Tadpoles in various stages of development were found at Finca La Paz, Guatemala, in late July. This indicates that there is either extreme differential growth, or, more probably, an extended breeding season. A tadpole having a body length of 6.8 mm. and a total length of 19.1 mm. has a short median first upper tooth-row; lower tooth-rows 3-6 are only two-thirds as long as lower rows 1 and 2. Two recently metamorphosed young have snout-vent lengths of 14.2 and 14.8 mm.; they are colored like the adults. _Remarks._--The type specimen of _Hyla euthysanota_ Kellogg (1928:123) is a female; therefore, when Taylor (1944) proposed the name _Ptychohyla_ for hylids having ventrolateral glands in breeding males, he was unaware that _Hyla euthysanota_ was a member of this group. In his description of _Hyla rozellae_, Taylor (1942) did not compare his specimens with _Hyla euthysanota_, but instead placed _H. rozellae_ with _H. loquax_ and _H. rickardsi_. The type series of _H. rozellae_ consists of one large adult female and several metamorphosing young. Taylor (1949:16) based the description of _Ptychohyla bogerti_ on two males and compared these specimens with _P. adipoventris_ Taylor [= _P. leonhardschultzei_ (Ahl)]. Thus, in a period of 22 years the females of this species were given two names and the male another. Stuart (1954:169) suggested that _Hyla euthysanota_ and _Hyla rozellae_ were _Ptychohyla_. Now that sufficient specimens are available from throughout the range it is possible to determine that the various named populations are conspecific. _Distribution._--This subspecies inhabits cloud forests at elevations of 660 to 2200 meters on the Pacific slopes of the Sierra Madre from extreme eastern Oaxaca and western Chiapas, Mexico, through Guatemala to northern El Salvador; probably it occurs also in southwestern Honduras. Aside from the specimens listed below, three in the Frankfurt Museum from Depto. Santa Ana, El Salvador (44571, Hacienda San Jose; 43040, Hacienda Los Planes; 65119, Miramundo) are listed by Mertens (1952:29). _Specimens examined._--MEXICO: _Chiapas: Cascarada, 30 km. W of Ciltapec_, UMMZ 87851-2; Cerro Ovando, UMMZ 87853-4; Chicomuselo, UMMZ 94439-40; Finca Juarez, 28 km. N of Escuintla, USNM 115052-5; _Las Nubes, Cerro Ovando_, USNM 115030-8; Salto de Agua, USNM 115039-51. _Oaxaca_: Cerro Pecho Blanco, UIMNH 40963; between La Gloria and Cerro Azul, UIMNH 40976-7; Rio Grande, AMNH 51847-8; Santo Tomas Tecpan, UIMNH 41071. GUATEMALA: _San Marcos_: Finca La Paz, 2 km. W of La Reforma, KU 58001-14, 59937 (skeleton), 60042-3 (tadpoles), 60044 (4 young), MCZ 34997, UMMZ 107739, 123151-7 (tadpoles); Finca Pirineos, Rio Samala, CNHM 35066. _Santa Rosa_: Finca La Gloria, UMMZ 123148 (tadpoles), 123150 (tadpoles). _Solola_: Finca Santo Tomas, UMMZ 123149 (tadpoles); Olas de Moca, near Moca, CNHM 20208. EL SALVADOR: _Chalatenango_: Los Esemiles, USNM 73296. _Santa Ana_: Miramundo, CNHM 65120.