The Relation of Mollusks to Fish in Oneida Lake 299 
OUCLODSEOLCT 6... 0.5. «vs cay anes 2 in vial, 0.045 per cent of whole 
Cyclops serrulatus ........... 2 in vial, 0.045 per cent of whole 
Sida crystallina............... 3 in vial, 0.068 per cent of whole 
Simocephalus vetulus ........ 3 in vial, 0.068 per cent of whole 
Scapholeberis mucronata ..... 1565 in vial, 35.712 per cent of whole 
Bosmina obtusirostris ........ 2 in vial, 0.045 per cent of whole 
Chydorus sphericus .......... 5 in vial, 0.114 per cent of whole 
Polyphemus pediculus ........ 2800 in vial, 63.900 per cent of whole 
MOUS in aos vay age £ sdesspertenle Ge 4382 in vial, 99.997 per cent of whole 
It was noted that 50 young Small-mouthed Black Bass ate 
one per cent. of Scapholeberts. 
ORDER PHYLLOPODA, 
SUBORDER CLADOCERA. 
Faminy Sip. 
Sida crystallina Mueller. Oneida hatchery ponds (Bean, 
1914, p. 352). 
Famity Dapunip®. . 
Daphnia hyalina Leydig. From stomach of Perch. 
Simocephalus vetulus Mueller. Oneida hatchery ponds. 
(Bean, p. 352). 
Scapholeberis mucronata Mueller. Oneida hatchery ponds. 
(Bean, p. 352). 
Famity Bosminip2. 
Bosmina obtusirostris Sars. Oneida hatchery ponds (Bean, 
p. 352). 
Bosmina longirostris Mueller. From stomachs of Perch, 
Brook Silversides, and Golden Shiner. 
Famity LyNcripa. 
Alona species. From stomachs of Common Sucker, Common 
Bullhead, Pumpkinseed and Manitou. Darter. 
Chydorus sphericus Mueller. Oneida hatchery ponds (Bean, 
p. 352). 
