THE CALIFORNIAN SALMON. 
121 
There are fourteen rows of scales from behind the adipose 
fin forward to the lateral line, and twenty-five rows above 
the lateral line. None of these fish have yet commenced 
to put on their silvery coat. 
The smaller Tasmanian salmonoids measure from 3^ 
inches to 6^ inches. The dorsal fin has two or three rows 
of bright red spots, intermixed with a few black ones. 
The adipose fin is of a deep red colour. The caudal fin 
has red tips slightly tinged with black at the extremities. 
The pectoral, ventral, and anal fins are yellow. There are 
eleven to thirteen parr-marks plainly distinguishable. On 
the sides and back are many bright red spots, intermixed 
with black ones. Two of this size, which had assumed the 
silvery coat at about ten months old were unfortunately 
carried away by a flood. They were of more elegant form 
than the others, and distinct in appearance. Their length 
was about 5 inches. The scales did not appear to be 
deciduous. The parr-marks were almost covered by the 
silvery scales. The dorsal and caudal fins had a dusky 
margin. These two fish had been placed in a small pond 
by themselves that their development might be easily 
observed. Some of these fish are probably Sahno fario, and 
a few may prove to be Salmo salar^ as the two silvery fish 
which escaped probably were. The warmth of the water, 
together with high feeding, have caused a rapid develop- 
ment and growth of these fish, especially the Salmo trutta, 
which are much farther advanced than fish of the same 
age in England ; although the milt in the males which 
were examined was not yet developed. The Tasmanian 
fish above referred to were about eleven months old when 
examined on the 1st of August. 
AQUICULTUEE. 
Water is one of the natural elements which, next to the 
air we breathe, is of the most importance to the human 
