236 



INDEX 



Anodon biangulata (130) 

 exilis (129) 

 feminalis (130) 

 rostratus (128) 

 rugosus (127) 

 triangularis (128) 



Anodonta I2f 



angulata (130) 

 argentea (131) 

 arkansasensis (127) 

 beringiana 10, I2J 

 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 130 

 lacustris (129) 

 ladsensis (128) 

 lewis ii (129) 

 marginata 128 

 marry attiana (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) 



Anodonta rotundovata (128) 



salmonea (127), (129) 



shaefferiana (127) 



showalteri (127) 



simpsoniana (130) 



subcarinata (129) 



subcylindracea (131) 



tetragon a (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, Io6 t 107 

 Aplexus (104) 



hypnorum 107 

 Arctonchis na 



borealis 112 

 Arianta arbustorum 21 

 Ariolimax 34, 35, 47 



columbianus 47, 48 



maculatus 48 



steindachneri 48 



stramineus 48 

 Arion andersoni (46) 



foliolatus (47) 

 Arionide 46 



Arionta ptychophora (25) 

 Armiger 83, 86 



crista 96 

 Arnouldia (40) 



fulva (41) 

 Aulaca (21) 

 Auricella (115) 

 Auricula (115) 

 Auricularia (60) 

 Auriculidae //j 

 Auriculina (115) 



Bathyomphalus 83, 86 

 Bifidaria 27 



