1915] 
Pearse: Food of Small Shore Fishes 
19 
ium .1, Oligochaeta .9, Nematoda +, Difflugia +, plant tissue 5.8, Pleuro- 
coccus 1.6, filamentous algae 1, fine residue 5.7. 
Summary — Insect larvae 23.4, Insecta. 12, Hyalella .3, Ostracoda .5, 
Cyclops 16.3, Cladocera 19, Mollusca 10.8, Oligochaeta .9, Nematoda +, 
Protozoa -p, plants 8.4, residue 5.7. 
Station 12; October 6; No. examined, 21; length: — max. 50.3, min. 30, 
ave. 41.1. 
Food — May-fly nymphs 2.6, Culicid larvae 1.7, Tanypus larvae .2, Chiro- 
nomus larvae 1.6, Insecta 4.8, midges 16.2, mites 1.3, Ostracoda 10.8, 
Cyclops 24.4, Canthocamptus 2.8, Ceriodaphnia 5.6, Pleuroxus 3.5, Oli- 
gochaeta .1, plant tissue 4.5, filamentous algae .2, residue 2.4. 
Summary — Insect larvae 6.1, Insecta 21, mites 1.3, Ostracoda 10.8, 
Copepoda 37.2, Cladocera 9.1, Oligochaeta .1, plants 4.7, debris 2.4. 
Grand Summary — No. examined, 50; length: — max. 58.7, min. 28.4, ave. 
42.4. 
Food — Insect larvae 15.9, Insecta 16.5, mites 5, Hyalella .2, Ostracoda 
3.6, Copepoda 28.5, Cladocera 14.9, Mollusca 6.4, Oligochaeta .3, Nema- 
toda +, Protozoa +, plants 7.1, unidentifiable residue 4.6. 
Umbra limi (Kirtland). Mud Minnow. 
Station 10; September 7; No. examined, 50; length: — max. 105, min. 
30.4, ave. 38.9. 
Food — May-fly larvae 1.2, dipterous larvae 2, Chironomus larvae 9.1, 
Tanypus larvae 2.4, Caddis-fly larvae 1.2, Insecta 2.5, beetles 6.6, midges 
3.5, Diptera .8, Hemiptera .1, Podurans 1, spiders .1, mites .2, Ostracoda 
40, Cyclops .6, Pleuroxus .8, Camptocercus +, Dunhevedia +, Planorbis 
.6, Oligochaeta 1.3, Nematoda .8, Rotifera +, Vorticella .2, Arcella +, 
Difflugia + plant tissue 2.3, seeds .4, Pleurococcus 11.4, diatoms +, fila- 
mentous algae +. 
Summary — Insect larvae 17.9, Insecta 13.6, Arachnida .3, Ostracoda 40, 
Copepoda .6, Cladocera .8, Mollusca .6, Oligochaeta 1.3, Nematoda .8, 
Rotifera +, Protozoa .2, plants 15.9. 
Station 11; October 6; No. examined, 10; length: — max. 63.4, min. 42.5, 
ave. 48.3. 
Food — Dipterous larvae 3.5, Chironomus larvae 5.7, Tanypus larvae 
8, Caddis-fly larvae .3, Lepidopterous larvae 16.4, midges 28.7, Hemiptera 
2.5, mites +, Hyalella 1.5, Ostracoda 2.2, Chydorus 3.1, Simocephalus .1, 
Planorbis 1.5, Sphaerium 1, plant tissue 10, seeds .3, Pleurococcus 19, 
filamentous algae .1. 
Summary — Insect larvae 33.9, Insecta 31.2, mites +, Hyalella 1.5, Ostra- 
coda 2.2, Cladocera 3.2, Mollusca 2.5, plants 29.4. 
Grand Summary — No. examined, 60; length: — max. 105, min. 30.4, ave. 
38.8. 
