iii 



380 BULLETIN 31, UNITED STATES NATIONAL MUSEUM 



iSoinewIiiit similar in gencriU iippeaninco and markings to //. versicolor, 

 although more .sleiulcr, iiiuch .sinoothci', iind limb.s nioro elongated. It 

 is one of the larger s[)ecies. 



The tynipannni is very large and distinct, nearly equaling the eye in 

 diameter, and having a slight fold of skin above it- The head is nar- 

 rower, more ])ointed, and more deeply cleft than in Jt. versicolor; tho 

 snout in front of the eyes longer. The tongue is subovate, less free 

 behind than in //. verfiicnlor, aiul scarcely notched. The posterior iiares 

 are larger and nearer together; they are larger than rhc Eustachian 

 apertures, which are rather linear; the patches of teeth are very small. 

 The skin above is nearly smooth, little less so than in large specimens 

 of Ifj/la caroUiicnsis. IJcneath, however, the graiuilation is much as in 

 II. versicolor. The webbing of tho feet is much as in 11. versicolor; heel 

 to nares and eiul of muzzle. 



Above, ash-gray. A rather broad dark bar passes backwards and 

 inwards from above each eye, the two meeting in the mid<lle. liehind 

 this is an irregular cross, with broad branches, forming acute angles 

 before and b(!hind, the anterior extremities shorter and running into 

 the obtuse V-shaped bar between the eyes. Two blotches behind the 

 extremities of the posterior branches, as described in //. versicolor, and 

 often conlhu'iit with them. The thighs and legs are each barred trans- 

 versely with three bands; those on the hind leet are iu)t distln(!lly to 

 bo made out. On the upper jaw there is a distinct grayish-white spot 

 under the posterior half of the eye about the si/e of the tympanum, 

 r.ehind the tympanum, and extending on the base of tho arm above, 

 is also a white blotch. The sides arc yellowish-white, vernn'cnlated 

 sparsely with black, which color is concentrated on and under the 

 s(!apular folds, so as to form a very conspicuous black spot. The jws 

 terior faeces of the thigh brown, with yellowish-wliito spots, not vermic- 

 ulated, as in the northern specimens of IF. versicolor. Whole lower 

 surface dull white. 



Agrees with //. arcnicolor (Sonora) in length of hind limbs and smaller 

 fore-arm, but dilfers in being nuuih smoother and larger; in the sub- 

 cru<!if(U'm dorsal blotch ; black spot over fore-arm ; vermiculated or re- 

 ticulated thighs and side, still larger tympanum, etc. 



Inches. 



Total lonf!;tli "Jl L(i(i 



llead, loii^rth 7,1 , ;u 



Head, widtli 1» . :!r 



Fore iiriii iiiul liiiiul from olliow.. \i . aO 

 Thi^'h I'Ji .r,i 



InduK. 



Lc-; m ,r,',> 



Tiir.sus 7i . :!l 



Hind foiif. 10 .41 



Total liiiul Icij 40 \A\\ 



