HYLA. 277 
the southern parts of Central America. However, it differs by a broader head and 
by the absence of a tarsal fold. The position of the vomerine teeth is the same 
in both species. One of the Costa Rica specimens has a brown ground-colour of the 
upper parts, marbled with darker. 
23. Hyla leucophyllata, (Tab. LX XII. figs. C & D.) 
Hyla leucophyllata, Beiris, Schrift. Berl. Ges. naturf. Freund. iv. p. 178, t. 41. fig. 4; Dum. et 
Bibr. Erpét. Gén. viii. p. 607; Bouleng. Batr. Sal. p. 387. 
Hyla elegans, Wied, Beitr. Naturg. Bras. i. p. 529; Abbild. tab. —. 
Hyla triangulum, Ginth. P. Z. S. 1868, p. 489, t. 38. fig. 4. 
Hyla ebraccata, Cope, Proc. Ac. Nat. Se. Philad. 1874, p. 68. 
Hab. Nicaragua (Bransford); Costa Rica (Mus. Nac. de Costa Rica, San José) ; 
Panama (Mus. Brit.).—TropicaL AMERICA. 
Vomerine teeth in two very small groups between the choane. Snout short, broad, 
not depressed, with the canthus rather obtuse, and with the sides convex. The distance 
between the nostrils equals their distance from the eye, and is less than the diameter 
of the latter. Tympanum small, rather indistinct, about one-fourth the area of the 
eye. Interorbital space wider than the upper eyelid. The three outer fingers are half- 
webbed, with disks about as large as the tympanum; rudiment of pollex scarcely 
projecting. Toes almost entirely webbed; no tarsal fold. Upper parts smooth, 
abdomen granular ; a fold across the chest. Back white or yellowish ; generally with 
a deep brown hourglass-shaped spot, enclosing behind the coccygeal region ; a brown 
band on the side of the head and body ; limbs brown, with various large white spots. 
Femur always colourless. 
The coloration varies greatly, the white and brown ground-colours forming various 
patterns. Of the two Panama specimens which I have seen, one (fig. C) has the back 
uniform white, but the lateral brown band is present, the upper lip having a white 
margin; also the limbs are almost entirely white, only the upper arm and the fingers 
being brown. ‘The other example (fig. D) is ornamented with the dorsal hourglass- 
shaped figure; but this figure, like the other brown spots, encloses a number of round, 
small, white dots; the upper lip has a white margin, as in the other specimen, An 
individual from Nicaragua described by Cope seems to have had a very similar 
coloration. 
Greatest width ofhead. . . . . . . . . .) . ) .) «12 millim. 
Distance of vent from snout. . . ...... =. 88 » 
3 » heel 2... . ew ww. 86 OY 
» metatarsal joint . . . . . . 45 (y 
end offourth toe . . . . . . Gh, 
3? 33 
BIOL. CENTR.-AMER., Batr., September 1901. #36 
