TIIK J5ATUA(;illA OF Nctl.'TII AMICUICA. 



429 



of the eye, wliciico it passes n\o\\^ tho, np[)('r vaga of the maxillary 

 lioiie as a well-dcrmeil /;roovo i'.\teii(liii,n- bcMieatli tli'^ lymi)aiiui»i. 

 Tliere is no fold of skin passing over and behind tho tynii)annui, as 

 in A', catesbiana. The tyniiKinuni is moderate, snbelliptical, with the 

 ' . ^' longest diameter longitudinal, the center above the angle of the mouth, 

 its anteiior edge rea<!hing within one-third of a diameter of the eye 

 from the eye. The rim is well defined, being slightly raised above the 

 H'vel of the tympanum itself, which is nearly smooth, exhibiting only 

 a slight granulation in the center. The tongue is broad, short, subor- 



rf-v 



Fid. lOlt. lidiia iiioi)tc:uiiiiv. Valley of Moxico; }. 



bicular, ami with the ciornua distant and <|nite small; it is free on 

 the sides an«l behind for two thirds its length. The internal nares 

 are small, transverse, exteriorly produced into a groove extending some- 

 what oblicpu'ly backwards to the edge of tho maxillary bones ; their 

 centers nearer the anterior eanthus orbitalis than to the exterior nos- 

 trils. T!ie vomerine teeth are situated on two protuberances, which are 

 inclined l)ackwards at an acute angle, and placed with their anterior 

 bases in a line with the anterior edges of the internal nares; the teeth 

 themselves are lew in number, minute, and range oblicpiely on the pos- 

 terior portion of the crest of the jjrotuberances. The teeth on the edge 

 of tiie ui»per jaw are well developed, and extend to the inner edge of the 

 angle of the mouth. The Eustachian openings are large, and at least 

 twice the diameter of the ehoana'. An external vocal vesicle of con- 

 siderable size is seen on each side at the angle of the Jaws, as large as a 

 very large jiea after being contractted by alcohol. 



As already stated, there are two «listin(!t ridges of skin, one on each 

 side the back, commencing above the tymi»anum. They are I'recpiently 

 interrupted, and do not reach the groin. The upper i)arts are gener- 

 ally smooth, but with warts on tlu^ sides of the body, where they 

 are llattencd at top; occasional warts are scattered over tho back, 



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