<documentID-DOI="http://dx.doi.org/10.3897/zse.99.102586"ID-GBIF-Dataset="b028f1ea-32d8-4aa6-990c-474b0d2cc3ff"ID-Pensoft-Pub="1860-0743-2-285"ID-Pensoft-UUID="EADD100D16075520AFD7FBF99E77DAD6"ID-ZooBank="6856760F3F9E4B278AC2B59D25845F67"ModsDocID="1860-0743-99-2-285"checkinTime="1683904577099"checkinUser="pensoft"docAuthor="Zhang, Le-Jia, Du, Li-Na & von Rintelen, Thomas"docDate="2023"docId="BA528F39739C55BBA13C8BA168E48C31"docLanguage="en"docName="ZoosystEvol 99(2): 285-297"docOrigin="Zoosystematics and Evolution 99 (2)"docPubDate="2023-05-11"docSource="http://dx.doi.org/10.3897/zse.99.102586"docTitle="Dalipaludina occidentalis Zhang & Du & von Rintelen 2023, comb. nov."docType="treatment"docVersion="4"id="EADD100D16075520AFD7FBF99E77DAD6"lastPageNumber="285"masterDocId="EADD100D16075520AFD7FBF99E77DAD6"masterDocTitle="A new genus of river snails, Dalipaludina (Gastropoda, Viviparidae), endemic to the Yunnan Plateau of SW China"masterLastPageNumber="297"masterPageNumber="285"pageNumber="285"updateTime="1732710123990"updateUser="ExternalLinkService">
<mods:titleid="265E8D4CFE208ACA34E01FC6D2833693">A new genus of river snails, Dalipaludina (Gastropoda, Viviparidae), endemic to the Yunnan Plateau of SW China</mods:title>
<mods:affiliationid="D4D0195CED5BECE11CDB952A81B52E0D">Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin, Guangxi 541004, China</mods:affiliation>
<taxonomicNameid="76DB9C799E988F798E601FC373F24C4B"LSID="BA528F39-739C-55BB-A13C-8BA168E48C31"authority="(Annandale, 1924)"authorityName="Zhang & Du & von Rintelen"authorityYear="2023"baseAuthorityName="Annandale"baseAuthorityYear="1924"class="Gastropoda"family="Viviparidae"genus="Dalipaludina"higherTaxonomySource="CoL"kingdom="Animalia"lsidName="Dalipaludina occidentalis"order="Architaenioglossa"pageId="0"pageNumber="285"phylum="Mollusca"rank="species"species="occidentalis"status="comb. nov.">Dalipaludina occidentalis (Annandale, 1924)</taxonomicName>
<taxonomicNameid="B202A11152F9B99B31AA65E4CA9EE2D5"authorityName="Zhang & Du & von Rintelen"authorityYear="2023"class="Gastropoda"family="Viviparidae"form="occidentalis"genus="Lecythoconcha"higherTaxonomySource="CoL"kingdom="Animalia"lsidName="Lecythoconcha malleata subsp. f."order="Architaenioglossa"pageId="0"pageNumber="285"phylum="Mollusca"rank="form"species="malleata"status="comb. nov."subSpecies="f.">Lecythoconcha malleata f. occidentalis</taxonomicName>
Annandale, 1924: 415 ("Ho-ching and Shihku", Heqing County and Shigu town, Lijiang City, Yunnan, China).
<taxonomicNameid="D3C61D40E2404C9CE4911E42FA1FF22C"authorityName="Zhang & Du & von Rintelen"authorityYear="2023"class="Gastropoda"family="Viviparidae"genus="Viviparus"higherTaxonomySource="CoL"kingdom="Animalia"lsidName="Viviparus occidentalis"order="Architaenioglossa"pageId="0"pageNumber="285"phylum="Mollusca"rank="species"species="occidentalis"status="comb. nov.">Viviparus occidentalis</taxonomicName>
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<bibRefCitationid="901951F26F2EDB7ED745E816C164BB1E"author="Yen, TC"journalOrPublisher="The Journal of Molluscan Studies"pageId="0"pageNumber="285"pagination="170 - 289"refId="B20"refString="Yen, TC, 1942. A review of Chinese gastropods in the British Museum. The Journal of Molluscan Studies 24 (5-6): 170 - 289"title="A review of Chinese gastropods in the British Museum."volume="24"year="1942">Yen 1942</bibRefCitation>
<figureCitationid="5C9E5AE96BFE265A5745B38DE5BED62E"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Shell and operculum of Dalipaludina occidentalis. A-C. Specimen collected from Lake Jianhu, ZMB. Moll. 122712; D, E. Varieties collected from Lake Jianhu, ZMB. Moll. 122713; F. Sub-adult collected from Lake Jianhu, ZMB. Moll. 122713; G. Original figure of the type specimen in Annandale, 1922; H. Exterior (left) and interior (right) surface of operculum. Scale bar: 1 cm, B-F with the same scale bar of A."figureDoi="10.3897/zse.99.102586.figure5"httpUri="https://binary.pensoft.net/fig/849018"pageId="0"pageNumber="285">5A-G</figureCitation>
) large, broadly conical or sub globose, thin, olive to dark brown in colour; up to six whorls at adulthood, including one relatively smooth protoconch whorl, apex acute; teleoconch whorls inflated, occasionally shouldered, with one strong keel at suture, above suture with many weak spiral threads, sometimes with additional two to three stronger cords, base of shell with many thin weak spiral threads, weak spiral threads and cords with short periostracum setae; aperture ovate, slightly less than half of shell in height, lip thin and simple, umbilicus narrow, sometimes bordered by akeel.
