152 IGPANID^. 



Fore limb 25 millim. 



Hind limb 42 



Tail 117 



Chili. 



)5 





a-e. (S ) 2 > ^ ^S^- Chiloe. Dr. Cunningham [C.]. 



/. $. Valparaiso. C. Darwin, Esq. [P.]. 



ff, h. 2 & yg- Chili. C. Darwin, Esq. IP.]. 



i'l. d 2 • Chili. 



Var. major, 



Leiolsemus 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. 



Head 24 



Width of head 19 



Body 80 



Fore limb 40 „ 



Hind limb 65 ,, 



Tail (reproduced) 140 „ 



a-b, c. (S & hgr. Chili. 



Proctotretus niger. Hallow. Proc. Ac. Philad. 1856. p. 233, is 

 probably also a variety of L. pictus : — Very dark brown, or black 

 above ; a very narrow and somewhat indistinct yellow band, com- 

 mencing 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. Liolsenius tenuis, 



Leiolsemus tenuis, Grai/, Cat. p. 213. 



maculatiis, Gray, I. c. 



Proctotretus tenuis, Dtim. S)- Bilr. iv. p. 279; Bell, Zool. Beagle, 



Rept. p. 7, pi. iii. tig. 2; Hombr.S)- Jacq. in Dum. cTUrv. Voy. Pole 



Sud, Rept. pi. ii. bis. fig. 2 ; Guichen. in Gay, Hist, Chile, Rept. 



p. 32, pi. i. fig. 1 ; Girard, in Gillis, U.S. Nav. Astron. PJxped. ii. 



p. 217, pi. xl. figs. 1-4. 

 Liolfemus (Liodeira) tenuis, Fitziny. Syst. Rept. p, 74. 

 Eulsemus tenuis, Gh-ard, Proc. Ac. Philad. 1857, p. 198, and U.S. 



Explor. Exped., Herp. p. 358, pi. xxviii. figs. 9-16. 

 Liolsemus (Ptychodeu'a) tenuis, Steindachn. Novara, Rept. p. 37. 



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



