186 U. S. NATIONAL MUSEUM BULLETIN 206 



either planicola or northern aurantiaca. The apparently greater 

 adult size of orophila, and its more or less distinct dorsal pattern 

 differentiate it from the smaller, entirely immaculate orophila. 



The degree of webbing on hands and feet, the shape of the snout 

 and the position of the vomerine teeth are very similar in the two 

 subspecies, and are subject to about the same degree of variation. 



Boulenger's cotypes of H. paruula from Lagos, Santa Catarina, 

 belong to the genus Cochranella (Taylor and Cochran, 1953, 1628). 

 A third cotype, from Teres6polis, Rio de Janeiro, appears to be a 

 young orophila. 



Specimens examined 

 BRAZIL: 



Rio de Janeiro: Benito, Serra da Bocaina, USNM 96692-6, A. Lutz, 1925. 

 Nova Friburgo, ZMB 73-2463 (2). Teres6polis, BM 95.3.6.5, Goeldi. 



Hyla aurantiaca planicola Lutz and Lutz 



Plate 17, Figures c, d 



1912. Hijla aurantiaca (not of Daudin) Baumann (part), p. 163.— Miranda- 



RiBEiRO (part), 1926, p. 70. 

 1938. Hyla (Sphenohyla) planicola Lutz and Lutz, p. 182, figs. 3-5 (type locality, 



Recreio dos Bandeirantes, also Baixada Fluminense, Districto Federal). 

 1946. Hyla planicola Myers, pp. 12, 30. 



Description. — Adult female, USNM 97619, Recreio dos Bandei- 

 rantes. Vomerine teeth in two short, narrowly separated, posteriorly 

 converging groups considerably behind the posterior borders of the 

 choanae; tongue three-fourths as wide as the mouth-opening, pos- 

 teriorly cordiform and very deeply notched, anteriorly transversely 

 truncate to correspond with the anterior border of the lower lip, which 

 is squarely cut off and not rounded; snout moderate in length, angu- 

 larly /^^-shaped when viewed from above, truncate and declivous in 

 profile, the snout projecting very considerably beyond the lower jaw; 

 nostrils lateral, not projecting, their distance from end of snout about 

 one-fifth that to anterior border of eye, separated from each other by 

 an interval equal to about three-fourths their distance from eye. 

 Canthus rostralis not very well defined; loreal region vertical, flat. 

 Eye moderate, not very prominent, its diameter slightly less than its 

 distance from end of snout; interorbital diameter about 1}^ times the 

 width of upper eyelid, almost 2 times the distance between nostrils. 

 Tympanum distinct except at its upper border where it is somewhat 

 obscured by the very finely glandular skin of the upper parts, about 

 one-half the diameter of the eye, separated from the eye by a distance 

 equal to one-half its own diameter. Fingers one-third webbed, 

 fourth appreciably longer than second and extending almost to disk of 

 third, which nearly covers the tympanic area; a very pronounced 

 rudiment of a pollex visible; toes three-fourths webbed, third and 



