U2 
LAND SHELLS. 
S'.A. NAT.. 
VOL. XVIII. No. 2. 
near the edge of the outer lip. The species appear to vary more 
than in other Pupoid genera, and hence we have five recognisable 
species on the list. 
Key to Species. 
Shell about 5.5 mm. long, dextral, tapering, weakly striate 
beltiana. 
Shell larger about 6.5 mm. long, sinistral, tapering, but not 
agreeing in form with the preceding adelaidae. 
Shell a little smaller, 5.5 mm. long, sinistral, and broader 
eremicola. 
Shell still less, 4.5 mm. long, sinistral, narrower than pre- 
ceding myoporinae. 
Shell more elegant, very narrow, not tapering, about 4.25 mm, 
long by 1.5 mm. in breadth, sinistral. ischna, 
Themapupa beltiana. 
1894. Pupa beltiana Tate, Trans. Roy. Soc. South Austr., Vol. 
XVm, p.191, November; Central Australia. 
1896. Rep. Horn. Sci. Exped. Centr. Austr (pt. II), ZooL, 
p.204, pi. XVIII, fig. 15, February, as dextral form of 
P, contraria Smith. 
1921. Pupoides C 07 itrarius beltianus Pilsbry, Man. Conch. 
(Tryon), Ser. 2, Vol. XXVI, (pt. 103), p.l45, pi. 15, 
figs. 5, 7, 8, August 4. 
Tate described this dextral shell observing however “rarely 
■sinistral” and later accepted Smith’s opinion that it was merely 
the dextral form of P. contraria Smith, a West Australian shell. 
Pilsbry allowed this as a variety, suggesting that it was probably 
a distinct species, and that he had seen no sinistral specimens. 
Themapupa eremicola. 
1894. Pupa eremicola Tate, Trans. Roy. Soc. South Austr., Vol. 
XVIII, p.l91, November; Central Australia. 
1896. Rep. Horn Sci. Exped. Centr Austr., pt. II, ZooL, p.204, 
pl.XIX, fig. 17, February, as large form of P, contraria 
Smith (sinistral). 
1921. Pupoides contrarius Pilsbry, Man. Conch. (Tryon), Ser. 
2, Vol. XXVI, (pt. 103), p.l44, pi. 15, figs, 9, 10, August 
4. 
Smith (Proc. Mai. Soc. (Lond.), Vol. I, p.96, 1894, June) 
described Pupa contraria from Houtman’s Abrolhos, West Aus- 
tralia, a sinistral shell measuring, “Length 4.5, diameter 2 mm.; 
aperture 1.5 mm. long.” Tate described Pupa eremicola from 
Central Australia, a different shell, 5.5 long by 2.5 mm. wide. 
