880 Transactions.—Zoology. 
numerous rows of simple hooked teeth; gizzard een with large 
triangular calcareous plates; shell none. 
Like many of the species of the allied genus Aplysia, this animal 
possesses the power of emitting a purple fluid from the edges of the mantle, 
but only in small quantity; and it may often be handled without anything 
of the kind being observed. All my specimens are from Auckland Harbour, 
and were obtained from rather sandy localities near the extreme verge of 
low-water mark. 
EXPLANATION OF PLATE XVI. 
Fig. 1. Pleurobranchus ornatus. 
2. Shell of the same. 
8. Pleurobranchea nove PEPEE 
4, Aclesia glauca, 
Art. LIL.—Our Fish Supply. By P. Taomson. 
[Read before the Otago Institute, 18th August, 1878.] 
I pec to lay before the members of the Institute the third and concluding 
series of my notes on the Dunedin Fish Supply.” I think enough has 
been done to show the times and seasons of the principal food fishes of this 
part of the colony ; and if some one will take up a similar duty for a port 
in the north, say Auckland, and another for one in the middle of the 
colony, say Wellington, a very good idea may then be had of the whole 
question. 
The most important event of the past year in connection with my 
subject, was the passing of an Act regulating Fisheries, by the Colonial 
Legislature. It may be thought presumptuous on my part, but I must take 
a little credit in having at least assisted in bringing this about. A little 
stir has been induced, both.among the fishermen and the dealers, by the 
fact of some one being in their midst who was “ taking notes.” During the 
past year or two I have been in frequent communication with the dealers, 
as wellas by paragraphs in the Press, urging the necessity of steps being 
taken to preserve the fisheries in the harbour from utter destruction, by 
either refusing to take from the fishermen any fish under a certain size, or 
agreeing among themselves to refuse dealing with those who persisted in 
bringing undersized fish to town. The Act was rather a surprise, as no one 
here knew of its introduction to the House until it had passed its second 
reading, and in the hurry at the close of the session there was no time for 
* Vide Trans. N.Z. Inst., Vol. IX.; Art. LXVII. and Vol. X., Art. XLIV, 
