264 BULLETIN OF THE BUREAU OF FISHERIES. 



August 2j. — Depths, 4.6, 11. 5 m.; number examined, 2; lengths, 550, 495. Food: Perch, 25; 

 shiners, 15; fish remains, 60. 



August 26. — Number examined, 3; lengths, 570, 635, 665. Food: Fish remains, 100 (2 empty). 



August 2^. — Number examined, 2; lengths, 307, 565. Food: Fish remains, 100 (i empty). 



August 28. — Number examined, 5; lengths, 300 to 475, average, 393. Food: Minnows, 100 (3 

 emptj'). 



September 2. — Number examined, 2; lengths, 485, 600. Food: Fish remains, 100 (i empty). 



September 3. — ^Ntunber examined, 3; lengths, 211, 490, 540, average, 414. Food, Fish remains, 

 100 (i empty). 



Summary. — Nxunber examined, 24; lengths, 100 to 665, average, 445. Food: Perch, 2.5; shiner, 

 21.5; mirmow, 15; fish remains, 58; ostracods, i; plants, 2. 



Eupomotis gibbosus (Linnaeus). Pumpkinseed. 



September I. — Mouth of Spring Lake Creek; number examined, 4; lengths, 163 to 168, average, 165. 

 Food: Chironomid larvae, 2; dragonfly nymphs, 25; Planorbis, S3-3'' Physa, 17.7; Valvata, 2; Sphae- 

 riidse, 5; Herbobdella punctulata, 15. 



September 2. — Near mouth of Spring Lake Creek; number examined, i; length, 73. Food: Chi- 

 ronomid larvae, 92; Sphaeriidae, 8. 



Summary. — Number examined, 5; average length, 146. Food: Insect larvae and nymphs, 59-5; 

 snaih, 26.5; small clams, 6.5; leeches, 7.5. 



Fundulus diaphanus menona (Jordan and Copeland). Top minnow. 



August 1'$. — Number examined, i; length, 52. Food: Hyalella, 100. 



.August iS. — Number examined, i; length, 52. Food: Chironomid larvae, 60; chironomid pupae, 19; 

 gordiacean in chironomid pupae, i; sand, 20. 



August 20.— Number examined, 2 ; lengths, 46, 59. Food, Chironomid larvae, 10; chironomid pupae, 

 15; Hyalella, 25; Ceriodaphnia, 25; Pleuroxus, 1.5; Bosmina, 10; Acroperus, 15; ostracods, 2.5; sand, 10. 



August 21. — ^Number examined, 4; lengths, 50 to 53. Food: Chironomid larvae, 11. 3; chironomid 

 pupae, 23.8; Hyalella, 44.3; Ceriodaphnia, 14.3; Bosmina, 0.5; Chydorus, 1.5; ostracods, 0.5; sand, 4. 



.August 22. — Number examined, i; length, 55; Food: Caddisfly larvae, 45; Hyalella, 50; ostracods, 5. 



Augiist 23. — Number examined, 3; lengths, 18 to 53, average, 38. Food: Chironomid larvae, 30; 

 chironomid pupae, 6.7; Hyalella, 20.2; Ceriodaphnia, 8.3: Chydorus, 6.7; ostracods, 23.3; sand, 5. 



Summary. — Number examined, 12; lengths, 18 to 55, average, 44. Food: Chironomid larvae, 17.9; 



caddisfly larvae, 3.8; chironomid pupae, 13.7; Hyalella, 31.8; cladocerans, 16.6; ostracods, 6.4; gordiacean, 



o.i; sand, 5.9. 



Lepomis incisor (Cuvier and Valenciennes). Bluegill. 



August2S. — Number examined, 4; lengths, 164 to 186; average, 177. Food: Chironomid larvae, 1.3; 

 dragonfly nymphs, 0.3; Leplocerus dilutus larvK and cases, 13.3; collembolan, -f ; ants, 8.8; mite, +; 

 Hyalella, 66.7; Eiuycercus, +; Amnicola, 0.3; Ancylus, +; plants, 1.5; algae, 0.3; sand, 7.8. 



.August26. — Number examined, i;length, 176. Food: Chironomid pupae, 0.2; Chara, 99.6; plants, 

 0.2. 



August 2y. — Number examined, 3; lengths, 143 to 170, average, 160. Food: Leptocerus dilutus 

 larvae and cases, 58.3; crayfish, a-^; plants, 6.6; sand, 1.7. 



August 2g. — Spring Lake Creek; number examined, i; length, 173. Food: Dragonfly nymphs, 15: 

 insects, 40; seeds, 5; plants, 20; fine debris, 20. 



August 30. — Number examined, 2; lengths, 43, 157. Food: Chironomid larvae, 25; chironomid 

 pupK, 15; collembolan, 50; fine ddbris, 10. 



September /.—Spring Lake Creek; number examined, i; length, 175. Food: Sponge, 10; Myrio- 

 phyllum, 80; wild rice seeds, 10. 



September J. — Number examined, i; length, 172. Food: Melanoplus femur-rubrum , 7,$', cra)iish,65. 



September 4. — Number examined, 5; lengths, 164 to 188, average, 176. Food: Leptocerus dilutus 

 larvae and cases, 64.8; Physa, i; Planorbis, 0.2; Potamogeton, 7; plants, 17.6; algae, 6. 



Summary. — Number examined, 18; lengths, 43 to 188, average, 165. Food: Insect larvae, 2i\ 

 insect pupae, 1.7; adult insects, 12.9; mite, +; crayfishes, 9.2; amphiods, 14.8; cladocerans, +; snails, 

 0.5; sponge, 0.5; plants, 21.3; algae, 1.7; fine debris, 2.2; sand, 2.2. 



