Bulletin 4 263 



Explanation op Plate ii. 



(31) 



Page. 

 Fig. I. Cerithium gainesense n. sp 106, 220. 



2. Cerifhiuin globoleve n. sp " 



3. Cerithium jJzediavicB n. sp 107, 221. 



Gutta-percha mould, 

 a. Aperture of this species. 



4. Cerithium penrosei Harris. f-- 



5. Turritella tennesseensis Gabb 108, 222. 



6. Turritella alabamiensis Whitf.* 109, 223. 



7. Turritella saffordi Gabb 



8. Turritella mortoni var no, 224* 



9. T. m-ortoni var. levicunea n. var 



10. Tjirritella var. of humerosa?'^ 



11. Turritella humerosa Con.* 



1 2 . Turritella humerosa Con. var 



13. Turritella hum-erosa Con. var. f 



14. Turritella nerinexa Har.t m, 225* 



1 5 . Mesalia pumila Gabb , ( Type specimen )........ 112, 226. 



16. M. pumila var. wilcoxiana, Ald.f; from Texas " " 



17. M. pumila var. wilcoxiana Aid.* (Type) " " 



18. M. pumila Gabb, var " " 



19. M. pumila var. hardem-anensis Gabb " " 



20. M. pum-ila var. allentonensis Aid.* 113, 227« 



21. M. pum,ila var. allentonensis Aid.* " 



