THE BATEACHIA OF NORTH AMERICA. 365 



HYLA ANDEESONII Baircl. 



(Plate Lxxiv; fig. 1.) 



Proceed. Ac. PhOa., 1854,p. 16; Cope, I. c, 1862, p. 154; Bouleuger, Cat. 

 Batr. Sal. Brit. Mus., 2d ed., 1882, p. 378. 



lu iDroportions and general appearance similar to the Eyla arhorea of 

 Europe. The skin of the upper surface of the body and extremities is 

 smooth, minutely corrugated; that of the throat, belly, and under sur- 

 faces of the femora is areolated. A cutaneous fold across the breast 

 and one across the throat. Tympanum about one-third the size of the 

 eye. Tongue broad, slightly emargiuate. Vomerine teeth in two oblique 

 series between the internal nares, eacb directed inward and backward. 

 The head is sbort and wide, and enters the length three and a quarter 

 times. It is nearly a third wider than long. The muzzle is rounded 

 when viewed from above, and in profile does not project, but rather 

 slopes slightly forwards to the labial margin. The fingers are free, and 

 the web of the toes leaves two phalanges free, except on the fourth toe, 

 where it leaves three phalanges free. The four limbs are rather long ; 

 the hind limbs are moderate, the heel, when extended, reaching the 

 middle of the orbit. The digital pallettes are small, not half the diameter 

 of the typanum. A tubercle on the under side near the proximal end 

 of each phalange. Internal metatarsal tubercle distinct, oval ; external, 

 none. 



Coloration in life. The whole upper a rather deep pea-green, paler 

 upon the sides and the margin of the upper lip. A narrow band of pur- 

 plish-brown commences at the external nares, passes through the eye, 

 and, including the tympanum, loses its inferior border a little beyond the 

 insertion of the humerus. The color becomes paler upon the sides, where 

 it is of an asby mulberry tint, and extends as far as the origin of the 

 femur. Anterior to this point it is margined below by large irregular 

 spots of a beautiful saffron, wbich are continued upon the anterior and 

 posterior surfaces of the femur, and the whole inferior surface of the 

 tibia, upon a ground of a paler shade of the same color. The supero- 

 anterior surface of the tarsus, the three inner toes, and the webs of the 

 external, also a small area behind the humerus, the posterior surface of 

 the Utter, the inferoanterior face of the fore-arm, and the inner finger, 

 are tinted and spotted in the same manner. The superior surfaces of the 

 femur, tibia, humerus, and fore-arm are of the same color as the back ; 

 that of the humerus separated from the green of the jaws by an isthmus 

 of the purplish shade, and that of the tibia separated anteriorly from 

 the saffron of its lower surface by a band of mulberry. The green of 

 the back and extremities is everywhere margined with pure white, ex- 

 cept posteriorly on the femur and tibia, and anteriorly on the former, 

 where saffron takes its place. The green crosses the rictus and forms 

 an oval spot upon each side of the throat. The borders of the latter 

 and of the cbin are tinged with, jnulberry. Beneath whitisli flesh color. 



