260 BATRACHIA SALIENTIA. 
Skin of the crown of the head rather thick. Openings of the eustachian tubes 
distinct, but smaller than choane; tongue without posterior notch. Snout very short, 
without canthus, its sides subvertical. Skin of the back, and sometimes of the lower 
thigh, densely studded with tubercles; abdomen with smaller, more scattered, flat 
tubercles. Upper parts greyish, uniform or with brownish marbling; lower parts 
white. 
Length of body . . . . .. . . . «C58 millim. 
4, Scaphiopus multiplicatus. 
Scaphiopus multiplicatus, Cope, Proc. Ac. N. Se. Philad. 1863, p. 51. 
Spea multiplicata, Cope, Journ. Ac. N. Sc. Philad. vi. p. 81 (1866). 
Hab. Mexico, valley of Mexico (Potta). 
Crown of the head covered with skin. A strong fold across the gular region; sides 
with longitudinal folds. Parotoid very large, extending beyond the scapula. Upper 
surfaces coarsely tubercular, skin of the limbs nearly smooth. A large gland occupies 
most of the length of the tibia. Abdomen minutely, pubic region coarsely, rugose. 
Choane smaller than the ostia pharyngea. ‘Tongue entire. Above ashy-brown, below 
yellowish. (After Cope.) 
Length of body. . . . . . . . . . . . « . 5 in. 1 line. 
Fam. HYLIDA. 
HYLA. 
Hyla sp., Laur. Syst. Amphib. p. 32. 
Hyla sp. and Trachycephalus, Dum. et Bibr. Erpét. Gén. viii.; Giinth. Batr. Sal. 
Hyla, Calamites, Hypsiboas, Trachycephalus, Ranoidea, Centrotelma, Scytopis, Osteocephalus, Acro- 
dytes, Smilisca, Dryomelictes, Cinclidium, Cincloscopus, Cope, Journ. Ac. Nat. Sc. Philad. 
vi. (1866-67), and Ll. al. 
Hyla, Bouleng. Batr. Sal. p. 337. 
Hyla, Plectrohyla, and Cauphias, Brocchi, Bull. Soc. Philom. i. pp. 92, 129 (1877). 
Hyliola*, Mocquard, Nouv. Arch. Mus. Hist. Nat. i. p. 337 (1899). 
Pupil horizontal. Tongue entire or but slightly emarginate behind. Vomerine 
teeth +. Fingers and toes dilated into terminal disks, the latter always webbed. 
* This genus is based on the ossification of a cartilage intercalated between the terminal and penultimate 
phalanges of the fourth toe; in a non-ossified and rudimental condition it seems to be present in the majority 
of, if not in all, the species. Insignificant as the taxonomic value of this character appears to be, I should 
have gladly availed myself of it for division of the numerous species of this genus. But at present the condition 
of this part of the skeleton is unknown in a large proportion of the species, nor have I the material for supplying 
the deficiency. 
+ Abnormally in some of the small species vomerine teeth may be wanting: see H. prosoblepon, H. nana. 
