16 



Remarks mi Classifications of 





Pfeiffer, 1855. 



Albf-rs, 1860. 





Malak. Blatt. 



Die Heliceen. 





Gen. Helix. 



Gen. Hyalina. 





Subgenera, 



Subgenera. 



Jasmodon Phill. 



■=. 



Gastrodonta. 



interna Say 



Actinaria 



(( 



multidentata Binn. 



(( 



<< 



lineata Sav 



i( 



(( 



tpolys^yrella Bid. k Coop. 



= 



= 



labyrinthica Say 



Mesodon 



(( 



llubbardi Brown 



=z 



= 



fVancouverensis Lea 



Macrocyclis 



Macrocyclis (Gen.j 



var. sportella Gould. 



■=. 



Patula (Helix) 



concava Say 



t( 



Macrocyclis (Gen.) 



% 





Genus Helix 

 Subgenera 



minnscula Binn. 



Hyalina 



Microphysa 



milium Morse 



•=. 



:=. 



minutissima Lea 



— 



— 



vortex Pfr. 



(4 



a 



incrustata Poey 



Patula 



u 



asteriscus Morse 



_. 







exigua Stimp. 



z=z 



Patula 



perspectiva Say 



u 



(( 



fstriatella Antlion. 



u 



11 



alternata Say 



(( 



it 



Cumberlandiana Lea 



(( 



n 



" var. mordax Shutt. 



u 



« 



f strigosa Gould 



= 



(( 



jCooperi W. G. Binn. 



= 



= 



fsolitaria Say 



a 



u 



cereolus Mulbf. 



Polygyra 



Polygyra 



Carpenteriana Bid. 



= 



z= 



septemvolva Say 



u 



u 



" var. volvoxis Parr. 

 * 



u 



u 



Texasiana Moric. 



Daedalocheila 



11 



triodontoides Bid. 



— 



— 



Ilindsi Pfr. 



Ulostoraa 



u 



ventrosula Pfr. 



Daedalocheila 



u 



oppilata Mor. 



■:^ 



(( 



auriformis Bid. 



= 



= 



