IJMNAEACEA. 235 



15. Limnseus vahli, Beck. 



1 Greenland ; ex c. G. Nevill, Esq. 



16. Limnseus glaber, Mull. 



3 England ; coll. E. Webster, Esq. 



8 France ; coll. Michand, ex. c. As. Soc, Bengal. 



17. Limnseus palustris, Drap. 



3 Berlin ; coll. Dr. Ed. von Martens. 



2 Neufchatel; ex c. G. Nevill, Esq. 



8 England; coll, G. Nevill, Esq., and ex c. As. Soc, Bengal. 



18. Limnseus stagnalis, Linn. 



2 France and Germany ; ex c. As. Soc, Bengal. 

 2 England ; coll. G. Nevill, Esq. 

 14 Srinuggur; coll. Dr. F. Stoliczka. 



var. rapliidia, Bourg. 



2 Middlesex ; coll. G. Nevill, Esq. 



var. appressa, Saj. 



2 Lake Champlain ; ex c. W. A. Brown, Esq. 



8 Michigan ; ex c. Eev. E. E. Beadle and W. A. Brown, Esq. 



19. Limnseus bulimoides, Lea. 



4 California ; ex c Prof. W. Newcomb. 



20. Limnseus desidiosus, Say. 



24 Ohio; ex c. Kev. E. E. Beadle and W. A. Brown, Esq. 



21. Limnseus gracilis, Say. 



(Type of the Sub-Grenus Acella, Hald.) 

 8 Lake Champlain ; ex c. A. Morelet, Esq., and W. A. Brown, Esq. 



22. Limnseus emarginatus, Say. 



4 Lake Superior; ex c. W. A. Brown, Esq. 



23. Limnseus fragilis, c. B. Adams. 



2 California; ex c. Prof. W. Newcomb. 



24. Limnseus exiguus, Lea. 



[= L. humilis, var. fide Binney. ] 



3 S. Carolina ; ex c. W, A. Brown, Esq. 



