RECORDS OF W.A. MUSEUM. 
[197 
PSEUDECHIS AUSTRALIS, Gray. 
A very large specimen is in the collection which is of interest 
as the characters exhibited show an overlapping between P. 
denisonioides, Werner and P. australis, Gray. The ventrals are i8g 
and the subcaudals 40 + (54 in all), thus agreeing almost 
exactly with the scaling of P. denisonioides, V. 189, S.c. 34 + xf 
(54 in all). In P. denisonioides the internasals are one-third as long 
as the praefrontal, a condition exhibited by none of the specimens of 
P. australis that I have seen. The frontal is half as long as the 
parietal in Werner’s new species, but in my specimenit is only three- 
fifths as long, the normal for P. australis being two-thirds the length 
of the parietals. Other differences in Werner’s species are a single 
anal and the greater extension of the rostral on the dorsal surface of 
the snout. 
I have examined a number of specimens of P. australis and find 
that this species varies very considerably. P. denisonioides, hoveever:, 
differs so much that the above could not be regarded as uniting the 
two species, but shows at least that the scaling overlaps. 
The scale formulae of P. australis should now stand; — V. 189- 
220; Anal 2, S.c. 8-41 single -f 14-54 paired. Total 53-70. Tem- 
porals 1-2 -t- 2. 
PURINA BIMACULATA, D. and B. 
Text Fig. 7. 
Furina bimaciilata. Dum. and Bibr., Erp. Gen., VII, 1854, p. 1240. 
,, ,, Jan., Rev. and Mag. Zool., 1859, p. 125, pi. VI. 
Pseudelaps bimamlaliis, Jan., Icon. Gen., Livr. 43, 1873, pi. V., fig. 2. 
Fnrina himacidata, Uoulenger, Cat, Su Brit, Mus,, III, 1896, p. 406 (see synonomy). 
,, ,, Werner, Fauna, Siidw.-Austr., II., 1909, p. 262. 
There are two specimens of this rare snake in the collection. 
The largest 317 mm. long and has 181 ventrals, 30/29 subcaudals, 
2 anals, 1 + i temporals, the first very long. The smaller specimen 
which is 230 mm. long differs somewhat from Boulenger’s descrip- 
1 Werner — Fauna Siidw.-Austr., II, 1909, p. 25S. 
