Fish Leeches

Piscicolid fish leeches. Upper: river darter, Percina shumardi from Little River, Oklahoma, with Myzobdella sp. leech (arrow) on caudal fin. Middle: female redfin darter, Etheostoma whipplei with Myzobdella sp. leech on anal fin (arrow) from Ten Mile Creek, Saline County. Lower: Close-up of same leech.

one photo of fish with leech on black background second photo of fish in water third photo closeup of leech

Upper photo courtesy Uland Thomas; Middle and lower photos by C. T. McAllister