Biomphalaria havanensis, common name the ghost rams-horn, is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.
The shell of this species, like all planorbids is sinistral in coiling, but is carried upside down and thus appears to be dextral.
Distribution Biomphalaria havanensis is a Neotropical species.
Distribution of Biomphalaria havanensis include: CubaVázquez A. A. & Perera S. (2010). "Endemic Freshwater molluscs of Cuba and their conservation status". Tropical Conservation Science 3(2): 190-199. HTM, PDF.
It was found as a native transplant in: pond near Snake River in Twin Falls County, Idaho in 1991.U.S. Geological Survey (2005) Biomphalaria havanensis Collection Information. Last modified 7 June 2005. Accessed 12 December 2009. map Guadalupe River, Kerr County, TexasBiomphalaria havanensis (L. Pfeiffer, 1839) Ghost Rams-horn. accessed 12 December 2009.
Phylogeny A cladogram showing phylogenic relations of species in the genus Biomphalaria: free text.
References
External links https://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=1030