86 Trans. Acad. Sci. of St. Louis. 



Genus Pupa Drap.* 

 Subgenus Pupilla Leach. 



84. Pupa muscorum Linne. 



Stations 5, 10 and 17. Brighton (Walton). Specimens 

 from station 5 are very large and light colored ; those from 

 station 10 are small, dark chestnut-colored and are found 

 under chips near the base of the bank opposite Brewer's 

 landing. Apparently very common. 



Subgenus Leucocheila Alb. and Mart. 

 *85. Pupa fall ax Say. 



Subgenus Columella Mart. 



*f86. Pupa edentula. 

 P. simplex Gld. 

 Irondequoit (Walton); Cayuga (Banks). 



Subgenus Bifidaria Sterki. 

 *f87. Pupa corticaria Say. Pittsford (Walton). 



Section Albinula Sterki. 

 *f88. Pupa armifera Say. 



*f89. Pupa contra cta Say. 



Station 11. Common. The specimens are smaller than 

 the typical and approach P. holzingeri Sterki. The parietal 

 tooth is somewhat smaller and does not enter as far into the 

 aperture as in the typical form. I have not found this variety 

 common. 



Section Bifidaria s. str. 



*f90. Pupa rupicola Say. 



Section Vertigopsis Ckll. Mss. 



91. Pupa pentodon Say. 



Station 14. Rochester (Walton); Cayuga (Banks). 

 Common. 



* See Sterki, The Nautilus 6 1 : 2-8. 1892. 



