POWAN. 
Corcgonus Lacepedii, Yakeell; Br. Fishes, vol. ii, p. 151. 
This is one of the three fishes which have passed under the 
denomination of Fresh-water Herrings, from a supposed general 
resemblance to the well-known fish of the ocean j as the Pollan, 
already described, and the Char of Lake Melvyn are the others. 
By this name and that of Powan it appears to have been long 
known as a distinct species to the people living near the lake 
Lochlomond, in Scotland; but among men of science it appears 
to have been first described by the French naturalist Lacepede; 
whose name was attached to it by Dr. Parnell; from whose 
observations we obtain the most particular account of what is 
known of its habits. There does not exist any difficulty in 
distinguishing this fish from others with which it may have 
been confounded, as will appear from the description we are 
able to supply; and which, together with the figure of it, have 
been taken from an example, for the possession of which we 
have the pleasure of acknowledging our obligation to the kindness 
of Robert Embleton, Esq., of Chat Hill, in Northumberland; 
to whom also I shall have great pleasure in offering a like 
acknowledgment in reference to other kinds of the fresh-water 
fishes of the remoter parts northward of the united kingdom. 
Dr. Parnell says, “ihese fish are found in Lochlomond in 
great numbers. They are caught from the month of March 
until September with large drag-nets, and occasional instances 
have occurred in which a few have been taken with a small 
artificial fly: a minnow or 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 shore in search oi 
food, and rippling the surface of the water with their fins as 
they proceed. In this respect they resemble in their habits 
