188 lines
18 KiB
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188 lines
18 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zse.97.59143" ID-GBIF-Dataset="83d5b180-4e0b-44d1-ad83-67ad55ee0355" ID-GBIF-Taxon="182236445" ID-Pensoft-Pub="1860-0743-1-1" ID-Pensoft-UUID="BD006A3AD2C6516AB596CDA05E0F375D" ID-ZooBank="1D5553BA24894F2C9527B7E46B9B432B" ModsDocID="1860-0743-97-1-1" checkinTime="1621423297205" checkinUser="pensoft" docAuthor="Jirapatrasilp, Parin, Pall-Gergely, Barna, Sutcharit, Chirasak & Tongkerd, Piyoros" docDate="2021" docId="90E261C7B5A85C02872F8A21A5CAD9EA" docLanguage="en" docName="ZoosystEvol 97(1): 1-20" docOrigin="Zoosystematics and Evolution 97 (1)" docPubDate="2021-01-05" docSource="http://dx.doi.org/10.3897/zse.97.59143" docTitle="Dicharax notus" docType="treatment" docVersion="3" id="BD006A3AD2C6516AB596CDA05E0F375D" lastPageNumber="1" masterDocId="BD006A3AD2C6516AB596CDA05E0F375D" masterDocTitle="The operculate micro land snail genus Dicharax Kobelt & Moellendorff, 1900 (Caenogastropoda, Alycaeidae) in Thailand, with description of new species" masterLastPageNumber="20" masterPageNumber="1" pageId="0" pageNumber="1" updateTime="1632012559486" updateUser="ExternalLinkService">
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<mods:titleInfo>
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<mods:title>The operculate micro land snail genus Dicharax Kobelt & Moellendorff, 1900 (Caenogastropoda, Alycaeidae) in Thailand, with description 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>Jirapatrasilp, Parin</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-5591-6724</mods:nameIdentifier>
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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>Pall-Gergely, Barna</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-6167-7221</mods:nameIdentifier>
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<mods:affiliation>Plant Protection Institute, Centre for Agricultural Research, Herman Otto ut 15, H- 1022 Budapest, Hungary</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>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: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>Tongkerd, Piyoros</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-9221-9293</mods:nameIdentifier>
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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">piyorose@hotmail.com</mods:nameIdentifier>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:title>Zoosystematics and Evolution</mods:title>
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<mods:part>
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<mods:date>2021</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2021-01-05</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>97</mods:number>
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<mods:detail type="issue">
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<mods:number>1</mods:number>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>20</mods:end>
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<mods:url>http://dx.doi.org/10.3897/zse.97.59143</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/zse.97.59143</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1860-0743-1-1</mods:identifier>
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<mods:identifier type="ZooBank">1D5553BA24894F2C9527B7E46B9B432B</mods:identifier>
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<treatment ID-GBIF-Taxon="182236445" LSID="urn:lsid:plazi:treatment:90E261C7B5A85C02872F8A21A5CAD9EA" httpUri="http://treatment.plazi.org/id/90E261C7B5A85C02872F8A21A5CAD9EA" 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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<taxonomicName LSID="90E261C7-B5A8-5C02-872F-8A21A5CAD9EA" authority="(Godwin-Austen, 1914)" baseAuthorityName="Godwin-Austen" baseAuthorityYear="1914" class="Gastropoda" family="Cyclophoridae" genus="Dicharax" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Dicharax notus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="notus">Dicharax notus (Godwin-Austen, 1914)</taxonomicName>
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A, B. Dicharax cucullatus, specimens CUMZ 7422 from Siribhum Waterfall, Doi Inthanon, Chiang Mai Province; A. With operculum; C, D. Dicharax notus C. Syntype NHMUK 1903.7.1.3065; D. Specimen CUMZ 7425 from Tham Luang Sa Koen, Nan Province. Close-up images of the aperture not to scale. Photo: NHM (C.)." figureDoi="10.3897/zse.97.59143.figure4" httpUri="https://binary.pensoft.net/fig/494368" pageId="0" pageNumber="1">Figs 4C, D</figureCitation>
