98 



FISH GALLERY. 



Quinnat. 



American Charr, Salmo fontinalis, 281, which the Americans 

 call their " Brook Trout," has been introduced with success into 

 Britain, as also has the Rainbow Trout, Salmo irideus, 282, but 

 the colours of the acclimatised Rainbow Trout are not so brilliant 

 as those of the fishes in their native mountain streams in the 

 Rocky Mountains. 



The Namaycush or Lake Trout of North America, Salmo 

 (Cristivomer) namaycush, 285, is a non-migratory Trout, with 

 deeply-forked tail fin and stroug teeth, inhabiting all the Great 

 Lakes of the northern part of North America. The fish is grey, 

 not brown as are most non-migratory Trout ; it is a sluggish, 

 heavy-looking, ravenous fish, attaining an average weight of 15 to 

 20 lbs. The North Pacific Salmon or Quinnat Salmon (1099, near 

 Table 25), has more fin-rays in the anal fin than our Salmo, and 

 is placed in a separate genus, Onchorhynchus. It is migratory, 

 and similar in habits to our Salmon and Sea Trout. A large 

 proportion of the tinned Salmon that is sold in England is the 

 flesh of the Quinnat Salmon of British Columbia and Alaska. 

 The average weight of the fish is 22 lbs., but individuals of 70 to 

 100 lbs. are occasionally taken. 



The genus Coregonus includes the various White-fish, fishes of 

 the northern parts of temperate Europe, Asia, and North America, 



Fig. 51. — Yendace, Coregonus vandesius. 



and mostly lacustrine and rigidly localised, although a few are 

 anadromous in habit. The mouth is smaller and shorter than 

 that of Salmo, the maxillary bone not extending back below the 



