112 SALMONIA. [FOURTH DAY. 



bred there, and some yellow fluid ; but, I believe this 

 is generally owing to their being caught at the time of 

 migration, when they are travelling from the sea 

 upwards, and do not willingly load themselves with 

 food. Their digestion appears to be very quick, and 

 their habits seem to show, that after having taken a 

 bait in the river they do not usually seek another till 

 the work of digestion is nearly performed : but when 

 they are taken at sea, and in rivers in the winter, food, 

 I am told, is sometimes found in their stomachs.* 

 The sea trout is a much more voracious fish, and like 

 the land trout, is not willingly found with an empty 

 stomach. 



PHYS. I presume the sea trout is the fish called 

 by Linnaeus, in his Fauna, Salmo Eriox ? 



HAL. I know not: but I should rather think 

 that fish a variety of the common salmon. f 



PHYS. But there are surely other species of 

 salmon, that live in the sea and come into our rivers : 

 I have heard of fish called grays, lull trout, scurfs, 

 marts, jpeales, and wkitlings. 



HAL. I have never been able to identify more than 



* [By an experienced salmon fisher on the Tay, I have heen informed 

 that he often found food in the stomach of the Salmon, such as minnow, 

 small trouts, and earth worms ; and that not unfrequently he has 

 witnessed it feeding greedily, taking a hait ravenously, not repulsed 

 even hy the prick of the hook. J. D.J 



f See note, p. 64. 



