150 Salmon at the Antipodes. 



ferocity towards the young of their own 

 species, are very objectionable amongst breed- 

 ing fish. 



The salmonoids that have been introduced 

 to Australian waters, including those of Tas- 

 mania, are the Salmo salar, Salmo trutta, 

 Salmo fario, Salmo eriox, and the Salmo 

 quinnat. 



The Salmo salar has larger scales than any 

 of the other salmonoids, and the number of 

 rows above and below the lateral line is a 

 means of identifying this fish. Its form is 

 the most elegant and symmetrical of any of 

 the genus ; and its speed and power in the 

 water, whether for swimming or leaping up 

 waterfalls, on its toilsome ascent to the spawn- 

 ing beds, are most remarkable. It attains to 

 a length of four or five feet. It has a single 

 longitudinal row of teeth on the vomer, or 

 bony plate in the roof of the mouth, which 

 are gradually lost at an early age, except 

 three or four commencing from behind and 

 coming towards the front of the mouth. The 

 dorsal fin has 14 rays, the anal 11, the pectoral 

 14 ; the vertebrae number 59 to 60 ; the pyloric 

 appendages are 53 to 77. The parr has 11 



