LiMNAEAf Ei\ . 247 



52. Planorbis(Bathyomphalus)redfieldi,C.B. Ad. 



1 Jamaica ; coll. VV. A. Brown, Esq. 



53. Planorbis (Bathyomphalus) luridus, Pfeifler. 



3 Cuba; ex c. Dr. F. Stoliczka. 



54. Planorbis (Bathyomphalus) spirorbis, Muii«-r. 



30 England and Germany ; coll. G. Nevill, Esq. 



Sub-Geuus ARMIGER, Hartm. 



55. Planorbis (Armiger) nautileus, lann. 



[?= P. crista, Linn., var.] 

 6 Yarkand ; coll. Dr. F. Stoliczka. 



56. Planorbis (Armiger) crista, Linn, 



[= p. wibricatus, MUlL] 

 15 England ; coll. G. Nevill, Esq. 



Sub-Genus (?) 



57. Planorbis singiilaris, Mss. 



2 Ovalau; ex. Museum Godeffroy. 



58. Planorbis oregonensis, Tryon, 



1 Steins V., Oregon ; ex c. Prof. W. Newcomb. 



Sub-family ANCYLEA, Mke. 



Genus ANCYLUS, Geoffroy. 



1. Ancylus obliqUUS, Brad. & Sow. 



5 Lima ; ex. c A. Morelet, Esq. 



2. Ancylus tardus. Say. 



6 New York ; coll. Prof. W. Newcomb. 



3. Ancylus patelloides, Lea. 



3 Idaho ; ex. c. Prof. E. C. Stearus- 



