1918. The amphibians collected by the American Museum expedition to Nicaragua in 1916. Bull. Amer. Mus. Nat. Hist., 38:311-347.

Rand, A. S.

1957. Notes on amphibians and reptiles from El Salvador. Fieldiana, Zool., Chicago Nat. Hist. Mus., 43:505-534. April 18.

Rivero, J. A.

1961. Salientia of Venezuela. Bull. Mus. Comp. Zool., 126:1-207. November.

Savage, J. M.

1966. The origins and history of the Central American herpetofauna. Copeia, 4:719-756. December 23.

Schmidt, K. P., and L. C. Stuart

1941. The herpetological fauna of the Salamá Basin, Baja Verapaz, Guatemala. Field Mus. Nat. Hist., Zool. Ser., 24:233-247.

Seba, A.