6 NILS HJ. ODHNER, MOLLUSCA. 
prehensive and productive investigations on the interesting history of the Australian 
land molluse fauna. 
The total number of species of mollusca collected by Dr. Ms6nerG and men- 
tioned in this publication amounts to 292, including 36 new species or varieties, 
distributed as shown in the following surwey: 
Marine mollusca from Western Australia 219 thereof new 20 
> »  EKastern 3 » > — 
Land and fresh-water » Western hss > 2 
2 > > »  Hastern > 50 9 
Fossil land > p 6 > 3 1D 
Of the Western Australian marine mollusea the collections from the shores of 
Broome are enumerated separately as being of less value, because they comprise 
numerous shells obtained from the inhabitants and therefore of somewhat uncertain 
locality. 
The Eastern Australian localities where land mollusca were collected are situated 
in the northern and southern regions of Queensland, and of their more exact geo- 
graphical position may be given the following accounts: 
Atherton, Herberton, Evelyne, Cedar Creek, Malanda and Bellenden Ker are 
situated south, and Chillagoe south-west of Cairns in North Queensland; 
Christmas Creek, Glen Lamington, and Mount Tambourine, lie in South Queens- 
land, south of Brisbane; 
Coleman River debouches into Carpentaria Gulf on the west coast of York 
Peninsula, 
Most of the figures of the three plates reproduced in the present publication 
are from photographs made by the author and retouched with well-known ability 
by Mr. G. Litsevaty. All the text figures, as well as figs. 68—70 of Pl. 2, have 
been drawn by the author. 
To Mr. Cu. Hepiey, Sydney, I am under great obligations for much valuable 
advice and for kind assistance in controlling my identifications of some forms which 
were impossible to determine with certainty by the aid of literature only, as well as 
for his great kindness in sending me material for comparison of a great many of 
Australian mollusca. I am also indebted to Prof. A. Wirtn, Uppsala, and Prof. 
A. WicHMANN, Leiden, for their kindness in helping me in special cases. 
