26 IGUANID.Z. 
6. Anolis cristatellus. 
Cuv, R. A, ii. 2nd ed. p. 49. . 
Anolis cristatellus, Dum. § Bibr. iv. p. 143; Reink. § Liith. Pidensk. 
Medd. 1862, p. 249; Bocourt, Miss. Se. Mex., Rept. pl. xiv. tig. 12; 
Peters, Mon. Berl. Ac. 1876, p. 706. 
Ptychonotus (Istiocercus) cristatellus, Fitzing. Syst. Rept. p. 65. 
Xiphosurus cristatellus, O’Shaughn. dnn. § Mag. N. HL. (4) xv. 
1875, p. 271. 
Head moderate, once and a half to once and two thirds as long 
as broad, longer than the tibia; forehead more or less distinctly con- 
cave, with two diverging ridges ; a concavity behind the interorbital 
region in the male; upper head-scales smooth ; scales of the supra- 
orbital semicircles very large, in contact between the orbits (ex- 
ceptionally separated by one row of granules), produced forwards as 
frontal series; six to twelve enlarged, keeled supraocular scales, 
separated from the supraorbitals by one or two rows of granules; 
occipital nearly as large as the ear-opening, separated from the 
supraorbital semicircles by two or three series of scales; canthus 
rostralis sharp, canthal scales three; five or six loreal rows ; 
six or seven labials to below the centre of the eye; ear- 
opening moderately large, vertically suboval. Gular appendage 
of moderate size, scarcely developed in the female, with rows of 
distant small scales; gular scales very small, feebly keeled. Body 
rather short, feebly compressed, in the male with a dorso-nuchal 
fold. Dorsal scales small, granular, smooth, smaller still on the 
flanks ; ventral scales larger, cycloid, imbricate, smooth or feebly 
keeled. Limbs moderately long; the adpressed hind limb reaches 
the eye or a little beyond; digital expansions well developed ; 
eighteen to twenty-five lamellae under phalanges mu. and 111. of the 
fourth toe. Tail compressed, strongly in the male; the latter have 
usually, but not always, a much developed fin-like crest on the basal 
half of the tail, supported by the much-produced spinous processes 
of the vertebree ; length of the tail not twice that of head and body. 
Male without distinctly enlarged postanal scales. Greyish or 
brownish above, uniform or marbled with brown; females and young 
with a more or less distinct light vertebral band; lower surfaces 
whitish, uniform or dotted with brown; gular appendage blackish. 
Totallength .......... 205 millim. 
Head .......... waa ak 5 
Width of head ........ 13s, 
BOO <sentectces Usd whose anaes 49, 
Fore limb ............ 33, 
Hind limb ............ 56, 
HDI 8s 55. ales @ ai Vedinuedeass ang i ane 
Mall os, sare ae Seeks 135, 
West Indies. 
a-g, h-n, o-p. 3, Q, St. Thomas. Hr. Riise (C.}. 
her. 
