Anacondas or water boas are a group of large boas of the genusEunectes. They are a semiaquatic group of snakes found in tropical South America. Three to five extant and one extinct species are currently recognized, including one of the largest snakes in the world, E. murinus, the green anaconda.[3][4][5]
^Hsiou, Annie S.; Albino, Adriana M. (1 December 2009). "Presence of the genus Eunectes (Serpentes, Boidae) in the Neogene of Southwestern Amazonia, Brazil". Journal of Herpetology. 43 (4): 612–619. doi:10.1670/08-295.1. S2CID55097666.
^ abMcDiarmid, R. W.; Campbell, J. A.; Toure, T. (1999). Snake Species of the World: A Taxonomic and Geographic Reference. Vol. 1. Washington, District of Columbia: Herpetologists' League. ISBN1-893777-01-4.