NORTH AMERICAN CONCHOLOGT. 



105 



Page. Plate. Fig. Name. locality. 



56 Glandina truncata Say, e. 1. S. C. & Florida. 



Planorbis glmis Say. 



Auricuiiadae. 



92, 1 — 3 Auricula bidentata Say. 



Melampus bidentatus Say. 

 A. cornea Lam. 

 91, 93 denticulata 2Iontagu. 



Valuta denticulata Mont. 

 A. personata Lam. 

 borealis Conrad, 

 obliqua Say, e. 1. Charleston. 



L.imniadae. 



57 



58 

 / 



58 



59 



iv 



59 



a, b 



Planorbis trivolvis Say. 



60 



iv 



63 



a, b 



bicarinatus Say. 



60 



V 



80* 



a, b 



lentus Say. 



61 



iv 



60, 61 



megastoma De Kay. 



61 



V 



99* 



a, b 



campanulatus Say. 



62 



iv 



57 



a, b 



obliquus De Kay. 



62 



iv 



64 a, 



b,c 



armigerus Say. 



Discus armigerus Hald. 



63 



iv 



62 



a, b 



exacutus Say. 



63 



iv 





58 



parvus Say. 



64 



viii 



185* 



a,b 



corpulentus Say. 



64 









hirsutus Gould. 



65 









elevatus Adams. 



65 









deflectus Say. 



66 









dilatatus Gould. 

 P. lens Lea? 



66 









glabratus Say, e. 1. 



66 









antrorsus Conrad, e. 1. 



61^1 









virens Adams, e. 1, 



67 



V 





80 



Limnea catascopium Say. 

 L. pincjuis Say? 

 decollata Adams. 



68 



iv 





68 



fragilis Linn. 



Helix fragilis Linn. 

 Limnea elodes Say. 



68 



iv 





76 



umbrosa Say, 



Limneus elongatus Say. 



69 



iv 



66, 



69 



caperata Say. 





V 





79 



Lj. umbilicata Adams. 



69 



iv 





67 



pallida Adams. 



70 



iv 





70 



megaaoma Say. 



South Carolina. 



Alabama. 



Vermont. 



