SYNOPSIS*. 



ing the whole way ; tail slightly forked ; bark rmd side* 

 with numerous red spots. Linn., Block., pt. i. pi. 22 ar:J 

 23 ; Penn. Brit. ZooL, iii. p. 399 ; Dm. Brit. Fish., pi. {{A. 

 Jenyns' 1 Brit. Vert., p. 424; Jardine's Illust. Brit. Salm.. 

 pis. 5 and 1 2 ; Yarr. Brit. Fish., ii. 85. 

 Sp. 128. S. Lerenensis. Lochleven Trout. Vomerine teeth 

 extending the whole way ; caudal fin lunate ; bod} with- 

 out red spots. WalJser, Yarr. Brit. Fish., ii. 117. S. 

 c?ecifer, Parnell, Mem. Wern. Soc., vii. 306, pi. 30. 

 Si/. 129. S. fero*. Great Lake Trout. Free edge of the 

 gill-cover rounded in the female, angular below in tl:e 

 male ; vomerine teeth extending the whole length ; body 

 covered with dark spots surrounded by a pale ring ; tail 

 square at the extremity. Jardine, Encyc. Brit., art. An-r/- 

 Itny, Illust. Brit. Salm. pi. 4 ; Yarr. Brit. Fish., ii. 110 ; 

 Jenyns* Brit. Vert., p. 425. 



Sp. 130. S. savelinus. The Charr. Vomerine teeth con- 

 fined to the anterior extremity ; axillary scale about one 

 third the length of the ventrals ; body spotted with white 

 or red. Linn., Don. Brit. Fish., pi. 112. Torgoch, Flem. 

 Brit. An. ; Yarr. Brit. Fish., ii. p. 121. S. umbla, Block, 

 pt. iii. pi. 101 ; Cwv. Reg. An. 5K alpinus, Block, pt. iii. 

 pi. 104 ; Don. Brit. Fish., pi. 61 ; Flem. Brit. An., 

 p. 180. 



GEN. LXVI. OSMERUS. Body elongated and rather slender, 

 scales not very large, vomerine teeth confined to the anterior 

 part ; insertion of the ventral fins on a line with the com- 

 mencement of the first dorsal ; branchiostegous rays eight. 

 Sp. 131. 0. eperlanus. Smelt, or Spirling. Under jaw 

 longest ; depth of the body not equal to the length of the 

 head ; first ray of the dorsal half-way between the point 

 of the upper jaw and the base of the middle caudal ray ; 

 pectoral fins long and narrow ; tail slender and deeply 

 forked. Fin-rays, D. 11 : P. 1 1 : V. 8 : A. 15 : C. 19. 

 Colour of the upper parts of the body pale ash-green, all 

 tiie other parts silvery white of a very brilliant lustre ; fins 

 e, tinged with yellow, ends of the caudal rays tipped 



