INDEX 



1087 



!\plop^5urf 43; filum, 443 



A.pocra(ocj Cr^' S43 



Apodina,J 30 



Apparatu\^ and Methods, 61 ; references, 88, 8<.) 



Apsilidae, v 1 1 



Apsilus, 61 r^" bucinedax, 611 



Aptogonum, 137; bailcyi, 137 



Apus, 671; aeq/alis, 663, 671, longicaudalus, 



672, lucasanus, 672, ncivbcrryi, 671 

 Aquatic animals, birds, earthworms, etc.; 

 5ee Animals, BiiHs, Earthworms, etc., 

 aquatic 

 Arachnida, 17 

 Arcella, 221; dentata, 222, dlscoidcs, 222, 



vulgaris, 222 

 Arcellidae, 220 

 Archer inia boltoni, 144 

 Archigetes, 430 



Archilestes (imago), 923, (nymph), 928 

 Arcidens, 1003; conjragosa, 1003 

 Argia (imago), 923, (nymph), 928 

 Argulidae, 786-788; key, 787, 788; see Copc- 



poda; Siphonostomata 

 Argulus, 787; amcricanus, 787, appendiculo- 

 sus, 787, catostomi, 787, ingens, 788, lepldo- 

 stei, 788, maculosus, 787, stizostethi, 788, 

 versicolor, 787, 788 

 xArhythmorhynchus, 550; brevis, 550, pumili- 

 rostris, 551, irichocephalus, 550, uncinalus, 

 5 50 

 Arkansia, 1004; wheeleri, 1004 

 Armiger, 984 

 Arrhenurinae, 863 

 Arrhenurus, 863; albator, S6s,forpicatus, 863, 



globator, 863, macidator, 863 

 Arlemia salina, 668 

 Arthrodesmus, 141; convergens, 141 

 Arthropoda, 17 

 Arthrospira, 108; jenneri, 108 

 Ascaridae, 531 



Ascaris, 531; ardeae, 532, cylindrica, 531, 

 entomelas, 531, hclicina, 532, lanceolata, 531, 

 longa, 531, lumbricoides, 512, microcephala, 

 532, mucronata, 532, nigrovenosa, 531, 

 /^ewj/a, 531, serpentulus, 532, sulcata, 531. 

 tenuicollis, 531 

 Ascaroidea, 531 

 Ascoglena, 252 



Ascomorpha, 607; ecaudis, 607 

 Asellidae, 841 



Asellus, 841; communis, 841 

 Aspidisca, 291; costata, 291 

 Aspidobranchia, 994 

 Aspidocotylea, 379 

 Aspidogaster, 380; conchicola, 380 

 Aspidogastridae, 379 

 Asplanchna, 607; herrickii, 582, 607, priodouUi, 



607 

 Asplanchnidae, 571, 607 

 Asplanchnina, 607 



.Asphmchnopus, 607; myrnuUo, »>o7 



Assimeiiia, yS6; californica, 986 



.\ssimcniidae, yH6 



Association, cocfliticnt of, 54 



Assulina, 230; minor, 230, 5fmiMWMm, 230 



.\stacus, 846 



Astasia, 254; tricliophora, 254 



.\stasidae, 253 



.Vstcrionclla, 133; Kracillima, 133 



Asteromeycnia, 311; plumosa, 312, r<kfi^- 



spiiulala, 31 2 

 .\symphyl()dora, larva of, 423 

 Atractidcs, 874; spinipes, 874 

 .\tractonema, 254: lorluosa, 254 

 Atrochus, 611; tcntaculalus, 611 

 Alurinae, 864 



\lurus, 866; mirabilis, 866, scaber, 866 

 Alyidae, 845 



.\ul.)phorus, 639; furcalus, 639, ruj^wj, 639 

 Auricula, 978; pelluccns, 978 

 Auriculidae, 977 

 Auriculinae, 977 



Auridistomum, 397; clielydrae, 397 

 Auxospores, 125 



Awerinzewia, 227; cycloslomala, 227 

 Axonopsis, 866; complanata, 866 

 Azygia, 392; /mcm, 392, sebago, 371, trreticolU, 



392 

 Azygiidae, 392 



Bacillariaceae (diatoms), 125-134; key, 125- 

 134; 5ee Algae, Fresh-Water, excl. of BIuc- 

 Green 



Bacteria, 13, 90-99; aerobes, obligatory, 93, 

 anaerobes, facultative and obligatory, 93, 

 94, bacillus coli as index of contamination, 

 1069, classification, 90, forms, 91, metachro- 

 matic granules, 92, microorganism, 94, 

 movement, 92, number, 94, in natural 

 waters, 96, 1070, references, 99, spores, 92, 

 structure, 91 



Baetis (imago), 921, (nymph), 922 



Baetisca (imago), 919. (nymph), 921 



Baileya, 176 



Balla'dina, 28S 



Bangia, 177; atro- purpurea, 177 



Bartonius, 849 



Basiacschna (imago). 925. (nymph). 930 



Bastiana, 497; cxilis, 497 



Bathymermis. 505 



Batrachia (Amphibia). iojS. 1029: refer- 

 ences. 1066; stf W-rtebrala, a<iuatic 



Batrachospcrmum, 176: grabussonirmf, 176 



Bdellodrilus. 644; iUuminatus. 644. ihj/u- 

 bitis, 644. philadclphicus, 644, puhhcrrimus, 

 644 



Bdelloida. 576, 619 



Beetles, acjuatic; sec Colcoptcra; Insccta 



Belostoma. 934 



Beloslomatidae, 933 



