ADDENDUM. 473 
ADDENDUM. 
oo ge 
Page 117. Add a new species :— 
7. Enyalioides leechii. 
In habit very similar to Znyalius catenatus, but the digits strongly 
keeled and pectinate inferiorly and distinctly denticulated laterally. 
Nostril below the canthus rostralis, much nearer the end of the snout 
than the orbit. Upper head-scales small, equal, strongly keeled ; 
occipital a little enlarged; a few longitudinal rows of strongly 
keeled supraoculars, smaller than the scales on the vertex, surrounded 
by smaller granular ones; twelve or thirteen upper aud eleven lower 
labials. Gular scales small, granular, obtusely keeled. Dorso-nuchal 
crest quite indistinct (anomalous?). Dorsal scales small, granular, 
keeled, laterals smaller still, obtusely keeled; ventrals much larger, 
squarish subrhomboidal, very strongly keeled. Limbs long, covered 
with equal strongly keeled scales, the hind side of the thighs finely gra- 
nulate ; the adpressed hind limb reaches beyond the end of the snout ; 
the length of the tibia equals the distance between the end of the snout 
and the gular fold. Tail scarcely compressed, not crested, covered 
with subequal keeled scales, which are largest inferiorly ; its length 
about once and two thirds that of head and body. Chestnut-brown 
above; a black line from the eye to the fore limb, passing on the 
lower border of the tympanum ; a short yellowish streak on each 
side of the nape; a triangular yellowish spot, pointing towards its 
fellow, above each shoulder; limbs with rather indistinct darker 
and lighter cross bands ; lower surfaces brownish ; an oblique arrow- 
headed dark-brown marking on each side of the throat; tail with a 
series of large, elliptical, longitudinal, blackish spots above and 
inferiorly, some confluent and forming rings. 
millim. millim 
Total length ...... 292 Fore limb........ 53 
Head avdew ees oes 26 Hind limb........ 109 
Width of head .... 20 MPa) save aniek eee Y 185 
Body -ecew sess ees 81 
Upper Amazons. 
a &. Santarem. J. H. Leech, Esq. [C.]. 
VOL. II. 21 
