FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 7 



mm., the bony development of the back in three of them is Hke that 

 of the adults in extent, although perhaps is not so great in thickness; in 

 the remaining five a mere patch of bone can be seen on each side of 

 the back, with a slight connecting bar just forming in one. The 

 parotoid patches are distinct from that of the head; in one specimen 

 the latter is completely divided by an unosslfied median line, and in 

 another the closing is completed anteriorly only. Individual varia- 

 tion is again apparent even in these very young forms, however, as 

 a 15-mm. individual from Petr6polis has only two unconnected small 

 patches on either side of the backbone, while a 14.5-mm. one from 

 Petr6polis has the large rectangular ossified patch like that found in 

 the typical adults of 19 or 20 mm. 



The so-called varieties of Brachycephalus described by Miranda- 

 Ribeiro as atelopoide, nodoterga, garbeana, and bufonoides, said to occur 

 with one another or with tjrpical ephippium, are properly synonyms 

 of ephippium since there is no valid zoogeographic or structural basis 

 on which to separate them. 



Several lots of tadpoles are at hand. They are extremely large con- 

 sidering the small size of the adult. One with the limb buds not yet 

 showing has a total length of 48 mm., of which the tail comprises 33 

 mm. In alcohol they are a uniform buff; in life A. Lutz noted that 

 they were orange in color, looking quite like the yellow tadpoles of 

 Cochranella eurygnatha (Lutz). Their eyes are inconspicuous. The 

 adults hide under leaves and fallen tree-trunks in high mountain woods 

 and come out in rainy weather in rather large numbers. Their 

 movements are characteristically slow, and their gait is a slow walk. 



Specimens examined 



BRAZIL: MHNP 5022 (1); MHNP 778, Eydoux and Souleyet; MHNP 5023 

 (8), Leprieur; MHNP 5593, Cocteau. 



Bahia: Bahia [Salvador], ZSBS 1021/0 (1), Spix. 



DiSTRicTo Federal: Rio de Janeiro: MHNP 02-379, Wagner; AMNH 

 17416, A. Lutz, January 1930. Corcovado, USNM 96332-6, A. Lutz, 1928. 

 Jardim Botdnico, BM 1920.3.20.4, Hill. Tijuca, USNM 97425, A. Lutz, 

 Cochran, Veuancio, Jan. 21, 1935. 



Rio de Janeiro: Bonito, Serra da Bocaina, USNM 96776-8, A. Lutz, 1927-28. 

 Independencia, near Petr6polis, USNM 96431-4, A. Lutz, Nov. 20, 1926; 

 USNM 96435-9, A. Lutz, 1930; USNM 101133, A. Lutz, B. Lutz, Cochran, 

 May 5, 1935. Itatiaia, NHMW, Zerney, October 1927. Mountains of 

 Rio de Janeiro, AMNH 36248, 1930. Paraty, MHNP 8160 (2). Petr6- 

 polis, KZAEM 18 D 2036, Ohaus, 1906. Serra da Bocaina, USNM 81159-60, 

 96639 (tadpoles), A. Lutz, January 1930. Teresopolis, USNM 81161 

 (tadpoles), A. Lutz, 1930; USNM 96463 (tadpoles), A. Lutz, Apr. 20, 1930; 

 AMNH 20863, Miranda-Ribeiro; ZSBS 7991 (3), April 1914; ZSBS 34/1929 

 (3), Bresslau, Apr. 3-8, 1929. 



Sao Paulo: Alto da Serra, MRHN 9308 Reg. 51, Massart, September 1922. 

 Piquete, BM 1907.7.29.11-15, Robert. 



