150 IGUANIDE. 
Proctotretus kingii, part., Bell, Zool. Beagle, Rept. p. 13, pl. vi. fig. 1. 
Rhytidodeira kingii, Girard, Proc. Ac. Philad. 1857, p. 198, and U.S. 
Lxplor, Exped., Herp, 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 4635 oat eee aes 20. 4 6455 
Width of head ........ IZ 4, 
BOOS? seish ots ce tis oe bard 60 ,, 
Fore limb: 05.4 ae 28 (Cy, 
Hind limb............ 43, 
Da aiiseitienea sien java’ 18%, 
Chili; Patagonia. 
a,b. 2 & yg. Port Desire. C. Darwin, Esq. [P.]. 
od, 4 i Port Desire. T. Bell, Esq. 4 (Types.) 
eo. P Haslar Collection. 
14. Liolemus fitzingeri. 
Leioleemus fitzingerii, Gray, Cat. p. 215. 
Proctotretus fitzingeri, part., Dum. § Bibr. iv. p. 286; Guichen. m 
Gay, Hist. Chile, Rept. p. 88. 
fitzingeri, Bell, Zool. Beagle, Rept. p. 11, pl. v. fig. 1. 
Ptychodeira fitzingeri, Fitzing. Syst. Rept. p. 73. 
Eulemus fitzingeri, Gérard, Proc. Ac. Philad. 1857, p. 198, and U.S. 
Explor, Exped., Herp. p. 365. 
—— affinis, Girard, ll. 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 
