Boulenger, G. A.
1898. Fourth report on additions to the batrachian collection in the
Natural-History Museum. Proc. Zool. Soc. London, 1898,
pp. 373-482, pls. 38-39. October 1.
1899. Descriptions of new batrachians in the collection of the
British Museum (Natural History). Ann. Mag. Nat. Hist, ser.
7, 3:273-277, pls. 11-12.
Breder, C. M. Jr.
1946. Amphibians and reptiles of the Rio Chucunaque Drainage, Darien,
Panama, with notes on their life histories and habits. Bull.
Amer. Mus. Nat. Hist, 86:375-436, pls. 42-60, August 26.
Cole, L. J. and Barbour, T.
1906. Vertebrata from Yucatan: Reptilia; Amphibia; Pisces. Bull. Mus.
Comp. Zool., 50:146-159. November.
Cope, E. D.
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.
1931. The amphibians of Barro Colorado Island. Occas. Papers Boston
Soc. Nat. Hist., 5:403-421. October 10.
1933. Amphibians and reptiles from El Valle de Anton, Panama.
_Ibid._, 8:65-79. June 7.
1934. Two new frogs from Darien. Amer. Mus. Novit., 747:1-2.
September 17.
Fouquette, M. J. Jr.
1960a. Call structure in frogs of the family Leptodactylidae. Texas
Jour. Sci., 12:201-215. October.
1960b. Isolating mechanisms in three sympatric tree frogs in the Canal
Zone. Evolution, 14:484-497. December 16.
Gaige, H. T., Hartweg, N. and Stuart, L. C.
1937. Notes on a collection of amphibians and reptiles from
eastern Nicaragua. Occas. Papers Mus. Zool., Univ. Michigan,
357:1-18. October 26.
Gosner, K. L.
1960. A simplified table for staging anuran embryos and larvae with
notes on identification. Herpetologica, 16:183-190.
September 23.
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.
1935. A contribution to a knowledge of the herpetology of a portion
of the savanna region of central Peten, Guatemala. Misc. Publ.
Mus. Zool., Univ. Michigan, 29:1-56, pls. 1-4. October 4.
Taylor, E. H.
1952. The frogs and toads of Costa Rica. Univ. Kansas Sci. Bull.,
35-577-942. July 1.
_Transmitted July 11, 1967._