.52 Mr. G. A. lioulonger ou 



220 circular folds, interrupted dorsally on the anterior half of 

 tiichody. Tail indistinct, rounded. i31ackisli ; lips yellovviali. 



Total length 600 niillini. ; greatest diameter of body 10. 



A single specimen from the Rio Lita, 3000 feet. 



Agalychnis calcarifer. 



Tongue oval, openly emarglnate behind. Vomerine teeth 

 in two short oblique series between the choanal. Head 

 moderately depressed, as long as broad ; snout rounded, not 

 projecting beyond the lower jaw ; canthus rostralis feeble ; 

 loreal region slightly concave ; interorbital space as broad as 

 the upper eyelid ; tym})anum close to the eye, half its 

 diameter. Fingers nearly entirely webbed, the disks larger 

 than the tympanum ; toes rather short, nearly entirely 

 webbed, the disks a little smaller than those of the fingers ; 

 subarticular tubercles very ])rominent. The tibio-tarsal 

 articulation reaches the tip of the snout. Skin smooth, 

 granular on the belly and in front of the vent ; a narrow 

 dermal fold along the outer edge of the forearm and tarsus ; 

 a truncate dermal Hap above the vent; heel with a large 

 triangular dermal flaj). Green above, this colour restricted 

 to a narrow band on the upper surface of the thighs; hands, 

 feet (with the excejjtion of part of the outer digit), arms, sides 

 of thighs, and lower parts bright yellow ; short black bars on 

 the flanks and limbs on the limit between the green and 

 yellow colours. 



From snout to vent 57 millini. 



A single female specimen from the Rio Durango, 350 feet. 



Hylodes suhsigillatus. 



Tongue oval, slightly nicked behind. Vomerine teeth in 

 two very short transverse series behind the choanae. Head a 

 little broader than long ; snout rounded, as long as the 

 diameter of the orbit, with distinct canthus ; nostril much 

 nearer the tip of the snout than the eye; loreal region con- 

 cave ; interorbital space as broad as the upper eyelid ; tympa- 

 num distinct, half the diameter of the eye. Fingers moderate, 

 first shorter than second ; toes rather short, free ; disks 

 large ; subarticular tubercles moderately developed ; a small 

 metatarsal tubercle. The tibio-tarsal articulation reaches 

 the eye. Skin of upyjer parts nearly smooth ; belly granular. 

 Brown above, tinged with crimson ; an oblique crimson streak 

 on each side of the upper surface of the head behind the eye, 

 directed towards its iellow behind ; a dark streak on the 



