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Family of gastropods From Wikipedia, the free encyclopedia
Pomatiopsidae is a family of small, mainly freshwater snails, (some also occur in other habitats) that have gills and an operculum, aquatic gastropod mollusks in the superfamily Truncatelloidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
Pomatiopsidae | |
---|---|
A live individual of Oncomelania hupensis | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Caenogastropoda |
Order: | Littorinimorpha |
Superfamily: | Truncatelloidea |
Family: | Pomatiopsidae Stimpson, 1865 |
Pomatiopsidae are well known as intermediate hosts of Asian schistosomes.[1]
Species in the family Pomatiopsidae occur worldwide.[1] The generic diversity of Pomatiopsinae is particularly high in the Japanese Archipelago, where four of the eight genera, including two endemics, are recorded.[1] The subfamily Triculinae radiated as aquatic snails in freshwater habitats in Southeast Asia.[1]
The American malacologist William Stimpson first defined this taxon as Pomatiopsinae in 1865.[4] Stimpson's diagnosis reads as follows:[4]
Pomatiopsinae, with the shell and operculum as in the Rissoinae. Foot with lateral sinuses. Size small. Amphibious. Genus Pomatiopsis, Tryon.
The family Pomatiopsidae consists of 2 subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005)[5] that follows classification by Davis (1979):[6]
Family-group name Rehderiellinae Brandt, 1974[12] is also in Pomatiopsidae, but it is not allocated in detail.[5]
Genera within the family Pomatiopsidae include:
Subfamily Pomatiopsinae
Subfamily Triculinae - there are over 20 genera in Triculinae[1]
tribe Triculuni
tribe Jullieniini
tribe Lacunopsini
tribe Pachydrobiini
Rehderiellinae is not allocated to a subfamily[5]
The Pomatiopsidae have various life habits: aquatic, amphibious, littoral, halophilic, cavernicolous and even terrestrial.[1][13] Terrestrial taxa occur only on the Japanese Archipelago located in East Asia (Blanfordia).[1] Tomichia and Coxiella include several halophilic species occurring on saline lakes.[1]
Pomatiopsidae invaded freshwater habitats from marine ones in one or in two independent lineages.[20] They also invaded terrestrial habitats from freshwater habitats in two independent lineages.[1]
Genus | Number of species | Habitat |
---|---|---|
Blanfordia | 3[1] | terrestrial[1] |
Cecina | 8[3] | littoral of the sea[3] |
Coxiella | 10[6] (one of them extinct)[6] | saline lakes[21] |
Fukuia | 3[1] | terrestrial and freshwater, amphibious, often arboreal[1] |
"Fukuia" ooyagii - unassigned to genus[1] | 1 | freshwater[1] |
Hemibia | ?? | ?? |
Idiopyrgus | 1-3 species[1][15] | freshwater[15] |
Oncomelania | 2[1] | freshwater, marshy ground, seasonally amphibious[1] |
Pomatiopsis | 4[6] | marshy ground, amphibious[1] |
Tomichia | 11[1] | freshwater, brackish,[16] saline lakes[1] |
Delavaya | ? | ? |
Fenouilia | ? | freshwater |
Lithoglyphopsis | ? | ? |
Tricula | 15-20+ | freshwater |
Hubendickia | 16[6] | ? |
Hydrorissoia | 7[6] | ? |
Jullienia | 10[6] | ? |
Karelainia | 4[6] | ? |
Kunmingia | ? | ? |
Neoprososthenia | ? | ? |
Pachydrobiella | 1[6] | ? |
† Paraprososthenia | fossil, freshwater lake beds | |
Saduniella | 1[6] | ? |
Lacunopsis | 12[6] | ? |
Gammatricula | 4 | ? |
Halewisia | 1[6] | ? |
Jinghongia | ? | ? |
Neotricula | 2 (at least)[1] | freshwater |
Pachydrobia | 10[6] | ? |
Robertsiella | 3[22] | freshwater, streams[22] |
Wuconchona | ? | ? |
Rehderiella | ? | ? |
Spiripockia | 1[13] | cavernicolous[13] |
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