4 EEPORT OF THE COMMISSIONER OF FISHERIES. 



The Graylings (Tiiymallid.e). 



* Montana Grayling {Tbi/maUns montanus). 

 The Mackerels (Scombrid^). 



* Common Mackerel {Scomber sro)nJ>r as). 



The Basses, Sun-fishes, and Crappies ( Centra rciiice). 

 "* § Crappie {Pomoxis annularis). 



* § Strawberry Bass, Calico Bass {Pomoxls sparoldes). 



* § Rock Bass, Red-eye, Goggle-eye {AmblopUtes rupcstrls). 



* § Warmouth, Goggle-eye {Chaenobryttus gulosus). 



* § Small-mouth Black Bass (Micropterus dolomieu). 

 " § Large-mouth Black Bass {Micropterus salmoides) . 



* § Blue-gill Sun-fish {Lepomis pallidus). 

 The Perches (Pekcid.e). 



* § Pike Perch, Wall-eyed Pike, Yellow Pike, Blue Pike {Stizostedion vilreum). 

 " § Yellow Perch {Perca flavescens) . 



The Sea Basses (Serranid.e). 



* Striped Bass, Rock-fish {Roccus lineatus). 



* White Perch {Morone americana) . 

 The Cods (Gadid.e). 



* Cod {Gad us callarias). 



* Pollock {PollacMus vircns). 

 The Flounders (Plevronectid.e). 



* Winter Flounder {Pseudopleuronectes americanus). 

 Crustaceans. 



* American Lobster [Ilomarus americanus). 



The Bureau long since discontinued the cultivation of carp, and does 

 not favor the further indiscriminate planting of this species; that 

 the demand for the fish is not satisfied, however, notwithstanding its 

 wide dispersal, is shown hy the numerous applications received from 

 all parts of the countr}^ for supplies of carp for private and public 

 waters. It is the practice to satisfy these requests 1)}' the substitution 

 of better native species, among which the cat-fishes may be mentioned. 

 The fishes of this family are adapted to such different conditions, are 

 so hardy and prolific, and arc so wholesome, that they arc among the 

 best fishes available for the stocking of certain waters. The demand 

 is increasing, and the Bureau is endeavoring to meet it by taking up 

 cat-fish culture incidentall}' and on a necessarily small scale at several 

 hatcheries; but the time seems to have arrived when a special station 

 for the cultivation of the cat-fishes is required. 



Various water animals are now under investigation that ma}' eventu- 

 ally lead to their wholesale propagation by the Bureau, among such 

 being the sea mullet, the most valuable fish of the South Atlantic and 

 Gulf States; the common blue crab; the diamond-back terrapin, and 

 the green sea turtle. 



THE OUTPUT SUMMARIZED. 



The number of fish and fertilized eggs distributed ]jy the Bureau in 

 1904 is given by species in the appended summary. The aggregate 

 output of 1,267,343,025 was divided as follows: Fertilized eggs, 



