21. STENOCKRCCS. 133 



Fore limb 22 millim. 



Hind limb 33 



1) 



1) 



Tail 05 



Pampa-Ruiz, Province Laguna, Bolivia. 



2. Stenocercns torquatus. (Plate VIII. fig. 1.) 



No pterygoid teeth. Anterior border of ear tubercular. ]ilediau 

 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, rhoniboidal, 

 broader than long, keeled, not mucronatc. 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 21 „ 



Width of head 14 „ 



Body 59 „ 



Fore limb 33 „ 



Hind limb 47 ,, 



Tail 86 „ 



Peru. 



a. (S . Peru. 



3. Stenocercus roseiventris. 



Steuocercus roseiventris, Grai/, Cut. p. 21!*. 

 Stenocercus roseiventris, Dnin. l^- Bibr. iv. p. ooO ; UOrh. Vuy. Am, 



Mir. v. Rept. p. 8, pi. iv. tigs. 1-3. 

 Steironotus (Stenocercus) roseiventris, Fitziny. St/nt. liept. p. 71. 



Pterygoid teeth. No denticulation on the anterior border of the 

 car. Interorbital space slightly grooved. Supraocular region witli 

 five or six longitudinal series of scales, the two median of which arc 

 slightly broader than long ; occipital scale scarcely larger than the 

 surrounding ones. Sides of neck longitudinally folded. A vertebral 

 denticulation. Body subtriaiigular. Dorsal scales transversely rhom- 

 boidal. keeled, the keels obliipU'ly 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 



