36 
“ S em fish,” the glyphisodon viocellatus of Cuvier. They are found 
in pools among the rocks at low spring tides, both on the outer 
coast and in several localities inside the harbour of Port Jackson. 
It was first met with by Mr. Angas in a pool at Coogee Bay. 
The extreme brillance of the colour — gold and azure _ as the 
little creatures dart in and out amongst the cavities of the rocks, 
reminds one of jewels flashing in the sunlight. They are 
remarkably shy, and on the slightest noise, or the shadow of a 
person approaching the pool, they dart in and conceal themselves 
under the ledges and in the holes of the rocks ; hence they are 
very difficult to catch. They generally make their appearance 
on the coast about November, and remain till May; during the 
winter months they have not been seen. The one figured is the 
size of life ; they vary in size from one to four inches in length. 
As may be supposed, they are exquisite objects in the aquarium, 
.and eat small worms and crumbs of bread greedily when in 
confinement. 
One of the first acts of the Acclimatisation Society, when 
established, would be to introduce that fine and delicious fish of 
the perch tribe, called the Murray River cod, and which has been 
introduced with perfect success in the Yarra, and lately in Lake 
George, by the Honourable the Speaker, Mr. Murray, in 1848. 
Suitable localities could also be found in the Nepean, Hawkes- 
bury, and such rivers and lakes in the colony where it does not 
at present exist. 
Sharks and other fish might be procured for their oils, both for 
economical and medicinal purposes — and for the latter might 
equal the cod liver oil now imported in such large quantities. 
At present the dugong oil is used as a substitute, an animal 
belonging to the mammalia, and is said to be beneficial to invalids 
afflicted with strumous disease ; but its virtue, except as a 
nutritious diet, is very questionable. It is a curious fact that, 
while we regard this and cod liver oil as new remedies in pul¬ 
monary diseases, in 1790, Valliant, in his travels in Africa, says: 
“ At the Cape the fat of the hippopotamus is thought so 
wholesome that they affirm, if it is taken in regular portions, it 
will radically cure all disorders of the breast.” “ I kept some by 
lie also observes, “ that was not thicker than the oil of 
me 
cloves in cold weather.” This is also a property which obtains 
■in the dugong oil. Indeed the whole of these oils may be con¬ 
sidered more valuable as a nutritious diet, in those constitutions 
requiring it, than from any particular medicinal property they 
possess. The benefit derived from these fatty substances is 
