144 



'■■• Unio graniferus Lea. 



Wabash River, Ohio River. 



* Unio iVis Lea. 



Wabash River, Delaware River, Lake Maxinkuckee. 



* Unio irrorratus Lea. 



Wabash River, Ohio River. Very abundant, perfect and beautilul in the 

 AVabash. 

 *Unio lens Lea. 



See Unio circulns, of which it is a synonym. 

 ■■ Unio Hyamentinus Lamarck. 



Wabash River, Ohio River, Yellow River, Turkey Creek, Delaware River, 

 St. Joseph River. Widely distributed over the State. The most com- 

 mon Unio of our waters, with the possible exception of Unio luteohis. 

 ■■■Unio Inteolns Lamarck. 



Whitewater River, White River, Wabash River, Ohio River, St. Mary's 

 River, Turkey Creek, Cedar Creek, Fourteen Mile Creek, Charle.ston ; 

 Lake Maxinkuckee. 

 *Unio metanevrus Rafinesque. 

 Wabash River, Ohio River. 



* Unio muUiplicalus Lea. 



Wabash River, Ohio River; a mud-loving form which reaches gigantic size 

 in both these streams. Very large and fine specimen.s are in the State 

 collection. 

 *Unio multiradiatus Lea. 



Wabash River, White River, St. .Joseph River. 



* Unio mytiloides Rafinesque. 



Wabash River, ( )hio River. 



* Unio nigerritnus Lea. 



Wabash River; a single specimen is in the State collection, labelled correctly 

 as above — though the locality can not be vouched for. Mr. Lea described 

 the form from Alexandria, Louisiana. The collection contains many 

 southern shells and I am inclined to regard this locality leference as an 

 error and to think the shell should not be reckoned as an Tndiana form. 



* Unic obiiquus Lamarck. 



Wabash River, Ohio River; probai)ly the same form Ratines(|ue called 

 mytiloides. 



