182 ANGLING. 



ristically called the Round-tail in the river Annan, 

 and in common, however, with those of other 

 species its young are there and elsewhere named 

 Sea-trout. The Warkworth and Coquet trout of 

 Durham and Northumberland are the young of this 

 species, as are likewise the Whitlings of the Tweed, 

 or Berwick Trout of the London markets. But the 

 whitlings of all our Scotch rivers are not necessarily 

 the young of the Bull-trout, in as far as provincial 

 names are sometimes differently applied. We 

 have no doubt, however, that the Norway salmon 

 of our Sutherlandshire, and other northern fisheries, 

 is identical with the Bull-trout, that is, with Salmo 

 eriox, in the adult state, although some regard that 

 fish as a variety of the common Salmo solar. Ac- 

 cording to Dr. Parnell, the young of the Bull-trout, 

 when about nine inches in length, has the tail still 

 acutely forked ; but he observes, that when the 

 fish attains the length of twenty inches, the middle 

 ray of the tail is more than half the extent of the 

 longest ray of that organ, whereas the same ray in 

 the salmon is never half as long as the most length- 

 ened caudal ray at any age whatever. This in- 

 genious author has carefully described the nume- 

 rous varieties of the Bull-trout in his excellent 

 paper " On the Fishes of the Firth of Forth."* 



The mode of angling for this great migratory 

 trout is the same as that pursued for salmon. In 

 truth it is seldom killed in the adult state except 

 by accident, while the angler is casting for that 



* Memoirs of the Wernerian Natural History Society, vol. Tii. 



