158 



INDEX 



Anodon feminalis (130) 

 rostratus (128) 

 rugosus (127) 

 triangularis (128) 



Anodonta 777 



angulata (130) 

 argentea (131) 

 arkansasensis (127) 

 beringiana 10, 7*7 

 biangulata (130) 

 buchanensis (131) 

 cellensis (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 129 

 housatonica (129) 

 implicata 129 

 irisans (129) 

 kennerleyi 128 

 kennicotti 7jo 

 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 7jo 

 plicata (131) 

 randalli (130) 

 rotundata (128) 

 rotundovata (128) 

 salmonea (127), (129) 



Anodonta shaetferiana (127) 



showalteri (127) 



simpsoniana (130) 



subcarinata (129) 



subcylindracea (131) 



tetragona (127) 



triangularis (128) 



undulata (127) 



wahlamatensis 128 



wardiana (127) 



youconensis (127) 



youkanensis (127) 

 Anodontoides 130 



ferussacianus fjo 

 Ansulus (108) 

 Ansylus (108) 

 Aplecta (104), 106 

 Aplexa 100, 102, 104, 105, 107 



hordacea 103 



hypnorum 12, 104, 105, fo6, 107 

 Aplexus (104) 



hypnorum 107 

 Arctonchis 112 



borealis 112 

 Arianta arbustorum 21 

 Ariolimax 34, 35, 47 



columbianus ^7, 48 



maculatus 48 



steindachneri 48 



stramineus 48 

 Arion andersoni (46) 



foliolatus (47) 

 Arion idse 46 



Arionta ptychophora (25) 

 Armiger 83, 86 



crista 96 

 Arnouldia (40) 



fulva (41) 

 Aulaca (21) 

 Auricella (115) 

 Auricula (115) 

 Auricularia (60) 

 Auriculidae 775 

 Auriculina (115) 



Bathyomphalus Sj, 86 

 Bifidaria 27 



armifera 2f 



contracta 27 



