V 



nr,< of 

 :iiiieii. 



liolic. 



Ti 



f 



TIIK IJATUACUIA OV NORTH AMERICA. 



407 



vocal vesicles. A {jflatKluhir ridj^o extends from the iiiUUlle of the iu- 

 fiTior eiljje of tlie tyiiipiiiiii; drum to ii point iiljove the middle of the 

 humerus. There are four thick glaudiihir folds on the back, the exter- 

 nal or dorsolateral commencing above the tympanum. Tlio tiiickness 

 of these ridges is much greater than in the 7i'. vircscens vinscciis, but iu 

 some specimens of tlie K, v. hrachycepliala they approach very closely in 

 form, and are in fact not distinguishable from those of individuals of this 

 species where the ridges are narrower than usual. In a few individuals, 

 of which .lie specimen described is one, there is another pair of ridges 

 near the middle line of the back. In all the specimens these a repre- 

 resented in the ju'lvic region by a pair of approximated ridges on each 

 side of the urostyle. 



The interorbital width is two-thirds the width of an eyelid. 



The tubercles of the palm are well developed. Tlie first (second) fin- 

 {;er is longer than the second, and equal to tlie fourth. The internal 

 cuneiform tubercle is small and weak, and is without acute edge. There 

 is a trace of an external tubercle. The toes are nut fully \vebl)ed ; the 

 edges of the web are deeply scalloped, leaving two phalanges of the 

 fourth toe free, an 1 leaving only a narrow border to the distal half of 

 the antepenultimate phalange. 



V-sh 



Fui. lOi. nana palustiig. No. 13403. Gairi.son's, N. Y.; }. 



Miasurvmciita of Xo. I;J403, 



LciiHitli of head aud body 



Width of head at posterior t'd-^es of tympana. 

 Liiii;th of lu-ad (o [)08U'iior edges of tympana. 



Li'iifrtliof fore limb 



Length of fore foot 



Length of hind leg to groin 



Length of tibia 



Length of tarwns 



Length of remainder of foot 



M. 



.070 



.0-^7 



M'i 



.o:?7 



.016 ■ 



.115 



.04'.) 



.0-20 



.039 





\ ' ) 



rl: 



hi 



>l 



1 



