ORTMANN: monograph of the naiades of PENNSYLVANIA. 55 



Localities in Pennsylvania, represented in the Carnegie Museum: 



Ohio River, Shippingport, Cooks Ferry, and Industry, Beaver Co. 



Beaver River, Wampum, Lawrence Co. (G. H. Clapp & H. H. Smith). 



Mahoning River, Mahoningtown, Coverts, and Edinburg, Lawrence Co. 



Shenango River, Harbor Bridge and Pulaski, Lawrence Co.; Clarksville and Shenango, Mercer Co. 



Pymatuning Creek, Pymatuning Township, Mercer Co. 



Allegheny River, Aladdin, Godfrey, Johnetta, and Kelly, Armstrong Co. 



French Creek, Utica, Venango Co.; Cochranton and Mcadville, Crawford Co. 



Monongahela River, Charleroi, Wasliington Co. (G. A. Ehrmann). 



Localities in Pennsylvania, represented in the Philadelphia Academy of Natural 

 Sciences: 



Ohio River, Beaver, Beaver Co., and Coraopolis, Allcghcuy Co. (S. N. Rhoads). 



Other localities represented in the Carnegie Museum: 



Ohio-drainage: 

 Ohio River, Toronto, Jefferson Co., Ohio; Parkersburg, Wood Co., West Virginia; Portsmouth, Scioto 



Co., Oliio. 

 Tuscarawas River, Ohio (Holland collection).'" 



West Fork River, West Milford, Harrison Co., W. Va. (W. F. Graham)." 

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



Virginia. 



Tennessee-drainage: 

 Tennessee River, Florence, Lauderdale Co., Alabama (H. H. Smith). 

 Bear Creek, Burleson, Franklin Co., Alabama (H. H. Smith). 



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

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



Grainger Co.; Austin Mill and Church Hill, Hawkins Co., Tennessee. 

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

 Big Mocassin Creek, Mocassin Gap, Scott Co., Virginia. 

 Clinch River, Edgemoor and Clinton, Anderson Co.; Clinch River Station, Claiborne Co., Tennessee; 



Speers Ferry and Clinchport, Scott Co., Virginia." 

 Powell River, Combs, Claiborne Co., Tennessee. 



West of the Mississippi: 

 Black River, Black Rock, LawTence Co., Arkansas (H. E. Wheeler). 

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

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

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

 Neosho River, near state line, Kansas (R. L. Moodie); IMiami, Ottawa Co., Oklahoma (F. B. Isely). 



*^ Ten specimens are at hand, but only two or three approach the smooth form, and none is entirely 

 smooth. 



*^ An entirely smooth specimen. 



■" In the upper North Fork of the Holston and the upper Clinch River in Virginia, the var. slrigillata 

 gradually replaces the normal form. 



