GENERAL INDEX. 



337 



Page. 



Midges, Ceratopogoninae 3,42,43,44,45,47 



Chironomidae 2,3,8,26.46,47,48 



cbironomids 3.4-5- 18, 27,49. 50 



Chironominae 3,9.33.38.39.40-42,43.47 



Chironomus 23.24,39,41,42,45,46,47 



albistria 16 



annularis 21 



braseniae — 6,7.9, 23,24,26, 27, 28, 29, 30- 3 1.32, 34- 3 7- 51 



cayugae 6,18, 20, 21,22,32 



decorus 20 



digitatus 39 



dispar 16 



hyperboreus 21 



lobiferus 4,7,9, n, 12, 13,15, 16, 18, 22,41, 52 



niverpennis 16 



pedellus 16 



sparganii 9, 16 



tendens 16 



viridis 16 



Cricatopus 23 



sylvestris 24 



Culcx 42 



Culicoides 43.44-45-52 



guttipennis 44-45 



Diptera 2,48 



food of fishes 3 



Metriocnemus knabi 4-33.34-37 



Nematocerca 48 



Orphnephila 48,49, 50, 52 



americana 52 



testacea 48,52 



Orplinephilidx 2,48,50 



Orthocladius 33-35.5* 



Prodiamesa 36.37.52 



praecox 36 



Tanypinae 3.37.38.39-40-42- 47 



Tanypus 37.38,40,41 



carneus 38,40.41 



dyari 38,39.52 



hirtipennis 38 



maculatus 42 



monilis 38 



Tanytarsus exiguus 17, 18, 19 



obediens 16,47 



pusio 17, 18.19,21 



Trichocladius 33 



nitidellus 31.32,33.47 



minnow 263 



Modiola plicatula 128, 220 



Modiolaria nigra 128, 129 



Modiolus demissus 128, 220 



modiolus 1 28, 1 29 



rectus 129 



Molgula 220 



Mollusca , description and distribution 129 



economic importance 130 



mollusks 128, 131, 297 



monilis, Tanypus 38 



mother-of-pearl shell, successful culture 86 



mussels, fresh- water: 



Anodonta 78,129 



celensis 79 



Anodontidae 130 



aquaria, growth in 66. 68, 72, 85 



artificial propagation 84, 85, 131 



byssus 79. 80, 82, 83 



cement-lined ponds, growth in 66, 68, 74- 85 



commercial possibilities 86 



conservation 83 



Page. 



mussels, cultural method 84 



culture of, experiments in 63-90 



depletion of resources 131 



development of juveniles 78 



earth ponds, growth in 66, 6S, 77 



enemies of juveniles 81 



excurrent siphonal opening 81 



experiments in culture of 63-90 



extermination, possibility of 86 



floating crates 64. 65. 68, 72, 82, 85 



food of juveniles 81 



foot 79.80,81 



gills 79, 80 



glochidia 67, 68, 78, 79, 80 



growth in aquaria 66, 68, 72, 85 



cement lined ponds 66, 68, 74 



earth ponds 66, 68, 77 



floating crates 68, 72 



pens 77, 85 



tanks and troughs 66, 68, 72, 85 



growth of juveniles, observations on 66 



habitat, juveniles 80 



habits, juveniles 80 



heart 79 



hyaline thread 79 



intestines 79 



investigations necessary 87 



juveniles, development 78 



enemies 75, 81 



food 81 



growth, observations on 66 



mortality 81 



structure 78 



kidney 79 



Lampsilina? 78 



Lampsilis anodoutoides 65. 72. 73. 76 



ligamentina 65, 73. 74. 7°. 78 



luteola 65, 67, 73, 74, 76, 77, 79, 80, 82 



ventricosa 64 



liver 79 



mantle 79 



Margaritanas 78 



marsupia 80 



methods and plan of artificial culture 64 



mortality of juveniles 81 



muscles, adductor 79 



ovulation 80 



palatability 86 



parasitism 63, 83 



pearls from 13 1 



pens, growth in 77 



Plagiola donaciformis 80 



planting 86 



ponds, growth in 66, 68. 74, 77, 85 



problems concerning, unsolved 87 



propagation, artificial, advantages 84, 85, 131 



protection 84 



Quadrula 139 



heros 65. 79 



plicata 74 



pustulosa 65, 73, 74. 75. 76 



reproductive glands 80 



shell 79, 8o, 81, 85, 131 



stomach 79 



structure of juveniles 76 



tanks and trough, growth in 66, 68, 72, 85 



umbonal sculptures 79 



Unio 78, 1 29 



Unionidae 129 



