410 TEIID^. 



IT. No loreal. 



Four supraoculars 3. striatus, p. 411. 



Throe supraoculars 4. petersii, p. 411. 



1. Oreosaurus oculatus. (Plate XX. fig, 2.) 



Ecpleopus oculatus, O'Shaughn. Ann. ^ Mag. N. II. (5) iv. 1879, 

 p. 297. 



Head rather elongate ; body moderately elongate ; limbs well 

 developed. Frontonasal quadrangular, longer than broad ; frontal 

 trapezoid, anteriorly as broad as the frontonasal ; frontoparietals 

 forming a long suture ; parietals rather small ; interparietal nearly 

 as large, hexagonal, narrower anteriorly ; a pair of occipitals ; four 

 supraoculars ; a loreal ; a row of large infraorbitals : temple shielded; 

 six upper labials, posterior largest ; five lower labials ; chin-shields, 

 one anterior and four pairs, the two first pairs forming a suture ; 

 these are followed by large, irregular hexagonal gulars ; the other 

 gulars quadrangular, increasing in size towards the collar-shields, 

 which are largest and eight in number ; seven transverse rows of 

 quadrangular gulars, including collar. Dorsal scales quadrangular, 

 keeled, about twice and a half as long as broad ; lateral scales much 

 smaller, half as long, also quadrangular and keeled ; fortj'-one 

 scales round the middle of the body, including ventrals ; thirty-five 

 scales from occiput to base of tail. Yentrals large, quadrangular, 

 smooth, forming ten or twelve longitudinal and twenty transverse 

 series. Prasanals seven, an anteiior pair and five shields in the 

 posterior row. Limbs with large smooth shields ; tibia above 

 with keeled scales ; lower surface of arm and hinder side of thighs 

 granulate. Five or six femoral pores on each side. Caudal scales 

 like those on the body. Brown above, with a lighter, dark -edged 

 band on each side, commencing from the eye ; a series of black ocelli 

 with white centre along each side ; gular and ventral scales black in 

 the middle, white on the edges, forming black and white longitudinal 

 bands. 



luillira. millim. 



Total length (tail broken) 100 From end of snout to 



Head 15 vent 63 



Width of head 9 Fore limb 20 



From end of snout to fore Hind limb 29 



limb 27 



Ecuador. 

 a. S' Iiitac. Mr. Buckley [C] (Type.) 



2. Oreosaurus luctuosus. 

 Ecpleopus (Oreosaurus) luctuosus, Peters, I. c. p. 203. 



Apparently closely allied to the preceding. Eight or nine trans- 

 verse rows of scales between the enlarged anterior gulars and the 



