Rhodacmea
# Rhodacmea

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.

Rhodacmea is the type genus of the subfamily Rhodacmeinae.

## 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
* Rhodacmea filosa (Conrad, 1834) – wicker ancylid, type species
* Rhodacmea hinkleyi (Walker, 1908)
