HELICID^. 59 



Sub-Genus OMPRALINA, Eaf. emend. Binney (type Z. 

 fuliginosa). 



5. Zonites (Omphalina) newberryanus, Binney. 



( ^ Aegopis sp., fide Binney.) 



5 California ; ex c. Prof. W. Newcomb and Prof. Steams. 



6. Zonites (Omphalina) faliginosus, Griffith. 



6 Ohio ; ex c. Prof. W. Newcomb. 



7. Zonites (Omphalina) MahUis, Binney. 



1 Texas ; ex c. Prof. W. Newcomb. 



Sub-Genus STROBILA, Morse (type S. Idbyrinthica). 



[ = GASTBOBONTA, fide Cams and Gerstaecker.] 



8. Zonites (StrohHa) lahyrinthica, Say. 



40 New York and Ohio ; ex c. Prof. W. Newcomb and Eevd. E. R, Beadle. 



Sub-Genus VENTRIDENS, Biimefitrse M. suppressa.) 

 [ = GASTBOBONTA, fide Carus and Gerstaecker.J 



9. Zonites (Ventridens) gularis, Say. 



2 Ohio ; coll. Prof. W. Newcomb. 



10. Zonites (Yentridens) suppressus, Say. 



4 Staten I. 



3 Ohio ; ex c. Prof. W. Newcomb. 



This resembles the Indian N. diplodon ; probably the two 

 forms are congeneric ? 



Sub-Genus MESOMPEIX, Raf. 



The type of MesompMx in Albers is Z. oUvetormn ! emend. 

 Binney (type Z. ligera). 



11. Zonites (Mesomphix) olivetorum, Herrm. 



3 Pyrenees ; ex c. A. Morelet, Esq., and As. Soc. Bengal. 



12. Zonites (Mesomphix) fascosus, Zgi. 



1 SicUy (?); ex c. G. NeviU, Esq. 



