1 66 Salmon at the Antipodes. 



but some trout will spawn when they are only 

 about a year old. 



The hybridization of the different species of 

 salmonoids has been tried successfully, and 

 the hybrids are found to be fertile in every 

 case where they have been observed. 



In a paper read before the Society d'Accli- 

 matation of France in September, 1877, by 

 M. Eico, director of the establishment of pis- 

 ciculture of Kuisseau (Seine-et-Oise), details 

 are given of a remarkable experiment, in which 

 the eggs of the ombre-chevalier — a salmonoid 

 inhabiting several of the Swiss lakes, with 

 habits similar to that of the Salmo fario — 

 were fecundated with the milt of the salmon 

 trout. These ova were hatched in January, 

 1873, and the alevins had grown rapidly, being, 

 at the age of six months, three inches and 

 a half long ; at 22 months, averaging seven 

 inches ; at 34 months, 11^ inches ; and at 42 

 months, over 13 inches. The females of this 

 new variety produced eggs at the age of 22 

 months ; but as the males had already shed 

 their milt, that of a male trout was used 

 to fertilize the eggs, and these were hatched 

 successfully; the alevins made more rapid 



