A Review of the Middle American Tree Frogs of the Genus Ptychohyla

by William Edward Duellman

Shannon, F. A.

1951. Notes on a herpetological collection from Oaxaca and other localities
in Mexico. Proc. U. S. Nat. Mus., 101:465-484, May 17.

Stuart, L. C.

1954. Descriptions of some new amphibians and reptiles from Guatemala.
Proc. Biol. Soc. Washington, 67:159-178, August 5.

Tanner, W. W.

1957. Notes on a collection of amphibians and reptiles from southern
Mexico, with a description of a new Hyla. Great Basin Nat.,
17:52-56, July 31.

Taylor, E. H.

1937. New species of hylid frogs from Mexico with comments on the rare
Hyla bistincta Cope. Proc. Biol. Soc. Washington, 50:43-54, pls.
2-3, April 21.

1942. New tailless amphibia from Mexico. Univ. Kansas Sci. Bull., 28:
67-89, May 15.

1944. A new genus and species of Mexican frogs. Univ. Kansas Sci.
Bull., 30:41-45, June 12.