632 
Chara, 38, 236, 251. 
Chironomus, 47, 516, 517, 536. 
Chlamydomonas, 178, 225, 546, 555. 
Chlorophycee, 519, 532. 
Chydorus, 256, 389. 
globosus, 297. 
Cicuta bulbifera, 238. 
maculata, 238. 
Ciliata, 296, 500, 518, 519, 531, 534, 546, 555. 
Cladocera, 256, 258, 369, 370, 375, 385, 389, 
519. 
Cladophora, 245. 
Closterium, 537. 
acerosum, 516. 
gracile, 516. 
lunula, 516. 
Cocconeis communis, 516. 
Codonella, 263 (table ), 534, 555. 
Colurus obtusus, 516. 
Composite, 245, 246, 240. 
Conjugate, 5109. 
Conochilus, 516. 
Copepoda, 185, 256, 257, 263 (table) ,385, 
500, 519, 536. 
Cordulegaster, 14, 16. 
Cordulegasteridz, 4, 5, 6, 9, 13, 14, 22, 26, 
27, 28. 
Corduliine, 5, 6, 14. 
Corisa, 17. 
Corixa, 580. 
Crenothrix, 582. 
Cruciferz, 244. 
Crustacea, 17, 47, 370, 457, 519. 
Cybister, 46. 
Cyclops, 263 (table ), 297, 536. 
bicuspidatus, 297, 518. 
serrulatus, 516, 536, 537. 
Cyclotella, 516. 
Cymatopleura solea, 516. 
Cyperacez 236, 
Cyphoderia ampulla, 516. 
Cyprinus carpio, 153. 
D 
Dero vaga, 297. 
Desmidiacez, 517, 532. 
INDEX 
Diastatomma, 14, 15, 52, 53, 55, 57-60, 65. 
carolus, 58, 59-60. 
rupinsulensis, 59. 
severus, 58-59. 
Diatoma vulgare, 516. 
Diatomacez, 152, 181, 182, 225, 227, 256, 
257, 263 (table), 389, 500, 513, 
516, 517, 518, 523, 530, 531, 532, 
535, 539, 555, 569, 614. 
Didymops, 5, 16. 
Difflugia, 263 (table ), 296, 297. 
acuminata, 516. 
acuminata bifida, 516. 
constricta, 516. 
globulosa, 516. 
Dinobryon, 225. 
Diplax, 5,9. 
Diptera, 6, II, 17, 537. 
Distyla, 516. 
Dixa, 536. 
Dorosoma, 563, 564. 
Dromogomphus, 16, 53, 54, 64, 65. 
spinosus, 64-65. 
Dulichium spathaceum, 240. 
E 
Eleocharis acicularis, 241. 
intermedia, 240. 
palustris, 240. 
tenuis, 240. 
Elodea, 236, 243, 244, 246, 247, 248, 368, 
379; 491, 495, 496, 499, 597. 
canadensis, 239. 
Encyonema, 516. 
Entomostraca, 17, 185, 263 (table), 297, 
461, 516, 519, 530, 536, 564, 615. 
Ephemerida, 3. 
Ephemeride, 20, 60. 
Epizeschna, 30, 32, 33, 35-36. 
debilis, 33. 
heros, 7) 34, 35-36, 39, 43. 
Epicordulia, 13, 15, 16, 17, 46. 
princeps, 7, 10. 
Epistylis, 296, 297, 534. 
Equisetum, 236. 
limosum, 241. 
Esox vermiculatus, 17. 
Etheostomide, 564. 
