Polygyra hippocrepis, Pfr. 



fastigans, L. W. Say. 



Jacksoni, Bland, 



Troostiana, Lee. 



Hazardi, Bland. 



oppilata, Moricand. 



Dorfeuilliana, Lea. 



Ariadnae, Pfr. 



septemvolva, Say, 



cereolus, Muhlf. 



Carpenteriana, Bland. 



Febigeri, Bland. 



pustula, Fer. 



pustuloides, Bland. 



leporina, Gld. [Coop. 



Polygyrella polygyrella, Bland and J. G. 

 Stenotrema spinosum, Lea. 



labrosum, Bland. 



Edgarianum, Lea. 



Edvardsi, Bland. 



barbigerum, Redfield. 



stenotreraum, Fer. 



hirsutiim, Say. 



maxillatum, Gld. 



monodon, Rack. 



germanum, Gld. 

 Triodopsis palliata, Say. 



obstricta, Say. 



appressa, Say. 



inflecta, Say. 



Rugeli, Shuttl. 



tridentata, Say. 



Harfordiana, J. G. Coop. 



fallax, Say. 



introferens, Bland. 



Hopetonensis, Shuttl. 



Van Nostrandi, Bland. 



vultuosa, Gld. 



syn. Henrietta:^ Mazyck. 



loricata, Gld. 

 Mesodon major, Binn. 



albolabris, Say. - 



divesta, Gld. 



multilineata, Say. 



Pennsylvanica, Green, 



Mitchelliana, Lea. 



elevata, Say. 



Clarki, Lea. 



Mesodon Christyi, Bland. 



exoletav Rinn. 



Wheatleyi, Bland. 



dent if eta, Binn. 



Roenieri,.Pfr. 



Wetherbyi, Bland. 



lhyroid^s,".Say. 



syn. hur^vJcutas Gld. ■ 



clausa, Say. 



Cohjia'ivbiar^a, Lea.. 



Downieai^a, Bland. 



Lawi, Lewis. 



jejuna, Say. 



Mobiliana, Lea. 



devia, Gld. 



syn. Midlatii, Bland and J. 



profunda, Say. [G. Coop. 



Sayii, Binn. 



syn. Chilhoweejisis, Lewis. 

 Acanthinula harpa. Say. 

 Vallonia pulchella, Mull. 

 Fruticicola hispida,: L. 



.rufescens, Penn. 

 Dorcasia Berlandieriana, Moric. 



griseola, Pfr. 

 Turricula terrestris, Chemh. 

 Aglaia fidelis, Gray. 



infumata, Gld. 



Hillebrandi, Newc. 

 Arionta arrosa.Gld. 



Townsendiana, Lea. 

 ^■^yn. ptychophora, A. D. 



tudiculata-, Binn. [Brown. 



Nickliniana, Lea. 



Ayresiana, Newc. 



redimita, W. G. Binn. 



intercisa, W. G. Binn. 



Kelletti, Fbs. 



Stearnsiana, Gabb. 



exarata, Pfr. 



ramentosa. Gld. 

 syn. reticulata^ Pfr. 



Californiensis, Lea. 



Cjarpenrteri, -Newc. 



Mormonum, Pfr. 



sequoicola, J. G. Coop. 



■Di'abloensis, j. G. Coop. 



Traski, Newc. 



