UPPER TENNESSEE DRAINAGE. 



609 



t6. A. marginata 

 t*7. Pegias fabula 



fS. Strophitus edentulus 

 t*9. Ellipsaria subtenta 

 fio. Nephronaias pectorosa 

 *ii. To.Yolasiiia lividum 



t*i2. Medionidus platcolus 

 1*13. Euryiiia nebulosa 

 t*i4. £. vanuxemensis 



fiS. Lampsilis ovata ventricosa 



ti6. L. fasciola 



North Fork Holsfon River, Holston, Washington Co., Va. 

 Walker coll. (x\dams, Aug. 13, '01). 



1. Fusconaia cor analoga 



2. F. barnesiana ) 



3. F. barnesiana bigbyoisis C 



4. Lexingtonia dolabelloides con- 



radi 



5. Plcurobema oviforme argent cum 



6. Etliptio dilatatus 



7. Lasmigona costata 



8. Pegias fabula 



9. Ellipsaria subtenta 



10. Neplironaias pectorosa 



11. Toxolasma lividum 



12. Lemiox rimosus 



13. Medionidus platcolus 



14. Eurynia nebulosa 



15. Lampsilis fasciola 



North Fork Holston River, Mendota, Washington Co., Va. 



*^Walker coll. (Adams, Oct. 13, '00); t = Carn. ]\Ius. (Ort- 

 mann, July 5, '13). 



fi. Fusconaia pilaris bursa-pastoris 



t2. F. cuneolus 



*t3. F. cor analoga 



t4. F. barnesiana 



t5. F. barnesiana bigbyensis 



t6. Quadrula intermedia 



t7- Q- cylindrica strigillata 



8. Rotundaria tuberculata 



*tg. Lexingtonia dolabelloides con- 



radi 



fio. Pleurobema oviforme 



fii. P. oviforme argent eum 



*\i2. Elliptio dilatatus 



ti3. Lasmigona costata 



ti4. Alasmidonta marginata 



fiS. Pegias fabula 



ti6. Ellipsaria fasciolaris 

 *fi7. E. subtenta 



ti8. Nephronaias pectorosa 



*I9. Medionidus platcolus 



f20. Eurynia perpurpurea 

 *t2i. £. nebulosa 



t22. £. vanuxemensis 



t23. Lampsilis ovata ventricosa 



t24. L. fasciola 



t25. Truncilla triquetra 



*26. T. capsccformis 



North Fork Holston River, Hilton, Scott Co., J^a. 

 Carn. Mns. (Ortmann, July 7, "13). 



1. Fusconaia pilaris bursa-pastoris 



2. F. pilaris lesucuriana 



3. F. cuneolus 



4. F. cor analoga 



5. Amblema plicata costata 



6. Quadrula cylindrica strigillata 



7. Rotundaria tuberculata 



8. Lexingtonia dolabelloides con- 



radi 



9. Pleurobema oviforme ] 



10. P. oviforme argenteum C 



11. Elliptio dilatatus 



