Rhodacmea Explained

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.^[1]

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^[2]
• Rhodacmea filosa (Conrad, 1834) – wicker ancylid,^[3] type species
• Rhodacmea hinkleyi (Walker, 1908)^[1]

Notes and References

1. Ó Foighil D., Li J., Lee T., Johnson P., Evans R. & Burch J. B. (2011). "Conservation Genetics of a Critically Endangered Limpet Genus and Rediscovery of an Extinct Species". PLoS ONE 6(5): e20496. .
2. Bogan, A.E. . 1996 . Rhodacmea elatior . 1996 . e.T19669A9002012 . 10.2305/IUCN.UK.1996.RLTS.T19669A9002012.en.
3. Cordeiro, J. . 2012 . Rhodacmea filosa . 2012 . e.T19670A2475285 . 10.2305/IUCN.UK.2012-1.RLTS.T19670A2475285.en.