97 



Family XVI. SALMONID^E. (The Salmon.) 



Genus 33. Salvelinus, Richardson. 



Trout. 



59. Salvelinus namaycush, Walb. — Mackinaw Trout; Great Lake "^J^ 



Trout. 



(Bui. II, 54; Christivomer namaycush.) 

 Occurs only in Lake Michigan. 



Genus 34. Coregonus, L. 

 White Fish. 



60. Coregonus artedi, Le Sueur. — Lake Herring ; Cisco ; Michigan ' >»' 



Herring. 



Eritremely abundant in Lake Michigan; occurring also in the 

 small lakes of Indiana and Wisconsin (where it is known as the 

 Cisco) but not in those of Illinois. 



61. Coregonus clupeiformis, Mitch. — Common White Fish. 



Occurring only in Lake Michigan, and there, at present, chiefly 

 in the deeper water outside the limits of this State. 



Family XVII. DOROSOMATID^. (The Gizzard Shads.) 

 Genus 35. Dorosoma, Raf. 



62. Dorosoma cepedianum, Le Sueur. — Gizzard Shad ; Hickory 



Shad; Skip Jack. 



One of the most abundant of our river fishes, and an extremely 

 valuable article of food for the game species. It is confined to the 

 larger rivers and their immediate tributaries, occurring in lakes and 

 ponds only when left by the overflow. It was reported some years 

 ago to have entered Lake Michigan by way of the canal, and to 

 have multiplied there at an extraordinary rate ; but I have not 

 lately heard of it in those waters, nor seen it in the catches of the 

 fishermen at South Chicago. We have obtained it from Galena to 

 Cairo and the Wabash Valley, in the Mississippi, Ohio, and Illinois 

 Rivers and their larger and more immediate tributaries, and in 

 ponds near St. Francisville. 



Family XVIII. CLUPEID^. (The Herrings.) 



Genus 36. Clupea, L. 



Herrings. 



63. Clupea chrysochloris, Raf. — Ohio Shad; GolDen Shad. 



(Bui. II, 55 ; Pomolohus chrysochloris.) 



One of the rarer fishes of our larger rivers, appearing in our 

 collections only from the Illinois, Ohio and Mississippi Rivers. 

 Said to have been introduced, through the canal, into Lake Michi- 

 gan. 



F. C— 7. 



