414 TEIID^. 



twelve femoral pores on each side, one or two of which may be termed 

 proeanal ; only two pr;ieaual and one or two femoral pores on each 

 side iu 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 133 From end of snout 



Head 13 to vent 63 



Width of head 8-5 Fore limb 13 



From end of snout Hind limb 17 



to fore limb 23 Tail 75 



Ecuador. 



a. J. W.Ecuador. Mr. Eraser [0.]. (Type.) 



b-c, d-e. (S . W. Ecuador. Mr. Eraser [C.]. 



f-ff. (S . Intac. Mr. Bucklev [C.]. 



A-yfc. c?2- Hacienda de Ollalla, Edw.Whvmper.Esq.rC.l. 



8490 feet. 



l~o. d , $ , & yg. Chillo, 9000 feet. Edw. Whymper Esq. [C.]. 



3. Proctoporus simoterus. (Plate XXII. fig. 1.) 



Emphrassotis simoterus, O'Shau^hn. Ann. ^ Mag. N. H. (5) iv. 1879, 

 p. 290. 



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 is so 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 ; parietals large ; interparietal 

 narrow, wedge-shaped, extending posteriorly beyond the parietals ; 

 a very large lateral occipital on each side ; no median occipital ; 

 four supraoculars ; a row 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 

 largo ; 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 Hue ; 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. Prasanals 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. 



