82 Trans. Acad. Sci. of St. Louis. 



63. LiMAX CAMPESTRis Binnej. 



Stations 1, 2, 3, 5, 11, 13 and 17. Found commonly 

 everywhere. 



Family Philomycidae. 

 Genus Philomycus Rafinesque. 

 *t64. Philomycus carolinensis Bosc. 

 *65. Philomycus dorsalis Binney. 



Family Vitrinidae. 

 Genus Vitrina Drap. 

 *66. Vitrina limpid a Gould. 



Family Endodontidae. 



Genus Pyramidula Fitzinger, 

 Patula Held. 



67. Pyramidula alternata Say. 



Stations 1, 4, 5, 7, 10, 11, 13 and 17. Rochester (Wal- 

 ton) ; Cayuga (Banks). This is the most common land snail, 

 and shows the usual variation in height of spire, coloration 

 and coarseness of ribbing. 



68. Pyramidula perspectiva Say. 



Station 13. Pittsford (Walton); Cayuga (Banks). But 

 one specimen was found, which measured 10 mill, in diameter. 



69. Pyramidula striatella Anthony. 



Stations 1, 7, 11 and 13. Pittsford (Walton); Cayuga 

 (Banks). Common everywhere. 



Section Helicodiscus Morse. 



70. Pyramidula lineata Say. 



Stations. Rochester (Walton); Cayuga (Banks). Com- 

 mon. 



