ACANTHODACTYLUS CANTORIS. 73 



Lizard was obtained by W. Elliott, Esq., near Coouoor. Its colours iu spirits are of a pale pearl-grey, 

 with a row of black spots on its back, another row on its sides somewhat larger and white, edged black. 

 Length of one 5| inches, of which the tail is 3." 



ACANTHODACTTLUS CANTORIS. 



Head of moderate length, with the snout narrowed ; body and root of the tail rather 

 depressed ; limbs well developed. 



Rostral shield bent backwards on the upper surface of the snout, with an obtuse angle 

 behind ; supranasals meeting each other behind the rostral ; prsefrontal nearly square ; pos- 

 terior frontals longer than broad, each with an obtuse longitudinal keel ; vertical bell-shaped, 

 broadest in front, narrow and elongate behind, with two convergent obtuse keels. Super- 

 ciliaries three, the anterior of which is small ; they are separated from the orbital margin by 

 a narrow strip of small scales. Two pairs of occipitals : the anterior pair small, triangular, 

 the posterior twice as large and subquadi'angular ; a very small central occipital is also 

 present. The nostril is situated between the supranasal, the first labial, and a small post- 

 nasal. Eight upper labials ; an elongate shield below the orbit and above the fifth, sixth, 

 and seventh labials. The mental shield is nearly as long as broad; seven rather narrow 

 lower labials ; a series of five chin-shields runs along the inner side of the labials (the 

 third is the largest) ; the first three pau's of these chin-shields touch each other in the 

 median line, whilst the shields of the fourth and fifth pairs are separated from each other by 

 Small, smooth scales. These scales gradually increase in size towards the collar, and those in 

 front of the collar are as large as the anterior ventral scales. Scales on the cheek obtusely 

 keeled, small, but much larger than those on the neck ; no lobules or larger scales in front 

 of the ear. 



All the scales on the upper side of the body are strongly keeled, imbricate, obtusely pointed 

 behind ; they are exceedingly small on the neck, but become gradually larger towards the 

 middle and hind part of the body ; they form thirteen longitudinal rows in the middle of the 

 back, the keels forming continuous lines. The scales on the side of the trunk are much 

 smaller than those of the back, and keeled. Ventral scales in twelve longitudinal series in 

 the middle of the belly, smooth, square ; those near the throat are rhombic. Prseanal region 

 covered with scales similar to those near the collar, the last being larger than the others. 

 The scales of the tail are keeled and disposed in rings. 



Twenty pores on each side ; the perforated scales form a continuous angular series across 

 the prseanal region. The fore limbs extend to the front edge of the orbit, if laid forwards, 

 the hind limbs to the collar. The hind toes are very distinctly serrated along their external 



Greenish olive above, with reticulated blackish lines ; uniform whitish below. 



