FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 



57 



These differences are summarized in the following key: 



a*. Head broader than long. 



6'. Skin usually very thick, glandular; pattern of dorsolateral light stripes 



usually irregular; arms and legs heavily crossbarred venulosa (p. 63) 



6*. Skin moderately thin, smooth; dorsolateral light stripes usually regular; 



arms and legs without definite bars mesophaea (p. 60) 



a^. Head as long as broad imitatrix (p. 57) 



Hyla imitatrix Miranda-Ribeiro 



Figure 6; Plate 5, Figures e, p 

 1926. Hyla imitatrix Miranda-Ribeiro, p. 77 (type locality, Teres6polis, Organ 

 Mountains, Rio de Janiero. 



Description. — Adult male, USNM 101722, Teresdpolis, Rio de 

 Janiero. Vomerine teeth in two very heavy, transverse, narrowly 



Figure 6. — Hyla imitatrix, USNM 101722: a, Dorsum; b, profile; c, foot; d, hand; all X 1. 



separated series behind the choanae; tongue three-fifths as wide as 

 mouth-opening, cordiform, slightly notched on its partially free 

 posterior border; head as broad as long; snout moderate in length, 

 rounded when viewed from above, rather truncate in profile; nostrils 

 more lateral than superior, very slightly projecting, their distance 

 from end of snout about two-fifths that from eye, separated from each 

 other by an interval almost as great as their distance from eye. 

 Canthus rostrahs prominent, loreal region concave, the upper labial 

 region jutting out sharply below it. Eye moderately large, fairly 

 prominent, its diameter equal to its distance from nostril; interorbital 

 diameter shghtly greater than that of upper eyehd, IK times the width 



