Rhodacmea

Rhodacmea
	Two views of a shell of Rhodacmea filosa
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia; clade Euthyneura; clade Panpulmonata; clade Hygrophila
Superfamily:	Planorboidea
Family:	Planorbidae
Subfamily:	Rhodacmeinae
Genus:	Rhodacmea; Walker, 1917[1]
Diversity[2]
	3 species

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 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]

References

Walker B. (1917). "A revision of the classification of the North American patelliform Ancylidae with descriptions of new species". The Nautilus 31(1): 1-10. page 5. plate 1-plate 3.
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. doi:10.1371/journal.pone.0020496.
Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
Bogan, A.E. (1996). "Rhodacmea elatior". IUCN Red List of Threatened Species. 1996: e.T19669A9002012. doi:10.2305/IUCN.UK.1996.RLTS.T19669A9002012.en.
Cordeiro, J. (2012). "Rhodacmea filosa". IUCN Red List of Threatened Species. 2012: e.T19670A2475285. doi:10.2305/IUCN.UK.2012-1.RLTS.T19670A2475285.en.

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[Walker_1917-1] Walker B. (1917). "A revision of the classification of the North American patelliform Ancylidae with descriptions of new species". The Nautilus 31(1): 1-10. page 5. plate 1-plate 3.

[Ó_Foighil_2011-2] 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. doi:10.1371/journal.pone.0020496.

[3] Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.

[IUCN1996-4] Bogan, A.E. (1996). "Rhodacmea elatior". IUCN Red List of Threatened Species. 1996: e.T19669A9002012. doi:10.2305/IUCN.UK.1996.RLTS.T19669A9002012.en.

[IUCN2000)-5] Cordeiro, J. (2012). "Rhodacmea filosa". IUCN Red List of Threatened Species. 2012: e.T19670A2475285. doi:10.2305/IUCN.UK.2012-1.RLTS.T19670A2475285.en.