Pomacea paludosa

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Pomacea paludosa, common name the Florida applesnail, is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Ampullariidae, the apple snails.

Shell description

File:Pomacea paludosa 01.JPG
Five views of a shell of Pomacea paludosa

This species is the largest freshwater gastropod native to North America.[1]

The shell is globose in shape. The whorls are wide, the spire is depressed, and the aperture is narrowly oval.[1] The shells are brown in color, and have a pattern of stripes.

The shell is Script error: No such module "convert". in both length and width.[1]

Distribution

The indigenous distribution of this snail is central and southern Florida,[2] Cuba and Hispaniola.[3]

The nonindigenous distribution includes northern Florida. The species has also been found in Georgia, Oahu, Hawaii (Devick 1991)Script error: No such module "Unsubst"., Louisiana, and Oklahoma.[3]

Ecology

File:Pomacea paludosa eggs maturation.jpg
The maturation of eggs of Pomacea paludosa: freshly laid eggs in a thick mucus matrix have a salmon coloration (left). Mature eggs in calcified shells are pinkish white in color (right).

This is a tropical species. It is amphibious, and can survive in water bodies that dry out during the dry season.[1]

Applesnails have both gills and lungs.

References

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  1. a b c d Burch, J. B. 1982. North American freshwater snails. Walkerana 1(4):217-365.
  2. Thompson, F.G. 1984. The freshwater snails of Florida: a manual for identification. University of Florida Press, Gainesville, Florida, 94 pp.
  3. a b Dundee, D. S. 1974. Catalog of introduced molluscs of eastern North America (north of Mexico). Sterkiana 55:1-37.

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Further reading

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