Middle American Frogs of the Hyla microcephala Group

by William Edward Duellman; M. J. Fouquette

1886. Thirteenth contribution to the herpetology of tropical America. Proc. Amer. Philos. Soc, 23:271-287. February 11.

1894. Third addition to a knowledge of the Batrachia and Reptilia of Costa Rica. Proc. Acad. Nat. Sci. Philadelphia, 1894, pp. 194-206.

Duellman, W. E.

1956. The frogs of the hylid genus Phrynohyas Fitzinger, 1843. Misc. Publ. Mus. Zool., Univ. Michigan, 96:1-47, pls. 1-6. February 21.

1967. Additional studies of chromosomes of anuran amphibians. Syst. Zool., 16:38-43, March 17.

Duellman, W. E. and Cole, C. J.

1965. Studies of chromosomes of some anuran amphibians (Hylidae and Centrolenidae). Syst. Zool., 14:139-143. July 9.

Duellman, W. E. and Trueb, L.

1966. Neotropical hylid frogs, genus Smilisca. Univ. Kansas Publ., Mus. Nat. Hist., 17:281-375, pls. 1-12. July 14.

Dunn, E. R.