11. ENYALIOIDES. 115 
male with a black spot on the gular pouch. From 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, pl. 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 and soon vanishes; the highest of these scales on 
the neck measure more than the vertical diameter of the tympanum. 
Seales 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, 
From snout to vent ........ 185g, 
Fore limb .............00. 72. 3; 
Hind limb os: aiesvses gee sa 95 5; 
Ecuador. 
5. Enyalioides microlepis. 
Enyalius laticeps (non Geich.), Gtinth. Proc, Zool. Soc, 1859, p. 407. 
—— microlepis, O’Shaughn. Proc. Zool. Soc, 1881, p. 238, pl. 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 
12 
