600 



ORTMANN— NAYADES OF 



Clinch River, Fink, Russell Co., Va. 

 Carn. ]\Ius. (Ortmann, May 12, 



1. Fusconaia pilaris bursa-pastoris 



2. F. cor analoga 



3. F. barnesiana bigbyensis 



4. Amblema plicata costata 



5. Quadrula cylindrica strigillata 



6. Plcurobema oviforme argenteum 



7. Elliptio dilatatus 



8. Lasmigona costata 



"13)- 



9. Alasmidonta marginata 



10. Ellipsaria fasciolaris 



11. Nephronaias pectorosa 



12. Medionidiis plateolus 



13. Eurynia ncbulosa 



14. Lampsilis ovata ventricosa 



15. L. fasciola 



16. Truncilla capsccformis 



Clinch River, St. Paul, Wise Co., Va. 

 *^ Walker coll. (Adams, Aug. 8, 

 mann, May 14, '13). 



'99); ■j- = Carn. ]\Ius. (Ort- 



fi. Fusconaia pilaris biirsa-pastoris 



t2. F. cor analoga 



t3. F. barnesiana bigbyensis 

 *t4. Amblema plicata costata 



ts. Lcxingtonia dolabelloides con- 

 radi 



t6. Plcurobema oviforme argenteum 

 *t7. Elliptio dilatatus 



fS. Lastena lata 

 *t9. Lasmigona costata 

 fio. Alasmidonta minor 

 •■tii. .'J. marginata 

 ti2. Strophitus edentulus 



*fi3. Ellipsaria fasciolaris 

 *ti4. Ellipsaria subtenta 



fiS. Nephronaias ligamenti)ta gibba 

 *ti6. //. pectorosa 



fiy. Lemiox rimosus 

 *ti8. Medionidiis plateolus 



fig. Eurynia fabalis 



t2o. £. perpurpurea 

 *t2i. £. nebiilosa 



t22. £. recfa 



t23. Lampsilis ovata ventricosa 

 *t24. L. fasciola 

 *t25. Truncilla capsccformis 



Clinch River, Dungannon, Scott Co., J^a. 

 Walker coll. (Adams, Aug. 11, "99). 

 I. Amblema plicata costata 2. Truncilla torulosagubcrnaculum 



