14 
Tom Ieedalb. 
rower anil lacks the rugose plications. This reads ven- similarly to the de- 
scription ot strigiUuta but the shape is different. 
Shell elongate, rather narrow, spire moderate, attenuate, mouth oval 
not much expanded, senljiture weak, early whorls almost smooth. The 
whorls are rounded, but not strongly convex, the sutures fairly deep. There 
is very little body glaze connecting the inner and outer lips. Length of type 
12 mm., breadth (>.2,5 mm., length of aijerture 7 mm. 
Austrosuccinea strigillata A. Adams and Angas 1864. 
1864 — Succii ea sirigillata A. Adams and Angas, Proc. Zool. Soc. (Lond.), 
1864, ]). 38, June 24. Shark Bay, West Australia. 
Fig'll. Cox, Mon. Anstr. Land Shells, [i. 89, pi. XV., Ilg. 5, May, 1868. 
No specimens are available from Shark Bay so the original ileseriiJtion 
is here given: “Shell ovately conical, thin, semi-))ellucid, pale horny yellow; 
spire scarcely eiinalling the aperture; apex papillary; whorls 3%, strongly 
convex, longitudinally finely and minutely striated; aperture oblong orate; 
left margin with a long thin callus deposit, right simple. Length fi lines, 
breadth 21/2 lines. A species somewhat allied to Siicchivu striijnta Pfr., from 
South Australia, having the same papillary ape.x; but ditfering in being 
smaller, thinner, of a lighter colour, and in the whorls being less strongly 
rugose.” 
Smith (Proc. Malac. Soc. (Loud.), Vol. 1., p. 97, June, 1894) has re- 
corded Succinea scalarina from K. Wallaby L, llontman’s Ahrolhos, W.A., 
and given a figure but rvhether this be from the type of scalarina or from an 
Ahrolhos shell is not stated. At |)resent as no specimens are availal)le the 
identity of the island form cannot he ascertained. 
Austrosuccinea aridicola sp. nov. 
Plate 1., fig. 15. 
Shells collected at Boulder by W. D. Campbell are unlike any of the 
coastal forms, but still more unlike the Centraliaii interioris. Shell small, 
elongate, spire long, month short of moderate expansion, whorls very rounded, 
sutures very deep. The shells are dead, the imriostracnin missing, the sculp- 
tui'e weakly strigose, the slrigatinns still notable on the early whorl. The 
spire is almost as long as the a]ierture, the latter being rather a rognlar oval, 
the inner lip conueeting with a body glaze to tlie outer lip, which is thin a.s 
usual. Length 1(1.5 nun., breadth 6 mm., length of aperture 5.5 mm. 
Austrosuccinea eexi Finlay 1927. 
Plate I., fig. 17. 
1927 — Sucemea coxi Finlay, Trans. New Zeal. Inst., Vol. 57, p. 521, Jan. 19, 
new name for 
ISOg — Siiccinca aperta Cox, Alon. Austr. Laud Shells, p. 90, pi. XVII., fig. 6, 
May. King (leorge’s Sound, IVest Australia (Masters). 
Not Sncciiiea aperta Lea, Trns. Amer. Phil. Soc., Vol. VI., p. 101, 
1838. 
This species is recngnisabli' at siglit by the large month which is the bulk 
of the shell, the sjtire being only one-third the length of the aperture. From 
conchological features alone it deserves separation subgenerically as 
Cerinasota nov., and it is fairly certain that the anatomy will necessitate a 
higher value. 
