Remarks.—Five metamorphosing tadpoles and juveniles (KU 58074, 58234-8) were found at night on vegetation by streams. Of two completely metamorphosed young each has a snout-vent length of 15.7 mm. Another having a snout-vent length of 16.2 mm. has a tail stub 2 mm. long and a completely metamorphosed mouth. Two others have snout-vent lengths of 13.6 and 14.1 mm. and tail lengths of 11.5 and 8.1 mm. respectively; in these the mouth parts are incompletely metamorphosed. The single female available (UMMZ 121399) contains approximately 60 ovarian eggs, the largest of which are about 2.5 mm. in diameter.
Referred Specimens.—Chiapas: 6.2 km. S of Rayón Mescalapa, KU 58063-74, 58199 (1 tadpole), 58234-8; 5.6 km. S of Rayón Mescalapa, KU 58062, 58200 (5 tadpoles); 11.4 mi. N of Pueblo Nuevo Solistahuacán, UMMZ 121395-9. The specimens listed last were collected along a stream between Pueblo Nuevo Solistahuacán and Rayón Mescalapa, which, according to Floyd L. Downs, is probably the same stream listed above as 5.6 km. S of Rayón Mescalapa.
Acknowledgments
I take this opportunity to thank Dale L. Hoyt, Thomas E. Moore, and John Wellman, who ably assisted in collecting and studying these frogs in the field. I am indebted to Floyd L. Downs for permission to include specimens collected by him and John Winklemann. My studies on hylid frogs are supported by the National Science Foundation (Grant G 9827).
LITERATURE CITED
Duellman, W. E.
1960. Synonymy, variation, and distribution of Ptychohyla leonhard-schultzei Ahl. Studies of American Hylid Frogs. IV. Herpetologica, 16:191-197, September 23.
Stuart, L. C.
1954. Descriptions of some new amphibians and reptiles from Guatemala. Proc. Biol. Soc. Washington, 67:159-178, August 5.
Taylor, E. H.
1944. A new genus and species of Mexican hylid frogs. Univ. Kansas Sci. Bull., 30 (pt. 1):41-45, June 12.
Transmitted January 23, 1961.
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