36 IGTJANID^. 



16. Anolis acutus. 



Anolis acutus, Hallotv. Proc. Ac. Philad. 1856, p. 228 ; Cope, Proc. 

 Ac. Philad. 1861, p. 209 ; Reinh. Sf Liltk. Vidensk. Meddel. 1862, 

 p. 252 ; Bocotirt, Miss. Sc. Mex., Eept. pi. xv. fio;. 2. 



newtoni, Gimth. Ann. ^ Mag. N. II. (3) iv. 1859, p. 212, 



pi. iv. fig. A. 



Head moderate, nearly once and three fourths as long as broad, 

 longer than the tibia ; forehead and occiput concave in the male ; 

 frontal ridges distinct ; upper head-scales smooth ; scales of the 

 supraorbital semicircles very large, in contact with each other and 

 with the occipital, the size of which equals or exceeds that of the 

 ear-opening ; the supraorbital series produced forwards as frontal 

 series ; six to ten enlarged, keeled supraocular scales, separated 

 from the supraorbitals by one row of granules ; canthus rostralis 

 angular, canthal scales four ; lorcal rows four to six ; six labials to 

 below the centre of the eye ; ear-opening moderate, vertically oval. 

 Gular appendage moderately large, indicated in the female ; gular 

 scales obtusely keeled. Body compressed, scarcely in the female ; a 

 slight dorso-nuchal fold. Dorsal scales small, granular, much en- 

 larged, rhomboidal and strongly keeled on the vertebral region ; 

 ventral scales nearly as large as vertebrals, subhexagonal, imbricate, 

 distinctly keeled. Limbs moderate ; the adpressed hind limb reaches 

 the eye or slightly beyond ; digital expansions well developed ; 

 twenty-one to twenty-four lamellae under phalanges ii. and iii. of 

 the fourth toe. Tail strongly compressed, covered with unequal- 

 sized keeled scales forming distinct segments, with a strong unequally 

 ■ serrated upper ridge ; its length not twice that of head and body. 

 Male with enlarged postanal scales. Greenish-olive or brownish 

 above, uniform or dotted with brown ; a brown band along the 

 posterior side of the thighs in the female ; latter sometimes with a 

 light vertebral band crossed by narrow black bars ; lower surfaces 

 whitish, with metallic gloss. 



Total length 165 millim. 



Head 18 „ 



Width of head 10 „ 



Body 42 „ 



Tore limb 26 „ 



Hind limb 46 



Tibia 15 „ 



Tail 105 „ 



fc>t. Croix, West Indies. 



a-i, c-d, e. J 5 , St. Croix. A. and E. Newton, Esqrs. [P.]. 



(Types of A. newtoni^ 

 f-i, k-I. d . St. Croix. Hr. Riise [C.]. 



