Rhodacmea
Genus of gastropods
From Wikipedia, the free encyclopedia
Rhodacmea is a genus of small freshwater snails or limpets, aquatic gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies.[2]
| Rhodacmea | |
|---|---|
| |
| Two views of a shell of Rhodacmea filosa | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Superorder: | Hygrophila |
| Family: | Planorbidae |
| Genus: | Rhodacmea Walker, 1917[1] |
| Diversity[2] | |
| 3 species | |
Rhodacmea is the type genus of the subfamily Rhodacmeinae.[3]
Anatomy
These animals have a pallial lung, as do all pulmonate snails, but they also have a false gill or "pseudobranch". This serves as a gill, which is necessary as, in their non-tidal habitat, these limpets never reach the surface for air.
Species
Species in the genus Rhodacmea include:
- Rhodacmea elatior (Anthony, 1855) – domed ancylid[4]
- Rhodacmea filosa (Conrad, 1834) – wicker ancylid,[5] type species[1]
- Rhodacmea hinkleyi (Walker, 1908)[2]