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Living Dicharax specimens. A. Dicharax cucullatus, specimen CUMZ 7432 from Doi Inthanon, Chiang Mai Province; B. Dicharax notus, specimen CUMZ 7425 from Tham Luang Sa Koen, Nan Province. Both photographed in the laboratory. Not to scale. Photo: A. Pholyotha." figureDoi="10.3897/zse.97.59143.figure5" httpUri="https://binary.pensoft.net/fig/494369" pageId="0" pageNumber="1">, 5B</figureCitation>
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Synoptic view of the eight Dicharax taxa in Thailand. A. Dicharax omissus, specimen CUMZ 7426 (gold plated); B. Dicharax pratatensis, specimen CUMZ 7427; C. Dicharax panhai sp. nov., paratype CUMZ 7429 / 2; D. Dicharax pongrati sp. nov., paratype CUMZ 7430 / 2; E. Dicharax notus, specimen CUMZ 7425; F. Dicharax burchi sp. nov., paratype CUMZ 7428 / 2; G. Dicharax borealis sp. nov., paratype CUMZ 5072 / 2; H. Dicharax cucullatus, specimen CUMZ 7421." figureDoi="10.3897/zse.97.59143.figure6" httpUri="https://binary.pensoft.net/fig/494370" pageId="0" pageNumber="1">, 6E</figureCitation>
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<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Close-up images of the aperture showing the operculum in situ. A, B. Dicharax notus, specimens CUMZ 7425; A. Without lamella; B. With elevated lamella; C. Dicharax pongrati sp. nov., paratype CUMZ 7430 / 2, without lamella, probably lost due to corrosion." figureDoi="10.3897/zse.97.59143.figure7" httpUri="https://binary.pensoft.net/fig/494371" pageId="0" pageNumber="1">, 7A, B</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="Godwin-Austen" authorityYear="1914" class="Gastropoda" family="Cyclophoridae" genus="Alycaeus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Alycaeus notus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="notus">Alycaeus notus</taxonomicName>
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Godwin-Austen, 1914: 411, pl. 155, fig. 12. Type locality: Fort Stedman, Burma [Maing Thauk or Mine Thauk located in the east side of Inle Lake south of Nyaungshwe, Nyaungshwe Township, Taunggyi District, Shan State, Myanmar].
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName authorityName="Godwin-Austen" authorityYear="1914" class="Gastropoda" family="Cyclophoridae" genus="Alycaeus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Alycaeus (Dicharax) notus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="notus" subGenus="Dicharax">Alycaeus (Dicharax) notus</taxonomicName>
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-
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<bibRefCitation author="Gude, GK" journalOrPublisher="Taylor and Francis, London" pageId="0" pageNumber="1" refId="B20" refString="Gude, GK, 1921. The Fauna of British India including Ceylon and Burma. Mollusca - III. Land Operculates. Taylor and Francis, London" title="The Fauna of British India including Ceylon and Burma. Mollusca - III. Land Operculates." year="1921">Gude 1921</bibRefCitation>
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: 262.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName baseAuthorityName="Godwin-Austen" baseAuthorityYear="1914" class="Gastropoda" family="Cyclophoridae" genus="Dicharax" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Dicharax notus" order="Architaenioglossa" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="notus">Dicharax notus</taxonomicName>
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-
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<bibRefCitation DOI="https://doi.org/10.3897/zookeys.981.53583" author="Pall-Gergely, B" journalOrPublisher="ZooKeys" pageId="0" pageNumber="1" pagination="1 - 220" refId="B47" refString="Pall-Gergely, B, Sajan, S, Tripathy, B, Meng, K, Takahiro, A, Ablett, J, 2020b. Genus-level revision of the Alycaeidae (Gastropoda: Cyclophoroidea), with an annotated species catalogue. ZooKeys 981: 1 - 220, DOI: https://doi.org/10.3897/zookeys.981.53583" title="Genus-level revision of the Alycaeidae (Gastropoda: Cyclophoroidea), with an annotated species catalogue." url="https://doi.org/10.3897/zookeys.981.53583" volume="981" year="2020 b">
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<normalizedToken originalValue="Páll-Gergely">Pall-Gergely</normalizedToken>
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et al. 2020b
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</bibRefCitation>
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: 69.
