SYNOPSIS. 385 



at the base and extremity, the centre yellow ; dorsal and 

 ventral fins yellow at the base, bluish towards the ends ; 

 anal and caudal greyish yellow with violet edges. — Linn.^ 

 Yarr. Brit. Fish., i. 461. 

 Fam. XVI. Salmonidce. Body covered with scales; dorsal 

 fins two., the second small, adipose, and without rays. 



Gen. LXV. Salmo. Mouth cleft as far — or nearly as far — 

 as the eyes, the vomer, palatine, and maxillary bones armed 

 with teeth ; branehiostegous rays varying in number, but al- 

 ways exceeding eight ; ventral fins opposite the middle of the 

 first dorsal, second dorsal opposite the anal fin. 



Sp. 124. S. solar. The Salmon. Posterior margin of the 

 gill-cover forming the segment of a circle ; teeth on the 

 vomer confined to the anterior extremity. Fin-rays, D. 1 3 : 

 P. 12 : V. 9 : A. 9 : C. 19. Caudal forked ; ventrals dusky 

 on the side next the body. — Linn.^ Bloch, Ichth., pis. 20 

 «Sc 98 ; Pemi. Brit. Zool., iii. p. 382 ; Jenyns' Brit. Vert., 

 p. 421 ; Yarr. Brit Fish., ii. p. 1 ; Jardine''s Illust. Brit. 

 Salmonidce, pi. 7. Grilse, DUto, pis. 1,2. 8. Parr, Sal- 

 mon Fry, Trans. Eoy. Soc. of Edin., xiv. pi. 22. 

 Sp. 125. S. eriox. Bull Trout, or Grey Trout. Posterior 

 margin of the gill- cover but little curved ; teeth on the 

 vomer confined to the anterior extremity ; lower end 

 of the pectorals dusky ; caudal square at the extremity or 

 slightly convex, ventrals white. — Linn., Jenyns"" Brit. Vert, 

 p. 423 ; Yarr. Brit. Fish., ii. 71. S. cinereus vel griseus, 

 Willugh., S. cambricus, Don. Brit. Fish., iv. pi. 91. 

 Sp. 126. S. trutta. Salmon Trout. Gill-cover slightly pro- 

 duced behind, the margin rounded ; vomer and teeth not 

 confined to the anterior extremity, but extending far back ; 

 back and sides with X-shaped spots ; ventrals white ; tail 

 more or less forked. — Linn., Block., pt. i. pi. 20. Sea Trout^ 

 Petvn. Brit. Zool., iii. p. 397 ; Yarr. Brit. Fish., ii. 77 ; 

 Jeiiyns' Brit. Vert., p. 423. Jardine's Illust. Brit. Sahn.^ 

 pis. 3, 9, 10, 11. S. albus, Phinock, Fleta. Brit. An., p. 180. 

 Trutta salmonata, Willugh., p. 193. 

 Sp. 127. S.fario. Common Trout. Vomerine teeth extend 



2b 



