474 The Molluscan Family Planorhidae 



PLATE 119 



Shells of Planorbidae 



1-3. Planorbula armigera iiidianeyisis F. C. Baker. Uniontown Road, 2 miles southwest 

 of Mt. Vernon, Indiana. 1, holotype; 2, 3, paratypes. U.I., P2833. 



4-6. Planorbula jenksii (H. F. Carpenter). Medford, Massachusetts. U.S.N.M., 41411. 



7,8. Pkmorbula wheatlcyi (Lea). Catoma, Montgomery Co., Alabama. Type. U.S.N. M., 

 29292. 



9. Planorbula irhcatlcyi (Lea). Catoma Creek, Montgomery Co., Alabama. U.S.X.M., 



120929. 



10. Planorbula smithi F. C. Baker. Stevenson, Alabama. Holotype. U.S.N.M., 321196. 

 11, 12. Planorbula smithi F. C. Baker. Stevenson, Alabama. Paratypes. U.S.N.M., 



321196. 

 13. Planorbula christyl (Dall) {^ campestris Dawson). High Bluff, Manitoba. Figured 



type, Alaska Moll., plate ii, figs. 10, 11. U.S.N.M., 63393. 

 14,15. Planorbula christyl (Dall). High BlutT. Manitoba. Paratypes. U.S.N.M., 63393. 

 1(5-21. Helisoma columbiense F. C. Baker. Lake La Hache, Caribou Dist., British 



Columbia. 16, holotype; 17-21, paratypes. M.C.Z., 93710. 

 22-25. Helisoma caribaeum cubcnse F. C. Baker. Zapata Swamp, Cuba. Marl between 



layers of peat. 22, holotype; 23-25, paratypes. U.S.N.M., 404719. 



Figures 1-15 are enlarged about 3^/4 diameters; figs. 16-25 

 are enlarged about 1% diameters. 



