It6 



BIBLIOGRAPHY OF 



[part II. 



[Reeve, Conchologia Iconica.] 



Plate. 



Fig. 



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Name. 

 Helios planorboides Fer. 



Mesomphix planorboides Raf. 



H. concava Say. 

 fuliginosa Griff. 

 Pennsylvanica Green. 



H. clausa Say. 

 thyroides Say. 



Mesodon leucodon Raf. 

 palliata Say. 



H. denotata Fer. 

 notata Desh. 

 Carolinensis Lea. 

 Sayi Binn. 

 Roemeri Pfr. 

 elevata Say. 



H. Knoxvillina Fer. 

 profunda Say. 

 obstricta Say. 

 Baskervillei P/r. 

 spinosa Lea. 



Carocolla spinosa Lea. 

 fallax Say. 

 ventre sula Pfr. 

 appressa Say. 



H. linguifera Fer. 

 tridentata Say. 

 multilineata Say. 

 Columbiana Lea. 

 ligera Say. 



H. Wardiana Lea. 

 Rafinesquea Fer. 

 P ennsy 1 vanlca. 



H. clausa Say. 

 perspectiva Say. 



H. patula Desh. 

 convexa Raf. 



H. monodon Rack. 



var. Helix fraterna Say. 

 bicostata Pfr. 

 cereolus Mnhl. 



H. septemvolva Fer. 

 planorbula Lam. 

 polygyrata Binn. 

 florulifera Pfr. 



Locality. 

 Illinois and Missouri. 



Penn., Ohio, Illinois. 

 Pennsylvania, Ohio. 



North America. 



North America. 



North America. 



Texas. 



North America. 



North America. 

 Ohio. 



Vancouver's Island. 

 Alabama, Tennessee. 



Philada., Texas, Va. 

 Mexico, Texas. 

 Ohio, Missouri. 



Atlantic States. 

 Illinois, Missouri. 

 Ft. Vancouver, Cal. 

 Missouri, Kentucky. 



N. America, Lake Erie. 

 Ohio, North America. 



Tennessee. 

 Georgia, Florida. 



Florida. 



