RECORDS OF W.A. MUSEUM. 
190] 
OPHIDIA. 
(Snakes.) 
LIASIS OLIVACEUS, Gray ? 
Liasis olivacens (Gray), Boulenger, Brit. Mus. Cat. Sn., I., 1893, p. 79, pi. IV., 
fig. 2. 
There is a large skin in the collection which differs so much 
from Boulenger’s description that it should perhaps be regarded as 
a distinct species. With our limited knowledge of the variations of 
this snake however it is safer to merely record these variations and 
await additional material. The differences will be seen from the 
following table. 
L. olivacens. 
L. olivacens. ? 
V. 349-361. 
V. 357 - 
S. C. I00-I02. 
S.C. loi. 
Scales in 69-75 rows. 
Scales in 56-64 rows. . 
Labials 
Labials 
Rostral broader than high. 
Rostral higher than broad. 
Eye larger than its distance from the 
Eye smaller than its distance from the 
mouth. 
mouth. 
Frontal ij as long as broad. 
Frontal i| as long as broad. 
A small azygous shield (often absent) 
A large well defined six-sided azygous 
separates the praefrontals. 
shield separates the praefrontals. 
Internasals more than half as long as 
Internasals half as long as anterior 
anterior praefrontals. 
praefrontals. 
There are five lower labials pitted, the pits being decidedly 
stronger than those figured by Boulenger. The parietals are in 
contact behind the frontal and are considerably larger than he 
shows them. 
DEMANSIA, Gray. 
Deviansia, Gray, Zoo!. Miscell., 1842, p. 54 (for Elaps psammophis, Schleg.) 
Diemaiisia, Gunther, Cat. Col. Sn., 1858, p. 254. 
Diemenia, Gunther, Ann. Mag. Nat. Hist., (3), XII., 1863, p. 350. et auctormn. 
The generic name Diemenia used by recent authors is unten- 
nable. It was originally spelt Deinansia by Dr. Gray but was 
