2014/11/18 by Hong-fa Lu, Li-Na Du, Zhiqiang Li +2 · 5 citations
Agricultural and Biological Sciences · Earth and Planetary Sciences · Environmental Science · #Aquatic Invertebrate Ecology and Behavior #Marine Biology and Ecology Research #Mollusks and Parasites Studies
paper · doi:10.13918/j.issn.2095-8137.2014.6.510
openalex publication_date 2014/11/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
Viviparidae are widely distributed around the globe, but there are considerable gaps in the taxonomic record. To date, 18 species of the viviparid genus Cipangopaludina have been recorded in China, but there is substantial disagreement on the validity of this taxonomy. In this study, we described the shell and internal traits of these species to better discuss the validity of related species. We found that C. ampulliformis is synonym of C. lecythis, and C. wingatei is synonym of C. chinensis,while C. ampullacea and C. fluminalis are subspecies of C. lecythis and C. chinensis, respectively. C. dianchiensis should be paled in the genus Margarya, while C. menglaensis and C. yunnanensisbelong to genus Mekongia. Totally, this leaves 11 species and 2 subspecies recorded in China. Based on whether these specimens' spiral whorl depth was longer than aperture depth, these species or subspecies can be further divided into two groups, viz. chinensis group and cathayensis group, which can be determined from one another via the ratio of spiral depth and aperture depth, vas deferens and number of secondary branches of vas deferens. Additionally, Principal Component Analysis indicated that body whorl depth, shell width, aperture width and aperture length were main variables during species of Cipangopaludina. A key to all valid Chinese Cipangopaludina specieswere given.