TENTH ANNUAL REPORT. 



109 



The hatchery is now kept in operation during the greater 

 part of the year, heing suppHed in the summer season with the 

 eggs of the Rocky Mountain trout, a species which spawns early 

 in the summer. 



The various species hatched to the present time are : Atlantic, 

 landlocked, humpback, and quinnat salmon ; brook, steelhead, 

 brown, rainbow, lake, and black-spotted trout; whitefish, shad, 

 pike-perch, and yellow perch. 



In the January number of the New York Zoological Society 

 Bulletin attention was called to the successful rearing in captivity 



QUEEX TRIGGER FISH. 



at the Aquarium of the whitefish, an important food fish, usually 

 liberated from fish-cultural stations soon after hatching on account 

 of the difficulty of supplying the young fry with live food. This 

 trouble was overcome at the Aquarium by feeding with the larvae 

 of mosquitoes which were gathered with gauze nets from stag- 

 nant ponds in the vicinity of New York. There are now on exhi- 

 bition numerous fine specimens of this species which have passed 



