NORTH AMERICAN CONCHOLOGY. 



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[Pfeiffer, Monograpliia Helic. Vivent.] 

 Name. 

 Polygyra plicata Say. 

 fatigiafa Say. 

 Helix avara Sag {Polyggra). 

 H. Sayii Wood. 



auricnlaia Binn. 

 Stenotrema avara Raf. 

 Troostiana Lea {Polgggra). 

 clausa Raf. 

 H. infiecta Say. 

 TrUlopsis clausa Raf. 

 Gouostoma clausu7n Ileld. 

 convexa Raf. 

 H. monodon Rack. 

 hirsuia (a) Fer. 

 Slenotrema convexa Raf. 

 H. fraterna Say. 

 Leaii Ward. 

 Bpinosa Lea {Carocolla). 

 hirsuta Say. 



H. fraterna Wood. 

 sinuata (y) Gmel. 

 isognomostomos Gmel. 

 stenotrema Fer. 

 pustula Fer. 



Edgariana Lea (CarocoUa). 

 Oregonensia Lea. 

 tenuistriata Binn. 



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Doubtful Species. 



Locality. 



Louisiana, &c. 



Tennessee. 

 Missouri, &c. 



Ohio, Texas. 



Alabama. 



Texas. 

 Tennessee. 

 Oregon. 

 Tennessee. 



Heliz contortuplicata Beck (Polygyra). Mexico. 

 ezoleta Say. 



Fabricii Beck. = H. nitida Fabr. 

 hieroglyphica Beck. (Enryomphala). North America, 

 implicata {Dxdolochila) Beck. Mexico. 



Vol. ii, 1S48. 



57 Bulimus Dombeyanus {Helix) Fer. 



Lymnea ritgosa Val. 

 81 Gossei Pfr. (van S). 



84 punctatissimus (Clansilia) Less. 



Clansilia exfisa Pot. & Mich. 



Helix exexa (Cochlodina) Per. 



Auricula fuscagnla Lea. 



Pupa septemplicala Muhlf. 



8 



Mexico, &o. 



Texas. 



Brazil ! Mexico f 



