300 U. S. NATIONAL MUSEUM BULLETIN 2 06 



the limbs well developed, while two of the others, on which the tail is 

 practically absorbed, are the same length. The smallest male, 

 measuring 19 mm., already has 9-15 thumb spines; two males, each 

 21 mm. long, have 6-6 and 14-20 spines, while the single female, 25 

 mm. long, is without spiny patches on the thumb. The adpressed 

 heel extends beyond the snout in two and to between the eye and tip 

 of snout in the other two. The interorbital diameter equals the width 

 of the upper eyelid in three; in one it is narrower. 



Four young and many larvae from Paineiras are the same in detail 

 as the four young ones found near an adult male of this species in 

 Petr6polis. 



Remarks. — This species is very distinct in some of its characters, 

 although in general it is similar to E. miliaris and E. lutzi. Its chief 

 points of difference from them are its more pointed snout, and its 

 thumb patch of fairly large and regular spines, numbering between 

 6 and 20, which suggest those of the genus Crossodactylus in their size 

 and arrangement. Eupsophus miliaris is much larger than the other 

 two, adults up to 78 mm. being known, and it has usually two thumb 

 patches of very minute spiny tubercles, and a single smaller patch 

 on the second and often on the third fingers. Its snout is variable in 

 shape but is usually flattened on the sides and bluntly rounded in 

 front. E. lutzi is only a little larger than petropolitanus ; in the small 

 series at hand the largest one measures 28 mm., but like miliaris it has 

 the minute spiny tubercles in two patches on the thumb and none on 

 the second and third fingers. Its snout is almost a semicircle when 

 seen from above, being conspicuously broader and blunter than either 

 of the two allied species. All three occur together at Petrdpolis. 



Three cotypes, KZAEM D2037, measure 21, 20, and 22 mm. 

 in head and body length. The first had no spines on its hands, the 

 others 10-7 and 8-9 spines, respectively. 



Specimens examined 

 BRAZIL: 



DisTRiCTO Federal: Rio de Janeiro, ZSBS 33/1947, A. Lutz, 1923. Paineiras, 



Corcovado, USNM 97437-41, B. Lutz and Cochran, Jan. 27, 1935. 

 Rio de Janeiro: Independencia, near Petr6polis, USNM 97648-9, B. Lutz, 

 Cochran, and Venancio, May 5, 1935. Petr6polis, USNM 81135-6, A. Lutz, 

 1930; MZUM 68759, A. Lutz; KZAEM D2037 (3 adults, cotypes of Hylodes 

 petropolitanus, and many tadpoles), Ohaus; ZSBS (5), A. Lutz, 1932. Teres6- 

 polis, USNM 96462, A. Lutz, Nov. 9, 1929. 



