THE BATRACHIA OF NOETII AMERICA. 



421 



apart. There are no other ridges of skin as observed iu E. palustris; 

 but a distinct broad groove or farrow may be traced down the middle 

 of the back. 



The fore-arm and hand are of nearly equal length ; the third finger 

 longest; the first and fourth nearly equal, and longer than the second. 

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

 and less than half the length of the body. The third too is longer than 

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

 from the terminal knobs, except on the inside of the second and third 

 toes, where it is excavated to the first articulation. The first and 

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

 margined to the tips. 



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

 or brownish-olive, with simple siibcircular blotches on the back, sides, 

 and buttocks, and indistinct, sometimes much broken fasciie on the 

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

 jaw and reaching 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-wliite. In other specimens the blotches 

 above are finer and more crowded, and the chin and throat coarsely 

 reticulated or blotched with brown, the same marking visible obsoletely 

 on the under surfaces of the thighs. The blotches of sides of body are 

 sometimes much larger and more distinct than elsewhere. 



Fig. 107. Rana clamata. No. 3501. Eutaw, Ala.; \. 



The bars on the legs are sometimes replaced entirely by small blotches. 

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

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

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

 so deep, and the thumbs less thickened. 



In life this species is dark olive posteriorly above, which color grad- 

 ually passes into a brilliant green anteriorly. Below, whiie; the throat 

 citron yellow. - 



