184 SALMONIDJl. 



lakes, and enters the rivers for the purpose of spawning. It 

 ascends the streams in the night-time, and returns to the lake 

 as soon as it has spawned. Dr. Todd informed me that it enters 

 the Severn River from Lake Huron about the 25th of October, 

 and retires to the depths of the lake again by the 10th of 

 November; but that, in some rapid rocky rivers of that lake, 

 individuals are taken throughout the year. A few spawn in the 

 summer. It is a gregarious fish, and resorts to different parts 

 of a lake, according to the season of the year, its movements 

 being in all probability regulated by its supply of food. In 

 winter the fisheries are generally established in deep water, 

 remote from the shore; toward the breaking up of the ice, they 

 are moved near to the outlets of the lake ; and in the summer 

 comparatively few Attihawmeg are caught, except what are 

 speared in the rivers. After the spawning period, the fall 

 fishery, as it is termed, is more productive in shallow bays and 

 on banks near the shore. I was informed in the fur countries, 

 that this fish preys on insects, and that it occasionally, though 

 rarely, takes a hook baited with a small piece of meat. Dr. Todd 

 found fresh-water shells and small fishes in the stomachs of the 

 Lake Huron AttihaAvmeg ; indeed, shelly mollusca — Helix, 

 Planorbis, Lymneus, Paludi7ia, &c. — appear to be a favourite 

 food of several Trout and Coregoni, both in Europe and 

 America." 



The fact of the Attihawmeg feeding on shell-fish is greatly 

 corroborated by the circumstance of its differing from all the 

 other known Coregoni in the extraordinary thickness of its 

 stomach, which resembles the gizzard of a fowl ; the same being 

 the case with the Gillaroo or shell-fish eating Trout of the Irish 



