SALMO.] PISCES (OSSEI) MALACOPT. 423 



vol. iv. pi. 91. The Grey, Will Hist. Pise. p. 193. Penn. Brit. 

 Zool. vol. in. p. 295. Id. (Edit. 1812.) vol. m. p. 394.? Sea 

 Trout, Penn. Brit. Zool. vol. in. p. 296. Id. (Edit. 1812.) vol. in. 

 p. 397. 



LENGTH. Two feet eight inches. 



DESCRIPT. (Form.) Closely resembling the Salmon, hut of a more 

 clumsy make : head and nape somewhat thicker : curvature of the pos- 

 terior margin of the gill-cover much less considerable ; margin of the 

 preopercle more sinuous; suhopercle larger with respect to the opercle, 

 the basal margins of both nearly parallel to the axis of the body ; a line 

 drawn from the extremity of the upper jaw to the furthest point of the 

 gill-cover passes beneath the eyes : vomer with only two or three teeth 

 at its anterior extremity : tail, beyond the adipose, more bulky and mus- 

 cular than in the Salmon: caudal even; in old fish rather convex: the 

 other fins similar : number of fin rays, 



D. 12 to 14 ; A. 11 ; C. 19, &c. ; P. 14 ; V. 10. 



Number of vertebrae fifty-nine. The female is characterized by having 

 shorter jaws than the male, with the teeth less developed. (Colours.) 

 For the most part similar to those of the Salmon, but the back and sides, 

 above the lateral line, more spotted ; the spots being most abundant in 

 the female. In the spawning season, the male acquires a red tinge : the 

 female remains gray. 



Migratory like the Salmon. A common species in the Tweed, where 

 the young are called Whitlings. Found also in the rivers of Wales, 

 Dorsetshire, and Cornwall. Apparently the same as the Sewen of Dono- 

 van, (S. Cambricus,) said by that author to be found in such great plenty 

 on the coasts of Glamorganshire and Caermarthenshire ; this last (which, 

 according to Donovan, rarely exceeds twelve or fifteen inches in length, 

 and from one to two pounds in weight) only a younger fish. It is also 

 probable that the /S. Hucho of Fleming, and other British authors, is not 

 distinct from the present species. Flesh inferior to that of the Salmon ; 

 cutting yellow. 



105. S. Trutta, Linn. (Sea Trout.) Gill-cover 

 slightly produced behind; the margin rounded: vomerine 

 teeth extending the whole way : caudal forked : back and 

 sides with X-shaped dusky spots: ventrals plain white. 



S. Trutta, Linn. Syst. Nat. torn. i. p. 509. Block, Ichth. pi. 21. 

 Turt. Brit. Faun. p. 103. Flem. Brit. An. p. 180. Jard. in 

 Edinb. New Phil. Journ. vol. xvm. p. 49. Trutta lacustris, 

 Will. Hist. Pise. p. 198. tab. N. 1. fig. 5. Truite saumonee, 

 Cuv. Reg. An. torn. n. p. 304. 



LENGTH. From one to two feet, or rather more. 



DESCRIPT. (Form.) Not so slender as a Salmon of the same size : 

 jaws nearly equal: teeth rather larger; those on the vomer extending 

 all along the ridge of the palate, and forming by pressure a groove in the 

 tongue between the two rows of lingual teeth : eyes rather nearer the 

 extremity of the snout : gill-cover more produced behind than in either 

 of the preceding species, the margin more curved ; basal margins of the 

 opercle and subopercle sloping obliquely upwards to form a considerable 

 angle with the axis of the body: position of the fins much as in the 

 .Salmon ; but the adipose rather larger ; the caudal, with the outer rays 



