Attributes / relations provided by
♦ 1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
animaldiversity.org♦ 2Frimpong, E.A., and P. L. Angermeier. 2009.
FishTraits: a database of ecological and life-history traits of freshwater fishes of the United States. Fisheries 34:487-495.
♦ 3Natural History of the South American Water Snake Helicops leopardinus (Colubridae: Hydropsini) in the Pantanal, Central Brazil, Robson W. Ávila, Vanda L. Ferreira and Janaína A. O. Arruda, Journal of Herpetology, Vol. 40, No. 2, pp. 274279, 2006
♦ 4Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005).
Host-Parasite Database of the Natural History Museum, London