Tchangmargarya

Tchangmargarya is a genus of large operculate freshwater snails, aquatic gastropod molluscs in the family Viviparidae.^[2]

Tchangmargarya
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Architaenioglossa
Family:	Viviparidae
Subfamily:	Bellamyinae
Genus:	Tchangmargarya He, 2013[1]
Diversity[2]
2 species
Synonyms
Margarya (Tchangmargarya) He, 2013

Taxonomy

Tchangmargarya originally was a subgenus of Margarya,^[1] and is elevated to a full genus based on molecular phylogeny and comparative morphology study.^[2]

Distribution

This genus appear to be endemic to Yangzong Lake and lakes in Stone Forest in Yunnan Province in the China.

Species

There are 3 extant species of Tchangmargarya:^[2]

• Tchangmargarya yangtsunghaiensis (Tchang & Tsi, 1949) -type species ^[3][2](possibly extinct)
• Tchangmargarya multilabiata Zhang & Chen, 2015 ^[2]
• Tchangmargarya ziyi Zhang, 2017 (possibly extinct)