Helicostoa
Genus of mollusc
From Wikipedia, the free encyclopedia
Helicostoa is a monotypic genus of freshwater snail, an aquatic gastropod mollusc in the order Littorinimorpha containing the single species Helicostoa sinensis.[3]
| Helicostoa | |
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| Syntypes of Helicostoa sinensis. | |
| Scientific classification | |
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| Family: | Helicostoidae Pruvot-Fol, 1937[1] |
| Genus: | Helicostoa Lamy, 1926[2] |
| Species: | H. sinensis |
| Binomial name | |
| Helicostoa sinensis Lamy, 1926[2] | |
Helicostoa is also the only genus in the family Helicostoidae.[4] According to taxonomy of the Gastropoda by Bouchet & Rocroi (2005) the family Helicostoidae has no subfamilies.
Helicostoa sinensis was previously tentatively placed within the superfamily Rissooidea.[3] and before that it was in the superfamily Vermetoidea.[3]
Helicostoa sinensis is only found in China,[4] more specifically in the Yangtze River.[3]
This freshwater snail lives attached or bonded to blocks of limestone.[4]