392 -BrrLrBX, 



Sept. p. 86 ; Cope, Proc. Ac. PMlad. 1868, p. Ill ; Peters, Mon. 



Serl. Ac. 1871, p. 403. 

 Calamita marmoratus, Merr. Tent. p. 174. 

 Lophopus marmoratus, Tschudi, Batr. p. 73. 



Tongxie circular, free and slightly nicked behind. Vomerine teeth 

 forming a straight, transverse, interrupted series on a level with the 

 hinder edge of the choanae. Head broader than long ; snout very 

 short, scarcely longer than the diameter of the orbit, rounded ; 

 canthus rostralis absent ; interorbital space broader than the upper 

 eyelid; tympanum .very distinct, two thirds the diameter of the 

 eye. Pingers webbed to the dislis, which are as large as the tym- 

 panum; no projecting rudiment of pollex; toes rather short, webbed 

 to the disks ; latter a little smaller than those of fingers ; subartioular 

 tubercles very indistinct. The hind limb being carried forwards along- 

 the body, the tibio-tarsal articulation reaches the eye or a little 

 beyond. Upper surfaces slightly warty ; belly and lower surface of 

 thighs granulate ; a denticulated fringe along the outer side of 

 forearm and tarsus. Eeddish .brown above, marbled with dark ■ 

 brown ; hind limbs with dark cross bars ; lower surfaces bright 

 saffron, covered with small round black spots ; lower surface of 

 forearm, fingers, tibia, tarsus, and toes black; web black and 

 saffron. Male with an internal subgular vocal sac. From snout to 

 vent 52 millim. 



S. America. 



a-h. S ? • Ecuador. Mr. Buckley [0. 



c. 5 . Paitanga. -Mr. Buckley '0. 



d. (S . Canelos. Mr. Buckley [0. 



81. Hyla dasynotus. 

 Hyla dasynotus, Ounth. Froc. Zool. Soc. 1868, p. 488, pi. 38. f. 2. 



Tongue subcircular, nicked and slightly free behind. Vomerine 

 teeth in two small groups between the choanse, which are very 

 Bmall. Head small, as long as broad; snout short, as long as the 

 diameter of the orbit, rounded ; canthus rostralis indistinct ; loreal 

 region very oblique, slightly concave ; interorbital space as broad as 

 the upper eyelid ; tympanum rather indistinct, half the diameter of 

 the eye. Pingers half webbed ; no projecting rudiment of pollex ; 

 toes nearly entirely webbed ; disks as large as the tympanum ; sub- 

 articular tubercles small. The hind limb being carried forwards 

 along the body, the tibio-tarsal articulation reaches the eye. The 

 skin, from the fronto-parietals along the spine to the sacrum, im- 

 movable and rough with bony deposits; lower surfaces granulate; 

 an indistinct fringe along the outer edge of the forearm and 

 tarsus. Brownish above, the rough parts of a darker colour ; sides 

 of the abdomen marbled with black and white ; a black streak along 

 the canthus rostralis and above the tympanum ; a black spot ante- 

 riorly below the eye ; a dark cross band between the eyes ; femur 

 deep black, with white ovate spots or cross bars ; fore limbs and 



