FOOD OF THE SHORE FISHES OF CERTAIJ't WISCONSIN LAKES. 265 



pupa, 15; Orthocladius sordidellus pupae, 9.8; Palpomyia longipeiinis pupse, i; Probezzia pallida 

 pupa, 0.2; adult midges, +; Corixa adults, 11.4; Camponotus adult, o.i; mites, 0.2; Lebertia, 2; 

 Hyalella, 8.1; ostracods, o.i; Eurycercus, 2.5. 



Summary. — Food: Insect larvae, 50.5; pupse, 26; adult insects, 11.5; mites, 2.2; amphipods, 8.1; 

 ostracods, 0.1; cladocerans, 2.5. 



Station 28; June 17; number examined, 10. Length: Maximum, 83; minimum, 39.5; average, 

 58.9. Food: Insect larvae, 0.5; Chironomus tentans larvae, 5.8; C. lobiferus larvae, 1.4; Orthocladius 

 sordidellus larvae, 26; Probezzia pallida larvae, 1.5; Corethra larvae, 0.5; May-fly nymphs, 3.6; Ecdyu- 

 rus maculipennis nymphs, 11. 5; Caenis diminuta nymphs, 3.5; Enallagma antennatum nymphs, 2; 

 chironomid pupae, 5; Chironomus lobiferus pupae, i.i; C. tentans pupae, 0.2; Orthocladius sordidellus 

 pupae, 20.9; Corixa adults, 10.7; mites, 0.2; Cyclops, 0.5; Eurycercus lamellatus, 4.8; Camptocercus, 0.1. 



Summary. — Food: Insect larvae, 55.7; pupae, 27.2; adult insects, 10.7; mites, 0.2; copepods, 0.5; 

 cladocerans, 4.9. 



Station3; June 24; number examined, 10. Length: Maximum, 68.5; minimum, 44; average, 54.8. 

 Food: Tanypus monilis, 1.6; Chironomus tentans larvae, 6.3; C. digitatus larvae, 0.4; C. lobiferus larvae, 

 14; Palpomyia longipennis larvae, 4.3; Orthocladius sordidellus larvae, 25.8; Probezzia pallida larvae, 

 13.8; Leptocella larva and case, 2.8; May-fly nymphs, 2.3; Ecdyiuns nymphs, 6.2; Peltodytes eden- 

 tulus larvae, 0.3; Chironomid pupae, 1.5; Chironomus digitatus pupae, 0.5; Orthocladius sordidellus 

 pupae, 3.4; Probezzia pallida pupae, 0.7; sawfly adult, 0.2; Chironomus lobiferus adults, 7.7; mites, 0.1; 

 Hyalella, 0.9; ostracods, 0.1; Eurycercus, 0.3; Planorbis, 5.2; Physa, 0.3. 



Summary. — Food: Insect larvae, 78; pupae, 6.1; adult insects, 7.9; amphipods, 0.9; ostracods, 0.1; 

 cladocerans, 0.3; snails, $.$. 



Station 18; July 3; number examined, 10. Length: Maximum, 65; minimum, 33.8; average, 45.4. 

 Food: Tanypus monilis larvae, 0.3; Chironomus viridis larvae, 0.3; C. digitatus larvae, 4.4; C. palliatus 

 larvae, 6.3; Cricotopus trifasciatus larvae, 0.2; Orthocladius sordidellus larvae, 3.4; Procladius larvae, 12; 

 May-fly nymphs, 0.2; Peltodytes edentulus larvae, 0.2; C. lobiferus pupae, 2.7; C. tentans pupae, 1.2; 

 mites, 3.2; Hyalella, 9.8; cladocerans, 8.4; Eurycercus, 47.1. 



Summary. — Food: Insect larvae, 27.3; pupae, 3.9; mites, 3.2; amphipods, 9.8; cladocerans, 55.5. 

 Station 23; July 9; number examined, 5. Length: Maximum, 80; minimum, 54; average, 65.7. 

 Food: Insect larvae, 15; Chironomus tentans larvae, 4.2; C. fulviventris larvae, 3.4; Leptocella uwarowii 

 larvae, 3.6; May-fly nymphs, 0.4; chironomid pupa, 12; Chironomus viridis pupae, 0.6; Corixa adults, 2; 

 leaf-hopper, 2; mites, 0.2; Hyalella, 19.4; Physa, 28.2; leech, 11. 



Summary. — Food: Insect larvae, 26.6; pupae, 12.6; adult insects, 4; mites, 0.2; amphipods, 19.4; 

 snails, 28.2; leech, 11. 



Station 13; July 23; number examined, 2. Lengths; 60, 37. Food; Insect larvae, i; Probezzia 

 glaber larvae, 25; chironomid larvae, i; C. tentans larvae, 3; C. lobiferus larvae, 12; Probezzia glaber pupae, 

 2.5; Hyalella, 44; Chydorus sphaericus, 1.5; Physa, 32.5. 



Summary. — Food: Insect larvK, 19.5; pupae, 2.5; amphipods, 44; cladocerans, 1.5; snails, 32.5. 



Station 23; July 23; number examined, 3. Lengths: 73,71,65. Food: Chironomus viridis larvae, 

 II. 3; C. vulviventris larvae, 37.6; C. tentans larvae, 8.3; Pelopia monilis larvae, 6; Probezzia glaber larvae, 

 0.6; Hydroptila larvae, 0.3; Simulium vittatum larva, 1.6; Peltodj^tes edentulus larvae, 0.6; Chironomus 

 viridis pupae, 4.3; Arrhenurus, 0.1; Hyallela, 5; Ancylus, 0.3; Planorbis, 0.3; Physa, 21.6; snail eggs, 0.6. 



Summary. — Food: Insect larvae, 66.3; pupae, 4.3; mites, 0.1; amphipods, 5; snails, 22.8. 



Station 7, in swamp along shore; August 25; number examined, 4. Lengths: 30, 27.5, 17.8, 15. 

 Food: Tanypusmonilis larvae, 3. 7; Caenis diminutanymphs, 1.2; Corixaadult, 1.2; Cyclops, 30.1; Cantho- 

 camptus, 2.5; Bosmina longirostria comuta, 28.4; Camptocercus, 5; Eurycercus, 20; algae, 9. 



Summary. — Food; Insect larvae, 4.9; adult insects, 1.2; copepods, 30.1; cladocerans, 53-41 algae, 9- 



Grand summary for igi4and igi 5. — Number examined, 149. Length; Maximum, ii5;minimum, 15; 

 average, 51.1. Food; Insect larvae, 38; pupae, 6; adult insects, 2.2; mites, 0.7; aquatic isopods, +; 

 amphipods, 14.4; ostracods, 0.4; copepods, 7.9; cladocerans, 16.6; gastropods, 4.5; oligochaetes, 0.1; 

 leeches, 0.6; nematodes, -f ; rotifers, -f; plants, 2.9; algae, 2.3; silt and debris, 2.2. 



The bluegill feeds mostly on insects (46.2 per cent) and entomostracans (24.9 per cent). Its shape 

 and its food indicate that it feeds much among water plants. Forbes and Richardson (1908) found the 

 food to consist of a trace of fishes, some snails, 45 per cent insects, and many medium-sized crustaceans. 

 They state that this species eats more large insect larvae than any other sunfish. Hanldnson (1908), 



