248 INDEX 



Stagnicola bulimoides 79 



caperata 79 



catascopium 77 



communis (76) 



emarginata 68 



palustris 76 



perpolita 78 



reflexa 77 



Stenotrema germanum (25) 

 Strepomatidae lib 

 Striatura milium (43) 

 Strobila labyrinthica af 

 Strophitus 12? 



edentulus (127) 



rugosus i2j 

 Succinea (55), j/, 71, 105 



alaskana 58 



annexa (59) 



aurelia (59) 



avara 55, 56, 57 



campestris (58) 



chrysis 10, jp 



decampi (56) 



dunkeri 55 



elegans 55 



greeri (58) 



gronlandicaj? 



grosvenori 57 



hawkinsij7 



haydeni (56) 



lineata (59) 



minor (56) 



nuttalliana j5 



obliqua 38 



oblonga 55 



oregonensis 36 



ovalis 55, (56), (58), 59 



pfeifferi 55 



putris 55 



retusa (56), 57, 58 



rusticana jtf 



sillimani 57 



totteniana 55 



vermeta (57) 



verrilli 57 



wardiana (57) 

 Succineidae 55 

 Succinia (55) 

 Symphynota 131 



Symphynota complanata /j/ 



costata /j/ 



katherinse 131 

 Syncoryne 183 



eximia 177, 184, 210 



Tanousia (61), 62, 65 



Tapada (55) 



Taphius (81), 85 



Teba (39) 



Tellina henslowana (145) 



virginica (141) 

 Thuiaria 202 



argentea 177, 202-203 

 coei 177, 203, 234 

 costata 177, 205, 234 

 cupressoides 177, 203 

 elegans 177, 205, 232 

 fabricii 177, 203-204, 230 

 gigantea 177, 204 

 similis 177, 203 

 thuiarioides 177, 204 

 turgida 177, 204, 232 

 variabilis 177, 203 

 Torquis 83, 86 

 arcticus 96 

 nathorsti 96 

 parvus 95 

 umbilicatellus 96 

 vermicularis 95 

 Trimusculus (in) 

 Trochilus mortoni 40 

 Trochlea (83) 

 Trochovitrina (36) 

 Trochula 40 

 Trochulus (40) 



trochiformis (41) 

 Trochus (39) 



terrestris (40) 

 Trophidiscus (82) 

 Tropidina (120), 121 

 Tropidiscus (81), 82, 85 

 Tropidocyclas henslowana 145 

 Truella (55) 



elongata 55 

 Tubular ia 186 

 borealis 187 

 elegans 187 

 harrimani 177, 186, 214 



