280 MEMOIRS OF THE CARNEGIE MUSEUM. 



Tennessee-drainage : 

 Paint Rock River, Paint Rock, Jackson Co., Alabama (H. H. Smith). 

 Tennessee River, Florence, Lauderdale Co., Alabama (H. H. Smith); Concord and Knoxville, Knox Co., 



Tennessee. 

 French Broad River, Boyd Creek, Sevier Co., Tennessee. 

 Nolichucky River, Chunns Shoals, Hamblen Co., Tennessee. 

 Holston River, McMillan and Mascot, Knox Co.; Hodges, Jefferson Co.; Turley Mill, Noeton, and 



Holston Station, Grainger Co., Tennessee. 

 North Fork Holston River, Rotherwood, Hawkins Co., Tennessee. 

 Clinch River, Sol way, Knox Co.; Edgemoor, Clinton, and Offutt, Anderson Co.; Clinch River Station, 



Claiborne Co.; Oakman, Grainger Co., Tennessee; Clinchport, Scott Co., Virginia; St. Paul, 



Wise Co., Virginia. 

 Powell River, Combs, Claiborne Co., Tennessee. 



Mississippi-drainage and westward: 

 Kaskaskia River, Illinois (G. H. Clapp, donor). 

 Mississippi River, Muscatine, Muscatine Co., Iowa (Hartman collection); Moline, Rock Island Co., 



Illinois (P. E. Nordgren). 

 Kishwaukee River, Rockford, Winnebago Co., Illinois (P. E. Nordgren). 

 Meramec River, Meramec Higlilands, St. Louis Co., Missouri (N. M. Grier). 

 James River, Galena, Stone Co., Missouri (A. A. Hinkley). 

 White River, Cotter, Baxter Co., Arkansas (A. A. Hinkley). 

 Black River, Black Rock, Lawi-ence Co., Arkansas (H. E. Wheeler). 

 Saline River, Benton, Saline Co., Arkansas (H. E. Wheeler). 

 Ouachita River, Arkadelphia, Clark Co., Arkansas (H. E. Wheeler). 

 Neosho River, Miami, Ottawa Co., Oklahoma (F. B. Isely). 



Alabama-drainage: 

 Coosa River, Wilsonville, Shelby Co.; Riverside, St. Clair Co., Alabama (H. H. Smith). 

 Chattooga River, Cedar Bluff, Cherokee Co., Alabama (H. H. Smith). 



Distribution and Ecology in Pennsylvania (See fig. 29) : Eurynia recta is found 

 in Pennsylvania in Lake Erie and in the Ohio-drainage. In the latter it distinctly 

 prefers the larger rivers, where it is generally abundant, and attains a huge size. 

 In the Allegheny it goes up to Warren County. Yet it has also entered some of 

 the smaller tributaries. It is found in the lower part of Crooked Creek, in French 

 Creek (up to Cambridge Springs), and in Connewango Creek. It also must have 

 gone up the Kiskiminetas, for dead shells have been seen in the Conomaugh at 

 New Florence. In the Monongahela-drainage it is present in the lower part of 

 Dunkard Creek, and it is in Cheat River, where it passes up into West Virginia. 

 On the other hand, its total absence in the whole Beaver-drainage is most remark- 

 able. 



Its ecological preferences show that it is mainly a form of tiie big rivers. In 

 the Ohio it belongs chiefly to the shell-banks in the deep channel of the river with 



