io88 



INDEX 



f 



Benacus, 894, 934; eggs, 896 



Berosus, 939 



Bicosoeca, 245; lepteca, 245 



Bidens beckii, 182 



Bidessus (adult), 940 



Bikoecidae, 245 



Binuclearia, 163; tetrana, 163 



Biology, Fresh- Water, 9; climate vs., 9, dis- 

 persal, 13, diversity, 12, fauna relicta, 10, in- 

 vestigators, II, journals on, 20, man the 

 modifying agent, 11, origin, 10, references 

 (general), 18-20, seasonal succession, 10, 

 stations, 12, stratification of organisms, 10, 

 types, 13, uniformity, 13, variety, 11; see 

 References for specific references 



Biomyxa, 232; vagans, 232 



Bipalidae, 360 



Birds, aquatic, 1024-1026; references, 1066; 

 see Vertebrata 



Bithynis, 845 



Black-flies, aquatic; see Insecta; Simuliidae 



Bladder-worms, 427 



Blasturus (imago). 920, (nymph), 921 



Blauneria, 979; heterodita, 979 



Blepharisma, 283; lateritia, 283 



Blepharoceridae, 943 



Blue-Green Algae; see .\lgae, Blue-Green 



Boleosoma nigrum, 1057 



Bolting cloth, specimens in, 7; see Plankton 



Bopyridae, 842 



Bosmina, 706; longirostris , 706, longispina, 

 707, obtiisirostris, 707 



Bosminidae, 706 



Bosminopsis, 707; deitersi, 707 



Bothria, 425 



Bothriocephalus, 431; latus, 432, 433 



Bothriomonus, 433; sturionis, 433 



Bothromesostoma, 351; personatum, 351 



Bothrostoma, 281 



Botrydiopsis, 156; eriensis, 156 



Botrydium, 172; granulatum, 172 



Botryococcus, 149; hraunii, 149 



Bottle, water-, 80 



Bottom materials, 24; collecting, 70, differen- 

 tiation, 25, distribution of life, 35, muck, 26, 

 terriginous, 26, 45 



Boyeria (imago), 925, (nymph), 930 



Brachionidae, 605 



Brachionus, 605; angular is, 605, bakeri, 579, 

 mollis, 605, pala, 605, punctatus, 605, quad- 

 ratus, 605 



Brachycera (larva), 946 



Brachycoeliinae, 400 



Brachycoelium hospitale, 400 



Branchinecta, 667; coloradensis, 667, lin- 

 dahli, 668, packardi, 667, paludosa, 662, 667 



Branchinectidae, 667 



Branchinella, 670; gissleri, 668, 670 



Branchiobdella, 644; americana, 644, tetro- 

 donta, 644 



Branchionidae, 570 i 



Branch! ura, 786-788; see Argulidae; jpepoda 



Brasenia, 193; peltata, 188 o 



Brebissonia, 128 



Brychius, 938 



Bryozoa (moss animalcules), 17, 947-956; 

 appearance, 947, habitat, 951, key, 951-955, 

 methods of study, 950, occurrence, 949, 

 polyzoa, 947, references, 955, 956, stato- 

 blast, 950 



BucephaUdae, 379 



Bucephalus, 379; polymorphus, 412, pusillus, 



379 

 Buenoa, 934 



Bugs, aquaac (water) ; see Hemiptera 

 Bulbochaete, 167; mirabilis, 167 

 Bulimnaea, 980 

 Bullella, 1007 



BuUinula, 225; indica, 225 

 Bumilleria, 164; sicula, 164 

 Bunodera, 388, 396, 398; luciopercae, 396 

 Bunoderuiae, 396 

 Bunops, 712; serricaudata, 712 

 Bursa, 476, 514 

 Bursaria, 285; truncatella, 285 

 Bythinia, 989; tentaculata, 989 

 Bythininae, 989 



"Cabbage-snake," 534 



Cabomba, 182 



Caecidotea, 842 



Caecincola, 391, 4CX3; parvulus, 400 



Caenis (imago), 920, (nymph), 922 



Caenomorpha, 285; medusula, 285 



Caddisflies (Trichoptera) ; see Insecta; Tri- 

 choptera 



Calamoceratidae, 936 



Calceolus, 277; cypripediiim, 277 



Caligidae, 783; see Copepoda 



Callibaetis (imago), 921, (nymph), 922 



Callidina, 619; angusticollis , 619 



CalocyUndrus, 138 



Calopteryx (imago), 922, (nymph), 891, 928 



Calothrix, 113; thermalis, 113 



Calyptomera, 689 



Calyptorhynchia, 352, 361 



Calyptotricha, 282; inhaesa, 282 



Camallanidae, 528 



Camallanus, 528; ancylodirus, 5x2, 529, 

 lacustris, 517. S18, oxycephalus, 529, trispi- 

 nosus, 529 



Cambarellus, 848; shiifeldti, 848 



Cambarincola macrodonia, 644 



Cambarus, 847; affi,7iis, 848, bartoni, 847, 849, 

 blandingi, 848, diogenes, 850, extrdneus, 849, 

 gracilis, 847, hamidaius, 849, immunis, 849, 

 limosus, 848, pellucidus, 848, propinquus, 

 849, rusiicus, 849, simulans, 847, virilis, 849 



Campascus, 229; cornutus, 229 



Campeloma, 988; subsolida, 988 



