146 



*Unio recttis Lamarck. 



Wabash River, Ohio Eiver, White River, St. Joseph River. 



* Unio retusus Lamarck. 



Wabash River. 

 ■•■■ Unio 1 idibundus Say. 



White River, Wabash River. 



* Unio rubiginosus Lea. 



Ohio River, Wabash River, Lake Maxinkuckee. 

 ■■'Unio !<ecuns Lea. 



Wabash River, Ohio River. 

 •■■ Unio solidus Lea. 



AVabash River. 

 ■* Unio subovatus Say. 



Wabash River, Ohio River, White River. 

 ■•* Unio subrostratus Say. 



Wabash River, Lake Maxinkuckee, Bruiett's Creek, Vigo County. 



Wrongly labelled Unio Jiasutus in the State collection. 



* Unio sulcafus Lea. 



White River, Marion County. 

 ^Unio tenuissimus Lea. 



Wabash River, Ohio River. 



A specimen in the State collection is labelled Unio vellum Say. 

 '^Unio triangulariif Barnes. 



AVabasli River, White River. 



* Unio trigonus Lea. 



Wabash River, Ohio River, 

 ■■ Unio tubercitlatus Barnes. 



Ohio River, Falls of the Ohio. Wabash River. 

 ^Unio undulatus Barnes. 



White River, Ohio River, Wabash River, Bruiett's Creek, Vigo County, 

 ■■ Unio varicosus Lea. 

 ^ Ohio River. 



* Unio ventricosus Barnes. 



Lake Maxinkuckee, St. .Joseph River. 



* Unio veiTiicosus Barnes. 



Wabash River, Ohio River, White River. 

 CiKCiNNATi, Ohio, December 23, 1895. 



