244 
MR. A. W. E. 0*SHAUGHKESSY ON 
[Feb. 
species is unrepresented in tbe British Ma^eum^ as Bibroii's suppo- 
sitiou of its identity willi L. carinatus appears to have been incorrect, 
altliongh very confidently expressed, The description indicates, 
bovvever, a cephalic scutellation totally different from the prei§ent 
Bpecies, a very nmch higher crest, and other conspicuous points 
of differeoce. The scales on the top of the muzzle in the present 
species are quite large, only about 10 irt uismber, and not keeled, 
instead of the 30 very small keeled ones mentioned by Bibrou. 
23. LEiocEPeAi.ua trachvckpbalus. 
LeioceiihahiJi trachjcepkalus, Dum. Cat. Mdtb. Kept. 1851, p. 70 ; 
Arch, Mus. viii. p. ,')3i», pi, 23. fig. 1. 
One specimen from Sarayacu, Ecnador. There are now numerous 
specimens in the Brhiah Museum which I have recognized as of 
this species j the figure of the entire lizurd, however, evidently a very 
bad one, shows little resemblance to them. 
24- HoPLoCERCus ANNUL A HIS, Bp. n. (Plate XXV. fig. 2.) 
Scales on snout convex, granular, similar and nearly uniform on 
the other parts of the head, excepting the supraorbital spaces, where 
they are larger and rounded or polygonal. The upper surface of 
the body is covered with a groundwork of small granular scales, 
with tubercles in several complete longitudinal rows from the nape 
to the root of tlie tail, more closely set along the median line of the 
back ; series of tubercles also descend vertically on the aides. Scales 
of the belly rather small, but regularly tessellated. Supralabials 
nine. Infralabials ten. Limbs etrongfy tuhercnlar. Tail longer 
than head and body, cyhndrical, and surrounded at regular and 
rather close intervals throughout its entire length by complete rings 
of projecting tubercles or spinous scales. A series of two or three 
very large itmoral pores on each thigh. Teeth trilobate. 
Brown, with transverse dark bars on the back. An oblique yellow 
black -horde red stripe in front of the fore limb. A large yellow spot 
on the uppersidc of the thigh. 
milbm. 
Total leuKth . . .... 132 
Length of head to ear-opening 16 
Distance from tip of snout to fore limb 27 
» M vent . . .... 59 
Length of fore limb .... 24 
„ third and fourth fingers . , 8 
„ hind limb , , 40 
„ fourth toe 14 
A single specimen, evidently yonug, as i»hown by an external 
groove indicating imperfect sy mphysis of the lower jaw, was ob- 
tained from Caneloa. It is a very interestiug form, which, on 
account of the total dissimilarity of its tail, might have been sepa- 
rated generirally from Ucplocerctts «pinosits. I can, however, detect 
no other grounds for such separation ; and as I have lately found a 
