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153 lines
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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.531.6097" ID-GBIF-Dataset="70702787-a6a8-4af7-9702-738f344a5cbe" ID-PMC="PMC4668911" ID-Pensoft-Pub="1313-2970-531-1" ID-PubMed="26692803" ID-ZBK="C845838EC9124BD8AB4E07980F91959E" ModsDocAuthor="" ModsDocDate="2015" ModsDocID="1313-2970-531-1" ModsDocOrigin="ZooKeys 531" ModsDocTitle="Additions to the knowledge of the land snails of Sabah (Malaysia, Borneo), including 48 new species" checkinTime="1451243834596" checkinUser="pensoft" docAuthor="Vermeulen, Jaap J., Liew, Thor-Seng & Schilthuizen, Menno" docDate="2015" docId="02A91B5B7C06D177F17192E67A26BAA1" docLanguage="en" docName="ZooKeys 531: 1-139" docOrigin="ZooKeys 531" docSource="http://dx.doi.org/10.3897/zookeys.531.6097" docTitle="Microcystina physotrochus Vermeulen, Liew & Schilthuizen, sp. n." docType="treatment" docUuid="5F34B811-5434-4A0E-B170-648669309E55" docUuidSource="ZooBank" docVersion="10" lastPageNumber="46" masterDocId="1527DF5A6645C540FFF1FF85AF4AE358" masterDocTitle="Additions to the knowledge of the land snails of Sabah (Malaysia, Borneo), including 48 new species" masterLastPageNumber="139" masterPageNumber="1" pageNumber="44" updateTime="1668160884494" 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>Additions to the knowledge of the land snails of Sabah (Malaysia, Borneo), including 48 new species</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Vermeulen, Jaap J.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Liew, Thor-Seng</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Schilthuizen, Menno</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2015</mods:date>
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<mods:detail type="volume">
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<mods:number>531</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>139</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.531.6097</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.531.6097</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-531-1</mods:identifier>
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<mods:identifier type="ZBK">C845838EC9124BD8AB4E07980F91959E</mods:identifier>
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<mods:identifier type="ZooBank">C845838EC9124BD8AB4E07980F91959E</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="144057577" LSID="urn:lsid:zoobank.org:act:5F34B811-5434-4A0E-B170-648669309E55" httpUri="http://treatment.plazi.org/id/02A91B5B7C06D177F17192E67A26BAA1" lastPageId="45" lastPageNumber="46" pageId="43" pageNumber="44">
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<subSubSection pageId="43" pageNumber="44" type="multiple">
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<paragraph pageId="43" pageNumber="44">Taxon classification Animalia Stylommatophora Ariophantidae</paragraph>
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</subSubSection>
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<subSubSection pageId="43" pageNumber="44" type="nomenclature">
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<paragraph pageId="43" pageNumber="44">
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<taxonomicName LSID="http://zoobank.org/5F34B811-5434-4A0E-B170-648669309E55" authority="Vermeulen, Liew & Schilthuizen" class="Gastropoda" family="Ariophantidae" genus="Microcystina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Microcystina physotrochus" order="Stylommatophora" pageId="43" pageNumber="44" phylum="Mollusca" rank="species" species="physotrochus">Microcystina physotrochus Vermeulen, Liew & Schilthuizen</taxonomicName>
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<taxonomicNameLabel pageId="43" pageNumber="44">sp. n.</taxonomicNameLabel>
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Figure 37
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</paragraph>
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</subSubSection>
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<subSubSection pageId="43" pageNumber="44" type="reference_group">
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<paragraph pageId="43" pageNumber="44">
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<taxonomicName class="Gastropoda" family="Ariophantidae" genus="Microcystina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Microcystina physotrochus" order="Stylommatophora" pageId="43" pageNumber="44" phylum="Mollusca" rank="species" species="physotrochus">Microcystina physotrochus</taxonomicName>
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nomen nudum,
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<bibRefCitation author="Clements, R" journalOrPublisher="Biological Conservation" pageId="43" pageNumber="44" pagination="2751 - 2764" title="Using biogeographical patterns of endemic land snails to improve conservation planning for limestone karsts." url="10.1016/j.biocon.2008.08.011" volume="141" year="2008">Clements et al. 2008</bibRefCitation>
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: 2761-2762;
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<bibRefCitation author="Schilthuizen, M" journalOrPublisher="Journal of the Geological Society, London" pageId="43" pageNumber="44" pagination="539 - 545" title="Species diversity patterns in insular land snail communities of Borneo." url="10.1144/jgs2012-014" volume="170" year="2013">Schilthuizen et al. 2013</bibRefCitation>
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: online supplementary data.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="43" pageNumber="44" type="holotype">
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<paragraph pageId="43" pageNumber="44">
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<materialsCitation collectingDate="2015-01-01" collectingDateMax="2015-12-31" collectingDateMin="2015-01-01" collectionCode="RMNH" country="Malaysia" httpUri="http://data.biodiversitydata.nl/naturalis/specimen/RMNH.5003937" location="Kinabatangan Valley" municipality="Sabah" specimenCode="RMNH.5003937" specimenCount="1" stateProvince="Sandakan Province" typeStatus="holotype">
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<typeStatus>Holotype</typeStatus>
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.
