INDEX 



A eel la, 103. 

 Achatinida-, 118. 

 Agnatha, 118. 

 Agnathomorpha, 118. 

 .\griolimax, 121. 

 Akteophila, 109. ■ 

 Alasmidonta, 7.">. 

 Albinula, 111. 

 Amiiicola, 92. 

 Amnicolidii', 92. 

 Anculosa, 9S. 

 Ancylidw, 101. 

 Ancylus, 101. 

 Angitrema, 95. 

 Angustula, 112. 

 Ani.'topleura, 88. 

 Aniidonta. 72. 

 AnodontoideM, 7.3. 

 Aple.xa, 101. 

 Areidens, 74. 

 Ariophantina', 1 20. 

 Armiger, 109. 

 Aulacijpoda, 118. 

 Auriculidas 109. 



B 



Basommatophora, 99. 

 Bifidaria, HI. 

 Bythiuia, 92. 

 Bvthiniin:r, 92. 



Calyeulina, 84. 

 Campeloma, 89. 

 Carunculina, (>7. 

 Carychium, 109, 

 Cincinnatia, 93. 

 Circinaria, 118. 

 Circinariidic, US. 

 Cochlicopa, 113. 



Cochlicopida', 113. 

 Corneocyclas, 85. 

 Crenodonta, 78. 

 Cyprogenia, 71. 

 Cvrenacea, 82. 



Diagenie, 71. 

 Digen:u, 70. 

 Droinns, 71. 

 Dysnomia, 63. 



Elasmognatha, 113. 

 Elliptio, 76. 

 Endodontid;e, 122. 

 Endodontinif, 122. 

 Eschatigen:r, 71. 

 Euconuluti, 119. 

 Eurynia, 65. 

 Euthyneura, 99. 



Ferrissia, 101. 



G 



(Jalba, 103. 

 (Tastrodonta, 121. 

 (iaatropoda, 88. 

 Glyphyalina, 119. 

 (ioniobasis, 97. 

 Gonyodiscus, 122. 

 Cimdlachia, 102. 

 (ivraulus, 108. 



H 



Helicida-, 114. 

 Heliciua, 88. 

 HelicinidiU, 88. 



134 



