FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 315 



and dark spots. Venter light clay color, immaculate except for dark 

 suffusions on the throat of the male. 



Remarks. — This species is not difficult to recognize, as it is much 

 heavier in build than its closest ally, L. mystaceus, and lacks the light, 

 dark-bordered stripe on the posterior femur. 



The fourth toe of L. mystacinus is relatively much shorter, and the 

 whole hind limb much stouter and heavier than in L. mystaceus The 

 snout of the former is also more rounded, while the head is broader 

 posteriorly. Glandular dorsolateral folds are weakly developed in 

 mystacinus; in the specimens at hand the skin of that region appears 

 only more porous and thicker than that surrounding it, instead of 

 appearing as the narrow sharp folds characterizing mystaceus. The 

 dorsal color pattern expressed in M^hely's (1904) figure consists of 

 wide longitudinal black dorsolateral stripes, quite different from the 

 more spotted, dull-colored mystaceus. As noted, the posterior femur 

 of mystaceus has a distinct light line edged above and below with dark 

 in all the specimens at hand, while Mehely's figure of mystacinus as 

 well as all specimens I have examined have the posterior femur dark 

 with light irregular spots not arranged in a line. But mystaceus and 

 mystasinus belong obviously in the same subdivision of the genus, 

 since both have a discoidal abdominal fold, a sharp edge around the 

 snout, and a pronounced gland behind the tympanum. 



The frog described was taken in a grass-covered spot near a marsh 

 where eggs of Hyla decipiens were found. In the same field were 

 several adults and young of mystaceus, which occupy the same habitat 

 as mystacinus. 



Specimens examined 



BRAZIL: 



DisTRiCTO Federal: Rio de Janeiro, ZSBS (5), A. Lutz, 1923. 



MiNAS Gerais: Lagoa Santa, UZMK 165-7, Warming. 



Rio de Janeiro: Niter6i, ZSBS (1), 99/25, A. Lutz, 1923. Sacco Sao Francisco, 



Niter6i, USNM 99121, Venancio, Feb. 14, 1935. Teres6polis, ZSBS, Bress- 



lau, Mar. 22, 1929. 

 Rio Grande do Sul: Estrella, ZSBS 16, 58, 59, Gliesch, 1929. Porto Alegre, 



ZSBS 1067/0. Rio Grande do Sul, UZMK 174, von Ihering. Santa Maria, 



IB 613. 

 Santa Catarina: Humboldt, ZMB 29482, Erhardt, ZSBS 70/1925 (6), Erhardt, 



November 1919. 

 Sao Paulo: Butantan, IB 594-5. Capital, IB 177. Cerqueira C^sar, IB 606. 



Leptodactylus ocellatus (Linnaeus) 



Plate 28, Figures a-d 



1758. Rana ocellata Linnaeus, p. 211 (type locality, America). 

 1815. Rana latrans Steffen, p. 8, figs. 1-4. 



1824. Rana pachypus Spix (part), p. 26, pi. 2, fig. 2, pi. 3, fig. 1 (specimens from 

 Rio de Janeiro and Bahia). — Wied, 1825, p. 540. 



