10 . 
LAND SHELLS'. 
S.A. NAT., 
yOT. No. 2'., 
Genus Austrosuccinea. 
1957. Jiistrosiiccinea Iredale, Austr. Zool., Vol. VIII, p.307,, 
March 12. 
Orthotype Succmea australis Ferussac. 
The similarity of shell structure makes it difficult to deal 
with members of this family without long series and local know- 
ledge. 
Tate pointed out that the microscopic sculpture varied, but 
this is only clearly seen in fresh specimens; however, it can be- 
used for the only two terrestrial species admitted. 
Key to Species. 
Shell with long spire, body whorl rounded, microscopic 
sculpture feeble australis 
Shell with long spire, body whorl more slender, microscopic 
sculpture bold interioris. 
Austrosuccinea australis. PI. I, fig. 23. 
1821. Helix austalis (sic) Ferussac, Tabl. Syst. Limacons, pt.- 
II, p.31, January: p.27, “June”~May 12: pi. XI, fig. 11, 
probably with name, issued in livr. 2, Mch. 1819. Kan- 
garoo Island and Isles St. Pierre and St. Francois 
(Peron). 
1855. Succinea strigata Pfeiffer, Proc. Zool. Soc. (Lond.), 1854, 
p.297, May 8 1855: “Port Clarence, Behring’s Straits”' 
error=“general In South Australia.” Cf. Proc. Zool. 
Soc. (Lond.), 1863, p.S22, 1864. Fig’d. Cox, Mon.. 
Austr. Land Shells, p.88, pi. XV, fig. 1, Alay 1868. 
1864. Succinea rhodostoma Cox, Cat. Austr. Land Shells, p,27.. 
Point Lowly, South Australia. 
Austrosuccinea interioris. 
1894. Succmea Interioris Tate, Trans. Roy. Soc. South Austr.,. 
Vol. XVIII, p.191, November. Central Australia. 
Figd. Rep. Horn Sci. Exped. Cent. Austr., pt. II, ZooL, 
p.207, pi. XIX, fig. 21, Feb. 1896. Palm Creek, Central 
Australia. 
When Tate figured this species he gave a comparison with 
S\ scalarma, which showed little distinction, but he did not men- 
tion the locality whence his specimens of so-called scalarina were 
taken. So many different forms have been called scalarina that 
this point becomes important. 
