38 Proceedings of the Royal Society of Victoria. 



eye with distinct circular scaly lid ; ear-opening elliptical, 

 oblique, its diameter equal to that of the eye. Tail, when intact, 

 three or four times as long as the body. The rudimentary hind- 

 limbs measure about the length of the snout in males, consider- 

 ably less in females. Rostral triangular or pentagonal, nearly 

 twice as broad as high ; nostril pierced between the first labial 

 and three nasals (two in the specimen described as D. ijwikri, in 

 which the naso-rostral and upper nasal have fused) the two 

 anterior of which form a suture with their fellows on the snout ; 

 exceptionally, liowever, the upper nasal is separated from the 

 nostril ; a pair of fronto-nasals ; prsefrontal large, a little broader 

 than long, seven-sided, the antero-lateral sides very short, in con- 

 tact with a large loreal ; frontal as broad as or a little narrower 

 than the prtefrontal, longer than broad, seven-sided, its posterior 

 angle wedged in between the pair of parietals, which are consider- 

 ably larger than the frontal ; a pair of enlarged scales on the 

 outer side of the parietals ; two large supraorbitals ; a large 

 loreal and four or five small plates between the orbit and the 

 nasal ; five or six upper labials, fourth much elongate and 

 situated under the orbit from which it is separated by a row of 

 small scales ; mental large, triangular, broader than long ; four 

 lower labials, the two anterior much dilated vertically, the first 

 forming a suture with its fellow behind the mental. Sixteen 

 longitudinal rows of scales round the middle of the body. The 

 enlarged ventral scales vary considerably in width, being some- 

 times not quite twice as broad as long, whilst in most specimens 

 they are more than twice as broad as long ; they form forty-five 

 to sixty pairs. Two large and a smaller median anal scales. 

 Olive above ; head generally with four more or less confluent 

 black cross bands, which may be separated by whitish bands ; 

 in two specimens these bands are indistinct, and the sides of the 

 head and body are vertically barred with darker and whitish ; 

 one specimen uniform olive without any markings. Lower 

 surfaces yellowish. 



Head ... ... ... 13 mm. 



Width of head 7 „ 



Body 85 „ 



Hind-limb ... ... 4-5 „ 



Tail 355 „ "— Boulenger. 