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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 examined.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Syntypes</emphasis>
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NHMUK 1903.7.1.3065 from Fort Stedman (15 shells; Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A, B. Dicharax cucullatus, specimens CUMZ 7422 from Siribhum Waterfall, Doi Inthanon, Chiang Mai Province; A. With operculum; C, D. Dicharax notus C. Syntype NHMUK 1903.7.1.3065; D. Specimen CUMZ 7425 from Tham Luang Sa Koen, Nan Province. Close-up images of the aperture not to scale. Photo: NHM (C.)." figureDoi="10.3897/zse.97.59143.figure4" httpUri="https://binary.pensoft.net/fig/494368" pageId="0" pageNumber="1">4C</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="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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<materialsCitation collectingDate="2017-01-19" collectorName="C. Sutcharit, Sutcharit, A" country="Thailand" latitude="19.366695" location="Tham Luang Sa Koen" longLatPrecision="1" longitude="100.54122" specimenCount="13" stateProvince="Nan Province">
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CUMZ 7425 from
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<location LSID="urn:lsid:plazi:treatment:90E261C7B5A85C02872F8A21A5CAD9EA:AE539133350D7C4A17B0386C26ED9F69" country="Thailand" latitude="19.366695" longLatPrecision="1" longitude="100.54122" name="Tham Luang Sa Koen" stateProvince="Nan Province">Tham Luang Sa Koen</location>
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,
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<collectingRegion country="Thailand" name="Nan">Nan Province</collectingRegion>
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,
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<collectingCountry name="Thailand">Thailand</collectingCountry>
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,
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<geoCoordinate degrees="19" direction="north" minutes="22" orientation="latitude" precision="1" seconds="00.1" value="19.366695">19°22'00.1"N</geoCoordinate>
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,
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<geoCoordinate degrees="100" direction="east" minutes="32" orientation="longitude" precision="1" seconds="28.4" value="100.54122">100°32'28.4"E</geoCoordinate>
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,
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<collectingDate value="2017-01-19">19 Jan. 2017</collectingDate>
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, coll.
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<collectorName>C.
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<collectorName>Sutcharit, A</collectorName>
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</collectorName>
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. Pholyotha (174 shells and
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<specimenCount type="generic">13 specimens</specimenCount>
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in ethanol; Figs
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A, B. Dicharax cucullatus, specimens CUMZ 7422 from Siribhum Waterfall, Doi Inthanon, Chiang Mai Province; A. With operculum; C, D. Dicharax notus C. Syntype NHMUK 1903.7.1.3065; D. Specimen CUMZ 7425 from Tham Luang Sa Koen, Nan Province. Close-up images of the aperture not to scale. Photo: NHM (C.)." figureDoi="10.3897/zse.97.59143.figure4" httpUri="https://binary.pensoft.net/fig/494368" pageId="0" pageNumber="1">4D</figureCitation>
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,
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Living Dicharax specimens. A. Dicharax cucullatus, specimen CUMZ 7432 from Doi Inthanon, Chiang Mai Province; B. Dicharax notus, specimen CUMZ 7425 from Tham Luang Sa Koen, Nan Province. Both photographed in the laboratory. Not to scale. Photo: A. Pholyotha." figureDoi="10.3897/zse.97.59143.figure5" httpUri="https://binary.pensoft.net/fig/494369" pageId="0" pageNumber="1">5B</figureCitation>
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,
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Synoptic view of the eight Dicharax taxa in Thailand. A. Dicharax omissus, specimen CUMZ 7426 (gold plated); B. Dicharax pratatensis, specimen CUMZ 7427; C. Dicharax panhai sp. nov., paratype CUMZ 7429 / 2; D. Dicharax pongrati sp. nov., paratype CUMZ 7430 / 2; E. Dicharax notus, specimen CUMZ 7425; F. Dicharax burchi sp. nov., paratype CUMZ 7428 / 2; G. Dicharax borealis sp. nov., paratype CUMZ 5072 / 2; H. Dicharax cucullatus, specimen CUMZ 7421." figureDoi="10.3897/zse.97.59143.figure6" httpUri="https://binary.pensoft.net/fig/494370" pageId="0" pageNumber="1">6E</figureCitation>
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,
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<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Close-up images of the aperture showing the operculum in situ. A, B. Dicharax notus, specimens CUMZ 7425; A. Without lamella; B. With elevated lamella; C. Dicharax pongrati sp. nov., paratype CUMZ 7430 / 2, without lamella, probably lost due to corrosion." figureDoi="10.3897/zse.97.59143.figure7" httpUri="https://binary.pensoft.net/fig/494371" pageId="0" pageNumber="1">7A, B</figureCitation>
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)
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</materialsCitation>
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.
