124 IGUANID^. 



Brazil. 



Ujh. c? 5 • Brazil. 



c-d. (S 2- Rio Grande do Siil. Dr. v. Hiering [C.]. 



2. Urostrophus torquatus. 



Leiosaurus torquatus, Philippi, Arch. f. Nat. 1861, p. 295. 



Head larger and more convex than in the preceding species ; 

 tympanum much larger than the eye-opening ; occipital slightly 

 enlarged, not measuring half the vertical diameter of the tympanum. 

 Body slightly compressed ; dorsal scales minutely granular ; ventrals 

 much larger, flat, hexagonal, subimbricate. Limbs long, the ad- 

 pressed hind limb reaching nearly the posterior border of the orbit. 

 Tail not curly, measuring about once and a half the length of 

 head and body, covered with rings of small smooth scales. Greyish 

 olive, lighter interiorly ; gular fold black. 



Total length 235 millim. 



Head 25 



Width of head 19 



Body 65 



Fore limb 42 



Hind limb 66 



» 



5i 



Tan 145 „ 



Chili. 

 a. fS- Chili. 



15. LIOSAURUS*. 



Leiosaurus, part.,D«<wi. ^ Bib)\ iv. p. 241 ; Fitzing. Syst. Rept. p. 58 ; 

 Gray, Cat. Liz. p. 224 ; Bocourt, Miss, Sc. Mex., Rept. p. 152. 



Tympanum distinct. Body depressed, covered with small smooth 

 scales, granular on the back ; no dorsal crest. Upper head-scales 

 small. A transverse gular fold ; no gular pouch. Digits slightly 

 depressed, with smooth lamelloe inferiorl}'. No femoral pores. Tail 

 moderately long, round. Lateral teeth tricuspid ; pterygoid teeth. 

 No sternal fontanelle. Abdominal ribs. 



South America. 



1. Liosaurus bellii. 



Leiosaurus bellii, Gray, Cat. p. 224. 

 Leiosaurus bellii, Dum. ^- Bihr. p. 242, pi. xxxi. fig. 1 ; A. Dum. 

 Arch. Mns, viii. pi. xxii. tig. 2 ; Bocourt, I. c. p. 152, pi. xvii. bis. 

 fig. 3. 



* ? Leiosaxrus scapulatus, Burineister, Reise La Plata, ii. p. 522. — Sierra de 

 UspaRata, 5000 ft. 



