NATURAL SCIENCES OF PHILADELPHIA. 155 



monodon, Rack, Milwaukee ! 

 multilineata, Say, do. ! 

 (perspectiva, Say, ? ) 

 profunda, Say, Milwaukee ! 

 striatella, Anthony, do. ! 

 Bulimus harpa, Say, N. W. Territory, Say. 

 marginatus, Say, Milwaukee ! 



ACHATINA LUBRICA, MU1. do. ! 



Pupa armifera, Say, (?) 



corticaria, Say, (?) Milwaukee ! 

 Vertigo ovata, Say, (?) do. ! 



Carychium exiguum, Say, (?) do. ! 

 Helicina occulta, Say, Sheboygan ! ! 



Amnicola limosa, Say, N. W. Territory, Say. 



lustrica, Say, Milwaukee ! 

 Melania depygis, Say, (?) do. ! 



elongata, Say ? (or elevata ?) Milwaukee ! 

 occulta, Anth., Wisconsin, Anthony. 

 Leptoxis isogona, Say, Rock River ! 

 Viviparus decisus, Say, Milwaukee ! 



subglobosus, Say, N. W. Territory, Say. 

 Valvata sincera, Say, Milwaukee ! 

 tricarinata, Say, do. ! 

 Limn^ea caperata, Say, (?) do. ! 



catascopium, Say, N. W. Territory, Say. 

 columella, Say, (?) Milwaukee ! 

 emarginata, Say, Madison, Wisconsin ! 

 fragilis, Say, Milwaukee ! 

 gracilis, Say, do. ! 

 jugularis, Say, do. ! 

 megasoma, Say, N. W. Territory, Say. 

 umbrosa, Say, do. do. 



Physa elongata, Say, Milwaukee 



heterostropha, Say, do. 

 Planorbis armigerus, Say, do. 

 bicarinatus, Say, do. 

 campanulatus, Say, Milwaukee. 

 corpulentus, Say, N. W. Territory, Say. 

 deflectus, Say, Milwaukee 



I860.] 



plicatus, Lesueur, Rock and Wisconsin Rivers ! 

 schoolcraftensis, Lea, Fox River, Lea. 

 cornutus, Bar., Fox River, Barnes. 

 postulosus, Lea, Rock and Wisconsin Rivers ! 

 verrucosus, Bar., Rock River ! 

 metanevrus, Raf., Wisconsin River 

 tuberculatus, Bar., do. 



elegans, Lea, do. 



Lea, (?) 



C 



