FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 269 



The genus Eleutherodactylus in southeastern Brazil is not very rich 

 in number of species, nevertheless their identification is rendered 

 somewhat difficult by the great variation found among some of them. 

 Examples of E. guentheri from Rio de Janeiro, for instance, have been 

 figured with no less than five different color patterns by Steind&chner. 

 The variations in pattern in some members of this genus have recently 

 been worked out by Goin (1950). 



Only some very young frogs identified as Hylaplesia nigriventris 

 A. Lutz (1925a, p. 139; type localities, Itatiaia [Rio de Janeiro] and 

 Serra de Cubatao [Sao Paulo]) were found in the Instituto Oswaldo 

 Cruz at the time of my visit there in 1935. These small frogs were 

 similar to young of Eleutherodactylus guentheri. Until freshly col- 

 lected adult topotypes can be identified and studied, no satisfactory- 

 conclusion can be dra^vn as to the identity of nigriventris. 



For a statistical analysis of measurements of the species Eleuthero- 

 dactylus here discussed, see pages 373 and 382. 



Key to Eleutherodactylus of southeastern Brazil 



a'. First finger longer than second binotatus (p. 269) 



a^. First finger shorter than second. 

 6'. Heel reaching bej'^ond snout. 



c*. Upper lip flaring considerably, so that snout appears nearly oval. 



guentheri (p. 271) 

 c'. Upper lip flaring slightly, so that snout has nearly straight sides and 



rounded tip nasutus (p. 274) 



62. Heel not reaching beyond anterior corner of eye. 



c'. Interorbital diameter twice the width of upper eyelid . parvus (p. 276) 

 c*. Interorbital diameter barely as great as upper eyelid . 



unistrigatug hoiti (p. 279) 



Eleutherodactylus binotatus (Spix) 



Plate 24, FiauREs a, b 



1824. Rana binotata Spix, p. 31, pi. 20, fig. 3 (type locality not given). 



1871. Hylodes rugulosus (not of Cope) Peters, 1871b, p. 648. 



1873, Hylodes binotatus Peters, 1873a, pp. 206, 219.— Boulenger, 1882a, p. 

 209.— Baumann, 1912, p. 161.— L. Muller, 1922, p. 170.— Nieden, 

 1923, p. 460.— MiRANDA-RiBEiRO, 1923c, p. 836, pi. [1], figs, f, g; 1926, 

 p. 56, figs. 33, 34.— deWitte, 1930a, p. 223.— Mello-LeitXo, 1937, p. 

 267. 



1927. Eleutherodactylus binotatus L. MtJLLER, p. 273.— Mertens, 1930, p. 162. — 

 Travassos, 1944, p. 127.— Myers, 1946, pp. 10, 18. 



1929, Hylodes cinotatus [sic] Litederwaldt, p. 39. 



Description.— Mwlt male, USNM 97403, Tijuca, city of Rio de 

 Janeiro. Vomerine teeth in large, slanting, well-separated arcs 

 behind the choanae; tongue slightly more than one-half the width of 

 mouth-opening, rounded, with a notch in its free posterior border; 

 snout long, bluntly pointed when seen from above and in profile, the 



