166 PROCEEDINGS OF THE ACADEMY OF [April, 



Skin perfectly smooth above and on sides of both trunk and limbs. 

 Lower surface of body, including breast, belly, and lower femoral 

 region, weakly granular, though granules all rather large in size. 

 Lower surfaces of fore limbs and throat, smooth. 



Limbs rather slender. Fingers and toes entirely free, without any 

 webs whatever. First finger a little shorter than second, dilated 

 basally with moderate tubercle or pollex, third longest, and tips of 

 all broadly dilated so that front edges wide, or greater tharf diameter 

 of tympanum. Toes slender, fourth much longest, and distal disks 

 or dilations similar to those on fingers. A well-developed tubercle 

 at base of first toe on sole of foot inside, and of about equal extent to 

 that of first finger. Tarsal fold very indistinct. 



Color in alcohol largely dull or gray-brown above, much paler 

 below. Back scarcely variegated. A dark broad band connects 

 •eyes across interorbital for its posterior extent and beyond till 

 opposite hind edge of tympani. Limbs above with indistinct darker 

 cross-bars or blotches. Groin not variegated, and breast and belly 

 likewise. 



Length 20 mm. 



Type, No. 18,113, A. N. S. P. Huigra, at an elevation about 4,000 

 feet, Ecuador. February 13, IQIL S. N. Rhoads. 



Related to Hyloxalus hocagei Espada,^* which differs in having the 

 ^kin quite smooth, canthus rostralis angular, loreal region nearly 

 vertical, tympanum half width of eye, toes nearly entirely webbed, 

 and coloration. 



(Named for Huigra, the type locality.) 

 Rana brevipalmata rhoadsi subsp. nov. PI. IX, upper figure. 



Body moderately depressed. Head moderately depressed, wider 

 than rest of body. Snout moderately depressed, somewhat pointed 

 as viewed from above, well protruded beyond lower jaw. Eye large, 

 about equals snout in length. Mouth large, rictus extends back 

 opposite front edge of tympanum. Maxillary teeth short, conic, 

 strong, uniserial, and hidden by lip. Vomerine teeth weak, small, 

 in two rounded patches between and partly behind internal nares. 

 Tongue large, sagittate or elongately triangular with deep notch 

 behind, and posteriorly free for a third its length. Internal nares 

 well separated, moderate in size. External nares small, widely sepa- 

 rated, further apart than interorbital width. Canthus rostralis little 

 developed, and lores oblique. Interorbital depressed, though 



^* Boulenger, Cat. Batr. Sal, 1882, p. 138. Sarayacu and Canelos. 



