1856.] 223 



fingers and toes not dilated ; color white above and upon abdomen ; a lateral 

 vitta passing over the tympanum, extending the whole length of the body. 



Description. Head long and narrow, with a marked depression in front ; 

 nostrils lateral, in a single scale, about a line from the extremity of the snout, 

 with several rows of small scales immediately behind them ; their lower margin 

 is on a line with the exterior ridge projecting over the orbit ; the rostral plate 

 is broad and narrow, its upper margin forming an obtuse angle ; the scales upon 

 the front part of the head are more or less hexagonal, depressed, tricarinate ; 

 the supra-orbitar ridge on each side is composed of a ridge of larger scales, separated 

 from each other hy a row of smaller ones; eight larger scales upon the orbit ; oc- 

 cipital plate quite distinct ; six or seven supra-labials ; 42 teeth in the upper 

 jaw, the eleven or twelve posterior tricarinate ; tongue triangular, smooth, 

 deeply notched behind, very slightly in front, more or less adherent beneath ; 

 scales upon the temples subequal ; auricular opening of moderate size ; body 

 slender, presenting above, twelve rowsof distinctly larger scales; about as broad 

 as long, hexagonal, each with a distinct carina extending its whole length. 

 The scales upon the abdomen, of which from sixteen to eighteen rows may be 

 counted, appear somewhat larger than those upon the back, and are also 

 distinctly carinated; the scales upont he flanks are very small, quadrangular, 

 carinated, presenting a very small spine posteriorly ; extremities slender ; toes 

 not dilated, presenting a row of transverse scales beneath ; tail of moderate 

 length ; a well marked gular pouch in the larger specimen, commencing at the 

 chin and extending upon the abdomen, (in the smaller specimen, probably a fe- 

 male, this is scarcely visible.) 



Coloration. Head, back and upper part of tail white above; abdomen and 

 under part of tail of same color ; the gular fold in the larger specimen is dark 

 colored ; sides brown, white spotted, a lateral white stripe extending from 

 beneath the eye, along the side of the head, immediately above the tym- 

 panum, passing along the side of the neck, about a line above the shoulder, and 

 extending the whole length of the side of the body, and becoming lost upon the 

 tail. The white spots are upon either side of this white lateral line, but in the 

 larger specimen they are absent, and the lateral line is of a brown color and 

 more narrow, the ground color white. 



Dimensions. Length of head 6 lines ; greatest breadth 3 ; length of neck and 

 body to vent 14 lines ; of tail 1 inch 9 lines ; of humerus 3 lines ; of arm 3 lines ; 

 of hand to extremity of longest finger 2\ ; of foot to extremity of longest toe 6 

 lines. Total length 3 inches 5 lines. 



Dimensions of a larger specimen. Length of head 7 lines ; breadth 4 ; length of 



neck and body to vent 1 J inches ; of tail ; of arm 3f lines ; of forearm 



3| ; of hand to extremity of longest finger 3 J lines; of thigh bh lines ; of leg 5| ; 

 of foot to extremity of longest toe 8 J. 



Habitat. New Grenada. Two specimens from the Philadelphia Museum in 

 exchange. 



Gen. Anolis, Daudin, 



Char. " Fingers dilated beneath the anti-penultimate phalanx, forming a 

 sub-oval disk, more or less enlarged, provided with imbricated scaly lamellte ; be- 

 neath the neck a goitre, which when it is not distended assumes the form of a gular 

 pouch more or less developed; palatine teeth, no pores to the thighs." D. & B. 



The genus Anolis is divided by Dumeril and Bibron first into two grand divi- 

 sions, viz., A. with fingers but slightly dilated, constituting the genus Draco- 

 nura of Wagler and Wiegmann This comprises but two species. B. with 

 fingers distinctly dilated, constituting the genus Dactyloa. This latter division 

 includes twenty-three species. These are again subdivided into (a.) species in 

 which the abdomen is provided with flattened scales, smooth or carinated, and 

 for the most part imbricated, of which there are twenty-two, and (/>.) species 

 with the abdominal scales granular, of which there is at present known but 

 one, viz. Anolis camaeleonides. 



The subdivision a. is again divided into species in which the scales of the 



