The shells of Melongena species are extremely variable in shape and sculpture, and historically this has meant that a large number of different forms have been named, creating numerous synonyms.
There is still some disagreement about how many modern species of Melongena actually exist. However, phylogenetic analysis indicate that there are only three species in the Western Atlantic, with all snails in coastal Florida being referred to Melongena corona.[7]
Melongena caloosahatcheensis
Melongena consors
Melongena corona
Melongena corona Fossil
Melongena melongena
Melongena patula
Melongena sarasotaensis
Melongena sprucecreekensis
Distribution
The genus Melongena occurs only in the tropical Americas. It appears that three nominally valid species occur in the tropics of the western Atlantic: one in Florida, one in the Yucatan, and one in Central America and the Caribbean. A fourth species is found on the tropical eastern Pacific coast.
Habitat
Species within this genus live in the tropical intertidal zone, in muddy areas such as under mangrove trees.
Life habits
Melongena snails are carnivorous, primarily preying on small bivalves (clams, mussels and oysters). They will also feed on other species of snails and have been known to be cannibalistic.[7]
References
^Wesselingh F. P., Anderson L. C. & Kadolsky D. (2006). "Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia". Scripta Geologica1333: 19-290. PDF.
^ abWoRMS (2010). Melongena Schumacher, 1817. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=205587 on 2011-04-02
^F. M. Anderson and B. Martin. 1914. Neocene record in the Temblor Basin, California, and Neocene deposits of the San Juan District, San Luis Obispo County. Proceedings of the California Academy of Sciences, Fourth Series 4(3):15-112
^ abHayes, K. A., 2003. Phylogeography and Evolution of the Florida Crown Conch (Melongena corona) MS Thesis University of South Florida, Department of Biology.
Abbott, R. Tucker, 1986. Seashells of North America, St. Martin's Press, New York
Keen, A. Myra, 1971. Sea shells of tropical west America, Stanford University Press, Stanford, California
Anderson, F.M., and B. Martin, 1914. "Neocene records in the Temblor Basin, California, and Neocene deposits of the San Juan District, San Luis Obispo County", California Academy of Sciences Proceedings, 4th series, v. IV, p. 14-112.