4 Remarks on Classifications of 



lasmodon Phill. multidentata Gould 



lineata Say. is multidentata Binn. 



macilenta Shuttl. 

 is lasmodon Phill, 



Gen. Zonites Montfort. 



fiiliginosa Griff. 



Subgen. Conulus Fitzinger. 



egena Say. Gundlachi Pfr. 



fulva Drap. ligera Say. 



Syn. chersina Say. stenotrema Fei. 



Gen. Hiscus^ Fitzinger. 



alternatus Say. planorboides Raf. 



mordax Shuttl. is concava Soy. 



is var. of Cumber landiana Lea. solitarius Say. 

 perspectivus Say. striatellus Anthon. 



Yancouverensis Lea. 



Gen. Helicellaf Lamarck. 



arborea Say. nitida Mtill. 



caduca Pfr. Syn. hydropMla Ingalls ? 



cellaria Miill. placentula Shuttl. 



demissa Binn. is capsella Gould. 



fuliginosa Griff. pura Alder. 



inornata Say. Syn. electrina Gould. 



intertexta Binn. unidentata Say 



laevigata Raf. is indentata Say. 



ligera Say. vortex Pfr. 



minuscula Binn. . 



In the above lists incongruous for.r s both of shell and animal 

 are placed together, allied forms are separated, and in several 

 cases the names of species are repeated in different genera or 

 sub-genera, and even in different families. 



* Patula Held, is in the Synonymy of Discus. — GeJi. of Recent Moll. I. c. 116. 



f "Tentacles short; edge-teeth of tongue aculeate. Mantle thickened and 

 slightly reflected ; tail obliquely truncated. Shell depressed, vitreous, shining, 

 umbilicated ; whorls regularly increasing, the last not descending at the aper- 

 ture ; aperture rotundately lunar; peristome thin, straight." H. <fe A. Adams 

 have in the Synonymy of Helicella, Hyalina Fer.., not Schum. and Zonites Gray 

 not Montf.— Gen. of Recent Moll. I. c. 118. 



