94 THE NAUTILUS. 



Pleurobema macnlutum (Conrad). Clinch, Cedar Bluff, Cleve- 

 land, St. Paul, north fork of Holston. 



Pleurobema oviforme (Conrad). "Runs into clinchense Lea." 

 Clinch, Cedar Bluff, Cleveland. 



Pleurobema sp. ? " Looks like a flattened obliquum Lam." Clinch, 

 Cleveland. 



Pleurobema argentum (Lea). " With many synonyms, such as 

 planior Lea and brevis Lea." Clinch, Cedar Bluff, Cleveland, 

 Fink, St. Paul, Powell, Big Stone Gap, Big Moccasin, Moccasin 

 Gap. 



Ettiptio gibbosus (Barnes). Clinch, Cedar Bluff, Cleveland, 

 Fink, St. Paul, also in middle fork of the Holston. 



Lastena laf.a (Raf.). Clinch, Cleveland, St. Paul. 



Symphynota costata (Raf.). Clinch, Cedar Bluff, Cleveland, 

 Fink, St. Paul ; also in middle fork of the Holston. 



Symphynota holston (Lea). "Not an Alasmidonta" Clinch, 

 Cedar Bluff, Powell, Big Stone Gap, Little Moccasin, Gate City. 



Alasmidonta minor (Lea). Clinch, Cedar Bluff, Cleveland, Fink, 

 St. Paul ; also in the Holston. 



Alasmidonta marginata (Say). Clinch, Cleveland, Fink, St. 

 Paul ; also in middle fork of Holston. 



Strophitus edentulus (Say). Clinch, Cedar Bluff, Cleveland, St. 

 Paul. 



Micromya caelata (Conrad). Clinch, St. Paul. 



Ptychobranchus phaseolus (Hild.). Clinch, Cleveland, Fink, St. 

 Paul. 



Ptychobranchus subtentus (Say). Clinch, Cedar Bluff, Cleveland, 

 St. Paul ; in middle fork of Holston. 



Nephronaias ligamentina gibba (Simp.). Clinch, St. Paul. 



Nephronaias perdix (Lea). Clinch, Cleveland, Fink, St. Paul. 



Medionidus conradicus (Lea). Clinch, Cedar Bluff, Cleveland, 

 Fink, St. Paul, Powell, Big Stone Gap, Big Moccasin, Moccasin 

 Gap. 



Eurynia fabalis (Lea). Clinch, Cleveland, St. Paul. 



Eurynia perpurpurea (Lea). Clinch, Cedar Bluff, Cleveland, 

 St. Paul. 



Eurynia nebulosa (Conrad). Clinch, Cedar Bluff, Cleveland, 

 Fink, St. Paul, Powell, Big Stone Gap, Big Moccasin, Moccasin 

 Gap. 



