14. 
LA^'I) SHELIvfs. 
S.A. NAT., 
VOL. A i'll 1. iSo. 2. 
Genus Omegapilla. 
.1937. Omegapilla Iredale, Austr. Zool. Vol. VIII, p.304, March 
12 . 
Orthotype Pupa nelsoni Cox. 
Small pupoid shells, about 3 mm. to 4 mm. long, mouth 
^£mall, sinistral or dextral, the mouth with three or four teeth 
^cnly of a different character from those of Australbinula, . . 
Key to Species. 
Shell sinistral, 4 mm. long, with no upper palatal fold 
australis 
Shell dextral, a little smaller, 3.5 mm. long, and broader 
ficubiea. 
Omegapilla australis. PI. I, fig. 6. 
(1864. Vertigo australis Angas, Proc. Zool. Soc. (Lond.) 1863, 
p.522, April 20 1864, ex Adams and Angas MS.; Rapid 
Bay, South Australia. 
J868. Pupa australis Cox, Mon. Austr. Land Shells, p.79, pi. XX, 
fig. IS, May, from a painting of the type by Angas. 
1867. Pupa lincolnensis Cox, Proc. Zool. Soc. (Lond.) 1867, 
p.39, May 25: Port Lincoln, South Australia (Masters). 
1868. Pupa Ihicolniensis Cox, Mon. Austr. Land Shells, p.80, 
pi. XIV, fig. 16, May. 
3921. Pupilla australis Pilsbry, A'lan. Conch. (Tryon), Ser. 2, 
Vol. XXVI, (pt. 104), p.218, pi. 23, figs. 13, 14 (Edith- 
burg), November. 
As Rapid Bay is on Fleurieu Peninsula while Port Lincoln 
is on Eyre’s Peninsula, these forms may later prove separable. 
Hitherto the range allowed for these minutiae has been enormous, 
and probably accounts for the great variation recorded. 
Omegapilla ficulnea. 
1894. Pupa ficulnea Tate, Trans. Roy. Soc. South Austr., Vol. 
XVm, p.l91, November; Central Australia. 
1896. Rep. Horn Sci. Exped. Centr Austr, pt. II, Zool.. p.205, 
pi. XIX, fig. 18, February, palm Creek, off Glen of 
Palms, in Krichauff Range. 
1921. Pupilla ficulnea Pilsbry, Man. Conch. (Tryon), Ser. 2, 
\'ol. XX\T, (pt. 104), p.221, pi. 23, figs. 20, 21, Novem- 
ber. 
Family Subulinidae. 
The shells belonging to this family are easily recognised, as 
they are small, slender, elongate, glassy shells. The mouth is 
small and open with the outer lip thin and the columella straight. 
