56 THE NAUTILUS. 



U. (inodontoides Lea. Wetumpka. 



U. arctatus Con. Mulberry River and Black Warrior River, 

 common. 



U. arcus Con. Wilsonville, Wetumpka and Fanner. 



U. asperatus Lea. Fort William Slioals and Wilsonville, common. 



U. atrocostatus Lea. Black Warrior River, common. Fort 

 William Shoals. 



U. blandianus Lea. Fort Willam Shoals, one specimen. 



U. brutubyanus Lea. Mulberry River, common. 



U. cahawbaensis Lea. Mulberry River, common. 



U. cerinus Con. Black Warrior River. 



U. chultanoogaensis Lea. Coosa River, Wetumpka. 



U. chunii Lea. Coosa River, Wetumpka, one specimen. 



U. conipactus Lea. Coosa River, Wilsonville and Farmer. 



U. cornulus Bar. Fort William Slioals, Decatur and Wilsonville. 



U- corvunculus Lea. Black Warrior River. 



U- crassidens Lam. Decatur and Coosa River. 



U. ebenus Lea. Decatur. 



U. decisus Lea. Fort William Shoals and Wetumpka. 



U. dolo^us Lea. Wetumpka, common. 



U. dromas Lea. Decatur. 



U. excavatus Lea. Black Warrior River, common ; Wilsonville, 

 one specimen ; Mulberry River and Wetumpka. 



U-fibuloides Lea. Coosa River, Wetumpka, one specimen. 



U. flavescens Lea. Black Warrior River, common ; Mulberry 

 River. 



U. foremanianm Lea. Fort AVilliam Shoals, common. 



U. gibbosus Barnes. Decatur. 



U. gracilis Barnes. Coosa River, Black Warrior River at War- 

 rior, Mulberry River at Blount Springs. 



U. greenii Con. Mulberry River. 



U. instructus Lea. Black Warrior River, common. 



U. lewisii L< j a. Coosa River, Fort William Shoals and We- 

 tumpka. 



U. lienosus Con. Black Warrior River, common. 



U. metaneeer Raf. Fort William Shoals, one specimen. 



U. metastrialus Lea. Black Warrior River. 



U. multiradiatus Lea. Coosa River, Wetumpka, one specimen 

 Wilsonville, one specimen. 



