222 THE PROCEEDINGS OF THE LINNEAN SOCIETY 



columella margin thickened and extending across the body whorl 

 into a thin callus plate joining the upper part of the peristome. 



Length 10|, breadth SJ lines. 



Hab., Diamantina River, Queensland. 



I have named the species after its discoverer, Mr. William 

 Alison, jun., of Wingadee, who presented two specimens (adult 

 and young) to the Macleay Museum, Elizabeth Bay. 



On some Tertiary Fossils from Muddy Creek, Western Victoria. 



By the Rev. J. B. Tenison- Woods, F.G.S., F.L.S., Hon. 



Corr. Mem. Lin. Soc, N.S.W. 



Plates 20 and 21. 

 The following fossils were obtained from the tertiary beds on 

 the banks of the Muddy Creek, a tributary of the Wannon 

 River, about five miles from Hamilton in Western Victoria 

 The most of them were gathered for me by Mr. Samuel Pratt 

 Winter, whose beautiful station of Murndal, on the Wannon, is 

 not far from the locality in question. Some have been in my 

 possession for more than sixteen years, and I would have pub- 

 lished a notice of them long ago, but that I understood that all 

 the miocene fossils would have been fully described ten years 

 since by the Victorian Geological Survey. This expectation has 

 been frustrated by the reduction of the geological staff of the 

 colony, and now the only person engaged on Victorian paleonto- 

 logy is Prof. M'Coy, who, in the " Decades," is most ably and 

 satisfactorily dealing with some of the more remarkable species. 

 As a very long time must elapse before all the larger fossils are 

 dealt with, I have thought it better to publish my own limited 

 investigations on the very small ones. I do this, because I am 

 convinced that the material at my disposal gives me peculiar 

 advantages, especially as I have for the last four years been en- 

 gaged in describing the small existing species of the south coast, 

 and I fear risking the loss of the material altogether if I delay 

 its publication any longer. If what I offer is incomplete, I 

 trust geologists will excuse this incompleteness, in view of the 



