154 IGUANID.E. 
dark olive above, the scales edged with lighter; lower surfaces 
olive or blackish. Young olive-brown, with transverse blackish 
markings ; lower surfaces whitish, throat marbled with grey. 
According to Cope, this species occurs in three varieties :— 1. Bright 
green, paler posteriorly, with two rows of large transverse black 
bars with irregular edges; head brownish above, pale-speckled ; 
lower surfaces olive. 2. Olive-brown above, with faint darker cross 
bands, pale-bordered behind; sides and below blue to whitish. 3. 
Light brown with a row of black spots on each side, divided by a 
longitudinal pale band; below yellowish, marbled with bluish. 
Total length .......... 175 millim. 
Head wacee sane wees 22) 55 
Width of head ........ 20 4; 
Body wseeacescedee whos 73 
Fore limb 33 vs aa04 oe 30a, 
Hind Jimb v3.33 e264 4 ws 51, 
Tail (reproduced) ...... 80 4; 
Andes of Peru. 
a-e. 3 & yg., not good state. Guascona. J. B. Pentland, Esq. [P.}. 
18. Liolaemus signifer. 
Leiolemus signifer, Gray, Cat. p. 214. 
Proctotretus signifer, Dum. § Bibr. iv. p. 288, pl. xxxix. fig. 2: Bell, 
Zool. Beagle, Rept. p. 8, pl. iv. fig. 1; Guichen. in Gay, Hist. Chile, 
Rept. p. 40. 
Ptychodeira signifera, Fitzing. Syst. Rept. p. 73. 
Euleemus signiter, Girard, Proc, Ac. Philad. 1857, p. 198, and U.S. 
Explor. Exped., Herp. p. 366. 
Nostril latero-superior. Upper head-scales small, smooth; no 
frontal ; interparietal smaller than parietals; six transverse supra- 
oculars; a single (or double) series of scales between the labials and 
the infraocular ; temporal scales smooth ; anterior border of ear with 
two slightly projecting small scales. Sides of neck granular, strongly 
folded. Dorsal scales very small, hexagonal, scarcely imbricate, feebly 
and tubercularly keeled ; lateral scales smaller still; ventrals much 
larger than dorsals, rounded, smooth ; seventy-eight scales round the 
middle of the body. The adpressed hind limb reaches between the 
shoulder and the ear; hinder side of thighs uniformly granular. 
Male with four anal pores. Tail a little longer than head and body ; 
caudal scales much larger than dorsals. Grey above, with small 
black undulate transverse markings arranged in four longitudinal 
series ; lower surfaces whitish, speckled with grey. 
Total length .......... 107 millim. 
Head wiesm tem cba cole Ws 
Width of head ..... 10g, 
Bay saa aeatuses es 33, 
