THE SALMON FAMILY. 365 



THE POWAN. 



(Coregonus Cepedei*.) 



Although there are certain points of resemblance be- 

 tween this fish and the Pollan of Ireland, it may be readily 

 distinguished from it by the peculiar form of its mouth, a 

 representation of which in two points of view, and con- 

 trasted with the same parts in the Pollan (both of the 

 natural size), is annexed. In the Powan the greater depth 

 of the upper lip and the large size of the superior maxil- 

 lary bones will be at once remarked. 



In Loch Lomond these fish exist in great numbers, and 

 are called by the natives Powans or Fresh-water Herrings. 

 They are taken with drag-nets from March until September, 

 and in rare instances have been killed with a small arti- 

 ficial fly : a minnow or natural bait they have never been 

 known to touch. Early in the morning and late in the 

 evening large shoals of them are observed approaching the 

 shores in search of food, and rippling the surface of the 

 water with their fins as they proceed, resembling in this 

 respect the Vendace of Lochmaben and the salt-water 

 * Cepedei, of Lac^pede, Lat. 



