THE BATKACHIA OF NORTH AMERICA. 327 



far apart posteriorly as their anterior extremities are from the nares* 

 The Eustachian apertures verj'^ minute, less than the inner uares. 



The lower parts are covered by a depressed pavement or granulatioUj 

 extending half-way up the side and on the inferior face of the thighs 

 In many specimens this appears to be wanting between and anterior to 

 the arms. The upper j)arts generally are provided with rather scat- 

 tered pustulations or warty elevations, with numerous pores opening 

 between and on them; tlfese pustules are most numerous on the sides 

 and anteriorly. Some are considerably larger and longitudinal, and 

 appear most distinct near the edges of the vertebral vitta. 



The hands are large and well developed; rather longer than the fore- 

 arm. The tips of the fiogers and toes are provided with very slightly 

 enlarged, depressed pallets or disks, convex beneath and with a nail- 

 like groove. 



The outer finger is rather longer than the second, and all appear to 

 be connected by a very slight thickened membrane. The inner finger 

 is set at a right-angle with the third and posterior to the rest. There 

 is a soft large tubercle at its base, and a still larger opposite io it on 

 the other side of the palm, the two with only a narrow interval. All the 

 articulations of the fingers and toes have well-developed tubercles be- 

 tween them. 



The femur is shorter than the tibia, rather longer than the foot; the 

 tibia is more than half the length of the body. The two outer meta- 

 tarsi are firmly united, the others cleft to the base; the intervals of the 

 latter, however, filled up by a well-developed membrane, which extends 

 as far as the bases of the disks, and filling up most of the space between 

 the toes, except on each side of the longest, where the membrane forms 

 a narrow margin on the penultimate joint. The third toe is a little 

 longer than the fifth or outer. The cuneiform process makes a consid- 

 erable prominence, while on the opposite or outer side of the tarsus 

 and foot are three or four small tubercles, at about equal distances, 

 the distal one opposite the cuneiform process and largest. The tuber- 

 cles beneath the articulations are very distinct. There is a rudimentary 

 membrane along the exterior edge of the loot. 



In alcohol the general color above is of a dull brown. During life, 

 however, an area bounded by lines extending from the nostrils and 

 diverging to the middle of the edge of the upper eyelid, then converg- 

 ing to the sacral vertebra, then again widening to the buttocks, is of a 

 bright grass green. This is interrupted between the eyes by a well- 

 defined triangle of brown, nearly equilateral, with rather concave sides, 

 ;and its base connecting the edges of the npper eyelids. A dusky line 

 ■extends along the canthus rostralis. The sides of the face and edges 

 <of the upper jaw exhibit three or four indistinct square blotches, sepa- 

 irated by narrower intervals ; one or more sometimes better defined than 

 the rest. A dark broad line extends from the sides of the lower jaw to 

 tthe lower part of the insertion of the arm, and another from the posterior 



