io86 



INDEX 



117, phycoerythrin, 117, phycophaein, 117, 

 pyrenoid, 116, references, 177, reproduc- 

 tion, physiology of, 120, zoosporangium, 

 119, zoospores, n8; see Algae; Algae, Blue- 

 Green; Bacillariaceae; Chlorophyceae; Pha- 

 eophyceae; Rhodophyceae 



AUassostoma, 387; magnum, 387, parvun, 387 



AUocreadiidae, 394 



AUocreadiinae, 394 



Allocreadium, 395; commune, 395, lohatum, 



395 



AUoeocoela, 354 



Alona, 722; affinis, 723, costata, 723, guttata, 

 721, 722, intermedia, 724, monacantha, 722, 

 quadrangularis, 723, rectangula, 723, tenui- 

 caudis, 720 



Alonella, 724, 734; dadayi, 736, dentijera, 735, 

 diaphana, 721, 735, exigua, 737, excisa, 737, 

 glohulosa, 735, karua, 724, 734, nana, 736, 

 rostraia, 736, sculpia, 735 



Alonopsis, 719; aureola, 719, elongata, 719 



Amabilia, 448; lamelHgera, 448 



Amabiliidae, 448 



Amhly plana cockerelli, 360 



Ambloplitls rupestris, 1030 



Ameletus (imago), 920, (nymph), 922 



Ammonia in natural waters, 39 



Amnicola, 989; cincinnatiensis, 989, Umosa^ 

 989 



AmnicoUdae, 989 



Amnicolinae, 989 



Amoeba, 219; guttula, 220, Umax, 220, ^ro- 

 /cMJ-, 219, radiosa, 220, striata, 220, verru- 

 cosa, 220 



Amoebea, 219 



Amoebidae, 219 



Amoeboid protozoa; jee Sarcodina 



Amoebotaenia, 445; cuneata, 445 



Amorgius, 934 



Amphiagrion (imago), 923, (nymph), 928 



Amphibia, ^ee Batrachia 



Amphibious plants, see Plants, amphibious 



Amphids, 466 



Amphigyra, 986; alabamensis, 986 



Amphileptus, 275; gutta, 275, meleagris, 294 



AmphiUna, 430 



Amphimonas, 250; globosa, 250 



Amphipoda, 829, 842; see Malacostraca 



Amphiprora, 130 



Amphiproraceae, 130 



Amphisia, 288 



Amphistoma grande, 386, suhlriquetrum, 386 



Amphistomata, 385 



Amphistome cercariae, 413 



Amphitrema, 232; fiavum, 232, wrightianum, 

 232 



Amphizoa (adult), 940, (larva), 943 



Amphizoidae, 940 



Amphora, 128; ovalis, 12S 



Ampullarla, 987; paludosa, 987 



AmpuUariidae, 987 



Amygdalonaias, 1014 



Anabaena, no; circinalis, i jo, fios-aquae, no 



Anaerobes, facultative and obligatory; see 

 Bacteria 



Anaerobic respiration, 38 



Anapodidae, 570, 601; ^ee Rotatoria 



Anapus, 601; ovalis, 601 



Anarthra, 591; aptera, 591 



Anax, 925, 930 



Anchistropus, 730; minor, 730 



Anculosa, 994, praerosa, 994 



Ancylidae, 985 



Ancylostoma duodenale, 513, 521 



Ancylus, 985; diaphanus, 985, nutlallii, 985, 

 rivularis, 985 



Ancylus s. s., 985 



Ancyracanthus cystidicola, 527 



Ancyrocephalus, 375 



Ancyronyx, 942 



Angiostoma, 521; nigrovenosum, 521 



Angiostomidae, 521 



Angitrema, 992 



Anguillulidae, 521 



Animal communities; see Communities, ani- 

 mal 



Animalcules, moss; see Bryozoa 

 wheel; see Rotatoria 



Animals, aquatic, food relations of, 53, 54 



Anisonema, 257; acinus, 257 



Anistoptera, 924, 929 



Ankistrodesmus, 155 



Annelida; see Hirudinea 



Anodonta, 1002; grandis, 1002 



Anodontinae, looi 



Anodontoides, 1003; ferussaciana, 1003 



Anomalagrion (imago), 924, (nymph), 929 



Anomopoda (adult), 694 



Anomotaenia, 446; constricta, 446 



Anonchus, 502; monhystera, 502 



Anopheles, 944 



Anoplocephalidae, 444 



Anortha gracilis, 334 



Anostraca, 666 



Antheridium, 119 



Antherozoid, 119 



Anthophysa, 248; vegetans, 24S 



Anuraea, 601; brevispina, 601, cochlearis, 6oi 



Anuraeidae, 571, 601 



Aorchis, 385; extensiis, 385 



Aphanizomenon, in; flos-aquae, in 



Aphanocapsa, 106; grevillei, 106 



Aphanochaete, 169 



Aphanolaimus, 498; spiriferus, 49S 



Aphanothece, 104; microscopica, 104 



Aphelenchus, 483; microlaimus, 485 



Aphrothoracida, 234 



Apiocystis, 147; brauniana, 147 



Aplanospore, 118 



Aplexa, 985; hypnorum, 985 



