152 IGUANIDE. 
Fore limb ............ 25 millim. 
Hind limb....... peers AQ 55 
Vaal): givevigess eae gees os 117_—=C*#,, 
Chili 
a-e. & her. Chiloe. Dr. Cunningham [C.]. 
; = ae Valparaiso. C. Darwin, tsa. bi 
gh. 2 & yg. Chili. C. Darwin, Esq. [P.]. 
Hl 6 Q. Chili, 
Var. major. 
Leiolemus tenuis, part., Gray, Cat. p. 214. 
Much larger than the typical form. Sixty-six to seventy scales 
round the middle of the body. Two or three projecting pointed 
scales in front of the ear in the adult. Black or bluish-black, with 
a few small irregular lighter spots on the upper surfaces. 
Total length .......... 244 millim. 
ead: coc nace dione ine gene 24. —(««, 
Width of head ii ADE. gy 
BOdY aicagnecco says 80. C—, 
Fore Lith) s404. saasaea ns 40 ,, 
and Mig see sgt got theta 65, 
Tail (reproduced) ...... 140 __,,. 
a-b,c. & & her. Chili. 
Proctotretus niger, Hallow. Proc. Ac. Philad. 1856, p. 233, is 
probably also a variety of Z. pictus :—Very dark brown, or black 
above; a very narrow and somewhat indistinct yellow band, com- 
meucing at the axilla and extending along the flanks; a broader 
brownish one and less distinct above ; underparts bluish mingled 
with copper colour, with metallic reflections ; chin and throat con- 
spicuously black-spotted, the larger spots in front; minute black 
dots distributed over abdomen and under surface of extremities. 
Total length 82 millim. 
Quinquina Island. 
16. Liolemus tenuis. 
Leioleemus tenuis, Gray, Cat. p. 218. 
—— maculatus, Gray, 1. ¢. 
Proctotretus tenuis, Dun. § Bibr. iv. p. 279; Bell, Zool. Beagle, 
Rept. p. 7, pl. iii. fig. 2; Hombr. §& Jacg. in Dum. & Urv. Voy. Pole 
Sud, Rept. pl. ii. bis. fig. 2; Guichen. in Gay, Hist. Chile, Rept. 
p. 82, pli.fig. 1; Grrard,in Gillis, U.S. Nav. Astron. Exped. ii. 
p. 217, pl. xl. figs. 1-4. 
Liolemus (Liodeira) tenuis, Fitzing. Syst. Rept. p. 74. 
Eulemus tenuis, Girard, Proc. Ac. Philad. 1857, p. 198, and U.S. 
Explor, Bxped., Herp. p. 358, pl. xxviii. figs. 9-16. 
Liolemus (Ptychodeira) tenuis, Steindachn. Novara, Rept. p. 37. 
Nostril sublateral. Upper head-scales rather small, smooth; a 
