Epicrates is a genus of non-venomous snakes in the subfamily Boinae of the family Boidae. The genus is native to South America and Central America. Five species are currently recognized as being valid, including the rainbow boa.

Distribution and habitat Species of Epicrates are found in lower Central America through South America as far south as Argentina.

Species SpeciesTaxon authorSubspecies*Common nameGeographic rangeImageE. alvareziÁbalos, Báez & Nader, 19640Argentinian rainbow boanorthern Argentina, southeastern Bolivia, western ParaguayE. assisiMachado, 19450Caatinga rainbow boaBrazilE. cenchriaT(Linnaeus, 1758)4*Rainbow boaFrench Guiana, Suriname, Guyana, Colombia, Venezuela, Peru, Brazil, Bolivia, and ArgentinaE. crassus(Cope, 1862)0Paraguayan rainbow boaParaguay, Bolivia, Argentina, and BrazilE. maurusGray, 1849 0Colombian rainbow boa; Brown rainbow boaNicaragua, Costa Rica, Panama, Colombia, Venezuela, Guyana, Suriname, northern Brazil, Trinidad, Tobago, Isla Margarita. ) Not including the nominate subspecies. T) Type species.

Etymology The specific name, alvarezi, is in honor of Argentine herpetologist Antenor Álvarez (1864–1948).Beolens B, Watkins M, Grayson M (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (Epicrates alvarezi, p. 6).

The specific name, assisi, is in honor of Arlindo de Assis who collected the holotype. www.reptile-database.org.

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