FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 171 



reaching in front of the eye, but not to the nostril, when adpressed. Tibia and 

 femur almost equal in length so that the heels overlap very slightly when placed 

 parallel to each other. Forearm thick. Snout short, rounded to oval from above, 

 projecting slightly over the lower jaw from the side, with marked, curved, canthus 

 rostralis, truncate in front and steep, excavated loreal region. Ventral outline 

 of the head and mouth wider and shorter than in H. albofrenaia. Vomerine teeth 

 in short, separate, slightly curved groups between and behind the choanae. 

 Tongue flat, disk-shaped, hardly free or emarginate behind. Eye fairly prominent, 

 slightly shorter in diameter than the distance from its anterior corner to the tip 

 of the snout. Nostrils very small, lateral, inserted obliquely below the anterior 

 corner of the canthus. Tympanum small, two-fifths of the diameter of the eye, 

 separated from it by an interval almost equal to its own diameter, covered above 

 by a fold to the axilla. Interorbital space double or almost double the width of 

 the upper eye lid. First finger much shorter than the second, fourth slightly 

 longer. Fingers about half-webbed, but with fringes along the digits. A callosity 

 below the first finger. Vestiges of nuptial excrescences outside it, more distinct 

 in glandular males with thick forearms. Third and fifth toes subequal. Foot 

 about two-thirds webbed, in some more, as the length of the web differs, with 

 fringes along the digits. A white line on the edge of the lower jaw, a very distinct 

 glandular ridge on the forearm and hand, tarsus and foot, outlining the contour 

 of the joints in glandular specimens, but not produced into appendages. A 

 short supra-anal ridge and a few scattered, round, pustules near the anus and 

 on the mid-line of the ventral aspect of the thigh but no serried rows of miliumlike 

 glands as in H. albosignata. Skin delicate, very minutely granular on the abdomen 

 and the postero-ventral aspect of the thigh. 



Size: 44^50 mm., from snout to vent. 



Colour in alcohol ivory. 



Type locality & types: The Organ Mountains National Park at Theresopolis. 

 Alt. 1200 ms. above sea level at km. 4.5 of the trail to the top of the Range; 

 22° 26' 14" Lat. S. Types in the Museu Nacional in Rio de Janeiro. 



Hyla prasina Burmeister 



Plate 15, Figures j-l 



1856. Hyla -prasina Burmeister, p. 106, pi. 31, fig. 2, 2,a, b, d, e, (type locality, 

 Neu-Freiburg [=Nova Friburgo, Rio de Janeiro].) 



Description. — Adult male, IOC, Nova Friburgo, Rio de Janeiro. 

 Vomerine teeth in two sm.all, round, distinct, well-separated patches 

 between the choanae; tongue a little more than two-thirds the width 

 of mouth opening, very broadly cordiform, slightly indented on its 

 posterior border which is only narrowly free; snout short, bluntly 

 rounded when seen from above, slanting forwards in profile, the upper 

 jaw projecting slightly beyond the lower; nostrils more superior than 

 lateral, projecting, their distance from end of snout about one-third 

 that to eye, separated from each other by an interval a trifle less than 

 their distance from eye. Canthus rostralis curving, fairly distinct 

 because of the flat sloping loreal region, below which the upper lip 

 bulges out, leaving a diagonal furrow from eye to nostril below the 

 loreal region; diameter of eye equal to its distance from end of snout; 



