SALMONID^. — cy. 273 



bones of head strong; posterior point of juncture of 

 opercle and sub-opercle much nearer the upper end of 

 the gill opening than to the lower anterior angle of the 

 sub-opercle; teeth strong; fins large, the caudal deeply 

 forked; color grayish, more or less spotted, varying much 

 with circumstances; D. 13 to 14; A. 12; V. 9; lat. 1. 

 220; length 2 to 6 feet. All the Great Lakes, north to 

 the Arctic Sea; a fish of much firmer flesh than the next. 

 (S. atneihi/sius, Mitch.) 



7. S. siscowef, Agassiz. Siscowet. L. Superior 

 Trout. Stout; head smaller, 4^ in length; posterior 

 point of junction of opercle and sub-opercle nearer to 

 the lower anterior angle of sub-opercle than to the upper 

 end of gill opening; fins and teeth well developed but 

 weaker than in S. namaycus^h', ventrals farther back; 

 caudal less forked; flesh fat and not firm; grayish, with 

 round white spots and markings; D. 12 to 14; A. 12; 

 lat. 1. 200. L. Superior, L. Huron. 



8. 5. confinis, DeK. Lake Trout of New York. 

 Blackish, with gray spots; body unusually short and 

 thick. Lakes of Central and Western N. Y. ; a doubtful 

 species. 



9. S. symmetrica, Prescott. Wixxipiseogee Trout, 

 Grayish and brown above, marbled with darker; white 

 below; body unusually slender and symmetrical. Lake 

 Winnipiseogee; also a doubtful species. 



2. OS ME R US, Linnteus. Smelts. 



1. 0. mordax, (Mitch.) Gill. Commox Smelt. Head 

 4 in length; eye 4 to 4:^ in head; teeth stout, especially 

 large on the tongue; transparent greenish, a silvery band 

 along sides; scales very loose; D. 11; A. 15; lat. 1. 66. 



18 



