INDEX 



159 



Bifidaria holzingeri 28 



pentodon 28 

 Bornia 141 

 Brachyspira (55) 

 Brondelia 109 



drouetiana 109 

 Buccinum palustre 62, (76) 



truncatulum 62, (72) 

 Buliminus obscurus 41 

 Bulimnea (60), 63 



megasoma 67, 70 

 Bulimulus pilula 79 

 Bulimus (104), 105, (115) 



harpa (21) 



hypnorum (106) 



lubricoides (33) 

 Bulinus (100), (loi), (104), 105, 107 



hordaceus (104) 



hypnorum 107 



per la 105 



pictus 107 



senegalensis 105 



turritus 105 

 Bulla ( 104) 



fontinalis 99, 100 



hypnorum 104, 105, (106) 



turrita (106) 

 Bullinus (icxj), (104) 



fontinalis 100 



turritus (106) 

 Bythinella obtusa Il8 

 Bythinia 105 



Caillaudia (81) 



angulata 81 

 Campeloma 124 



decisum 124, 125 

 Carinifex 63 

 Carychium 7/5, 116 



exiguum 115, 116 



exile 1/6 



minimum 115 

 Cepaea hortensis (20) 

 Chilostoma (22) 

 Chlamydea 36 

 Choanomphalus 62 

 Cincinna (120) 



Cincinnatia cincinnatiensis I18 

 Cionella lubrica (33) 



Circinaria (22), 33 

 cbocolata 34 



hemphilli 35 



by brida jj 



sportella 34, jj 



vancouverensis 25, 34, (35) 



voyana 35 

 Circinariidae 33 

 Cobresia (35), 121 

 Cochlicopa jj 



lubrica jj 

 Cochlohydra (55) 

 Complanaria gigas (131) 

 Concinna (120) 

 Conulus (39) 



alaskensis 41 



arcticus (45) 



chersinus (41) 



fulvus (40), (41) 



trochiformis (41) 

 Coretus (80), (81), 83 

 Corneocyclas 3, 134, 141 



abdita 142, 143, 145 



abyssorum 14J 



aequilateralis 141 



arctica 144 



borealis 144 



compressa 142 



glacialis 144 



henslowana 14^ 



idahoensis 141 



nivalis 144 



occidentalis 143 



pulchella 144 



randolphi 144 



rotundata 143 



scute 1 lata 141 



sibirica 144 



steenbuchii 143 



ultramontana 144 



variabilis 142 



ventricosa 143 



virgin ica 141 

 Cornu (81) 

 Costatella (100), loi 

 Costella (100) 

 Cumingia (108) 

 Cyclas appendiculata (145) 



aurea (135) 



