THE NAUTILUS. 127 



It is not known whether this description was published before or 

 after the following, both appearing in 1842. This is the compara- 

 tively large shell commonly known as P. pentodon, and figured as 

 such in Binney's Manual. 



''Pupa tappiana (Ward) Pfr. * * * conical-ovate, with 1 strong 

 parietal tooth, 1 columellar, 4 or 5 smaller on outer lip; length 2, 

 diam. 1^ mm. Vermont." (Pfr., Symbols ad Hist. Heliceorum, 

 ii (1842), p. 55.) 



This may well be considered a synonym of tappaniana Ad. 



PLATE VI. 



Bifidaria pentodon (Say). 



Figures 1-4. Buckfield, Maine. John A. Allen, Acad. Nat. Sci. 

 No. 87304. 



5. Woodland, Maine. O. Nylander. No. 58249. 



6. Fairfield, Maine. J. H. Thomson. No. 58248. 



7. Westbrook, Maine. A. D. Brown Collec. (Bolles). No. 4263. 



8. Buckfield, Maine. John A. Allen. No. 87307. 



9. Cotype of P.floridana Dall. Alachua Co., Fla. W. H. Dall. 

 No. 58242. 



10. Mt. Taylor, S. of Volusia, Volusia Co., Fla. H. A. Pilsbry. 

 No. 72769. 



11. Drift of Sinking Spring, San Marcos, Texas. H. A. Pilsbry. 

 No. 90454. 



12. Drift of Guadalupe R., 4 m. above New Braunfels, Texas. 

 H. A. Pilsbry. No. 90456. 



13. Wetumpka, Alabama. H. H. Smith. No. 87151. 



14, 15. Near Valley Head, Alabama. H. H. Smith. No. 90451. 

 16, 17. Near Wetumpka, Alabama. H. H. Smith. No. 90458, 

 18, 19. Woodville, Alabama. H. E. Sargent. No. 66901. 

 20. Big Wills Walley, 2 m. S. of Valley Head, Alabama. H. H. 

 Smith. No. 90453. 



21-27. Near Wetumpka, Alabama. H. H. Smith. No. 90425. 



PLATE VII. 



Bifidaria pentodon (Say). 



Figures 28, 29. Troy. New York. T. H. Aldrich. A. N. S., 

 No. 58251. 



30. Greenwich, New York. T. Bland. No. 3924. 



31. Henry Co., Indiana. R. Walton Collec. No. 58240. 



32. Ocean City, New Jersey. H. A. Pilsbry. No. 72709. 



33. Near Des Moines, Iowa. T. Van Hyning. No. 88439. 



34. 35. Near New Philadelphia, Ohio. Dr. V. Sterki. No. 58239. 

 36. P. cincinnatiensis Judge. Cincinnati, Ohio. Wm. Doherty. 



No. 58244. 



