492 MR. A. W. E. O'SHAUGHNESSY ON A NEW ANOLIS. [JuilC 15, 



Anolis bxjckleyi, sp. n. (Plate XLIX.) 



Form elongate, slender ; muzzle rounded, very convex anteriorly, 

 becoming very concave in front of the orbital region, covered with 

 numerous rounded or polygonal plates, minute between the nostrils, 

 but rather large elsewhere. Three large plates on the facial ridge 

 between the orbit and the nostril. Bony orbital and occipital ridges 

 strongly marked. Plates of the orbital ridge very large, the two 

 series contiguous and not separated by any interorbital row of scales ; 

 supraorbital scales large, polygonal. Occipital plates indistinct and 

 sunken, the diamond-shaped space formed by the orbital and occi- 

 pital ridges being occupied by plates of irregular shape and size. 

 All the head-shields smooth. Three series of elongate loreal scales. 

 Infraorbitals immediately upon the supralabials, which are a series 

 of elongate narrow scales, eight in number, becoming excessively 

 narrow posteriorly, where the deepest of the infraorbitals almost 

 reaches the corner of the mouth. 



Mental a very broad and scarcely cleft plate, resembling that of 

 Anolis nasicus, but reaching further on either lateral infralabial part 

 of the lower jaw than in that and most other species of Anolis, which 

 offer degrees of variation in this particular. In the present species 

 the extent of tliis plate is very remarkable, the point where it touches 

 the double series of infralabials on each side of the jaw being in a 

 vertical with the hinder edge of the first upper labial. Scales of the 

 chin minute, rounded, becoming granular posteriorly. Gular pouch 

 very large. 



The entire upper and lateral surfaces of the body are finely 

 granular, the granulation being more minute than in Anolis nasicus. 

 Ventral surface with moderate-sized square or rounded scales, not 

 keeled. 



Tail very long and tapering, nearly twice the length of the head 

 and body ; granular above, and with larger broad scales beneath. 

 Hind limb stretched forward reaching to the front edge of the ear ; fore 

 limbs laid backwards reaching three fourths the length of the side. 

 Digital dilatations well developed, pyriform, with broad transverse 

 plates beneath. 



Coloration (in spirits). Ground-colour brownish or greenish, with 

 black spots or punctulations on the back and sides, and a black net- 

 work on the upper surface of the head round the edges of the scales. 

 The black spots are very conspicuous on the sides and along the 

 origin of the gular pouch. The pouch is very large, of a bright 

 saffron-yellow, with black longitudinal streaks and spots at the base. 

 A black streak along the loreal space to the eye. Fine oblique 

 white or bluish stripes down the sides of the body, with rows of 

 black dots between. Ventral surface pale bluish, dotted with black. 



milliins. 



Length from tip of snout to extremity of tail 2.50 



Length of head to anterior border of ear- opening 21 



Width of head posteriorly 11 



Length of the body from the ear-opening to the anus .... 67 



