1855.] 425 



perfectly free, that is to say without any web ; between the second and third and 

 third and fourth, there is a slight appearance of palrnation or a webbed membrane. 

 The webs of the toes do not reach to their points : the second toe is one third 

 longer than any of the others, and is naked for a greater length. 



Length 1.8 in., arms 1.1 in., legs 2.65 in. 



This is the true H. clamator of Bosc, (not clamata which is a misreading of 

 Mr. Bosc'a name); this name has been given by Dr. Holbrook to a species which 

 I have never seen. 



R. cokspersa. 



Head punctured and wrinkled in a daedal manner. Body above smooth or 

 warty at the will of the animal, sometimes these warts being so arranged as to 

 resemble a cutaneous, fold on the sides of the back. Beneath white, sha- 

 greened or very finely granulate. Color above green or greenish cinereous, 

 or cinereous sometimes varied on the greener jaws and on the sides with white. 

 Top of the back with an infinity of small dots of paler, and marked with nume- 

 rous small, round, irregularly scattered spots of dusky, which are however some- 

 times nearly evanescent. Chin and throat frequently tesselate with dusky. 

 Arms brownish spotted with dusky. Legs above brownish, varied with darker ; 

 hind part of the thighs warty, dirty white varied with dark brown, or pale brown 

 varied with darker, beneath spotted with brown, tibia above a little warty, almost 

 always with a few transverse bars of darker, beneath pale brown, third and 

 fourth toes much longer in proportion than in other species, toes not dilated at 

 the tips. 



Length 1.8 in., arm and hand 1 in., leg 3 in., thigh 1.6 in., tibia and foot .94, 

 tympanum .15. 



Inhabits Pennsylvania in ponds and ditches. 



Individuals are found which at times have the warts on the back arranged in 

 such a manner as to simulate a cutaneous fold ; beneath this there is sometimes 

 likewise a short line of the same kind. 



A young one of this species which I kept for a long time in a glass jar along 

 with many others, was able to climb up the vessel in which he was imprisoned 

 and to support himself there as well as a Hyla would have been able to do. 



It has been thought by some that this was nothing more than a young bull- 

 frog. But I have them not an inch in length, when the larva of the bull-frog 

 before it loses its tail is frequently three inches long in the body. 



R. sylvatica. R. sylvatica L. C. 1. c. Ead. Harlan & Pennsylvanica ejusd, 1. c. 

 330. 



This species has sometimes the dark baron the head scarcely distinguishable, 

 in others it is entirely wanting ; it resembles the Rana temporaria of Europe 

 very much, and requires a rigid examination to determine that it is not the 

 same. It does not inhabit the Southern States at least in the lower country. 



R. CAPITO. 



Above very rough, dark grey or slate-color speckled with black with six 

 rows of roundish spots on the back ; sides speckled and irregularly marked 

 with spots of the same form and color ; from the orbits to beyond the middle 

 of the body runs a broad raised line or cutaneous fold ; and another from 

 the corner of the mouth to the insertion of the arm. Beneath smooth, yellowish 

 white, speckled, spotted and varied with dusky ; top of the head coarsely punc- 

 tured, back and side3 tuberculous. Head very large, broad and blunt, a deep 

 concavity between the nostrils and the eyes. Irids golden mixed with black. 

 Tympanum of the color of the body. Lower jaw with a small protuberance or 

 point resembling a tooth. Arms and legs above grey, speckled and barred with 

 black ; beneath yellowish spotted and varied with dusky, the yellowish color 

 more decided at the axillae and groins. Hind part of the thighs granulate. Fingera 

 slightly palmate at the base, the first longer than the second. The second toe 

 twice a3 long as the first. 



Length 4-2 in., width of the head at the corners of the mouth 1-5 in., arm 1-87, 

 leg 4- , 75, thigh 1-1 in., tibia 1-45, foot 2 2. 



Inhabits Georgia in the ditches of the rice-fields. (Plate V.) 



