t . 



24. LioLjiMus. 145 



Liolaemus gracilis. 



Leiodera gracilis, part., Gray, Cat. p. 211. 

 Proctotretus gracilis, Bell, Zool. JBeaffle, Rept. p. 4, pi, i. fig. 2 ; A, 



Dam. Arch. Mus. viii. p. 542. 

 Ptychodeira gracilis, Girard, U.S. E.cplor. Exped,, Herp. p. .341, 



pi. xvii. figs. 22-28. 



Nostril lateral. Upper head-scales rather large, smooth ; an 

 azygos frontal, separated from the interparietal by a pair of fronto- 

 parietals ; interparietal smaller than parietals ; a series of three or 

 four enlarged supraoculars ; a single series of scales between the 

 labials and the infraorbital ; temporal scales feebly keeled ; two or 

 three small projecting scales on the anterior border of the ear. 

 Sides of neck with a very indistinct longitudinal fold, the scales 

 imbricate, keeled, pointed, smaller than those on the upper surface. 

 Dorsal scales large, rhomboidal, strongly keeled, pointed, the keels 

 forming continuous longitudinal lines ; ventral scales smaller, 

 rounded, smooth ; forty scales round the middle of the body. The 

 adpressed hind limb reaches halfway between the shoulder and the 

 ear; hinder side of thighs uniformlj' granular. Four anal pores. 

 Tail about twice as long as head and body ; caudal scales nearly as 

 large as dorsals. Pale greyish olive above, uniform, or with small 

 blackish dots on the sides ; two light yellowish streaks on each side, 

 the upper extending from the supraciliary edge to the base of the 

 taU, the lower from the eye to the hind limb, passing on the upper 

 border of the ear; a light line along the hind side of the thighs; 

 lower surfaces whitish, throat mottled with brown. 



rp 



Total length 158 millim. 



Head 13 „ 



Width of head 



Body 40 „ 



Fore limb 19 „ 



Hind limb 31 „ 



Tail 105 „ 



Patagonia ; Argentine Republic. 



a. c?. Port Desire. C. Darwin, Esq. [P.]. (Type.) 



b. c? . Bahia Blanca. 



c. (S . Tucuman. 



8. LiolaBmus cyanogaster. 



Leiolpemus cyanogaster, Gray, Cat. p. 212. 

 Proctotretus cyanogaster, Dum. 8f Bihr. iv. p. 27'5 ; Bell, Zool. 

 Beayle, liept. p. 12, pi. v. fig. 2; Guirhen. in Gay, Hist. Chile, 

 Rept. p. 28, pi. ii. fig. 2; Diim. J'oy. Venus, Zool. p. 292, pi. ii. 



fig. 2. ; 



Lioliieraus (Lindoira) cyanogaster, Fdzinrf. Sysf. Rept. p. 74. 

 Proctotretus intcrmedius, Ihim. I. c. p. 2!»0, pi. ii. fig. 1. 

 Ptychodcira cyanogaster, Girard, U.S. Explor. Exped., Herp. p. 347. 



intermedia, Girard, I. c. p. .348. 



VOL. II. L 