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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 (SH up to 2.2 mm, SW up to 3.6 mm), depressed-conical. Spire ca. 1/5 of shell height. R1 with regular ribs; R2 as long as or shorter than R3; R2 with 48-50 ribs. R3 with low blunt central swelling, more elevated in newly examined population. Aperture round. Inner peristome without indentation, with parieto-columellar angle in newly examined population. Outer peristome expanded, reflected. Umbilicus round. Operculum multispiral either with or without elevated lamella.</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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Shan State, Myanmar (
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<bibRefCitation author="Gude, GK" journalOrPublisher="Taylor and Francis, London" pageId="0" pageNumber="1" refId="B20" refString="Gude, GK, 1921. The Fauna of British India including Ceylon and Burma. Mollusca - III. Land Operculates. Taylor and Francis, London" title="The Fauna of British India including Ceylon and Burma. Mollusca - III. Land Operculates." year="1921">Gude 1921</bibRefCitation>
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), and Nan Province, Thailand.
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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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Similar to
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<taxonomicName genus="D." lsidName="D. cristatus" pageId="0" pageNumber="1" rank="species" species="cristatus">
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<emphasis italics="true" pageId="0" pageNumber="1">D. cristatus</emphasis>
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</taxonomicName>
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(
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<normalizedToken originalValue="Möllendorff">Moellendorff</normalizedToken>
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, 1886) from China and Vietnam as well as
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<taxonomicName genus="D." lsidName="D. depressus" pageId="0" pageNumber="1" rank="species" species="depressus">
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<emphasis italics="true" pageId="0" pageNumber="1">D. depressus</emphasis>
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</taxonomicName>
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(Bavay & Dautzenberg, 1912) and the rounded peristome morph of
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<taxonomicName genus="D." lsidName="D. fimbriatus" pageId="0" pageNumber="1" rank="species" species="fimbriatus">
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<emphasis italics="true" pageId="0" pageNumber="1">D. fimbriatus</emphasis>
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</taxonomicName>
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(the latter two known from Pac Kha, northern Vietnam) in shell size and shape, length of R2 and R3, and position of the swelling in R3 (
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<bibRefCitation DOI="https://doi.org/10.11646/zootaxa.4331.1.1" author="Pall-Gergely, B" journalOrPublisher="Zootaxa" pageId="0" pageNumber="1" pagination="1 - 124" refId="B45" refString="Pall-Gergely, B, Hunyadi, A, Do, DS, Naggs, F, Asami, T, 2017. Revision of the Alycaeidae of China, Laos and Vietnam (Gastropoda: Cyclophoroidea) I: The genera Dicharax and Metalycaeus. Zootaxa 4331: 1 - 124, DOI: https://doi.org/10.11646/zootaxa.4331.1.1" title="Revision of the Alycaeidae of China, Laos and Vietnam (Gastropoda: Cyclophoroidea) I: The genera Dicharax and Metalycaeus." url="https://doi.org/10.11646/zootaxa.4331.1.1" volume="4331" year="2017">
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<normalizedToken originalValue="Páll-Gergely">Pall-Gergely</normalizedToken>
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et al. 2017
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</bibRefCitation>
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). The specimens from Nan Province, Thailand (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A, B. Dicharax cucullatus, specimens CUMZ 7422 from Siribhum Waterfall, Doi Inthanon, Chiang Mai Province; A. With operculum; C, D. Dicharax notus C. Syntype NHMUK 1903.7.1.3065; D. Specimen CUMZ 7425 from Tham Luang Sa Koen, Nan Province. Close-up images of the aperture not to scale. Photo: NHM (C.)." figureDoi="10.3897/zse.97.59143.figure4" httpUri="https://binary.pensoft.net/fig/494368" pageId="0" pageNumber="1">4D</figureCitation>
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) differ from the type specimens in having a longer R3, a more shouldered R3 swelling, a stronger descending aperture, and a parieto-columellar angle. Despite those differences, we preliminarily identified the specimens from Nan Province as
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<taxonomicName genus="D." lsidName="D. notus" pageId="0" pageNumber="1" rank="species" species="notus">
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<emphasis italics="true" pageId="0" pageNumber="1">D. notus</emphasis>
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</taxonomicName>
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. Refer to Discussion regarding the color of living specimen and variation in operculum morphology.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |