294 ORTMANN— THE ALLEGHENIAN DIVIDE. [April i8. 



G. A. Ehrmann in the vicinity of Charleroi, Washington Co., Pa. 

 (and a few scattered additional records secured by others). The 

 following is the list of these. 



List No. J. 



1. Fusconaia suhrotunda (Lea) 



2. Fusconaia undata trigona (Lea) 



3. Fusconaia undata rubiginosa (Lea) 



4. Quadrula pustulosa (Lea) 



5. Quadrula tuherculata (Barn.) 



6. Quadrula metanevra (Raf.) 



7. Quadrula cylindrica (Say) 



8. Plethobasus cyphyus (Raf.) 



9. Pleurohema obliquum (Lam.) 



10. Pleurohema obliquum pyramidatum (Lea) 



11. Elliptio crassidens (Lam.) 



12. Elliptio dilatatus (Raf.) 



13. Symphynota costata (Raf.) 



14. Anodonta grandis Say 



15. Strophitus edentulus (Say) 



16. Ptychobranchus pliaseolus (Hildr.) 



17. Obliquaria reflexa Raf. 



18. Cy progenia irrorata (Lea) 



19. Obovaria cir cuius (Lea) 



20. Obovaria cir cuius lens (Lea) 



21. Nephronaias ligamentina (Lam.) 



22. Plagiola depressa (Raf.) 



23. Paraptera gracilis (Barn.) 



24. Proptera alata (Say) 



25. Eurynia recta (Lam.) 



26. Lampsilis luteola (Lam.) 



2y. Lampsilis ovata ventricosa (Barn.) 

 28. Lampsilis orbiculata (Hildr.) 



The following species have not been found here, but were prob- 

 ably present in this region, since they exist both below and above : 



