer peristome slightly to broadly expanded; inner peristome inconspicuous or with a shallow incision. Umbilicus widely opened. Operculum calcareous, low cup-shaped to concave, inside covered with corneous layer, outside with calcareous anticlockwise multispiral with elevated lamella, and lateral straight.</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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The genus comprises a hundred nominal species (
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<bibRefCitation author="Moellendorff, OF von" journalOrPublisher="Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft" pageId="0" pageNumber="1" publicationUrl="https://www.molluscabase.org" refId="B101" refString="2022. . https://www.molluscabase.org" url="https://www.molluscabase.org" year="2022">MolluscaBase 2022</bibRefCitation>
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) and is widely distributed from South to Southeast Asia. The comprehensive revision of the genus has never been implemented other than in the classical work by
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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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, 1911). Seven species have been reported so far from the Malay Peninsula (see
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<bibRefCitation author="Sutcharit, C" journalOrPublisher="The Raffles Bulletin of Zoology" pageId="0" pageNumber="1" pagination="330 - 338" refId="B159" refString="Sutcharit, C, Tongkerd, P, Panha, S, 2014. The land snail genus Pterocyclos Benson, 1832 (Caenogastropoda: Cyclophoridae) from Thailand and Peninsular Malaysia, with description of two new species. The Raffles Bulletin of Zoology 62: 330 - 338" title="The land snail genus Pterocyclos Benson, 1832 (Caenogastropoda: Cyclophoridae) from Thailand and Peninsular Malaysia, with description of two new species." volume="62" year="2014">Sutcharit et al. 2014</bibRefCitation>
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). The genus
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<taxonomicName authorityName="Benson" authorityYear="1832" class="Gastropoda" family="Cyclophoridae" genus="Pterocyclos" kingdom="Animalia" lsidName="Pterocyclos" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="1">Pterocyclos</emphasis>
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</taxonomicName>
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can be distinguished from the
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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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by having an expanded outer lip with wing shape and forming an incomplete tube, inner lip with deep and wide incision, inside of operculum with corneous layer and outside of operculum calcified with wide to close lamellae. In contrast, the
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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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tend to have a detached whorl, breathing device of various types, outer lip not expanded, and thick calcareous cup-shaped operculum without corneous layer inside and with wide and elevated lamella outside (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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, Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Comparison of breathing device and operculum characteristics among the five genera that closely resemble Rhiostoma. The specimens and opercula represented herein are the type specimen or topotype of the respective type species of each genus; Pterocyclos: P. rupestris Benson, 1832 (lectotype UMZC I. 102070, no locality data), Spiraculum: S. hispidum Pearson, 1833 (specimen NHMUK 1906.4.4.72, from Khasi, Teria Ghat), Rhiostoma: R. haughtoni Benson, 1860 (syntype UMZC I. 103445, from Moulmein), Cyclotus: C. variegatus Pearson, 1833 (specimen NHMUK 1896.6.7.34 - 35, from Palawan), Opisthoporus: Cyclostoma taylorianum Pfeiffer, 1851 = junior synonym of Pterocyclos biciliatum Mousson, 1849 (specimen NHMUK 20210200 for shell, from Basan, Sarawak) and Pterocyclos tener Menke, 1856 (NHMUK ex. Cuming collection for operculum, from Cochin China), and Ptychopoma: Cyclophorus chinensis Moellendorff, 1875 (lectotype SMF 39415, from Lushan bei Kiukiang, China). Red arrows indicate the expansion of outer lip at upper junction of the peristome. Blue arrows indicate breathing tubes (apertural tube in Rhiostoma and sutural tubes in Spiraculum and Opisthoporus)." figureDoi="10.3897/zookeys.1142.90097.figure5" httpUri="https://binary.pensoft.net/fig/799863" pageId="0" pageNumber="1">5</figureCitation>
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).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |