Tivo Neiv Australian Lizards. 147^ 



Abdominal scales granular, sniallei" than the dorsal. Tail 

 swollen, contracted at the base, tapering very rapidly, with rings 

 of suboval scales, convex above, and flat, imbricate beneath. 

 Male with a group of Ave or .six blunt spines on each side of the 

 base of the tail. 



Colour. —Pinkish-brown above, a broad black-edged light band 

 along tlie_ middle of the back and tail, bifurcating on the nape 

 and extending to behind the orbit, enclosing a dark subtriangular 

 patch on the occiput ; a few small dark dots occur in the light 

 median area. The black edges bordering the lighter vertebral 

 band are produced in two conspicious but discontinuous black 

 lines extending to the very tip of the tail. 



Dim PENSIONS. 



Total length . . . . 

 Head ------ 



Width of head - - - - 



Body ------ 



Fore limb - - - - - 



Hind limb ----- 



Tail ------ 



Habitat. — Caernarvon, Western Australia. 



Type, in the National Museum. 



This is a form allied to D. steindachneri, Boulenger, but difters 

 in the oval ear opening, the gi-eater number of labials, the 

 absence of a fringe of conical scales to the upper eyelids, in the 

 abdominal scales considerably smaller than the dorsal, and 

 greatly in the relative measurements of head and body. In 

 D. steindachneri the body is 2.3 times as long as the head, in 

 D. bilineatus it is 4.8 times as long. In colour our species is 

 conspicuous by the two dark longitudiual bands reaching to the 

 tip of the tail, whilst there are no dorsal ocelli which are so 

 marked in D. steindachneri as figured in the British Museum 

 Catalogue. 



