266 XJ. S. NATIONAL MUSEUM BULLETIN 206 



Variations. — The only other example of this species in the U. S. 

 National Museum is a younger male, from the same locality, having 

 two black spines on each thumb. Its pattern is a little brighter than 

 that of the described specimen, and the dark sinuous dorsal marks, 

 outlined by the regular rows of pale warts, like small naUheads, make 

 a very distinctive pattern. 



Remarks. — The type of C. ohausi was a young specimen only 18 mm. 

 long. Dr. WandoUeck wrote to me on Nov. 27, 1937, that no breeding 

 spines on the thumb were apparent. As the Zwinger Museum was 

 being rebuilt in 1938 when I visited Dresden, the type unfortunately 

 was not available to me for examination, but the excellent colored 

 figures given by Dr. Wandolleck leave no room for doubt that this 

 species is the same as Cycloramphus distinctus Lutz, described 25 

 years later. It is localized in the mountains of Rio de Janeiro, where 

 it was found at Petr6polis by Dr. A. Lutz in 1930 and 1931, and at 

 Teres6polis by Dr. B. Lutz in 1939. 



In appearance it suggests a hornless Ceratophrys, which WandoUeck 

 believed it to be, and it appears to be one of the transition forms that 

 establish a degree of relationship between Ceratophrys and Cyclor- 

 amphus. 



Specimens examined 



BRAZIL: 



Rio de Janeiro: Teres6polis, USNM 118998-9, Venancio, April 1939. 



Cycloramphus umbrinus (Cope) 



Plate 23, Figures k, l 



1867. Grypisciis umbrinus Cope, p. 206 (type locality, Rio de Janeiro). — Nieden, 

 1923, p. 354. — Barbour, 1925, p. 8.— Miranda-Ribeiro, 1926, p. 39, 

 fig. 22; 1935, p. 413.— Barbour and Lovbridge, 1929, p. 270. 



1928. Cyclorhamphus fuliginosus (not of Tscliudi) A. Lutz, p. 640; 1929a, pp. 



10, 22, pi. 1, figs. 1, 2; pi. 2, figs. 1, 5; pi. 5, figs. 4-6. 



1929. Iliodiscus lutzi Miranda-Ribeiro, 1929b, pp. 15, 30 (new name for Cyclor- 



amphus fuliginosus (not of Tschudi) Lutz) . 

 1935. Grypiscus lutzi Miranda-Ribeiro, p. 415. 

 1951. Cycloramphus Juliginostis (not of Tschudi) Bokermann (part), p. 81. 



Description. — Adult male, USNM 81144, city of Eio de Janeiro. 

 Vomerine teeth in two, heavy, slanting, well separated patches behind 

 the posterior borders of the choanae; tongue two-thirds as wide as 

 mouth opening, rounded, its posterior border quite free, raised on a 

 thickened stalk; a trilobed toothlike process on anterior border of 

 lower jaw, the central lobe most prominent; snout rounded when seen 

 from above, slanting forwards but truncate at the very tip in profile 

 due to the thickened rim of upper lip ; upper jaw not projecting beyond 

 lower; nostrils small, superior, slightly projecting, separated from each 



