Attributes / relations provided by
♦ 1Sexual dimorphism in head shape and diet in the cottonmouth snake (Agkistrodon piscivorus), Shawn E. Vincent, Anthony Herrel and Duncan J. Irschick, J. Zool., Lond. (2004) 264, 5359
♦ 2Diet of the Timber Rattlesnake, Crotalus horridus, Rulon W. Clark, Journal of Herpetology, Vol. 36, No. 3, pp. 494-499, 2002