96 IGUANID^. 



Draconura nitzschii, Wiegm. Herp. Mex. p. 16. 



12-striata, Berthold, Ahh. Ges. Gotting, 1840, p. 62, pi. ii, 



Ljeinanctus (Norops) auratus, Fitzing. I. c. 



Norops macrodactylus, Halloxv. Proc. Ac. Philad. 1856, p. 222. 



Auolis (Dracontura) duodecimstriatus, Cope, Proc. Ac. Philad. 1861, 



p. 212. 

 Norops duodecimstriatus, O^Shcmqhn. Ann. Sf Mag. N. H. (4) iii. 



1869, p. 191, and iv. 1869, p. 274. 



Habit slender. Head nearly twice as long as broad, longer than 

 the tibia ; upper head-scales subequal, uni- or tricarinate ; occipital 

 enlarged, larger than the ear-opening ; five labials to below the 

 centre of the eye ; ear-opening oval, slightly oblique. Gular 

 appendage moderately large, slightly indicated in the female ; gular 

 scales keeled. Dorsal and ventral scales large, equal, rhomboidal, 

 imbricate, sharply keeled, the former in ten or twelve longitudinal 

 series ; lateral scales vezy small, keeled. The adpressed hind limb 

 reaches the eye, or between the latter and the ear ; digits not dis- 

 tinctly dilated. Tail more than twice as long as head and body, 

 covered with equal, sharply keeled scales. Golden brown above ; 

 a dark band, usually bordered inferiorly by a white one, extends 

 from the eye to the side of the body, passing above the ear; lower 

 surfaces yellowish ; the male's gular appendage dark blue or with a 

 bluish spot. 



Total length 180 millim. 



Head 14 



Width of head 7 



Body 36 



Fore limb 21 



Hind limb 37 



Tibia 11 



Tail 130 



South and Central America. 



2. Norops opMolepis. 



Anolis (Dracontura) ophiolepis, Cope, Proc. Ac. Philad. 1861, p. 211. 

 Norops ophiolepis, Bocourt, Miss. Sc. Mex., Rept. pi. xvi. tig. 34. 



Distinguished from the preceding chiefly in the following 

 points : — Scales on forehead larger ; occipital not larger than the 

 ear-opening. Dorsal scales forming eighteen longitudinal series. 

 Digits slightly dilated. Tail less than twice the length of head and 



