73 
Family XVI. SALMONIDA. (Tue Satmov.) 
Genus 33. Sanvexuinus, Richardson. 
TRovT. 
59. Salvelinus namaycush, Walb.—Mackinaw Trout; Great Lake 
) Trout. . 
(Bul. Il, 54; Christivomer namaycush.) 
Occurs only in Lake Michigan. 
Genus 34. Correconus, L. 
WuitrE Fis. 
60. Coregonus artedi, Le Sueur.—Lake Herrinc ; Cisco; MicHiGAN 
HERRING. 
Extremely 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 WuitE F isu. 
_ Occurring only in Lake Michigan, and there, at present, chiefly 
in the deeper water outside the limits of this State. 3 
Family XVII. DOROSOMATIDA. (THE Gizzarp Suaps.) 
Genus 35. Dorosoma, Raf. 
62. Dorosoma cepedianum, Le Sueur. — G1zzaRD SHap; Hickory 
Suap; 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. CLUPEIDA. (Tue Herarines.) 
Genus 36. Ciupga, L. 
HERRINGS. 
63. Clupea chrysochloris, Raf.—Onto Swap; GOLDEN Swap. 
(Bul. Il, 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 introduced, through the canal, into Lake Mich- 
‘igan. . 
