THE BATEACHIA OF NORTH AMERICA. 335 



CHOROPHILUS OCCIDENTALIS Bd. & Gird. 



Litoria occidentaUs Bd. &, Gird., Proceed. Ac. Phila., 1853, p. 301. 



Cuslignailius onuUus " Holbr.", Giiutber, Cat. Batr. Sal. Brit. Mus., ed., 1858, p. '29; nee 



liolbrookii. 

 CJiorophilus ocularis Cope. Cbeck-List N, Amer. Bat., Reptil., 1875, p. 30; nee Rijla 



ocularis Daudin. 

 Choropliilas copii Boulenger, Cat. Batr., Sal. Brit. Mns.; ed. ii, 1882, p. 334. 



Head rather acute. Tibia reacbiug half-way from the amis to the 

 nostrils. Above, chestnut with obsolete blotches of darker. A dark 

 chestnut stripe from snout through eye and tympanum, with several 

 large oblique blotches of the same on the sides. Beneath, reddish- 

 white ; immaculate. 



Proi3ortions rather slender and graceful. Head rather acute ; no 

 perceptible contraction at the neck -, legs long and much developed. 



The nostrils are situated very near the tip of the snout (the sides of 

 which are rather abrupt) ; they are separated from each other by less 

 than one-third the width of the head. The eyes are moderate, the tym- 

 panum small, about half the diameter of the orbit. A groove passes 

 from the posterior portion of orbit above and around the tympanum to 

 the insertion of the arm in front. Anterior margin of the eyes about 

 opposite the middle of the commissure. Tongue variable in different 

 specimens^ iu one (a male) large, and tilling up the interspace of lower 

 jaw; the edges thin and free behind and laterally 5 broadly or orbicu- 

 larly cordiform. In two others the tongue is contracted into smaller 

 space, thus thickening the edges, although still retaiuiug much the same 

 shape. The inner nostrils are large, opposite to the anterior canthus of 

 the orbit. The vomerine protuberances are iu two elliptical patches, their 

 longer axes in the same transverse line; their anterior edges just behind 

 the posterior border of the nostrils; the two separated by a narrow in- 

 terval. One specimen has the patches more elongated, and narrower 

 than the two others. 



The head is slightly shorter than broad. The fore-arm is longer than 

 the hand; the tibia, about half the length of the body, is longer than 

 the thigh, and about the length of the foot. 



The lingers and toes are all slender, cylindrical, and tapering slightly 

 to the delicate tips, which present no indications of pallets. Tlie lingers 

 are entirely free ; the outer longer than the second, the third longest. 

 The two external metatarsals are united to the end, with no web between 

 them. The other metatarsals are divided to the tarsus, but connected 

 by a w^eb of considerable development, which scarcely passes beyond 

 the ends of the metatarsus. The outer toe is longer than the third. 

 Transverse apophyses of sacral vertebra dilated, with triangular pallet. 



The under parts, anterior to the slight j)ectoral fold, are entirely 

 smooth. Behind this is a pavement of depressed granules, which ex- 

 tends to the inferior and posterior surface of the thighs, becoming finer 



