Traits name details
original description
(of ) Annandale, T. N. (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. <em>Journal and Proceedings of the Asiatic Society of Bengal, New Series.</em> 19 [1923] (9): 399-422, pl. 17. Calcutta. [October]., available online at https://www.biodiversitylibrary.org/page/31803606 page(s): 415, pl. 17, fig. 9 [details]
basis of record
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): 284 [details] Available for editors 
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