24, LIOLEMUS. 145 
7. Liolemus gracilis. 
Leiodera gracilis, part., Gray, Cat. p. 211. 
Proctotretus gracilis, Bell, Zool. Beagle, Rept. p. 4, pl. i. fig. 2; A. 
Dum. Arch, Mus. viii. p. 542. 
Ptychodeira gracilis, Girard, U.S. Explor, Exped., Herp. p. 841, 
pl. 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 
tour 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, smatler 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 uniformly 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 
tail, 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. 
Total length .......... 158 millim. 
Head............008- 13) 55 
Width of head ........ OF ss 
BODY aise senate cabs 48:5 bana 40 ,, 
Fore limb ............ 19 4; 
Hind limb............ 31 ,, 
Mad eanacria tale ats ecsooncis 105, 
Patagonia; Argentine Republic. 
a 3. Port Desire. C. Darwin, Esq. [P.]. (Type.) 
b. SS. Bahia Blanca. 
a So. Tucuman. 
8. Liolemus cyanogaster. 
Leioleemus cyanogaster, Gray, Cat. p. 212. 
Proctotretus cyanogaster, Dum. § Bibr. iv. p. 273; Bell, Zool. 
Beagle, Rept. p. 12, pl. v. fig. 2; Guichen. in Gay, Hist. Chile, 
Rept. p. 28, pl. ii. fig. 2; Dum. Voy. Venus, Zool. p. 292, pl. ii. 
fig. 2. 
Liolzemus (Liodeira) cyanogaster, Fitzing. Syst. Rept. p. 74. 
Proctotretus intermedius, Dem. 1. c. p. 290, pl. ii. fig. 1. 
Ptychodeira vyanogaster, Girard, U.S. Explor. Exped., Herp. p. 347. 
—— intermedia, Gerard, I. c. p. 348. 
VoL, Il. L 
