Distribution and Status of Orconectes (Rhoadesius) sloanii (Bundy) (Crustacea: Decapoda: Cambaridae)

Author Institution: Department of Zoology, The Ohio State University at NewarkThe distribution of the crayfish, Orconectes sloanii (Bundy), is revised from Rhoades' (1962) report. Five county records are added: Dubois, Lawrence, Perry, Rush and Spencer, Indiana; the species has been extirpated from three counties: Miami and Shelby, Ohio, and Shelby, Indiana. Where 0. sloanii is sympatric with Orconectes (Procericambarus) rusticus (Girard), the number of O. rusticus collected usually exceeded the number of O. sloanii. The status of the species as a threatened Ohio crayfish is supported