"Oligochaeta Soviet Union." . . . . . "Aquatic oligochaeta of the USSR = Vodnye maloshchetinkovye chervy fauny SSSR" . . . . . . . . "Aquatic oligochaeta of the USSR Vodnye maloshchetinkovye chervy fauny SSSR"@en . . . "Vodnye maloshchetinkovye chervy fauny SSSR" . "Vodnye maloshchetinkovye chervy fauny SSSR"@en . "Aquatic oligochaeta of the USSR" . . .