502 PROCEEDINGS OF THE ACADEMY OF [1896. 



119. TJnio dromas Lea. 



Holston River, 1 mile above junction with Tennessee River 

 (68313) ; Tennessee River, near AVilliams Island, Chattanooga 

 (68323) ; Tennessee River, near Knoxville (68326). 



120. TInio edgarianus Lea. 



Clinch River, above Patton's Ferry (69206). 



One of the specimens collected has the lateral teeth reversed. 



121. Unio elegans Lea. 

 Reelfoot Lake (68376). 



The specimens have numerous greenish rays in place of the usual 

 V-like maculation, 



122. TJnio fascinans Lea (fassinans). 



Watauga River, below Watauga Station (68387). 



123. Unio gibbosus Barnes. 



Tennessee River, near Williams Island, Chattanooga (68315) ; 

 Tennessee River, above Knoxville (68324) ; Holston River, 1 mile 

 above junction with Tennessee River (68370) ; Clinch River, above 

 Patton's Ferry, Roane Co. (68314) ; Emory River, near Harriman, 

 Roane Co. (68339) ; Watauga River, near Johnson City, Washing- 

 ton Co. (68325). 



Shells smaller than those of the northern Mississippi Valley, and 

 often light salmon inside, especially in the Holston River speci- 

 mens. 



124. Unio glans Lea. 



Emory River, near Harriman (69377). 



Two specimens of somewhat doubtful specific identity. 



125. Unio gracilis Barnes. 



Wolf River, below Raleigh, Shelby Co. (68700) ; Holston River, 

 1 mile above junction with French Broad (69200). 



126. Unio haysianus Lea. 



Tennessee River, 2 miles above Knoxville (69199). 

 Described from the Cumberland River. 



127. Unio irroratus Lea. 



Holston River, 1 mile above Junction with Tennessee River 

 (68354). 



128. Unio kirtlandianus Lea. 



Watauga River, near Johnson City (69204). 



