Margarya melanioides
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| Margarya melanioides | |
|---|---|
 | |
| Apertural view of a shell of Margarya melanioides. | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Architaenioglossa |
| Family: | Viviparidae |
| Genus: | Margarya |
| Species: | M. melanioides |
| Binomial name | |
| Margarya melanioides | |
| Synonyms[1][3][4] | |
Margarya melanioides is a species of large operculate freshwater snail, an aquatic gastropod mollusc in the family Viviparidae, the river snails.
Margarya melanioides is the type species of the genus Margarya.[2][6]
The distribution of Margarya melanioides includes Dian Lake, Erhai Lake, Jianhu Lake, Xihu Lake, and Cibi Lake in Yunnan Province, China.[1][4] Former records in Daduitai Lake and Xingyun Lake are considered as a result of the mix-up of species name.[4]
An average population density was 36 individuals per square meter in Dianchi Lake in 1940s,[7] 0.7 individuals per square meter in 1990s[7] and 0.068 individuals per square meter in Dianchi Lake in 2012.[7]
According to the population ecology research by Song et al. (2013),[7] the population of will collapse in the Dian Lake in 2015.[7]
