25. OREOSAURUS. 5 411 
edge of the collar. Forty-three scales from occiput to base of tail. 
Ventrals in ten longitudinal and twenty-two transverse scries. Ten 
to twelve femoral pores on each side. 
millim, millim. 
Total length ...... 188 From end of snout 
Head, cages g conus es 23 to vent ........ 92 
Width of head .... 11 Fore limb ....... . 27 
From end of snout to Hind limb........ 37 
fore limb ...... 34 Tail (reproduced).. 96 
Venezuela. 
3. Oreosaurus striatus. 
Eepleopus (Oreosaurus) striatus, Peters, lc. p. 201, pl. ili. fig. 2. 
Head short, body and limbs moderate. Frontonasal quadrangular, 
as long as broad ; frontal pentagonal, narrower than the frontonasal ; 
parietals and interparietal subequal in size, the latter hexagonal; a 
pair of occipitals; four supraoculars; no loreal; a row of large 
infraorbitals ; temple shielded; five or six upper and four or five 
lower labials ; chin-shields, one anterior and three pairs, the two 
first pairs in contact; nine or ten transverse rows of scales between 
the chin-shields and the edge of the collar; collar-shields eight. 
Dorsal scales quadrangular, keeled, about twice as long as broad; 
lateral scales smaller, convex, subgranular ; thirty-five scales round 
the middle of the body, ventrals included; thirty-five scales from 
occiput to base of tail. Ventrals large, quadrangular, in eight or 
ten longitudinal and twenty-three transverse series. [Males with 
six femoral pores on each side.] Caudal scales like those on the 
body. Light brown above, with a yellowish band on each side 
commencing from the supraciliary region, bordered on each side 
by a dark line; a more or less distinct dark median band ; lower 
surfaces whitish, black-spotted. 
millim. millim. 
Total length ...... 82 From end of snout to 
HS: (0 eee er 75 VON ca cacaaees 33 
Width of head .... 4:5 Fore limb........ 9 
From end of snout to Hind limb........ 12 
fore limb ...... 12 Tall. -sessena eeeeee 4D 
Sta Fé de Bogota. 
a, Her. Bogota. 
4. Oreosaurus petersii. 
Ecpleopus (Oreosaurus) petersii, Boetiger, Jahresb. Offenb. Ver. Nat. 
xvii-xvili. 1879, p. 9, pl. i. fig. 2. 
Head very short ; body elongate ; limbs short. Interparietal very 
large, seven-sided ; three occipitals, median smallest; three supra- 
oculars; no loreal. Scaling otherwise as in O. striatus. Thirty- 
