11(1 



Suborder STYLOMMATOPHORA. 



MONOTREMATA. 

 Vasopulmonata. 



ORTHURETHRA. 



Family VALI.ONIID.'E. 

 Genus Vallonia Kisso. 



Vallonid pdh'licllii Miiller ( = Hdi,r ininuta (Say). 



(V)olv (V). ( Baker, Higley, Jensen ) ; Joliet, Will Co. (Ferriss, 

 Handvverk): Mercer ('o. (Marsh) ; Elgin, Kane Co. ; Algonc[uin, 

 McHenry Co. (Nason); Fulton Co. (Wolf). 



V(dl<iiii(( rontata Miiller. 



La Salle Co. (Calkins) ; Hock Island Co. (Marsh); Algonquin, 

 McHenry ( 'o. ( Nason ). 

 V<illoiii(( parculd Sterki. 



Joliet, Will ('O. (Ferriss, Plandwerk); Algoncjuin, McHenry 

 Co. (Nason); Will Co. (Sterki). 



Family PUPID.-E. 

 Genus Stkobilops Pilsbry. 

 Strohilops Idhiirhilli'icd Say. 



Cook Co. (Baker, .lensen); Northern Hlinois (Calkins) ; La 

 Salle <;io. (Calkins, Huett) ; Utica and Sheridan, La Salle Co. 

 (Ferriss); Winnebago and Washington counties (Hinkley); 

 Mercer Co. (i\Iarsh) ; Elgin, Kane Co.; Algonquin, McHenry 

 Co.; Athens, Menard Co. (Nason); Southern Hlinois (Ulflers); 

 Fulton Co. (Wolf). 

 !^f)'()liil(ips afiiiiis Pils])ry. 



Oregon, Ogle Co. ; Evauston, Cook Co. (Baker); Algonquin, 

 McHenry Co. (Nason). 

 iStrohilopii virgo Pilsbry. 



Elgin, Kane Co.; Algonquin, McHenry Co. (Nason). 



Genus Pdpoides Pfeiffer. 

 J^iipdidi's niarifinaUi Say {= fallax Say of American authors, not 

 of Say). 



Oregon, Ogle Co. (Baker); Northern Hlinois (Calkins); La 

 Salle Co. (Calkins, Huett) ; Joliet, Will Co. (Ferriss, Hand- 



