INDEX 



Catostomus commersonii, 332- 



333 

 Cat tails, 13, 20, 48, 68-70, 



83, 229, 237, 289; broad- 

 leaved, 68-70; narrow- 

 leaved, 70 



Cat-o'-nine-tails, 70 



Cat-tail flags, 70 



Cattle, 156 



Celery, wild, 39 



CentrachidcB (sunfishes and 

 bass), 3417343 



Ceratodaphnia, 165 



CeratophyllacecB (horn worts), 

 90-91 



Ceratophyllum, 90-91; demer- 

 sum, 90-91 



Ceratopogon, 292 



Chcetogaster, 146; diaphanus, 

 146 



ChcctopJiora, 52 



Chaoborus, 294 



Chara, 31, 226, 230, 239, 265, 

 266, 275, 356, T,85;fmgilis, 



53> 54, 55 

 CharacecB (stoneworts) , 53-54 

 Charr, 330 

 Chauliodes, 241 ; pectinicornis , 



244-245 

 Chelydra serpentina, 391-393 

 Chelydridce (snapping tur- 

 tles), 391-393 

 ChironomidcB, 283, 289-293 

 Chironomids, 75, 290-292 

 Chironomus, 248, 292, 293 

 Chirotenetes, 22, 207, 209- 



211, 257 

 Chloretone, as killing agent. 



Chloroform, as killing agent, 



40-41 

 Chloroperla, 196 

 Chlorophycece (green algae) , 47 

 Chlorophyll, 47 

 Chrysemys marginata, 399; 



picta, 397-399, 400 

 Ckrysomelidce, 278-281 

 Chrysops, 276, 299 

 Chub, 336 

 Chydoris, 146 

 Cladocera (water-fleas), 146, 



160, 161, 164-165 



Cladophora, 22 



Clam worms, 144 



Clams, 21, 158, 301; "finger- 

 nail", 301, 315, 321-323; 

 food for hydras, 116; pill-, 



323 

 Clemens, W. A., 211 



Clemmys guttata, 399, 400; 

 insculpta, 399-402 



Climacia, 241, 246 



Closterium, 49, 52 



Coelenterata , 11 2-1 18 



Colandra pertinax, 70 



Coleoptera (beetles), 179, 190, 

 261-281; key to families, 

 264-265 ; ChrysomelidcB, 

 278-281; Dytiscidce, 266- 

 271; GyrinidcB, 271-273; 

 Haliplidce, 265-266; Hy- 

 drophilidcE, 273-277; Pse- 

 phenidcE, 277-278 



Collecting, equipment, 26- 

 30; where and how, 30-36 



Collembola (springtails), 179, 

 190-192 



ColubridcB (water snakes), 

 405-406 



Comstock, J. H., 278 



Copepoda (copepods), 160- 

 161, 166-167 



Coptotomus, 268-269 



Cordulegaster, 21, 34 



Corethra, 294 



Corixa alternata, 239 



CorixidcB (water boatmen), 

 227, 239-240 



Corydalis, Frontispiece, 241, 

 242, 244; cornuta, 243-245 



Cottidce (sculpins), 345-346 



Cottus, 345-346; bairdii, 345- 

 346; cognatus, 346 



Coves, collecting in, 33 



Cows, and horseflies, 299 



Craneflies, Frontispiece, 282, 

 283-289; adults, 284; asso- 

 ciates, 286-287 ; bobbing by, 

 284; collecting, 34, 35; 

 food, 286; giant, 289; hi- 

 bernation, 286; identifica- 

 tion, 287; larvae, 284-285; 

 phantom, 282, 287-288; 

 pupae, 286, typical, 288-289 



434 



