278 BATRACHIA SALIENTIA. 
24, Hyla underwoodi. 
Hyla microcephala, Bouleng. P. Z. S. 1898, p. 481, t. 39. fig. 3 (nec Cope). 
Hyla underwoodi, Bouleng. Ann. & Mag. N. H. 1899, iil. p. 277. 
Hab. Costa Rica, Bebedero (Underwood). 
Vomerine teeth in two small groups well separated from each other, between the 
choane. Head rather small, a little longer than broad; snout not depressed, with 
angular canthi, which convergent form a somewhat acute angle in front ; the distance 
between the nostrils is much less than their distance from the orbit, or than the 
diameter of the eye. Tympanum distinct, one-fourth the area of the eye. Fingers 
one-third, toes three-fourths webbed ; disks of both subequal, and about the size of the 
tympanum. Wo tarsal fold. Upper parts smooth; abdomen eranular; no folds. 
Pinkish, powdered with brown ; a brown band, edged with white above, runs along the 
side of the snout, and through the eye to the side of the body, gradually fading behind ; 
the white edge marks distinctly the canthus and margin of upper eyelid, and is 
continued above the tympanum across the shoulder. Thighs not pigmented. Lower 
parts white. 
Greatest width of head . . . . . .. . . . . 85 millim. 
Distance of vent from snout. . . . . . . . . . 285, 
7 » heel . 2. 2 we eee R88 » 
” ” metatarsal joint . . . . . . 384 - 
3 - end of fourth toe. . . . . . 46 » 
25. Hyla nigripes. 
Hyla nigripes, Cope, Journ. Ac. N. Sc. Philad. viii. p. 104, t. 23. fig. 7 (1876). 
Hab. Costa Rica (Cope). 
Vomerine teeth between the choane, in two short transverse series. Shape of head 
oval, tongue longer than broad; canthus rostralis a little concave; sides of the snout 
oblique. Tympanum one-fourth or one-fifth the area of the eye; eustachian ostia and 
choane nearly equal. Fingers with the web extending to about one-half the length of 
the longest; web of toes not extending to the end of the penultimate phalanx ; disks 
of moderate size. Smooth above, finely areolate below. Dark brown, limbs and feet 
blackish ; groin finely white and blackish marbled; no lateral border or band 
Posterior face of femur black; no spots on any other region. (After Cope.) 
Width of head. . . . . . . ee ee ee 618 milli. 
Length of body . . . 2. 2. 1 ee ee ee ee BDF 
s hindlimb. . . . . . . . . es . «668 
33 
» hindtoot. . . . ...... . + + 16 
33 
