36 IGUANIDE. 
16. Anolis acutus. 
Anolis acutus, Hallow. Proc. Ac. Philad. 1856, p. 228; Cope, Proc. 
Ac. Philad. 1861, p. 209 ; Reinh. § Liitk. Vidensk. Meddel. 1862, 
p. 252; Bocourt, Miss. Sc. Mex., Rept. pl. xv. fig. 2. 
— newtoni, Giinth. Ann. § Mag. N. H. (8) iv. 1859, p. 212, 
pl. 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; loreal 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 1. and u1. of 
the fourth toe. Tail strongly compressed, covered with uncqual- 
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 surfuces 
whitish, with metallic gloss. 
Total length .......... 165 millim. 
Uae Seagate Meta ad a tirccee 1S. 95 
Width of head ........ 10 
Body io ais idgcaetonte-s Ga 42 ,, 
Fore limb ............ 26 —=C@«,, 
laid iD: joe. cada vee 46, 
AUDIA iosce en eantrg ates «ees 15, 
aD ait st most aciag ak ncn 105 _,, 
St. Croix, West Indies. 
a-b, c-d,e. SQ. St. Croix. A. and E. Newton, Esqrs. [P.]. 
: ; (Types of A. newtoni.) 
f-y ke. oS. St. Croix. Hr. Riise [C.]. 
