Batrachians from the Andes of Ecuador, 455 



Liocephahs rhodomelas. 

 Upper head-scales small, obtusely keeled ; nasal separated 

 from the rostral ; no large supraoculars ; parietals broken up. 

 Sides of neck not plicate, covered with pointed, imbricate, 

 keeled scales. A well-developed dorsal crest. Dorsal scales 

 large, mucronate, strongly keeled, the keels formmg straight 

 longitudinal lines ; laterals quite as large; ventrals '^i little 

 smaller, smooth ; 45 scales round the middle of the body. 

 Gular scales nearly as large as dorsals. The hind limb, 

 stretched forwards, reaches the ear or the eye. Tail feebly 

 compressed, crested at the base only. Pale brown above, 

 with black chevron-shaped markings, pointing backwards, 

 across the back ; sides with small black spots; a more or less 

 marked black and white spot or ocellus above the fore limb; 

 loreal and subocular region cream-colour, the edge of the 

 mouth black; gular region cream- colour, streaked with 

 blackish, with a median black patch followed by a pink one ; 

 a black bar across the pectoral region, confluent with a black 

 stripe along the middle line of the belly, widening on the 

 pr^anal region and continued under the hind limbs ; sides ot 

 belly pink. These ventral markings absent in the young. 



Total length 232 millim. ; from snout to vent 87 ; head 20 ; 

 width of head 14 ; fore limb 34 ; hind limb 56. 

 Four specimens from Ofia, 6500 feet. 



I avail myself of this opportunity to observe that the 

 lizard from Mr. Simons's collection recently described by me 

 as Ameiva leucostigvia (P. Z. S. 1899, p. 517, pi. xxviii.) is 

 a Cnemidophorus, and is identical with C. letiUginosus, <cf arm. 

 (Bull. Essex Inst. xxiv. 1892, p. 92), as pointed out to me 

 by my friend Count Peracca. 



Prostherapis tricolor. 



Snout depressed, projecting, squarely truncate, as long as 

 the eye, with angular canthus rostralis and vertical loreal 

 region; 'nostril nearer the end of the snout than the eye; 

 interorbital space broader than the upper eyelid ; tympanum 

 perfectly distinct, its greatest diameter two thirds that of the 

 eye First finger not extending beyond second; toes free; 

 terminal disks and subarticular tubercles of fingers and toes 

 rather small; two small metatarsal tubercles. The tibio- 

 tarsal articulation reaches the eye when the hind limb is 

 stretched forwards. Skin smooth. Lemon-yellow; a black 

 lateral band, from the end of the snout to the groin, passing 

 through the eye and the tympanum ; another more or less 



