PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1924 367 



The salmons, trouts, whitefishes, etc. (Salmonid^): 



Common whitefishes, ( Coregonus albus and C. clupeaformis ) . 



Cisco ( Argyrosinnus artedi ). 



Chinook salmon, king salmon, quinnat salmon {Oncorhynchus tschawytscha) . 



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 {Sahno gairdneri). 



Atlantic salmon {Sahno scilar). 



Landlocked salmon ( Salmo sebago ) . 



Rainbow trout {Sahno shasla). 



Black-spotted trout, redthroat trout {Salmo leivisi). 



Loch Lev en trout { Salmo levenensis). 



Lake trout, Mackinaw trout {Cristivomernamaycush). 



Brook trout ( Sali'diJius fontinalis ) . 

 The graylings (Thymallid^) : Montana grayling {Thymallus montanus). 

 The smelts (Osmerid^): Smelt {Osmerus mordax). 

 The pikes (Esocid^): 



Little pickerel {Esox vermiculatus) . 



Common pickerel {Esox lucius). 

 The sunfishes, black basses, and crappies {Centrarchidx): 



Crappies {Pomoxis annularis and P. sparoides). 



Large-mouth black bass {Microplerus salmoides) . 



Small-mouth black bass {Micropterus dolomieu). 



Rock bass {Ambloplites rupestris). 



Warmouth bass, goggle-eye {Chasnobryttus gulosus). 



Green sunfish {Apomotis cyanellus). 



Red-breasted bream {Lepomis auritus). 



Bluegill sunfish {Lepomis pallidus). 



Long-eared sunfish {Lepomis megalotis) . 



Common sunfish {Eupomotis gibbosus). 

 The perches (PERCiOiE): 



Pike perch {Siizostedion vitreum). 



Sanger {Siizostedion canadense) . 



Yellow perch, ringed perch {Perca flavescens) . 

 The sea basses (Serranid^) : White bass {Roccus chrysops). 

 The drums (Sci^NiDiE): Fresh-water drum, lake sheepshead {Aplodinotus 



grunniens) . 

 The cods (GADiDiE): 



Cod {Gadus callarias). 



Haddock {Melanogrammus aeglefinus) . 



Pollock {Pollachius virens). 

 The Flounders (Pleuronectid^e): Winter flounder, American flatfish {Pseudo' 

 pleuronectes americanus). 



OUTPUT 



The combined work of the fish-cultural and the rescue stations of 

 the bureau during the fiscal year 1924 resulted in a gross output of 

 5,361,947,981 eggs, fry, and fingerling fish. Losses in transportation 

 amounted to 137,327, leaving a net total of 5,361,810,654 fish and 

 eggs actually distributed, an increase of 1,046,951,625 over the net 

 output of the preceding year. About 90 per cent of the output con- 

 sisted of such commercial species as the salmons, whitefishes, cisco, 

 pike perch, yellow perch, shad, herring, cod, haddock, pollock, and 

 flounder. With the exception of a few shipments furnished to State 

 fish commissions, the entire output of the commercial species was 

 returned to the waters from which the egg collections were made. 



26187—25 2 



