THE 15ATRACIIIA OF NORTH AMKUICA. 



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fiir apart posteriorly as tlieir anterior extioinities are from the nares. 

 Tlie Eustachian apertures very nunute, less than the inner nares. 



The lower parts are covered by a depressed. pavement or granulation, 

 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 parts generally are provided with rather scat- 

 teied pustulations or warty elevations, with numerous pores opeidng 

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

 and anteriorly. Some are considerably larger and longitudinal, and 

 aj)pear most distinct near the edges of the vertebral vitta. 



The hands are large and well develojjed; ratl'er longer than the fore- 

 aru). The tips of the lingers and toes are i)rovided with very slightly 

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

 like groovi'. 



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

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

 is set at a right-angle with the third and posterior to the I'est. There 

 is a soft large tul)ercle at its base, and a still larger opposite to it on 

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

 arti(!ulations 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 h'ugth of the bo«ly. The two outer meta- 

 tarsi are (irmly uuit<'d, the others cleft to the base; the intervals of the 

 latter, however, fille«l uft by a well-developed inend)raiu», which exteiuls 

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

 the toes, ex<!ept 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 tifth or outer. The (tuneilorm process makes a consid- 

 (■raltle promiiuMice, while on the opposite or (»ufer sidi^ of the tarsus 

 and foot are three or four small tubercles, at about e<|ual distances, 

 the distal one oi)|»osite the cuneiform process and largest. The tul)er- 

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

 membrane along the e\teri<u' edge of the loot. 



In alcohol the general color al)i)ve is of a dull brown. During life, 

 however, an area itoumled by lines extending from the jiostrils and 

 div«'rging 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 

 blight grass green. This is inlerru|»ted l)etween tlu^ eyes by a well- 

 delined trianghsof bi'own, lu'arly ecjuilateral, with rather c()ncave sides, 

 and its base connecting tiie edges of the upi)er eyelids. A ilusky line 

 extends along the canfhus rostralis. The sides of the. face and edges 

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

 rated by narrower intervals ; oneor more sometimes better defined than 

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

 the lower part of the insertion of the arm, an«l another from the posterior 



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