OHIO (Conant, 1951:158-59, 264, except records from Allen, Geauga and Noble counties): _Allen_: Sugar Creek, 6 mi. N Lima (Adler and Dennis, 1960:27). _Ashland_: Long Lake, Lake Twp.; Black Fork, Sec. 27, Green Twp. _Athens_: Hocking River "near" Athens; "near" Fisher, Alexander Twp. _Auglaize_: Pusheta Creek, west of Wapakoneta. _Brown_: White Oak Creek, 1 mi. N Higginsport. _Butler_: Oxford. _Champaign_: Mad River, 4 mi. SW Urbana. _Coshocton_: Walhouding River, below dam. _Defiance_: Auglaize River, Shawnee Scout Camp, Defiance Twp. _Erie_: Huron; Sandusky. _Fairfield_: Buckeye Lake. _Franklin_: Alum Creek, Westerville; Columbus. _Geauga_: Chardon Twp. (Wood, 1959:8). _Greene_: Huffman Dam. _Hamilton_: Harrison; mouth of Miami River. _Hardin_: "near" Hepburn. _Henry_: Maumee River, east of Napoleon; Maumee River "near" Texas; Maumee River, 3 mi. W Texas. _Highland_: Little Brush Creek, 2 mi. N Sinking Spring. _Huron_: Huron River "near" Monroeville. _Jackson_: Canter's Cove, Jackson Twp.; Jackson Lake. _Knox_: Brinkhaven. _Lake_: east branch Chagrin River, Kirtland; Grand River, 4 mi. E Painesville. _Lawrence_: Pine Creek, Elizabeth Twp. _Logan_: Miami River, "near" Indian Lake. _Lorain_: Oberlin. _Lucas_: Lake Erie at Reno Beach, Jerusalem Twp.; Lake Erie, 1/2 mi. offshore from mouth of Crane Creek; Maumee River at Maumee; Swan Creek, W of Toledo; "near" Waterville; Swan Creek "near" Whitehorse. _Madison_: London. _Medina_: Hinckley Lake. _Meigs_: Shade River, below Darwin. _Miami_: Miami River, above Troy. _Monroe_: Cranenest Fork, Green Twp. _Montgomery_: Mad River, Dayton; Miami River, Dayton; Stillwater River, Dayton. _Morrow_: Kokosing River, Franklin Twp. _Noble_: Jct. Sharon Twp. 1 and St. Rt. 78. (Adler and Dennis, 1960:27). _Ottawa_: East Harbour, Catawba Island. _Pike_: Chenoweth Fork, Sunfish Twp.; Scioto River, Camp Creek Twp. _Ross_: Paint Creek near Bainbridge. _Vinton_: Lake Hope; Lake Alma. _Warren_: Fort Ancient. _Washington_: Dam No. 2, Muskingum River, "near" Marietta. _Williams_: 1 mi. S Blakesley; St. Joseph River "near" Blakesley; West Branch, St. Joseph River, Sec. 8, Bridgewater Twp.; Edgerton. _Wood_: Grand Rapids; Grassy Creek, Rossford; Haskins; Maumee River opposite Toledo. PENNSYLVANIA: _Allegheny_: Monongahela River above McKeesport (Atkinson, 1901:154); Ohio River at Pittsburgh (Wied-Neuwied _in_ Stejneger, 1944:44, 49). _Armstrong_: (Swanson, 1952:165). _Clarion_: Clarion River "near" Clarion (Allen, 1955:228); Foxburg (= Foxbury?, Boulenger, 1889:260). _Crawford_: _Elk_: _Erie_: Edinboro Lake. _Forest_: (Swanson, _loc. cit._). _Indiana_: Plum Creek; Crooked Creek (Netting _in_ Stejneger, 1944:48). _McKean_: (Swanson, _loc. cit._). _Somerset_: Stoyestown (Surface, 1908:122). _Warren_: _Venango_: Allegheny River south of Franklin (Swanson, _loc. cit._).