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Part III. — Twentieth Annual Report 



these small tadpole-like Ascidians in the stomachs of fishes, it is evident 

 that, though minute, they are by no means unimportant as fish food, and 

 especially when it is found that even comparatively large fishes feed upon 

 them. It is also interesting to note that the Sagittaj, which seem 

 undoubtedly to prey on the smaller larval and post-larval fishes, are them- 

 selves devoured, sometimes in quantity, by fishes of larger size. 



The annexed Table contains the names of the various organisms which 

 have been found to constitute the food of Whitings : — 



