278 BULLETIN OK THE BUREAU OF FISHERIES. 



2. Fishes feeding upon entomostracans . — Abramis crysolcucas , 76 per cent; Pomoxis 

 sparoides, 53.7 per cent; Notropis heterodon, 44.9 per cent; Ameiurus nebulosus, 42.1 per 

 cent; Lebidesthes sicculus, 40.1 percent; Eticalia inconstans, 38.5 percent; Fundulus 

 diaphanus menona, 36 percent; Umbra limi, 31.3 percent; Pimephales notatiis, 28 per 

 cent; Lepomis incisor, 24.9 per cent; Micropterus salmoides, i8.i percent; Schilbeodes 

 gyrinus, 18 per cent; Perca flavescens, 16.9 per cent. 



3. Fishes feeding upon fishes and frogs. — Stizostedion vitreum, 100 per cent; Amiatus 

 ccUva, 90.1 per cent; Lepisosteus osseus, 88.8 per cent; Esox lucius, 84 per cent; Percina 

 caprodes, (eggs) 27.8 per cent; Micropterus dolomieu, 14.7 per cent; Eupomotis gibbosus, 

 (eggs) 9.4 per cent; Micropterus salmoides, 8.2 per cent; Pomoxis sparoides, 5.7 per cent; 

 Perca flavescens, 3.5 percent; Roccus chrysops, 4.2 percent; Ambloplites rupestris, 2 

 per cent. 



4. Fishes feeding upon insect pupa and adult insects. — Labidesthes sicculus, 44.6 

 percent; Micropterus dolomieu, 39.7 percent; Micropterus salmoides, 31.2 percent; 

 Ambloplites rupestris, 23.3 percent; Eucalia inconstans, 18.1 percent; Roccus chry- 

 sops, 14.2 per cent; Notropis heterodon, 14. i per cent; Umbra limi, 13 per cent; Pomoxis 

 sparoides, 12.7 percent; Eupomotis gibbosus, 10.3 percent; Pimephales notatus, 10.3 

 per cent; Ameiurus melas, 9.9 per cent; Cyprinus carpio, 9.6 per cent; Lepomis incisor, 

 9.2 per cent; Schilbeodes gyrinus, 9 per cent; Ameiurus nebulosus, 6.5 per cent; Fundulus 

 diaphanus menona, 4.8 percent; Percina caprodes, 3.9 percent; Perca flavescens, 3 

 per cent. 



5. Fishes feeding upon amphipods, isopods, and mites. — Cottus ictalops, 59.1 per 

 cent ; Etheostoma iowce, 58 per cent ; Etheostoma flabellare, 48 per cent ; Perca flavescens, 

 24.6 percent; Lepomis incisor, 15.1 percent; Fundulus diaphanus menona, 14. i per 

 cent; Micropterus salmoides, 13.9 per cent; Am,eiurus nebulosus, 11. 8 per cent; Schilbe- 

 odes gyrinus, 10.3 percent; Eupomotis gibbosus, 9 percent; Cyprinus carpio, 8.7 per 

 cent; Umbra limi, 7.8 percent; Pomoxis sparoides, 7.5 percent; Eucalia inconstans, 

 5.2 per cent; Boleosoma nigrum, 5.1 per cent; Roccus chrysops, 5 per cent; Percina cap- 

 rodes, 4.6 per cent; Esox lucius, 2.5 per cent. 



6. Fishes feeding upon plants, including algce. — Eupomotis gibbosus, 25.5 percent; 

 Pimephales notatus, 20.2 percent; Notropis heterodon, 15.6 percent; Umbra limi, 13.6 

 percent; Ameiurus melas, 7.3 percent; Fundulus diaphanus menona, 6.4 per cent; 

 Schilbeodes gyrinus, 6 percent; Lepomis incisor, 5.2 percent; Abramis crysoleucas, 

 4.5 per cent; Eiwalia inconstans, 4.4 per cent; Labidesthes sicculus, 4 per cent; Amblo- 

 plites rupestris, 3.3 per cent. 



7. Fishes feeding upon mud, silt, atid fine debris. — Pimephales notatus, 20 per cent; 

 Notropis heterodon, 6.5 percent; Ameriurus melas, 6.3 percent; Percina caprodes, 5.7 

 percent; Fundulus diaphanus menona, 4.2 percent; Eticalia inconstans, 3.7 percent; 

 Catostomus commersonii, 3.6 per cent; Boleosoma nigrum, 3.1 per cent; Schilbeodes gyri- 

 nus, 3 per cent. 



8. Fishes feeding upon molluscs. — Eupomotis gibbosus, 25.8 percent; Cyprinus 

 carpio, 6.9 per cent; Lepomis incisor, 4.5 per cent; Fundulus diaphanus menona, 3.9 per 

 cent; Ameiurus melas, 3.7 percent; Perca flavescens, 3.7 percent; Eucalia inconstans, 

 3.7 per cent; Etheostoma iowce, 3 per cent; Umbra limi, 2.4 per cent. 



9. Fishes feeding upon crayfish. — Amploplitcs rupestris, 16. i per cent; Amiatus calva, 

 9.4 per cent; Ameiurus m^las, 6.1 per cent; Micropterus salmoides, 2.6 per cent. 



