146 IGI7ANID.E. 



Nostril lateral. Upper head-scales rather small, striated ; inter- 

 orbital scales in one or two rows ; interparietal small ; parietals usually 

 indistinct, if distinct larger than interparietal ; a series of four or five 

 enlarged supraoculars ; a single series of scales between the labials 

 and the infraorbitals ; temporal scales feebly keeled ; one or two 

 small scales project very slightly on the anterior border of the ear. 

 Sides of neck covered with very small scales, with a strong longi- 

 tudinal fold bifurcating towards the ear ; a cui'ved antehumeral 

 fold. Dorsal scales large, rhomboidal, strongly keeled, ending in a 

 sharp point or macro ; ventral scales a little smaller, rounded, 

 smooth ; forty scales round the middle of the body. The adpressed 

 hind limb reaches the axil in the female, the ear or slightly beyond 

 in the male ; hinder side of thighs uniformly granulate. Male with 

 two anal pores. Tail once and a half to twice as long as head and 

 body ; caudal scales nearly as largo as dorsals. Olive or coppery 

 brown above, with a few small blackish spots, and a light latero- 

 dorsal band ; lower sxirfaces with strong metallic gloss, the throat 

 and breast greenish or blue-green. 



Total length 142 miUim. 



Head 15 „ 



Width of head 11 „ 



Body. 42 „ 



Fore limb 25 ,. 



Hind limb 40 „ 



Tail 85 „ 



Chili. 



a. 5 . Valparaiso. C. Darwin, Esq. [P. 



b-c. (S & hgi-. Valdivia. C. Darwin, Esq. [P.' 



9. Liolaemus bibronii. 



Leiolsemus bellii, Gi-ai/, Cat. p. 212. 



bibronii, id. I. c. 



— liiieatus, id. I. c. p. 213. 



Proctotretus bibronii, Bell, Zool. Beagle, Rept. p. 6, pi. iii. fig. 1. 

 Rhytidodeira bibroni, Gtrard, Troc. Ac. Philad. 1857, p. 198, and 

 U.S. E.viil. E.vped., Ilerp. p. 352. 



Nostril lateral. Upper head-scales rather small, smooth ; a small 

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

 parietals ; interparietal as large as, or a little smaller than, the 

 parietals : a series of three enlarged supraoculars ; a single series of 

 scales between the labials and the infraorbital ; temporal scales 

 indistinctly keeled ; car-opening with a very indistinct denticulation 

 in front. Sides of neck covered with very small scales, with an 

 irregular longitudinal fold; a curved antehumeral fold. Dorsal 

 scales moderate, rhomboidal, strongly keeled, ending in a sharp 

 point ; ventral scales nearly as large, but rounded and smooth ; fifty 

 to fifty-eight scales round the middle of the body. The adpressed hind 

 limb reaches the axil in the female, in front of the shoulder in the 

 male ; hinder side of thighs uniformly granulate. Male with two 



