38 ON WEST INDIAN REPTILES. 



the tail. Top and sides of head usually dark. Ventral 

 surface whitish. 



Hab. St. Vincent. Twelve specimens. 



Anolis trossulus, sp. n. 



Head rather large, about one and two-thirds times as 

 long as wide, as long as the tibia; snout moderately 

 broad, one and a half times as long as the distance from 

 eye to ear ; forehead and occiput concave, deeply so in 

 large specimens ; frontal ridges low, short ; some of the 

 upper head scales keeled ; scales of the supraorbital semi- 

 circles large, partly in contact or entirely separated be- 

 tween the orbits; nine to fifteen enlarged, keeled supra- 

 oculars, in contact with or separated from the supraorbital 

 semicircles ; occipital larger than the ear opening, in a cup- 

 shaped depression, in contact with or separated from the 

 supraorbitals ; rostral canthus angular, canthal scales two 

 large and two small; loreal rows tive (four to six) ; five 

 to six labials to below the centre of the eye ; ear opening 

 medium, vertical diameter twice the longitudinal. Gran- 

 ules on the swellings behind the occipital very small. 

 Gular appendage large, extending backward of the arms, 

 its scales small, keeled. Body compressed; dorso-nuchal 

 fold surmounted by two rows of enlarged, strongly-cari- 

 nate scales. Dorsal granules small, rough to the touch, 

 with strong keels, larger toward the vertebral rows, small- 

 er toward the flanks ; ventral scales larger than the dor- 

 sals, hexagonal, juxtaposed, strongly keeled ; autefemorals 

 larger, imbricate, keeled, tricarinate in two rows near the 

 knee. Limbs strong; adpressed, the hind limb reaches 

 the anterior border of t the eye ; digital expansions not 

 large; lamellae under phalanges ii and iii of the fourth toe 

 about twenty-six. Tail compressed, near two and a half 



