Traits name details
original description
Ping, C. (1929). Fossil Terrestrial Gastropods from North China. <em>Palaeontologia Sinica, Series B.</em> 6(5): 1-30. page(s): 19-20, pl. 2, fig. 11a, b, textfig. 11a, b [details] Available for editors 
additional source
Ping, C. (1931). Tertiary and Quaternary Non-Marine Gastropods of North China. <em>Palaeontologia Sinica, Series B.</em> 6(6): 1-40. page(s): 27-28, pl. 2, fig. 14a, b, textfig. 14a, b [details] Available for editors 
source of synonymy
Yen, T.-C. (1943). Review and summary of Tertiary and Quaternary non-marine mollusks of China. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 95: 267-309. page(s): 293 [details] Available for editors 
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