150 Clement L. Counts, III 



115). Hancock Co.: SR 2, 3.8 km N of Weirton (MUMC 284). Jackson 

 Co.: SR 35, 3.5 km E of Putnam Co. line (MUMC 128); US 33, 5.6 km 

 E of Ripley (MUMC 154). Kanawha Co.: Nitro (MUMC 118). Lincoln 

 Co.: SR 34, 3.2 km S of Putnam Co. line (MUMC 1 12). Logan Co.: SR 

 10, 4.3 km E of Davin (MUMC 389); Chapmanville (MUMC 575); Big 

 Creek (MUMC 577): Chief Logan State Park (MUMC 594). Mason 

 Co.: McClintic Wildlife Refuge Station (MUMC 59). Mineral Co.: US 

 50, 9.1 km E of Grany Co. line (MUMC 567). Mingo Co.: Grey Eagle 

 (MUMC 535). Monroe Co.: SR 12, 0.2 km S of Red Sulphur Springs 

 (MUMC 522). McDowell Co.: US 52, 9.6 km W of Welch (MUMC 

 702). Ohio Co.: SR 2, 1.6 km E of Warwood (MUMC 256). Pendleton 

 Co.: Mouth of Seneca (MUMC 627). Putnam Co.: Hurricane (MUMC 

 72); SR 34 off US 60, Clymer's Creek Rd. (MUMC 81); SR 34, 3 km N 

 of Kanawha River (MUMC 144). Roane Co.: US 33, 5.6 km E of Jack- 

 son Co. line (MUMC 136). Summers Co.: SR 3, 2.6 km E of Nimitz 

 (MUMC 505, 507); SR 3, 2.6 km W of Jumping Branch (MUMC 517). 

 Wayne Co.: SR 75, Lavalette (MUMC 104); SR 75, Shoals (MUMC 

 562); Beech Fork (MUMC 638). Wirt Co.: SR 14, 4 km N of Roane Co. 

 line (MUMC 174). 



Mesodon sayanus (Pilsbry, 1906). — Mesodon sayanus occurs prim- 

 arily in the eastern highlands, and in the Kanawha and Guyandotte 

 river valleys of the southwest (Fig. 8). A few populations are also found 

 in the floodplain of the Ohio River in the northern panhandle, and in 

 the southwest corner of the state. Cabell Co.: Ona (MUMC 541). Grant 

 Co.: SR 93, 11.3 km E of Tucker Co. line (MUMC 463). Logan Co.: 

 Chief Logan State Park (MUMC 586). Pocahontas Co.: Cranberry 

 Glades (MUMC 621). Putnam Co.: Hurricane (MUMC 70). Raleigh 

 Co.: Slab Fork (MUMC 375). Wayne Co.: Cabwaylingo State Park 

 (MUMC 289). 



Mesodon zaletus (Binney, 1837). — This species was found in essen- 

 tially the same distribution pattern as M. sayanus (Fig. 9). Cabell Co.: 

 SR 2, 3.2 km E of Huntington (MUMC 1). Mercer Co.: Flat Top 

 (MUMC 310). Pocahontas Co.: Cranberry Glades (MUMC 619). Tucker 

 Co.: Dolly Sods (MUMC 569). Wyoming Co.: SR 10, 4.8 km S of 

 Logan Co. line (MUMC 718). 



Mesodon appressus (Say, 1821). — Populations of M. appressus are 

 most heavily concentrated in the southeast, with a single northern popu- 

 lation in Monongalia County (Fig. 10). Boone Co.: SR 3, 3.4 km E of 

 US 119 (MUMC 424); Peytona (MUMC 489). Cabell Co.: 8342 Big 

 Seven Mile Rd. (MUMC 38, 51). Fayette Co.: US 60, 7.5 km W of 

 Gauley Bridge (MUMC 223). Lincoln Co.: SR 10, 3.2 km W of West 

 Hamlin (MUMC 88); Alkol (MUMC 450). Logan Co.: Chief Logan 

 State Park (MUMC 588). Mingo Co.: Grey Eagle (MUMC 534). 



