Tchangmargarya yangtsunghaiensis (Tchang & Tsi)

Yangtsunghai Freshwater Snail (Tchangmargarya yangtsunghaiensis)

The Yangtsunghai Freshwater Snail was described in 1949; it is, or maybe was, endemic to the deep water areas of Lake Yangzong Hai in Yunnan, China.

The lake is polluted, and the pollution apparently is still going on; no specimens were ever found since the species’ description.

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syn. Margarya yangtsunghaiensis Tschang & Tsi

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Photo: geguo
https://www.inaturalist.org/people/annona123
https://creativecommons.org/licenses/by-nc/4.0/

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References:

[1] Robert H. Cowie; Claire Régnier; Benoît Fontaine; Philippe Bouchet. Measuring the Sixth Extinction: what do mollusks tell us? The Nautilus 131(1): 3-41. 2017

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edited: 01.03.2024