THE SALMON FAMILY. 413 



Another fish inhabiting British lakes, Ullswater, Bala, 



and Loch Lomond among them, the Powan grows to a 



*Powanor weight of 4 Ibs. In colour it is dark blue 



G-winiad. above, silvery beneath. Large shoals of this 



fish approach the shores of the lakes in summer. 



The Vendace occurs in at least one Scottish loch. Far 



smaller than the last, it rarely exceeds a 

 *Vendace. , , , . , / __ 



length of 9 inches. It spawns in November, 



the female being the larger fish. 



The Pollan, on the other hand, is found in certain Irish 



loughs (Neagh, Corrib, &c.) and the Shannon, and grows 



to an average length of 6 inches. Unlike the 



preceding, it is occasionally taken with the fly, 



though the greater number are netted. It feeds on small 



fishes and molluscs; and spawns in winter among the 



rocks. 



\Coregonus oxyrhynchus, the " Houting " of Dutchmen, 

 is supposed to occur in some of our eastern and southern 

 estuaries along with the smelts. It has a long fleshy 

 snout, and grows to a length of at least 20 inches. It can 

 only be regarded as a wanderer to our waters.] 



The Grayling is an elegant fish, on the sporting qualities 

 of which there is much difference of opinion, and may 

 be distinguished from the rest of the family 

 by the many-rayed first dorsal fin. Like the 

 smelt, it has a peculiar odour. This solitary fish, fond 

 of clear cunning water, is particularly rapid in its move- 

 ments. In colour it is usually of a pale brown, silvery 

 below, with black spots on the head and body and light 

 on the fins, the latter exhibiting red bands in the spawn- 

 ing-time. The colours are subject to variation according 

 to season. The food of the grayling is generally supposed 

 to consist largely of small fishes and molluscs, as it is said 



