40 LacertidsB. 



plates in 8 or 10 (rarely 12) longitudinal series; hind limb not 

 reaching the ear. 



1. Toes very feebly pectinate on both sides. 



Two large supraoculars ; dorsal scales smooth or keeled, upper 

 caudals strongly keeled ; 18 to 30 femoral pores on each side. 



A. vulgaris, D. & B., p. 41. 

 Two large supraoculars ; dorsal and basal caudal scales perfectly 



smooth ; 18 to 24 femoral pores on each side . A. tristrami, Gthr., p. 53. 

 A single large supraocular; dorsal and upper caudal scales 

 strongly keeled ; 14 to 18 femoral pores on each side. 



A. boueti, Chaban., p. 55. 



2. Outer edge of fourth toe strongly pectinate ; two 



large supraoculars ; dorsal and upper caudal 

 scales strongly keeled ; 19 to 28 femoral pores 

 on each side . . A. saeignyi, Aud., p. 57. 



B. Three (rarely two) large supraoculars, Uie first frequently divided 



into two or three, or separated from the second by a series of 

 granules ; dorsal scales small ; toes usually feebly pectinate on 

 both sides, or a little more strongly on the outer side of the fourth 

 toe. 

 Ventral plates in 12 or 14 (rarely 16) longitudinal series ; sub- 

 ocular very rarely bordering the mouth ; hind limb rarely 

 reaching the ear (males) ; foot 1 to Ij times length of head. 



A. pardalis, Licht., p. 62. 

 Ventral plates in 10 longitudinal series ; subocular usually 

 bordering the mouth ; hind limb reaching the ear or the 

 eye; foot li to li times length of head A, micropholis, Blanf., p. 76. 



C. Usually four large supraoculars, but first or fourth sometimes broken 



up ; posterior dorsal scales imbricate ; ventral plates in 10 (rarely 

 8 or 12) longitudinal series ; fourth toe more or less strongly 

 pectinate on outer side. 

 Dorsal scales small, obtusely or more or less strongly keeled, 

 18 to 26 in a transverse series between the hind limbs ; first 

 supraocular always entire . A. schreiberi, Blgr., p. 7S. 



Posterior dorsal scales large and strongly keeled, 8 to 16 in a 



transverse series between the hind limbs A. bosMamis, Daud., p. 83. 



II. Four series of scales round the fingers, three round the toes ; three or four 

 large supraoculars, the first rarely broken up. 



A. Ventral plates in 12 to 16 straight longitudinal series ; 



posterior dorsal scales very large, imbricate, and 

 strongly keeled, 10 to 16 in a transverse series 

 between the hind limbs ; oixter edge of fourth toe 

 strongly pectinate . . .A. cantoris, Gthr., p. 91. 



B. Ventral plates not forming straight longitudinal series ; 



dorsal scales small, 18 or more in a transverse series 

 between the hind limbs. 

 Scales more or less distinctly keeled ; ventral plates in 12 to 16 

 longitudinal series ; snout acutely pointed ; foot longer than 

 head ; outer edge of fourth toe strongly pectinate A. scutellaliis, Aud., p. 97, 



