130 Dr. A. Giinther on new Species of Snakes 
the crown of the head is black, and is united with the back by a 
narrow band of the same colour, running along the median line 
of the neck ; neck with an oblong light-greyish spot on each side 
of the band. Lower jaws brown, marbled with a lighter tint. 
The single specimen sent by Mr. Krefft from the neighbour- 
hood of Sydney is not in a good condition, half-dried, and appa- 
rently immature ; it is nine inches long. 
Diemansia torquata. Pl. IX. fig. 10. 
Scales in fifteen rows, smooth. Brownish olive, each scale with 
a short white line at the basal portion of its outer margin; skin 
between the scales black ; a brownish-black streak, edged with 
yellow, across the rostral shield and the loreal region, extending 
to the orbit. Posterior oculars yellow ; a yellow streak edged 
with black from the eye to the angle of the mouth, continued 
into another similar band across the neck ; another yellowish 
cross-band at some distance behind the former; the space be- 
tween the two cross-bands dark brown, the whole forming a 
collar. Chin yellowish, marbled with grey ; belly shining grey, 
a blackish band along the middle of the anterior half of the belly ; 
tail reddish olive posteriorly. 
Head flat ; loreal replaced by the conjunction of four shields, 
as in the typical species ; six upper labials, the third and fourth 
entering the orbit; two anterior temporals, the upper in con- 
tact with the lower postocular, the lower intercalated between the 
fifth and sixth labials. Scales without groove at the apex. Ven- 
tral plates 206 ; anal bifid; subcaudals 84. 
Length of the head 7 lines, of the trunk 16 inches, of the tail 
Ginches. ~ 
Habitat.—Percy Islands. 
Hoplocephalus temporalis. Pl. IX. fig. 11. 
Scales in nineteen rows ; six upper labials, the second of which 
is pointed above, the third truncated; temporal shields small, 
numerous, in three series; two temporals are in contact with the 
post-orbitals, and a third below is intercalated between the two 
posterior labials. 
Description — Body stout, thick ; tail rather short ; head short 
and broad, distinct from neck; eye small, pupil subelliptical. 
Rostral shield triangular, nearly as high as broad, rounded above ; 
anterior frontals small, broader than long, posterior frontals of 
moderate size, rounded posteriorly ; vertical five-sided, much 
longer than broad, with parallel outer edges, and a pointed pos- 
terior angle ; occipitals of moderate size ; two posterior oculars, 
one anterior just reaching to the upper surface of the head; the 
postfrontal, nasal, ante-orbital and second upper labial meet at 