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<collectingCountry>Malaysia</collectingCountry>
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,
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<collectingMunicipality>Sabah</collectingMunicipality>
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,
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<collectingRegion>Sandakan Province</collectingRegion>
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,
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<location LSID="urn:lsid:plazi:treatment:02A91B5B7C06D177F17192E67A26BAA1:B83630A5DC9F6E8027B2708CCD707FEF" country="Malaysia" municipality="Sabah" name="Kinabatangan Valley" stateProvince="Sandakan Province">Kinabatangan Valley</location>
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,
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<location LSID="urn:lsid:plazi:treatment:02A91B5B7C06D177F17192E67A26BAA1:0F9B228F7F7C3A2D590F48F3E64033C4" country="Malaysia" municipality="Sabah" name="Batu Keruak 2, near Sukau" stateProvince="Sandakan Province">Batu Keruak 2, near Sukau</location>
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(
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<specimenCode>RMNH.5003937</specimenCode>
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).
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</materialsCitation>
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="44" lastPageNumber="45" pageId="43" pageNumber="44" type="materials_examined">
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<paragraph pageId="43" pageNumber="44">Examined material from Sabah.</paragraph>
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<paragraph lastPageId="44" lastPageNumber="45" pageId="43" pageNumber="44">
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Interior Province. Upper Padas valley, Long Pasia (leg. T.S. Liew & Meckson, BOR/MOL 4354). Gunung Trusmadi slopes: Gua Loloposon (leg. J.J. Vermeulen, V 13243); Gua Dawaras (leg. M. Schilthuizen, V 9873). Pun Batu c. 30 km West of Sepulut (leg. J.J. Vermeulen, V 2643). Sepulut valley, Batu Punggul (leg. J.J. Vermeulen, V 1969); Bukit Tinahas, East end of Batu Punggul limestone (leg. J.J. Vermeulen & M. Schilthuizen, V 7456); Gua Pungiton (leg. J.J. Vermeulen & M. Schilthuizen, V 8082). Sandakan Province. Kinabatangan valley, Batu Mawas (leg. T.S. Liew & M. Schilthuizen, BOR/MOL 1971; leg. M. Schilthuizen, BOR/MOL 1345); Batu Keruak 2 near Sukau (leg. J.J. Vermeulen & M. Schilthuizen, V 12726; leg. M. Salverda & H. van Oosten, BOR/MOL 1347); Hill on Resang river (leg. M. Schilthuizen, BOR/MOL 1346). Segama valley, North end of limestone ridge on East bank Tabin River (leg. J.J. Vermeulen & M. Schilthuizen, V 7500). Tawau Province. Batu Baturong, North slope (leg. J.J. Vermeulen, V 7587). Danum Valley Conservation Area (leg. UMS students, V 9882; leg. M. Schilthuizen, BOR/MOL 1107). Semporna area, Segarong Hills, Batu Tengar, 25 km E.S.E. of
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<pageBreakToken pageId="44" pageNumber="45" start="start">Kunak</pageBreakToken>
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(leg. J.J. Vermeulen & H. Duistermaat, V 2644). Tawau Hills N.P., waterfalls near Headquarters area (leg. J.J. Vermeulen, V 13203). West Coast Province. Kinabalu N.P., plot near Mesilau trail (leg. T.S. Liew et al.; locality 2006.S043, V 14342); Poring (leg. M. Schilthuizen & P. Koomen, BOR/MOL 1114); Sayap-Nunuhon trail between 960 and 1152 m (leg. T.S. Liew, Dominik, J. Lapidin & Jasilin, BOR/MOL 4070, BOR/MOL 4071); Monggis-Tambuyukon trail between 880 and 1144 m (leg. T.S. Liew, BOR/MOL 4072, BOR/MOL 4074, BOR/MOL 4077); Kiau-Spurs route between 2248 and 2624 m (leg. T.S. Liew, J. Lapidin & Safrie, BOR/MOL 4079, BOR/MOL 4085, BOR/MOL 4082); Mesilau trail between 2560 and 2680 m (leg. T.S. Liew, BOR/MOL 4083, BOR/MOL 4084); Serinsim-Numbuyokon trail at 1001 m (leg. T.S. Liew, BOR/MOL 4078); Summit trail between 1616 and 2526 m (leg. T.S. Liew, BOR/MOL 4075, BOR/MOL 4076, BOR/MOL 4080; leg. T.S. Liew & David, BOR/MOL 4081). Crocker Range N.P., Ulu Kimanis (leg. M. Schilthuizen, BOR/MOL 1343); Raflesia Park (leg. M. Schilthuizen, BOR/MOL 1119). Mantanani Group, Pulau Lungisan (leg. M. Schilthuizen, V 9862).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="44" pageNumber="45" type="description">
