24, LIOLEMUS. 155 
Fore limb ............ 19 millim. 
Hind inh gan aes dauee 29°~=(«« 
Dail a3 eens aaah G2 55 
Chili. 
ao. Chili. 
19. Liolemus darwinii. 
Leioleemus darwinii, Gray, Cat. p. 216. 
Proctotretus darwinii, Bell, Zool. Beagle, Rept. p. 14, pl. vii. 
Euleemus darwini, Girard, Proc. Ac. Philad. 1857, p. 1938, and U.S. 
Explor. Exped., Herp. p. 361, pl. xvii. figs. 8-14. 
? Proctotretus melanopleurus, Philipp?, Reise Atacama, p. 166. 
Nostril latero-superior. Upper head-scales small, convex, smooth ; 
interparietal smaller than parietals; a series of five to seven trans- 
verse supraoculars ; a single series of scales between the labials and 
the infraorbital; temporal scales smooth; anterior border of ear not 
distinctly denticulated. Sides of neck granular, strongly folded ; a 
curved antehumeral fold. Dorsal scales moderate, rhomboidal, ob- 
tusely pointed, strongly keeled, the keels forming continuous longitu- 
dinal lines; lateral scales smaller than dorsals; ventrals nearly as large 
as dorsals, obtusely pointed, smooth ; fifty-two to sixty scales round 
the middle of the body. The adpressed hind limb reaches the axil 
in the female, between the shoulder and the ear in the male; hinder 
side of thighs with a patch of rhomboidal keeled scales. Male with 
seven anal pores. Tail nearly once and a half as long as head and 
body; caudal scales as large as dorsals. Pale greyish brown above, 
with a series of transverse blackish spots on each side of the vertebral 
line, each of which is followed by a more or less distinct whitish 
spot or border; a more or less distinct light streak on each side of 
the back, and, in the female, another, edged with black, extending 
from axil to groin; a black spot above the shoulder and another in 
front of the arm; a white, black-edged streak on the hinder side of 
the thighs. Lower surfaces white, uniform or spotted with blackish. 
Total length .......... 125 millim. 
Heady. co scin eters tr epstves 12. —=«« 
Width of head ........ 10: ;, 
BOY 15 Swi snptchoudineshesate site 38 C,, 
Fore limb ............ TO os 
Hind limb ............ 31g, 
Dal asda: Ko ES Rs TD os; 
Northern Patagonia; Mendoza. 
a-b. SQ. Bahia Blanca. C. Darwin, Esq. [P.]. 
(Types.) 
ce-d. 3 2. High Pampas of 8. Luis, E. W. White, Esq. [C]. 
Mendoza. 
e. Her. Mendoza. 
