162 A EEVISION OF THE AST ACID JS. 



43. C. Sloauii. 



Indiana : New Albany. 

 Kentucky. (Bundy.) 



44. C. propinquus. 



Dominion of Canada : Montreal ; Toronto. 



New York: Grass River, Black Lake, and Canton, St. Lawrence Co.; Ogden.sburg; 



Lake Ontario; Garrison Creek, Sackett's Harbor; Four-Mile Creek, Osweyo; 



Oneida Lake; Cayuga Lake; Rochester; Niagara; Forestville, Chautauqua Co. 



All of these localities are in the St. Lawrence River system. 

 Indiana: Elkhart River, Rome City, Noble Co.; Delphi; Indianapolis; Michigan 



City; Turmau Creek, Sullivan Co. ; Clear Creek, Bloomington ; White Rivei'; 



Switz City. 

 Illinois : Freeport, Stephenson Co. ; Ogle Co. ; Geneva, Kane Co. ; Pekin, Tazewell 



Co. ; Normal, McLean Co. ; Decatur, Macon Co. ; Aux Plains River. 

 Michigan: St. Clair Eiver; Detroit River ; Northville; Huron River, Ann Arbor ; 



Ecorse ; Kalamazoo River, Otsego. 

 Lake Superior. 



Wisconsin : tributaries of Pecatonica River, Green Co. ; Madison. 

 Iowa : Davenport ; Des Moines River, Ottumwa. 

 VaR. Sanbornii. 



Kentucky : Smoky Creek, Carter Co. 

 Ohio : Oberlin. 

 Vak. obscura. 



New York : Genesee River, Rochester. 



45. C. Harrisonii. 



Missouri : Irondale, Washington Co. 



46. C. virilis. 



Dominion of Canada: Lake Winnipeg; Saskatchewan River; Red River of the 



North ; Toronto ; Montreal ? 

 Dakota : Red River of the North, near Pembina ; Souris or Mouse River. 

 Minnesota : Lake Superior ; Mississippi River ; Lake Minnetonka, Minnehaha 



Creek, Cedar Lake, Bassett's Creek, and Lake Independence, Hennepin Co. 

 Wisconsin: Appleton ; Baraboo River, Ironton ; Sauk City; Wisconsin River; 



Sugar River ; Rock River ; Jefferson ; Milwaukee. 

 Iowa: Davenport; Burlington; Fort Dodge; Spring Vale; Des Moines River; 



Bedford. 

 Nebraska : Omaha. 

 Wyoming : near Laramie City. 



Kansas: Leavenworth; Manhattan; Republican River, N. W. of Fort Riley ; Ellis. 

 Missouri : St. Louis ; Osage River ; Irondale. 

 Illinois : Quincy ; Lawn Ridge ; Decatur ; Normal ; Pekin ; Cairo ; Geneva ; 



Stillman's Creek, Marion. 

 Indiana : Michigan City ; Long Lake, Keudallville ; Elkhart River, Rome City. 

 ? Tennessee : near Lebanon. 

 Arkansas : White River, Eureka Springs. 

 ? Alabama : near Bridgeport, Jackson Co. (See page 97.) 

 Texas. 

 ? New York : Lake George. 



