68 



Genus 34. Coregonus, L. 



White Fish, 



GO. Coregonus artedi, Le Sueur. — Lake Herring; Cisco; Michigan Her- 

 ring. 



Extremely abundant in Lake Michigan; occurringr also in the small lakes 

 of Indiana and Wisconsin (where it is known as the Cisco) but not in those 

 of Illinois. 



6L Corefjonus clupeiformis, Mitch.— Common White Fish. 



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

 deeper water outside the limits of this State. 



Family XVI] . DOROSOMATID.E. (The GizzardJShads.) 



Genus 35. Dorosoma, Raf . 



62. Dorosoma cepedianum, Le Sueur. — Gjzzard Shad; Hickory Shad;ISkip 

 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^E. (The Herrings.) 

 Genus 36. Clupea, L. 

 Herrings. 



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



(Bui. II, 55; Pomolobus 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 intro- 

 duced, through the canal, into Lake Michigan. 



Family XIX. HYODONTID.E. 



Genus 37. Hyodon, Le Sueur. 



Moon Eyes. 



64. Hyodon tergisus, Le Sueur. — Moon Eye; Toothed Herring. 



A moderately common fish in the Illinois, Mississippi and Ohio Rivers, but 

 not occurring in smaller streams. 



65. Hyodon alosoides, Raf. 



Taken by us only in Galena River, in extreme Northern Illinois. 



