90 HELICrD^. 



249. Helix (Polygyra) paludosa, Pfeiffer. 



5 Cuba; ex c. Prof. W. Newcomb. 



260. Helix (Polygyra) microdonta, Deshayes. 



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



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



251. Helix (Polygyra) notata, Poey. 



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



252. Helix (Polygyra) carpenteriana, Bland. 



11 Florida ; ex c. Prof. W. Newcomb and Prof. E. C. Stearns. 



263. Helix (Polygyra) septemvolva, Say. 



14 Florida; ex c. Prof. W. Newcomb and Prof. E. C. Stearns. 



264. Helix (Polygyra) cereolus, Miihif. 



20 Florida ; ex c. Prof. W, Newcomb and Prof. E. 0. Stearns. 



266. Helix (Polygyra) volvoxis, Parr. 



30 Georgia ; ex c. Prof. W, Newcomb and Eevd. E. R. Beadle. 



Sub-Genus POLrGYSULL A, Blaniiiy^e S. polygyrella. 

 Bland). 



266. Helix (Polygyrella) polygyrella, Bland. 



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



Sub-Genus OPEIO&YBA, Beck, (type S. polygyrata. Born.) 



257. Helix (Ophiogyra) polygyrata, Bom. 



2 Brazil ; ex c. As. Soc, Bengal, and G. Nevill, Esq. 



268. Helix (Ophiogyra) helicycloides, Orbigny. 



3 Brazil (?) ; ex. c. G. Nevill, Esq. 



var. 



2 Brazil (?) j ex c. G. Nevill, Esq. 



269. Helix (Ophiogyra) heligmoidea, Orbigny. 



3 Qunraquil ; ex c. A. Morelet, Esq, 



