4 U. S. BUREAU OF FISHERIES. 
Part 1.—FISH PROPAGATION AND RESCUE. 
Summary of Operations. 
SPECIES OF FISHES HANDLED. 
During the fiscal year ended June 30, 1921, the bureau propagated 
and distributed some 48 species of fishes, as shown in the following 
list. Fishes rescued from overflowed lands in the Mississippi Basin 
and restored to original waters or distributed in other sections of the 
United States are included. 
LIST OF SPECIES HANDLED, 
THE CATFISHES (SILURID): 
Horned pout, bullhead (Ameiurus nebulosus). 
Marbled catfish (Ameiurus nebulosus marmoratus). 
Mississippi catfish (Ameiurus lacustris). 
. Spotted catfish, channel catfish (Jetalurus punctatus). 
Yellow catfish (Leptops olivaris). 
THE SUCKERS (CATOSTOMIDA) : 
Mongrel buffalofish (Ictiobus urus). 
Common buffalofish (Jctiobus cyprinella). 
Smallmouth buffalofish ([ctiobus bubalus). 
THE CARPS (CYPRINID) : 
Asiatic carp (Cyprinus carpio). 
THE SHADS AND HERRINGS (CLUPEIDZ): 
Shad (Alosa sapidissima). 
Glut herring (Pomolobus aestivalis). 
Skipjack (Pomolubus chrysochloris). 
THE SALMONS, TROUTS, WHITEFISHES, ETC. (SALMONID) ;: 
Common whitefishes (Coregonus albus and C. clupeaformis). 
Cisco (chiefly Leucichthys artedi). 
Chinook salmon, king salmon, quinnat salmon (Oncorhynchus tscha- 
wytscha). 
Chum salmon, dog salmon (Oncorhynchus keta). 
Humpback salmon, pink salmon (Oncorhynchus gorbuscha). 
Silver salmon, coho salmon (Oncorhynchus kisutch). 
Sockeye salmon, blueback salmon, redfish (Oncorhynchus nerka). 
Steelhead salmon (Salmo gairdneri). 
Atlantic salmon (Salmo salar). 
Landlocked salmon (Salmo sebago). 
Rainbow trout (Salmo shasta). 
Blackspotted trout, redthroat trout (Salmo Tewisi). 
Loch Leven trout (Salmo levenensis). 
Lake trout, Mackinaw trout (Cristivomer namaycush). 
Brook trout (Salvelinus fontinalis). 
THE GRAYLINGS (THYMALLIDA) :} 
Montana grayling (Thymallus montanius). 
THE SMELTS (OSMERID): 
Smelt (Osmerus mordaaz). 
THE PIKES (LucIIDz) : 
Little pickerel (Lucius vermiculatus). 
Common pickerel (Lucius leis). 
THE SUNFISHES. BLACK BASSES, AND CRAPPIES (CENTRARCHID) 
Crappies (Pomoris annularis and P. sparoides). 
Largemouth black bass (Micropterus salmoides). 
Smallmouth black bass (Micropterus dolomiew). 
Rock bass (Ambloplites rupestris). 
Warmouth bass, goggle-eye (Chenobryttus gulosus). 
Bluegill sunfish (Lepomis pallidus). 
Common sunfish (Hupomotis gibbosus). 
THE PERCHES (PERCIDA) : 
Pike perch (Stizostedion vitreum). 
Yellow perch (Perca flavescens). 
