Coregonus

Coregonus, a genus of fishes in the salmon family, including numerous species found in fresh water and sometimes in the sea, especially near the coast. The body is compressed, the scales are of medium size, and the teeth are small or degenerate. They inhabit Arctic and north temperate regions, ranging from North America to Siberia. They are good for eating. C. oxyrhynchus in the Baltic and the south-east of the North Sea, C. lavaretus in the Baltic, C. fera in Swiss lakes, C. clupeoides in British lakes (the 'powan' of Loch Lomond, or Gwyniad, q.v.), C. pollan (the 'pollan') in Ireland, C. lucidus, &c. (the 'herring-salmon'), and C. sapidus or albus (the much-esteemed 'white fish') from North American lakes, are common representatives of the genus.