11. ENYALIOIDES. 1 1«'5 



male with a black spot on the gular pouch. Erom snout to vent 

 138 millim. ; tail 172 millim. 

 Veragua. 



4. Enyalioides oshaughnessyi. 



Enyalius heterolepis {non Bocourt), Bouleng, Bull. Soc. Zool. France, 



1880, p. 43. 

 oshaughnessyi, Bouleng. Proc. Zool. Soc. 1881, p. 246, pi. xxvi. 



Head large, once and two thirds as long as broad ; canthus ros- 

 tralis and supraciliary edge angular, projecting ; nostril pierced 

 below the canthus rostralis, nearer the orbit than the tip of the 

 snout ; tympanum vertically oval, nearly as large as the eye-opening. 

 Upper head-scales small, strongly keeled ; a series of larger conical 

 scales above the temple ; a small but distinct occipital ; fourteen 

 labials. Male with a gular pouch ; gular scales keeled. Dorsal 

 and nuchal crests continuous, formed of very large conical scales, 

 gradually diminishing in height to the base of the tail, where it 

 becomes double aud soon vanishes ; the highest of these scales on 

 the neck measure more than the vertical diameter of the tympanum. 

 Scales of the back and sides small, smooth or slightly keeled, irre- 

 gularly intermixed with larger but not conical ones : a single lateral 

 series of conical scales, beginning at a small distance behind the ear, 

 and extending to the sacral region ; there are about twelve scales in 

 a vertical series between the dorsal crest and the lateral series, and 

 thirty between the latter and the belly ; ventral scales strongly 

 keeled. Scales on the limbs subequal, strongly keeled. A single 

 femoral pore on each side. Tail compressed, with rings of strongly 

 keeled scales of unequal size, forming regular segments. Dark 

 brown, with scattered greenish dots ; a light rounded spot behind 

 the ear ; throat greenish, gular fold black. 



Total length (tail injured) . . 310 millim. 



Head (to ear-opening) 43 „ 



Prom snout to vent 135 „ 



Fore hmb 72 „ 



Hind limb 95 „ 



Ecuador. 



5. Enyalioides microlepis. 



Euyalius laticeps («om Guidi.), (riinth. Proc. Zool. Soc. 1859, p. 407. 



microlepis, O'Shauyhn. Proc. Zool. Soc. 1881, p. '2'.jd, pi. xxiv. 



fig. 2. 



Head large, about once and one third as long as broad ; canthus 

 rostralis and supraciliary edge angular, projecting ; nostril pierced 

 below the canthus rostralis, nearer the orbit than the tip of the 

 snout ; tympanum vertically oval, nearly as large as the eye-opening. 

 Upper head-scales small, very convex, keeled or pointed ; large erect 

 scales above the temple ; occipital scarcely enlarged ; ten to twelve 



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