1 68 



INDEX 



Pupilla badia (28), (29) 



blandi 28 



muscorum 28, (29) 

 Pyramidula 49 



alternata 4g 



asteriscus ji 



cronkhitei 50, 51 



limitaris 49 



randolphi (53) 



ruderata 50, 51 



solitaria 4Q 



striatellaj'O 



Quadrula 133 

 heros 133 

 hippopaea 133 

 lachrymosa 133 

 plicata 133 

 rubiginosa 134 

 undulata 133 



Radix (60), 62, 63, 64, 65, 67, 68, 71, 72 



binneyi 69 



columella 70 



mighelsi 68 



randolphi 71 

 Rivicola (99) 



Sandria 65 

 Saraphia (115) 



tridentata 115 

 Segmentaria (97) 

 Segmentina 97, 98 



armigera g8 



christyi 99 

 Selenites 33 



vancouverensis (34) 

 Semilimax (35), (36) 

 Siphonaria /// 



sipho III 



thersites /// 

 Siphonariidae /// 

 Sphaeriidae 134, 145 

 Sphaerium 134 



aureum 135 



cooperianum (139) 



corneum 135 



dentatum 136, 137 



emarginatum 138 



Sphaerium fabale 137 



fabalis (136) 



flavum 138 



jayanum 139 



lenticula 140 



medium 140 



nobile 137 



occidentale 136, 137 



partumeium 139 



patella 138 



primeanum 141 



raymondi 138 



rhomboideum 136, 141 



6imile 134 



solidulum 136 



spokani 138 



stagnicola 140 



stamineum 136 



striatinum 133 



sulcatum (134) 



tenue /jo, 140 



trans versum 139 



truncatum 140 



tumidum 138 



walkeri 135 

 Sphyradium 34 



edentulum 34 

 Spiralina (81) 

 Spirodiscus corneus (81) 

 Spirorbis (82) 

 Stagnicola (60), 62, 64, 68, 71, 72, 74 



adelinae 78 



anticostiana 79 



bulimoides 79 



caperata 79 



catascopium 77 



communis (76) 



emarginata 68 



palustris 76 



perpolita 78 



reflexa 77 

 Stenotrema germanum (25 ) 

 Strepomatidas 11b 

 Striatura milium (43) 

 Strobila labyrinthica 27 

 Strophitus 127 



edentulus (127) 



rugosus 127 

 Succinea (55)>55» 7I> l°5 



