Kellogg, R.

1932. Mexican tailless amphibians in the United States National Museum. Bull. U.S. Natl. Mus., 160:1-224. March 31.

Rivero, J. A.

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

Smith, H. M.

1951. The identity of Hyla underwoodi Auctorum of Mexico. Herpetologica, 7:184-190. December 31.

Stejneger, L.

1906. A new tree toad from Costa Rica. Proc. U. S. Natl. Mus., 30:817-818. June 4.

Stuart, L. C.