HABITS AND HAUNTS. 155 



line of union of the operculum with the sub-operculum and the 

 inferior margin of the sub-operculum are oblique, forming a 

 considerable angle with the axis of the body of the fish. The 

 posterior edge of the pre-operculum rounded, not sinuous, as in 

 the Bull Trout. The teeth are more slender as Avell as more 

 numerous than in the Salmon or Bull Trout ; those on the 

 vomer extending along a great part of the length, and indent- 

 ing the tongue deeply between the two rows of teeth that are 

 there placed, one row along each side. The tail is less forked 

 at the same age than that of the Salmon, but becomes like it 

 square at the end, after the third year. The size and surface of 

 the tail also is much smaller than that of the Salmon, from the 

 shortness of the caudal rays. 



"The habits of this species are also very like those of the 

 Salmon, and the females are said to run up the rivers before 

 the males. Sir William Jardine says : ' In approaching the 

 entrance of rivers, or in seeking out, as it were, some one they 

 preferred, shoals of this fish may be seen coasting the shoals 

 and headlands, leaping and sporting in great numbers, from 

 about one pound to three or four pounds in weight; and in 

 some of the smaller bays the shoal could be traced several times 

 circling it, and apparently feeding. They enter every river and 

 rivulet in immense numbers, and when fishing for Salmon, are 

 annoying for their quantity. The food of those taken with the 

 rod in the estuaries appeared very indiscriminate; occasionally 

 the remains of some small fish, which were too much digested to 

 be discriminated ; sometimes flies, beetles, or other insects, 

 which the wind or tide had carried out ; but the most 

 general food seemed to be the Talitris Locusta, or common 



