21. srenocerRcus. 133 
Fore limb ............ 22 millim. 
Hind limb ............ 33, 
MDA aici Awa Wanna 3 65 
” 
Pampa-Ruiz, Province Laguna, Bolivia. 
2. Stenocercus torquatus. (Pxuate VIII. fig. 1.) 
No pterygoid teeth. Anterior border of ear tubercular. Median 
supraocular scales slightly broader than long ; occipital indistinct. 
Sides and lower surface of neck irregularly folded. Body subtrian- 
gular. No dorsal denticulation. Nuchal, lateral, and anterior dorsal 
scales very small, subgranular, obtusely keeled ; on the posterior half 
of the back the scales become gradually much larger, rhomboidal, 
broader than long, keeled, not mucronate. Gular scales granular ; 
ventrals rhomboidal, imbricate, smooth, much larger than the ante- 
rior dorsals, but smaller than the posterior. The adpressed hind 
limb reaches the antehumeral fold ; fifth toe reaching as far as second. 
Tail scarcely longer than head and body, feebly compressed, with 
whorls of large spinose scales. Upper surfaces and throat dark olive; 
a black transverse band on the dorsal surface from one antehumeral 
fold to the other; pectoral region blue; belly pinkish white. 
Total length ......... 166 millim. 
Head! x32 sence acs dew. Ad, 5 
Width of head ........ 4s, 
Body sedvsnevd sears 59, 
Fore limb ............ 33 Ci, 
Hind limb....... ieee AE Gy 
ale) Ageing reees ead Mentha 86 CO, 
Peru. 
a oo. Peru. 
3. Stenocercus roseiventris. 
Stenocercus roseiventris, Gray, Cat. p. 219. 
Stenocercus roseiventris, Dum. § Bibr. iv. p. 860; D'Orb. Voy. Am. 
Mer. v. Rept. p. 8, pl. iv. figs. 1-3, ; 
Steironotus (Stenocercus) roseiventris, Fitzing. Syst. Rept. p. 71. 
Pterygoid teeth. No denticulation on the anterior border of the 
ear. Interorbital space slightly grooved. Supraocular region with 
five or six longitudinal series of scales, the two median of which are 
slightly broader than long; occipital scale scarcely larger than the 
surrounding ones. Sides of neck longitudinally folded. A vertebral 
denticulation. Body subtriangular. Dorsal scales transversely rhom- 
boidal, keeled, the keels obliquely converging towards the median 
line: lateral and ventral scales smooth. The adpressed hind limb 
reaches the ear; fifth toe not extending as far as second. Tail a 
