70 Trans. Acad. Sci. of St. Louis. 



6. MuscuLiuM TRUNCATUM Lindsey. 



Pond, Flat Creek, Pettis Co. 



7. MuscuLiuM SECURis Prime. 



Flat Creek, Pettis Co. (or near). 



8. MuscuLiuM ELEVATUM Hald. 



Coon Creek, Jasper Co.; Jackson, Cape Girar- 

 deau Co. ; Pond, Flat Creek, Pettis Co. 



pisiDiuM Pfeifer. 



9. PisiDiuM coMPREssuM Prime. 



Flat Creek, Pettis Co. 



10. PiSIDIUM FRAISTDULENTUM Sterki. 



Flat Creek, Pettis Co. 



11. PiSIDIUM NovEBOREisrsis Prime. 



Flat Creek, Pettis Co. (near). 



12. PiSIDIUM NEGLECTUM Sterki. 



Branch of Muddy Creek, Pettis Co. 



GASTROPODA. 



Anisopleura. 



PEOSOBEANCHIATA. 



Rhipidoglossa. 



HELICINIDiE. 



HELiciNA Lam. 



13. Helicina orbiculata Say. 



Stone Co. (Pilsbry) ; Marble Cave, Stone Co. 

 (Stearnes). 



Shimek says this is not found north of the south line 

 of Kentucky, either recent or fossil. 



