98 MEMOIRS OF THE CARNEGIE MUSEUM. 



Quemahoning Creek, Stantons Mill, Somerset Co. 



Crooked Creek, Rosston and South Bend, Armstrong Co. 



Little Mahoning Creek, Goodville, Indiana Co. 



Sandy Creek, Sandylake, Mercer Co. 



French Creek, Utica, Venango Co.; Cochranton, Meadville, and Cambridge Springs;, Crawford Co. 



Conneaut Outlet, Conneautlake, Crawford Co. 



Conneaut Lake, Cra\\'ford Co. 



Cussewago Creek, Mosiertown, Crawford Co. (H. & L. Ellsworth). 



Leboeuf Creek, Waterford, Erie Co. 



Connewango Creek, Russell, Warren Co. 



Potato Creek, Smethport, McKean Co. (P. E. Nordgren). 



Monongahela-drainage: 

 Monongahela River, Westmoreland Co. (G. A. Ehrmann); Charleroi, Washington Co. (G. A. Ehrmann) ; 



Millsboro, Washington Co. (J. A. Shafer). 

 Dunkard Creek, Wiley, Dunkard, and Mount Morris, Greene Co." 

 Cheat River, Cheat Haven, Fayette Co. 



Lake Eric-drainage : 

 Conneaut Creek, West Springfield, Erie Co. 



Locality in Pennsylvania represented in the Philadelphia Academy of Natural 

 Sciences: 



Ohio River, Beaver, Beaver Co. (S. N. Rhoads). 



Other localities represented in the Carnegie Museum. 



Lake-drainage: 

 Grand River, Cayuga, Haldimand Co., Ontario, Canada (C. Goodrich). 

 Swan Creek, Toledo, Lucas Co., Ohio (C. Goodrich). 

 Maumee River, Defiance, Defiance Co., Ohio (C. Goodrich). 

 Raisin River, Monroe and Grape P. 0., Monroe Co., Michigan (C. Goodrich). 

 Kalamazoo, Kalamazoo Co., Micliigan (Hartman collection). 



Ohio-drainage: 

 Chautauqua Lake, Chautauqua Co., New York."^ 

 Tuscarawas River, Ohio (Holland collection). 



West Fork White River, Riverside, Greene Co., Indiana (.1. D. Haseman). 



Wabash River, Bluffton, Wells Co., Indiana (C. Goodrich); Wiiite Co., Illinois (G. H. Clapp, donor). 

 Ohio River, Congo, Hancock Co., West Virginia; Toronto, Jefferson Co., Ohio; St. Marys, Pleasants 



Co., West Virginia; Portland, Meigs Co., Ohio; Portsmouth, Scioto Co., Ohio. 

 Cheat River, Jaco, Monongalia Co., West Virginia. 



West Fork River, Lynch Mines, Harrison Co.; Lightburn and Weston, Lewis Co., West Virginia. 

 Little Kanawha River, Grantsville, Calhoun Co. (W. F. Graham); Burnsville, Braxton Co., West Virginia. 

 North Fork Hughes River, Harrisville (W. F. Graham) and Cornwallis, Ritchie Co., West Virginia. 

 Elk River, Shelton and Clay, Clay Co.; Gassaway and Sutton, Braxton Co., West Virginia. 

 Pool of Kanawha River, Glen Ferris, Fayette Co., West Virginia. 



*^ Dead shells have been seen in Tenmile Creek, Amity, Washington Co. 

 ^^ Particulars about these see below, untler var. sterkii. 



