Cei, J.M., Erspamer, V., and Roseghini, M. 1968. Taxonomic and evolutionary significance of biogenic amines and polypeptides in amphibian skin. II. Toads of the genera Bufo and Melanophryniscus. Syst. Zool. 17:232-245. |
|
Deulofeu, V., and Duprat, E. 1944. The basic constituents of the venom of some South American toads. J. Biol. Chem. 153:459-463. |
|