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<paragraph pageId="44" pageNumber="45">Description.</paragraph>
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<paragraph pageId="44" pageNumber="45">Shell very small, thin, slightly translucent, brown; inflated-lenticular to depressed-ovoid; spire (moderately) elevated (more distinctly elevated in some adults) conical with convex sides or depressed-ovoid, with a rounded apex. Surface glossy. Whorls moderately convex. Protoconch: with or without very fine (only just visible at 40 times magnification), well-spaced, somewhat interrupted, shallow, rather sharply outlined spiral grooves; also with patches of fine, densely placed radial riblets, particularly below the suture. Teleoconch: fine, well-spaced, shallow spiral grooves on the upper and lower surface; sometimes only present on part of the shell, or (almost) entirely absent. Radial sculpture teleoconch: inconspicuous growth lines, next to these rather distinct, well-spaced to densely placed shallow grooves, often at irregular intervals. Umbilicus open, narrow; columellar side of the peristome somewhat thickened but not covering the umbilicus. Dimensions: Height up to 2.3 mm; width up to 2.9 mm; diameters of the first three whorls 0.5-0.7 mm, 0.9-1.2 mm, 1.3-1.8 mm respectively; number of whorls up to 4 7/8; height aperture up to 1.5 mm; width aperture up to 1.6 mm.</paragraph>
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</subSubSection>
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<subSubSection pageId="44" pageNumber="45" type="habitat in sabah and distribution">
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<paragraph pageId="44" pageNumber="45">Habitat in Sabah and distribution.</paragraph>
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<paragraph pageId="44" pageNumber="45">Rainforest, seasonally dry forest, coastal forest, secondary woodland; on limestone and sandstone bedrock, up to 2600 m alt. Sabah: rather common. Usually found in small numbers. Also in Sarawak. Endemic to Borneo.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="45" lastPageNumber="46" pageId="44" pageNumber="45" type="cross diagnosis">
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<paragraph pageId="44" pageNumber="45">Cross diagnosis.</paragraph>
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<paragraph pageId="44" pageNumber="45">
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Generally identified among Sabah
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<taxonomicName class="Gastropoda" family="Ariophantidae" genus="Microcystina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Microcystina" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="genus">Microcystina</taxonomicName>
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by the somewhat inflated shell. Relatively flat specimens differ from
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<taxonomicName class="Gastropoda" family="Ariophantidae" genus="Microcystina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Microcystina appendiculata" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="appendiculata">Microcystina appendiculata</taxonomicName>
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because they lack the spur on the columellar side of the peristome.
