Margarya yangtsunghaiensis Tchang & Tsi, 1949 Tchangmargarya yangtsunghaiensis is a species of large operculate freshwater snail, an aquatic gastropod mollusc in the family Viviparidae, the river snails.

[2] The distribution of Tchangmargarya yangtsunghaiensis includes Yangzong Lake in Yunnan Province, China.

[1][2] The diploid chromosome number of Tchangmargarya yangtsunghaiensis is 2n=24.

[3] Zhang et al. (2015) provided details about the shell and about the radula.

This Viviparidae-related article is a stub.