NORTH AMERICAN CONCHOLOGY. 

 [Pfeiffer, Monograpliia Helic. Vivent.] 



P. mumia Pot. et Mich. 

 maritima y Pfr. 

 detrita Shuttl, 

 662 Pupa simples Gould. 

 Vertigo simplex St. 



665 muscorum Linn. 



P. hadia Ad., &c. 



666 Hoppii Moll. 



667 corticaria Say. 



680 minuta Say. 



681 decora Gould. 

 681 contracta Say. 

 681 variolosa Gould. 

 683 *deltostoina Charp. 



Tennessee. 

 683 armifera Say. 



683 rupioola Say. 



P. procera Gould. 



684 Gouldii Binn. 



Vertigo Gouldii Gould. 

 684 pentodon Say (^Ver- 



P. curvidensGld. itigo). 

 Tappaniana Ad. 

 684 carinata Goidd. 



684 pellucida Pfr. 



P. servilis Gould. 



685 ovata Say. 



P. ovulum Pfr. 



modesta Say. 

 Vertigo ovata Gould. 

 modesta Binn. 

 685 milium Gould. 



Vertigo milium Gould. 

 689 Macroceramus KieneriP/". 

 Jiidimus Kieneri Pfr. 

 Pupa pontijica Binn. 

 Cylindrella pontijica 



Gould. 

 689 Gossei Pfr. (Dul.) [Ad. 



Cylindrella Ilydeana 



concilia Mor. 

 691 Cylindrella Liebmanni Pf. 

 694 *Ghie8breghti Pfr. 



CLiapa. 



121 



695 



Cylindrella decollata Nyst. 



695 



*Boucardi SalU. 





Cordova, Vera Cruz. 



695 



*turris Pfr. Chiapa. 



696 



*clava Pfr. Chiapa. 



698 



*attenuata Pfr. Chiapa. 



702 



variegata Pfr. 





Pupa lactaria Gould. 





C. lactaria Binn. 



702 



jejuna Gould. 



703 



*apiostonia Pfr. 





Cordova, Vera Cruz. 



704 



filioosta Skuttl. 



704 



*polygyra Pfr. 





Cordova, Vera Cruz. 



710 



teres Mke. 



710 



Pfeififeri Mice. 



710 



Pilocerei Pfr. 



710 



Roemeri Pfr. 



710 



Goldfussi Mke. 



710 



* Qonio stoma Pfr. Mex. 



798 



Vitrina Angelicee Beck. 



798 



limpida Gould. 





V. Americana Pfr. 





pellucida Binn. 



798 



Mexicana Beck. 



801 



*Simpulopsis Salleana Pfr. 





Cordova, Vera Cruz. 



801 



*Cordovana Pfr. 





Cordova, Vera Cruz. 



802 



*Chiapensi8 Pf. Chiapa. 



807 



Succinea effusa Shuttl. 



814 



Nuttalliana Lea. 



814 



Oregonensis Lea. 



814 



rustic ana Gould. 



814 



campestria Say. 



814 



ovalis Gould. 



814 



obliqua Say. 





S. ovalis Say. 





cnmpestris Gould. 





Totteiiiana Lea. 



815 



retusa Lea. 



815 



avara Say. 





S. vermeta Say. 



