262 BATRACHIA SALIENTIA. 
Brocchi, Miss. Sc. Mex., Batr. p. 82, t. 18. figs. 3-4; Cope, Bull. U. 8. Nat. Mus. no. 82, 
p. 14 (1887). 
Hyla euphorbiacea, Giinth. Batr. Sal. p. 109, t. 10. fig. C. 
Hyla gracilipes, Cope, Proc. Ac. N. Sc. Philad. 1865, p. 194 *. 
Hyla staufferi, Cope, Proc. Ac. N. Sc. Philad. 1865, p. 195. 
Hyla eximia, subsp. staufferit, Cope, Bull. U. S. Nat. Mus. no. 382, p. 14 (1887). 
Hab. Mexico, Chihuahua, alt. 7000-8000 feet (Brimley), Presidio and Ciudad (Lorrer), 
city of Mexico (Doorman, H. H. Smith), Sierra de Cuyatlan, Guadalajara, 
alt. 3860 met. (Buller), Guanajuato (Dugés), Amula (H. H. Smith), Jalisco and 
South Mexico (£7. D. G.). 
Vomerine teeth between the choane, in two transverse groups or slightly oblique 
series ; choane rather more open than eustachian ostia. Snout of moderate length, 
rather depressed, with obtuse canthus and sloping sides. Distance of the nostril from 
the eye nearly as long as the diameter of the latter, and more than the distance of the 
nostrils from each other. Interorbital space wider than the upper eyelid. Tympanum 
distinct, one-half or one-third the area of the eye. Fingers free, with disks as large as 
those of the toes, equal to or somewhat exceeding the area of the tympanum. ‘Toes 
one-third webbed or even less; a tarsal fold. Upper parts smooth, very rarely 
tubercular +; lower parts granular; a fold across the chest; no other folds. Back 
greenish, bluish, or brownish, uniform or with blackish, sometimes light-edged, oblong 
spots; a blackish line along the canthus rostralis continued as a broader band from 
behind the eye, across the tympanum, and along the side of the body; towards the 
back it is sharply defined, generally with a white edge, but towards the abdomen it 
eradually passes into the light coloration of the lower parts; it is also white-edged 
below, between the eye and the shoulder. Upper jaw with a semitransparent horn- 
coloured border; limbs cross-banded; thighs with the concealed parts not pigmented. 
Male with an external subgular vocal sac. 
3 (Mexico). @ (Amula). 
Greatest width of the head . . . . . . 12 millim. 11°5 millim. 
Distance of vent from snout . . . . . . 83 Ca, 30 - 
» ” heel . . . 680 —"7 30 » 
» » metatarsal joint. . . 88 ,, 37°5 i, 
» - end of fourth toe . . 53 ,, 53 - 
* T cannot help thinking that the words “eyes little prominent, one-half tympanic disk,” in Cope’s 
description of H. gracilipes, are a lapsus calami. No Central-American Hyla has so small an eye. Also two 
specimens in the Natural History Museum, named H. gracilipes, do uot differ in this respect from others 
undoubtedly . eaimia. 
+ Tubercular skin observed once only, in a female from Presidio. 
