158 



INDEX 



Anodon feminalis (130) 



rostratus (128) 



rugosus (127) 



triangularis (128) 

 Anodonta I2j 



angulata (130) 



argentea (131) 



arkansasensis (127) 



beringiana 10, 127 



biangulata (130) 



buchanensis ("131) 



ccllensis (127) 



cognata (128) 



dallasiana (130) 



denigrata (131) 



edentula ( 127) 



feminalis (130) 



ferruginea (131) 



ferussaciana (130) 



flava (129) 



footiana (129), 129 



fragilis (129) 



gigantea (129) 



glandulosa (129) 



grandis I2g 



housatonica (129) 



implicata i2g 



irisans (129) 



kennerleji 128 



kennicotti 130 



lacustris (129) 



laosensis (128) 



lewisii (129) 



marginata 128 



marryattiana (129) 



modesta (131) 



newtonensis (129) 



nuttalliana 128 



oblita (131) 



oregonensis 128 



ovata (129) 



pallida (129) 



pavonia (127) 



pepiniana 130 



plicata (131) 



randalli (130) 



rotundata (128) 



rotundovata (128) 



salmonea (127), (129) 



Anodonta shaefferiana (127) 



showalteri {127) 



Simpson iana (130) 



subcarinata (129) 



subcylindracea (131) 



tetragona (127) 



triangularis (128) 



undulata (127) 



■wahlamatensis 128 



wardiana (127) 



youconensis (127) 



youkanensis (127) 

 Anodontoides 130 



ferussacianus 130 

 Ansulus (108) 

 Ansylus (108) 

 Aplecta (104), 106 

 Aplexa 100, 102, 104, 105, 107 



hordacea 103 



hypnorum 12, 104, 105, lO^t I07 

 Aplexus (104) 



hypnorum 107 

 Arctonchis 112 



borealis 112 

 Arianta arbustorum 21 

 Ariolimax 34, 35, 47 



columbianus 4J., 48 



maculatus 48 



steindachneri 48 



stramineus 48 

 Arion andersoni (46) 



foHolatus (47) 

 Arion id ae 46 



Arionta ptychophora (25) 

 Armiger 5j, 86 



crista 96 

 Arnouldia (40) 



fulva (41) 

 Aulaca (21) 

 Auricella (115) 

 Auricula (115) 

 Auricularia (60) 

 Auriculidse 115 

 Auriculina (115) 



Bathyomphalus 83^ 86 

 Biiidaria 27 



armifera 2J 



contracta 27 



