vq 
S.A. NAT.. 
^0L. XVIII, No. 2. 
7. 
Hy TOM IREDALK. 
areas are listed. It must be mentioned that this is purely a 
conchological review, as until' the shell characters are well under- 
stood, it is futile to attempt to deal with the somewhat illusory 
factors commonly considered in the description and separation 
of molluscan groups by anatomical data. 
r 
9. E G I O f\; 
r"' 
A 
9- 
A 
S O L' A N D E R 1 A N 
' \o 
CENTRAL 
o e 
L arapintine awe a 
E r e rr) ian o f Lq r<z on 
f a u ri u I Q 
^'Ovi rvAM 
^ o 
AUSTRALIA 
T> 
MAUC£AN^UBA^£y 0 O 
&a33'Onfou\ulo/i} <u 
I have published a map, which is here reproduced, attempting 
to show the natural divisions of the fauna and flora of Australia. 
The molluscan faunula here catalogued is that of the Centralian 
o^r Larapintine Area, and has been called the Eremian or Eyrean 
Faunula. The molluscan shells are easily recognised from their 
desert appearance, and little is scientifically known about their 
■disti ibution, life history or variation. The well known Horn 