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</paragraph>
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<paragraph lastPageId="45" lastPageNumber="46" pageId="44" pageNumber="45">
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Elsewhere, the following species have a similar inflated-lenticular or depressed-ovoid shell of comparable size.
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<taxonomicName class="Gastropoda" family="Helicarionidae" genus="Sitala" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Sitala infantilis" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="infantilis">Sitala infantilis</taxonomicName>
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E.A. Smith, 1895, from Palawan, has a corneous shell with a comparatively larger aperture, and a smooth surface,
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<taxonomicName class="Gastropoda" family="Ariophantidae" genus="Microcystina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Microcystina seclusa" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="seclusa">Microcystina seclusa</taxonomicName>
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Godwin Austen, 1891, from Sarawak, has the last whorl more narrowly rounded around the periphery.
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<taxonomicName class="Gastropoda" family="Euconulidae" genus="Lamprocystis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Lamprocystis ambonica" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="ambonica">Lamprocystis ambonica</taxonomicName>
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Boettger, 1891, from the Moluccas, has a larger aperture.
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<taxonomicName class="Gastropoda" family="Helicarionidae" genus="Sitala" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Sitala amussitata" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="amussitata">Sitala amussitata</taxonomicName>
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E.A. Smith, 1895, from Sarawak, and
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<taxonomicName class="Gastropoda" family="Euconulidae" genus="Lamprocystis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Lamprocystis subglobosa" order="Stylommatophora" pageId="45" pageNumber="46" phylum="Mollusca" rank="species" species="subglobosa">
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<pageBreakToken pageId="45" pageNumber="46" start="start">Lamprocystis</pageBreakToken>
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subglobosa
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</taxonomicName>
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Von Moellendorff, 1897 (see
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<bibRefCitation author="Van Benthem Jutting, WSS" journalOrPublisher="Treubia" pageId="45" pageNumber="46" pagination="381 - 505" title="Systematic studies on the non-marine Mollusca of the Indo-Australian Archipelago. II. Critical revision of the Javanese pulmonate landshells of the families Helicarionidae, Pleurodontidae, Fruticicolidae and Streptaxidae." volume="20" year="1950">Van Benthem Jutting 1950</bibRefCitation>
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: 452), from Java, have the whorls are slightly laterally compressed, resulting in a somewhat shouldered last whorl.
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</paragraph>
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<paragraph pageId="45" pageNumber="46">
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<taxonomicName class="Gastropoda" family="Charopidae" genus="Philalanka" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Philalanka anomphala" order="Stylommatophora" pageId="45" pageNumber="46" phylum="Mollusca" rank="species" species="anomphala">Philalanka anomphala</taxonomicName>
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(see
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<taxonomicName family="Endodontidae" lsidName="" pageId="45" pageNumber="46" rank="family">Endodontidae</taxonomicName>
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) is characterized by the thinner shell, with much coarser, raised growth lines.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="45" pageNumber="46" type="remarks">
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<paragraph pageId="45" pageNumber="46">Remarks.</paragraph>
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<paragraph pageId="45" pageNumber="46">
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Juveniles and some adults have the basal edge of the peristome more angular than in the illustrated specimen. A small callus (not protruding beyond the rim of the peristome, as in
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<taxonomicName class="Gastropoda" family="Ariophantidae" genus="Microcystina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Microcystina appendiculata" order="Stylommatophora" pageId="45" pageNumber="46" phylum="Mollusca" rank="species" species="appendiculata">Microcystina appendiculata</taxonomicName>
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) may be present on the columellar peristome in such shells. Shells from Mount Kinabalu tend to be relatively small, with a distinctly elevated spire.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="45" pageNumber="46" type="etymology">
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<paragraph pageId="45" pageNumber="46">Etymology.</paragraph>
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<paragraph pageId="45" pageNumber="46">The name refers to the inflated shell shape [phusa (Gr.) = bellows; trokhos (Gr.) = wheel, a word often used for the gastropod spire].</paragraph>
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</subSubSection>
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</treatment>
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</document>
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