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. BROCCHI, P. 1877. Note sur quelques batrachiens hylaeformes recuilles au Mexique et au Guatemala. Bull. Soc. Philom. Paris, ser. 7, 1:122-132. CARVALHO, A. L. 1954. A preliminary synopsis of the genera of American microhylid frogs. Occas. Papers Mus. Zool. Univ. Michigan, 555:1-19, pl. 1. July 16. COCHRAN, D. M. 1961. Type specimens of reptiles and amphibians in the United States National Museum. Bull. U. S. Nat. Mus., 220:xv + 291 pp. COPE, E. D. 1862. Catalogues of the reptiles obtained during the explorations of the Parana, Paraguay, Vermejo and Uraguay rivers.... Proc. Acad. Nat. Sci. Philadelphia, 14, pt. 9:346-359. 1865. Third contribution to the herpetology of tropical America. Proc. Acad. Nat. Sci. Philadelphia, 17:185-198. October. 1871. Ninth contribution to the herpetology of tropical America. Proc. Acad. Nat. Sci. Philadelphia, 23, pt. 2:200-224. COPLAND, S. J. 1957. Australian tree frogs of the genus _Hyla_. Proc. Linnean Soc. New South Wales, 82, pt. 1:9-108. September. 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. 1958. A monographic study of the colubrid snake genus _Leptodeira_. Bull. Amer. Mus. Nat. Hist., 114:1-152, pls. 1-31. February 24. 1963a. A review of the Middle American tree frogs of the genus Ptychohyla. Univ. Kansas Publ. Mus. Nat. Hist., 15:297-349, pls. 11-18. October 18. 1963b. A new species of tree frog, genus _Phyllomedusa_, from Costa Rica. Rev. Biol. Trop., 11(1):1-23. October. 1964. A review of the frogs of the Hyla bistincta group. Univ. Kansas Publ. Mus. Nat. Hist., 15:469-491. March 2. 1965. Frogs of the _Hyla taeniopus_ group. Copeia, no. 2:159-168. June 25. DUELLMAN, W. E. and KLAAS, L. T. 1964. The biology of the hylid frog _Triprion petasatus_. Copeia, no. 2:308-321. June 30. DUMERIL, A. M. C. and BIBRON, G. 1841. Erpetologie Generale ou histoire naturelle complete des reptiles, vol. 8, 792 pp. DUNN, E. R. 1931a. The amphibians of Barro Colorado Island. Occas. Papers Boston Soc. Nat. Hist., 5:403-421. October 10. 1931b. The herpetological fauna of the Americas. Copeia, no. 3:106-119. October 30. 1944. Herpetology of the Bogota area. Rev. Acad. Colombiana Cien. Exact., Fis. Nat., 6:68-81. FOUQUETTE, M. J., JR. 1960. Isolating mechanisms in three sympatric tree frogs in the Canal Zone. Evolution, 14:484-497. December. FUNKHOUSER, ANNE