Phreatoasellus is a genus of isopod crustaceans in the family Asellidae. It contains the following species: \n* Phreatoasellus akyioshiensis (Ueno, 1927) \n* Phreatoasellus higoensis (Matsumoto, 1960) \n* Phreatoasellus iriei (Matsumoto, 1978) \n* Phreatoasellus joianus (Henry & Magniez, 1991) \n* Phreatoasellus kawamurai (Tattersall, 1921) \n* Phreatoasellus minatoi (Matsumoto, 1978) \n* Phreatoasellus uenoi (Matsumoto, 1978) \n* Phreatoasellus yoshinoensis (Matsumoto, 1960)