The Relation of Mollusks to Fish in Oneida Lake 147 
DIATOMACE®. OTHER ALG. 
Amphora. Anabaena. 
Arachnoidiscus. Aphanocapsa. 
Cocconeis. Caelastrum. 
Coconema. Cylindrocapsa. 
Coscinodiscus. Eudorina. 
Craspedodiscus. Glaeocystis. 
Cymbella. Leptothriz. 
Epithemia. Lyng bya. 
Fragilaria. Merismopedia. 
Gomphonema. Aldogonium. 
Melosira. . Oscillatoria. 
Navicula. Pandorina. 
Pleurosigma. Pediastrum. 
Surirella. Protococcus. 
Synedra. Rhaphidium, 
Triceratium. Scenedesmus. 
DESMIDACEZ, Pa hE a 
Tetraspora. 
Closterium. Ulothriz. 
Netrium. Vaucheria. 
Staurastrum. 
MiscELLANEOUS CONTENTS. 
Inorganic fragments, plant and animal debris, mold, ova 
and spermatozoa of other animals and of the same individual 
or species (the sperm living and in motion), and spores and 
swarm spores. 
In a recent work, Robertson (1915, pp. 99-104), indicates 
the food of a number of mollusks and the information is 
tabulated below for convenience. Campeloma decisum is 
said by this author to feed on decaying vegetable matter. 
