540 COLUBRID. 
contact with the anterior chin-shields, which are as long as the 
posterior. Scales in 19 rows. Ventrals 157-164; anal entire; 
subcaudals 25-30. Pale olive-brown above, scales edged with dark 
brown; head dark brown above, nape black; a black streak on 
each side of the head, passing through the eye; a yellow spot on 
the preocular, and another on the postoculars ; upper lip and lower 
parts yellowish white. 
Total length 200 millim. ; tail 23. 
Southern Australia. 
a. 2 (V. 164; C. 25). Adelaide. Rev. T. E. Lea [P.]. 
10. Denisonia frontalis. 
Hoplocephalus frontalis, Douglas Ogilby, Proc. Linn. Soc. N.S. W. (2) 
iy. 1889, p. 1027. 
Eye small. Rostral twice as broad as deep, slightly bent back- 
ward between the internasals, which are much shorter than the 
prefrontals ; frontal a little longer than broad ; nasal not reaching 
the single preocular ; two postoculars ; temporals 2+2; six upper 
labials, second in contact with the prefrontal, third and fourth 
entering the eye; anterior chin-shields rather larger than the 
posterior. Scales in 19 rows. Ventrals 154; anal entire; sub- 
caudals 30. Light brown above, scales narrowly margined with 
black; a broad black nuchal collar, extending forwards over 
portions of the upper labials, temporals, and the lower postocular 
to the eye; a black spot in front of the eye on the second and third 
labials; «a black vertebral line; pearly white beneath, with a 
broad bronze-coloured median band. , 
Total length 400 millim.; tail 50. 
Narrabri, New South Wales. 
_11. Denisonia flagellum. 
Hoplocephalus flagellum, MeCoy, Prodr. Zool. Vict., Dec. 2, p. 7, 
pl. xi. fig. 1 (1878). 
Eye longer than its distance from the mouth. Rostral twice as 
broad as deep, visible from above; internasals shorter than the 
prefrontals ; frontal once and one fourth to once and a half as long 
as broad, broader than the supraocular, as long as its distance from 
the end of the snout, shorter than the parietals; nasal entire, in 
contact with the single preocular; two postoculars; temporals 
2+ 2, lower anterior wedged in between the fifth and sixth labials; 
six upper labials, third and fourth entering the eye; three lower 
labials in contact with the anterior chin-shields, which are as long 
as the posterior. Scales in 17 rows. Ventrals 132-138; anal 
entire; subcaudals 25-27. Pale brown above; vertex, occiput, 
and nape black; upper lip and lower parts white. 
Total length 380 millim.; tail 40. 
Victoria 
