54 THE MOLLUSCAN FAUNA OF TASMANTA. 
another, South Australia, as far as Eucla, another, and Western 
ee ae another. In this sense we should have to divide Tas- 
o two provinces. e nort e, which would have 
its aatiint with the South Australian tor and the eastern 
and southern, which would be found more in vobtices with the 
S.E. province of Australia. But just as there is in all these 4 
provinces the same general character, or as we term it, the same 
which are very ¢ the South Australian coasts. 
Beginning with the "littoral shells we have the same Patella 
(P. tramoserica Chem.) on the rocks of New South Wales, of 
Port Phillip, or South Australia, but it differs a good deal in 
character. In its young state it is streaked with bright ver- 
milion in Victoria; on the New South Wales coast it is often a 
rosy red; in South Peres it is of a beautiful golden yellow; 
wale i in South Tasmania it is a dull leaden colour, and attains a 
much larger size than anywhere else. Perhaps the two most 
common shells on all the south coast of Australia are Phasian ella 
Sitios and Turbo undulatus. Every one is familiar with the 
former of these shells, which assumes casey astonishing varieties 2 | 
of colour, all of great beauty. It would be hard to find any ei 
part of the Tasmania coast where ees are not Pe up on the 
beach; but as we proceed south they become more scarce, 
T. undulatus especially so. On the other hand, the common 
coast shell of Tasmania is the beautiful Venus lamellata. On — 
the beach of Sandy Bay, near nena’ sir they are drifted up 4 
in immense numbers at tim The same shell is common on a 
the north coast, and on the South Australian coasts they are con- 
sidered great rarities. As that is very common throughout 
Tasmania, and equally common on all ie south coasts of Aus- 
tralia, is Buccinum alveolatum, Kiener. The animal acts as a kind 
of scavenger to the coast. Its powers of sight or sc ent must be 
ery 
eerie ai 
. 
Tasmania as » places foe m e find a 
difference from the Australian ante. "Th he ere ‘an covered — 
nee inven: tramoserica, P. ustulata, Acmaa altcostata, A. 
A. septiformis, Siphonaria aoe S. diemanenss 
cnet “(Risellay melanostoma. (L. nan and aurea occur, but 
Ihave shown that these are simple varieties) Trochocochlea aus- 
tralis, T. constricta, with the variety 7. teniata, Diloma 
Littorina caerulescens, the many varieties ziczac, Phillipi, &e. 
