150 IGUANID^, 



Proctotretus kingii, part., Bell, Zool. Beagle, Rept. p. 13, pi. vi. fig. 1. 

 Hhytidodeira kingii, Girarcl, Proc. Ac, Philad. 1857, p. 198, atid U.S. 

 Explor. Exped., Her}}, p. 350, 



Nostril lateral. Upper head-scales moderate, smooth or rugulose ; 

 one or two small azygos frontals, separated from the interparietal by 

 a pair of fronto-parietals ; interparietal as large as or a little smaller 

 than parietals ; a series of four or five enlarged supraoculars ; a 

 single series of scales between the labials and the infraorbitals ; 

 temporal scales smooth ; one or two very small lobules in front of 

 the ear. Sides of neck with a longitudinal fold bifurcating towards 

 the ear ; a small curved antehumeral fold ; scales small, granular. 

 Dorsal scales small, rhomboidal. pointed, keeled ; lateral scales as large 

 or a little smaller ; ventral scales nearly as large as dorsals, smooth, 

 rounded; sixty-six to seventy-six scales round the middle of the body. 

 The adpressed hind limb reaches the shoulder in the male, the axil 

 in the female ; hinder side of thighs uniformly granular. Male with 

 six to eight anal pores. Tail about as long as head and body ; 

 caudal scales as large as dorsals. Brown above, with dark and light 

 transverse spots sometimes forming cross bands on the back ; these 

 may be interrupted by a light vertebral line. Lower surfaces 

 whitish, mottled or marbled with blackish, sometimes entirely 

 bluish-black. 



Total length 155 millim. 



Head 2(J „ 



Width of head 17 „ 



Body GO „ 



Fore limb 28 „ 



Hind limb 43 „ 



Tail 75 ,, 



Chili ; Patagonia. 



a,h. $ & yg. Port Desire. C. Darwin, Esq. [P.]. I ..p . 



r.,d. 6. Port Desire. T. Bell, Esq. [P.]. p^yP*^^-^ 



a, 



c, _ _ _ 



e. c? . ? Haslar Collection. 



14. Liolaemus fitzingeri. 



Leiolfemus fitziugerii, Grat/, Cat. p. 215. 

 Proctotretus fitzingeri, part., Bum. ^- Bihr. iv. p. 286 ; Guichen. in 



Gay, Hist. Chile, Bept. p. 38. 



fitzingeri, BeU.^ Zool. Beagle, Bept. p. 11, pi. v, fig. 1. 



Ptycbodeira fitzingeri, Fitziiig. Syst. Bept. p. 73. 



Eulsemus fitzingeri, Girard, Proc. Ac. Philad. 1857, p. 198, and U.S. 



Explor. Exped., Herp. p. 365. 

 affinis, Girard, II. cc. pp. 198, 365. 



Very closely allied to the preceding species, from which it differs 

 in a few points only : — Dorsal scales less strongly keeled and very 

 obtusely pointed (76 scales round the middle of the body). A patch 

 of enlarged rhomboidal scales on the hinder side of the thigh. Dark 



