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TilK HATRArillA OK NORTH AMERICA. 



421 



iipai't. Tliero iir<"i no other ri(l}j[('s of skin iis observed in li. palnslris; 

 but ii distinct broad j^roovc or I'linow may bo tiaced down the middle 

 of tlie back. 



Tlio forearm and hand are of nearly e(|nal U'nytli ; the tliird linger 

 h)n^a'st; the first and fourth nearly e(|nal, and longer than the second. 

 The hind legs are short; the tibia, femur, and hind foot about equal, 

 and less than half the lengtii of the body. The third toe is longer than 

 tlie fifth. The web between the toes is well developed, and extends 

 iiotn tiie terminal knobs, except on the inside of the second and third 

 toe.s, where it is excavateil to tlie lirst articulation. The lirst and 

 second Joints of the longest toe are not webbed, but are narrowly 

 inargine<l to the tips. 



The general (tolor, as preserved in alcohol, is of a dull greenish-brown 

 or brownish-olive, with simple! subcircidar blotclu's on the back, sides, 

 and buttocks, and imlistinct, sometimes much broken fascire on the 

 limbs. There is in some an obscure yellowish line along the sides of the 

 jaw and reacihing to the arm, and a dark mark from the commissure to 

 the arm beneath this line. The edges of the Jaw are blotched with 

 brown; beneath, yellowish-white. In other specimens the blotches 

 above are finer and niore (Mowded, and the chin ami throat coarsely 

 reticulated or blotched with brown, the same marking visibh^ obsoletely 

 on the under surfaces of the thiglis. The blotches of sides of body uro 

 sometimes much larger and more distinct than elsewhere. 



Fin. 107. /^aiiiJ r/'imn^rt. No. :)r>01. Kiitnw, .\I:».; J. 



Tiie bars on t lie legs are sometimes replaced entirely by small blotches. 

 The females, as already stated, differ in having a smaller tympanum, 

 though neither here nor in the males is the jnoportioiuil size always the 

 same. The body is more swollen behind; the head narrower and not 

 so deep, and the thumbs less thickened. 



In life this species is dark olive i)osteriorly above, which color grad- 

 ually passes into a brilliant green anteriorly. IJelow, wiiiie; the throat 

 citron yellow. 



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