<taxonomicNameid="B5C1AFBA24A5C4359A97A8A689F11D68"authorityName="Zhang & Du & von Rintelen"authorityYear="2023"baseAuthorityName="Annandale"baseAuthorityYear="1924"class="Gastropoda"family="Viviparidae"genus="Dalipaludina"higherTaxonomySource="CoL"kingdom="Animalia"lsidName="Dalipaludina occidentalis"order="Architaenioglossa"pageId="0"pageNumber="285"phylum="Mollusca"rank="species"species="occidentalis">
<figureCitationid="07B832E284D8D9816FE386880466EF31"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Shell and operculum of Dalipaludina occidentalis. A-C. Specimen collected from Lake Jianhu, ZMB. Moll. 122712; D, E. Varieties collected from Lake Jianhu, ZMB. Moll. 122713; F. Sub-adult collected from Lake Jianhu, ZMB. Moll. 122713; G. Original figure of the type specimen in Annandale, 1922; H. Exterior (left) and interior (right) surface of operculum. Scale bar: 1 cm, B-F with the same scale bar of A."figureDoi="10.3897/zse.99.102586.figure5"httpUri="https://binary.pensoft.net/fig/849018"pageId="0"pageNumber="285">5H</figureCitation>
) corneous, ovate, rather thin, yellow, with red nuclear region, exterior surface of operculum rather smooth, inner opercular region relatively small, nuclear region smooth.
<figureCitationid="2902897926FCC24AF1840331A1BD9EE1"captionStart="Figure 7"captionStartId="F7"captionText="Figure 7. SEM photo of the radula and the protoconch of Dalipaludina species. A, B. Radula of Dalipaludina delavayana, A- ZMB. Moll. 181719, B- ZMB. Moll. 122707; C, D. Radula of Dalipaludina oxytropoides, ZMB. Moll. 250844; E, F. Radula of Dalipaludina occidentalis, ZMB. Moll. 122713. Abbreviations: ct-central teeth; lt-lateral teeth; imt-inner marginal teeth; omt-outer marginal teeth. Scale bars: 100 µm."figureDoi="10.3897/zse.99.102586.figure7"httpUri="https://binary.pensoft.net/fig/849020"pageId="0"pageNumber="285">7E, F</figureCitation>
) central tooth with one broad central denticle and four small sharp cusps on either side; lateral tooth with one broad central denticle and four small sharp cusps on either side; inner marginal tooth with one broad central denticle and four small sharp cusps on either side; outer marginal tooth with 9 to 10 small sharp cusps.
<bibRefCitationid="DB3B564AF9A584C49577340D8A885B11"author="Annandale, TN"journalOrPublisher="Journal and Proceedings of the Asiatic Society of Bengal, New Series"pageId="0"pageNumber="285"pagination="399 - 422"refId="B1"refString="Annandale, TN, 1924. Zoological results of the Percy Sladen Trust Expedition to Yunnan under the leadership of Professor J.W. Gregory, F.R.S., 1922. Aquatic gastropod molluscs. Journal and Proceedings of the Asiatic Society of Bengal, New Series 19 (9): 399 - 422"title="Zoological results of the Percy Sladen Trust Expedition to Yunnan under the leadership of Professor J. W. Gregory, F. R. S., 1922. Aquatic gastropod molluscs."volume="19"year="1924">Annandale (1924)</bibRefCitation>
presented a photo of the type specimen. The shell morphology and COI phylogeny of the specimens collected from an unnamed pond in Lijiang City, which is very close to the type locality, confirm that this species should be assigned to
<paragraphid="399F2F92D04DE66BCA0148AE8EEC2D17"pageId="0"pageNumber="285">Habitat and distribution.</paragraph>
<paragraphid="0EC04D3D6382B45D92B65C07D74FE99D"pageId="0"pageNumber="285">Shallow ponds with muddy bottoms and abundant aquatic plants in Lijiang City, Yunnan, China; Shallow to medium-depth water area with muddy bottoms in Lake Jianhu, Jianchuan County, Yunnan, China.</paragraph>
