Helicostoa | |
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Syntypes of Helicostoa sinensis. | |
Scientific classification | |
Kingdom: | Animalia
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Phylum: | Mollusca
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Class: | Gastropoda
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(unranked): | clade Caenogastropoda
clade Hypsogastropoda clade Littorinimorpha |
Superfamily: | Truncatelloidea
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Family: | Helicostoidae Pruvot-Fol, 1937[1]
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Genus: | Helicostoa Lamy, 1926[2]
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Species: | H. sinensis
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Binomial name | |
Helicostoa sinensis Lamy, 1926[2]
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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]
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]