100 U. S. NATIONAL MUSEUM BULLETIN 206 



leucophyllata, which is known to reach a length of 35 mm. The 

 immaculate (yellow or red in hfe) anterior and posterior femur is a 

 noteworthy character, which, taken with their small size, separates 

 them from any of the first three groups, as well as from most species 

 of the rubra group. 



The easiest member of this group to recognize is bipunctata bi- 

 punctata, since it has a peculiar areolate network of purplish brown 

 lilies encircling yellow or white spots on the upper lip and side of 

 anterior body, a pattern not repeated exactly in any other Brazilian 

 hylid. A subspecies, bipunctata branneri Cochran, from Pernambuco, 

 is characterized by the absence of the areolation and the presence of 

 a single silvery spot below the eye, among other features. 



H. leucophyllata has an equally characteristic pattern, that of a 

 large, brown rectangle covering the back and extending onto the 

 eyelids, completely bordered with a wide gold or silver border that 

 fades to white iu alcohol. In rare instances this pattern is obscured 

 by dark suffusions over the hght margins. 



The known distribution of these small frogs is often discontinuous. 

 Such small quarry is often passed over by collectors in favor of larger 

 and more conspicuous creatures. It is likely that systematic col- 

 lecting may do much to bridge the apparent gaps in the distribution 

 and widen our appreciation of the number of color and pattern 

 combinations possible in these rather unstable forms. 



For a statistical analysis of measurements of members of the minvta 

 group here discussed, see pages 373 and 377. 



Key to frogs of Group 4 in southeastern Brazil 



o*. Fingers webbed only at the base; diameter of eye equal to its distance from 



end of snout; a dark dorsolateral line from canthus to groin. 



6*. Toes Yi webbed; adpressed heel reaching to center or anterior border of 



eye; snout relatively short and rounded at the tip . . elongata (p. 107) 



b^. Toes % webbed; adpressed heel reaching to tympanum; snout relatively 



narrow, elongate and pointed at the tip nana (p. 124) 



a'. Fingers % webbed; toes % webbed. 



fci. Adpressed heel reaching anterior border of eye. 



c*. Diameter of eye slightly less than its distance from end of snout; inter- 

 orbital diameter twice the width of upper eyelid; upper jaw projecting 

 considerably beyond lower; size up to 20 mm. . . . decipiens (p. 104) 

 c^. Diameter of eye greater than its distance from end of snout; interorbital 

 diameter not exceeding 1J4 times the upper eyelid, 

 d'. Vomerine teeth arising in front of the choanae, converging posteriorly; 

 no round white spot on upper lip; size to 19 mm. 



goughi goughi (p. 109) 

 d*. Vomerine teeth arising between the choanae. 

 e*. Vomerine teeth well separated. 



