414 TEIIDE. 
twelve fomoral pores on each side, one or two of which may be termed 
preanal; only two preanal and one or two femoral pores on each 
side in the females. Dark brown above, uniform or dotted with 
black; a more or less distinct short light line or series of light dots 
on each side on the neck and anterior part of the body; lower sur- 
faces blackish or lead-coloured; throat and lower surface of tail 
generally variegated with whitish. 
millim. millim. 
Total length .... . 138 From end of snout 
Head. 2 octets 13 to vent ........ 63 
Width of head .... 85 Fore limb ........ 13 
From end of snout Hind limb........ 17 
to fore limb .... 23 MO sete ston tae ode a 75 
Ecuador. 
a. . W. Ecuador. Mr. Fraser [C.]. (Type.) 
b-c,d-e. 3. W. Ecuador. Mr. Fraser tet 
fg. d. Intac. Mr. Buckley [C.]. 
A-k. 3 Q. Hacienda de Ollalla, Edw. Whymper, Esq. [C.], 
8490 feet. 
Lo. 3,2,& yg. Chillo, 9000 feet. Edw. Whymper Esq. [C.]. 
3. Proctoporus simoterus. (Prare XXII. fig, 1.) 
Emphrassotis simoterus, O'Shaughn. Ann. § Mag. N. H. (5) iv. 1879, 
p. 296. 
The unique specimen is evidently anomalous in its head-shields, 
and this is the cause of the absence of frontoparietals and loreal, 
mentioned in the original description; this isso much the more certain 
as traces of sutures still indicate the normal position of the missing 
shields. Head short and thick, snout very short, rounded; body 
elongate, limbs weak. Frontonasal quadrangular, longer than 
broad; frontal of nearly the same size ; purietals large ; interparietal 
narrow, wedge-shaped, extending posteriorly beyond the parietals ; 
a very large lateral occipital on each side; no median occipital; 
four supraoculars ; arow of rather large infraorbitals, fourth largest, 
between three labials; temporal shields very large; upper labials 
five or six, last very large, penultimate very small; four lower 
labials ; chin-shields, one anterior and four pairs, the two first pairs 
in contact; gular scales large, quadrangular, anterior row very 
large; eight transverse rows of plates between the chin-shields and 
the edge of the collar; collar-shields eight, large, elongate. Dorsal 
scales elongate-quadrangular, perfectly smooth, the transverse series 
interrupted on the median dorsal line; thirty-four scales from 
occiput to sacrum inclusively; thirty-six scales round the middle of 
the body. Ventrals broader, but not longer than dorsals, in twelve 
longitudinal and twenty-two transverse series. Praanals in two 
transverse rows, the anterior composed of a pair of quadrangular 
shields, the posterior of five elongate shields, of which the median 
and the outer are very narrow. Limbs with large smooth shields. 
