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Helicostoa

Genus of mollusc From Wikipedia, the free encyclopedia

Helicostoa
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Helicostoa is a monotypic genus of freshwater snail, an aquatic gastropod mollusc in the order Littorinimorpha containing the single species Helicostoa sinensis.[3]

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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]

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References

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