The Molluscan Fauna of Tasmania. 
By the Rev. J. E. Textson-Woops, F.L.S., F.G.S., Hon. Member 
Royal Society, N.S. W., &e., ‘&e., &e. 
[Read before the Royal Society of N.S.W., 4 September, 1878.] 
Havine recently completed a census of the  ceaeapgee Fauna of 
Tasmania, it will be bey = ful if I add some remarks ea 
the nature of that fauna and its geological ieie The ti 
has hardly come when this can be done completely. 
operations have not been carried out to any extent, so that the 
nature of the laminarian zone is little understood. The Mo oe 
Fauna of Australia is also only very partially known. New 
Wales or the east coast is a Teg the best explored, but still “far 
a completely ; and as for South Australia and ig ase our 
owledge is extremely pant ae It will be seen, th erefore, 
that I can only give broad and very general po such as 
es 
n order to understand the fauna of Tasmania we must bear 
in mind first of all the physical character of bes island. It is 
separated from Australia by a wide and deep strait, 90 miles at 
more temperate latitudes than ay part of Australia, and on 
its southern side it is exposed to the full force of the southern 
ocean, as well as to the influence of much colder seas. The coast 
is almost without exception bold, precipitous, and ro cky y, with 
anting. e 
not a warm one, appears to be very equal eo temperature It is 
uaries. In these particulars Tasmania Ssnbvants very strongly 
with the south coast of Australia. The sea there is warmer, 
or brackish water ike: The south-east coast of Australia differs 
to some extent from this, resembling Tasmania more. The 
shore is often bold and much more broken; there are scarcely 
any islands, and the seas are exposed to the full influence of the 
southern ocean 
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