RECORDS OF IV. A. MUSEUM. 
[191 
afterwards altered to Diemansia and Diemenia by Dr. Gunther. 
Diemenia has been used by all recent authors but the name as 
originally spelt must be used. 
The following pages include descriptions and notes on the 
Western Australian species of the genus, based on the material 
forwarded by Mr. Woodward together with numerous specimens in 
the collection of the Australian Museum. 
Key to the Western Australian specis of Demansia. 
A. Scales in fifteen rows D. psaviviophis var. reticulata, 
Gray. 
B. Scales in seventeen rows. 
c. Portion of rostral visible from above measuring about 
half its distance from the frontal. V. 154-178, S.c. 38-51 
pairs D. modcsta, Gunther, p. 
cc. Portion of rostral visible from above about three quarters 
as long as its distance from the frontal. Snout broadly 
rounded. Head with brown smudges ; back with scattered 
brown spots. V. 215-225, 'S.c. 52-63 pairs, D. affinis, 
Gunther, p. 
ccc. Portion of rostral visible from above as long as its dis- 
tance from the frontal. Head tapering, sides nearly 
straight, snout more or less truncate. V. 184-224, 
S.c. 49-66 pairs D nuchalis, Gunther, p. 
DEMANSIA PSAMMOPHIS, Schl., var. reticulata, 
Gray. 
Diemenia psammophis, var. reticulata, Boulenger, Cat. Sn. Brit. Mus. III., 1896, 
P- 323 - 
Diemenia reticulata, Lucas and Frost, Rept. “ Horn” Sci. Expdn., II., 1896, p. 147. 
Diemenia psammophis, Werner, Fauna Siidwest-Austr., II., 1909, p. 257. 
Scales 15 rows on anterior half, 13 on posterior half of body. 
Oc. 1 + 2 or 3. Temp. 2 + 2. V. 176-197. S.c. 65-79 pairs 
Several specimens of var. reticulata are in the collection. They 
are all a light olive with a very distinct reticulated pattern. The 
hinder third of the body is somewhat lighter, shading to yellowish 
brown at the tip of the tail. A black, yellow edged, streak passes 
from eye to eye round the rostral, and another larger one beneath 
the eye passes obliquely downwards and backwards. A yellow 
spot on the praeocular ; labials yellow. Yellowish or creamy white 
beneath 
