INDEX 



1093 



Desmonema, 112; wrangelii, 112 



Desmopachria (adult), 941 



Desmothoraca, 236 



Detracia, 979 



Dexiotricha, 280; plagia, 280 



Diamesa (larva), 945 



Diaphanosoma, 690; hrachyurum, 691, 

 leuchtcnbergianum, 691 



Diaptomus, 756; alberqiicrquensis, 771, asli- 

 landi, 765, asymmetricHS, 769, bakrri, 770, 

 birgei, 758, clavipes, 760, coloradensis, 759, 

 conipedatus, 767, dorsalis, 769, ciseni, 765, 

 Jranciscanus, 766, judayi, 762, Icplopiis, 

 760, lintoni, 761, minutus, 764, mississip- 

 piensis, 757, novamexicanus, 771, nudiis, 

 772, oregonensis, 757, pallidus, 758, />z/r- 

 Pureus, 772, reighardi, 757, saltillintis, 768, 

 sanguineus, 767, shoshone, 763, sicilis, 763, 

 siciloides, 773, signicauda, 773, spalulo- 

 crenatus, 766, stagnalis, 768, tcnuicaicdatus, 

 762, trybomi, 761, tyrelli, 759, wardi, 764, 

 washingtonensis, 770 



Diaschiza, 593; hoodii, 593 



Diatoma, 131; elongatum, 131 



Diatomaceae, 131 



Diatoms (Bacillariaceae) ; 5e(? Algae, Fresh- 

 Water, excl. of Blue-Green; Bacillaria- 

 ceae 



[Dibothrium] cordiceps, 432 



Dichelestidae, 784; 5ce Copepoda 



Dichothrix, 113; interrupta, 113 



Dicrocoeliidae, 407 



Dicrocoelium, 407; dendriticum, 408 



Dictyocystis, 148 



Dictyosphaerium, 149; pulchellum, 149 



Dictyosphaeropsis, 150; pdatina, 150 



Didinium, 272; nasutiim, 272 



Didymops (imago), 925, (nymph), 930; //«/- 

 ?jerf, 926, transversa, 892 



Differentiator, 508, 509 



Difflugia 224; acuminata, 225, corona, 224, 

 constricta, 224, /efte^, 224, lobostoma, 224, 

 pyriformis, 225, urceolala, 224 



Digenea, 379 



Diglena, 589; forcipata, 589, rostrata, 589 



Digononta, 619 



Dilepididae, 444 



Dilepis, 444; transfuga, 444, unilateral is, 444 



Dileptus, 275; gii'a^, 275 



Dimorophococcus, 148; lunatus, 148 



Dina, 659; anoculata, 659, fervida, 660, wf- 

 crostoma, 659, />an'a, 659 



Dinamoeba, 219; mirabilis, 219 



Dineutes (adult), 937 



Dinobryon, 264; sertularia, 264 



Dinocharidae, 569, 597 



Dinocharis, 597; pocillum, 597 



Dinoflagellida, 269 



Dinomonas, 248; wrax, 248 



Dinops, 607 



Dioctophyme, 523; renale, 523 



Dioctophymidae, 523 



Dioicocestus, 448; paronai, 448 



Diorchis, 443; afuminata, 443, americana, 443 



Diphyllolxjlhriidae, 431 



Diphyllolxjthriinac, 432 



Diphyllolwthrium, 432; latum. 432 



Diplax, 593; videns, 593 



Diplobothrium, 378; armatum, 378 



Diplocardia, 643 



Diplochlamys, 220; fragilis, 220, timida, 221 



Diplodiscus, 387; tempcraltis, 3S7, 413 



I)ipl()discinacr3S7 



Diplodontinac, 86 1 



Diplodontus, 861; drspiciens, 861 



Diplogaster, 488; y?r/or, 488 



Diplogonoporus, 433; grandis, 433, 434 



Diplois, 593; daviesiae, 593 



Diplophallus, 448; polymorphus, 448 



Diplophrys, 233: archeri, 2,\}, 



Diploposthc, 446; larvis, 447 



Diplostomulum, 411, 424; cuticola, 411, ro/- 



w»5, 411 

 Dip nets, 67 



Diplera (two-winged flies), aquatic, 909-916, 

 9i7i 943~946; black-flies (Simuliidae), 

 913, key, 917, 943-946, larvae, 917, midges 

 (Chironomidac), 914, wing venation, 910, 

 916; 5cr Chironomidae, Insecta, Simuliidae 

 Dipylidiidae, 440 

 Discodrilidae, 644 



Disease germs, water as conveyor of, 1068, 

 transmission of, 1068 



Dispersal of fresh-water life (biology), 13 



Dispharagus, 526, ardeae, 527 



Distemma, 589; seligcrum, 589 



Distigma, 254; proteus, 254 



Disloma dendriticum, 408. hflieis, 423, lancr- 

 olatum, 40S, oricola, 408. polyorchis, 397, 

 vagans, 423, var labile, 406; see Dislomum 



Distomata, 388 



Distome cercariae, 414 



Dislomum aspersum, 391, centra ppcndictdalum, 

 411, flexum, 391, auriculatum, 396, dupli- 

 catum, 421, nodulosum, 396; see Disloma 



Distribution of life, 35 



Distyla, 593; inermis, 593. ohioensis, 593 



Diurella, 595; stdcata, 595, /icrrt, 562, 595 



Diversity of fresh-water life (biology), 12 



Dixidae (larvae), 944 



Dobson flies (Sialididac) ; j^-r Insecta, Ncuro- 

 tera, Sialididae 



Docidium, 139; hactdum, 139 



Dolichodorus, 484; heterocephaliis, 484 



Donacia (larva), 943 



Dormancy, 43 



Dorocordulia (imago), 926, (nymph), 931 



Dor>laimus, 485; fecundus. 485, labyrin- 

 thostomus, 485 



Dosilia, 311; palmfri, 311, pluttwsa, 311 



