Pomacea paludosa

Pomacea paludosa
Colored engraving of a live Pomacea paludosa made by Helen Lawson († 1854) and published in 1845 A monograph of the freshwater univalve Mollusca of the United States: including notices of species in other parts of North America by Samuel Stehman Haldeman.
Conservation status

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Caenogastropoda

informal group Architaenioglossa

Superfamily: Ampullarioidea
Family: Ampullariidae
Genus: Pomacea
Subgenus: Pomacea
Species: P. paludosa
Binomial name
Pomacea paludosa
(Say, 1829)

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

Two views of a shell of Pomacea paludosa

This species is the largest freshwater gastropod native to North America.[2]

The shell is globose in shape. The whorls are wide, the spire is depressed, and the aperature is narrowly oval.[2] The shells are brown in color, and have a pattern of stripes.

The shell is 60 mm in both length and width.[2]

Distribution

The indigenous distribution of this snail is central and southern Florida,[3] Cuba and Hispaniola.[4]

The nonindigenous distribution includes northern Florida. The species has also been found in Georgia, Oahu, Hawaii (Devick 1991), Louisiana, and Oklahoma.[4]

Ecology

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.[2]

Applesnails have both gills and lungs.

References

  1. Cordeiro, J. & Perez, K. (2011). "Pomacea paludosa". IUCN Red List of Threatened Species. Version 2014.1. International Union for Conservation of Nature. Retrieved 1 July 2014.
  2. 2.0 2.1 2.2 2.3 Burch, J. B. 1982. North American freshwater snails. Walkerana 1(4):217-365.
  3. Thompson, F.G. 1984. The freshwater snails of Florida: a manual for identification. University of Florida Press, Gainesville, Florida, 94 pp.
  4. 4.0 4.1 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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