NOTES ON THE MOLLUSCA. 
By W. I,. May. 
Considering the reputation that Ad¬ 
venture Bay has as a collecting ground 
-for shells, the result of my research in 
the vicinity of tlie camp was somewhat 
meagre and disappoint'ng. The sandy 
Beaches were espeeia ly hare, but this 
delect would he largely remedied after a 
heavy storm, when the well-known Tri- 
gonia is occasionally washed ashore in 
great profusion, hut this is more in the 
vicinity of the ‘‘’Neck.'’ Better results 
were obtained on the rocky shores, but 
even there were somewhat limited, the 
Chiton family, so largely developed in 
Port Arthur and other hays, is here re¬ 
duced to 10 species, and some of them 
are represented by very few and pool 
specimens. 
The uhii|uilous Chiton pellis-serpentis, 
with its strongly-scaled girdle, was plen 
tifnl and well developed, whilst the little 
black C. mayii was not uncommon; C. 
subviridis, and C. rnawlei, also occurred 
in some numbers at one spot. The omis¬ 
sions were of more note than the occur¬ 
rences. For instance the almost univers¬ 
ally distributed Vevanidus was totally 
absent, and the common C. lineolatus 
only represented by a few small speci¬ 
mens. As this was an unworked Held, 
and one of the most southerly localities 
eNatnined fi r this family in the Common¬ 
wealth, hopes were entertained of new 
or remarkable forms, which w-ere not 
realised. The Limpets were more nu¬ 
merous and interesting, particularly two 
forms which may he new species. These 
occurred on t! e smooth dial ase boulders 
to the north of the camp, the most- 
striking being a pure white shell, very 
flat in shape. It appeared very local 
In habitat, but may be an extreme vari¬ 
ety of the common Patelloida tlammea. 
The other fi rm is a conical dark greenish 
black shell, with a very characteristic 
intern r. possibly another variety of P. 
flammea in the opposite direction. 
The three species of Siplionaria were 
also found living together at this spot. 
As the result of the outing I am able to 
adil one described species to our fauna, 
viz.. Triphora getnmigens Vereo, taken 
from a dead kelp root that lay on the 
beach. Previously this was only known 
from South Austraha. It may be record¬ 
ed that residents of the locality posses¬ 
sed several line s; ecimens of our largest 
Tasmanian shell. Aoluta Mamilla, taken 
on the adjacent beaches. Some were up¬ 
wards of a foot 1< ng. There was a'so a 
specimen of our line Cow-re C. armenaica 
verco—C. umbilhatus. which is, I believe, 
i lie most southern record, as is also the 
i ase with the A’olutes. 
