. _:b76710728 "WoRMS id" . "Perty, 1849" . _:b76160150 . . _:b76710728 . _:b76160150 . . . _:b76160150 "7975026" . "965904" . . _:b76160150 . "Closterium polymorphum" . . "Closterium polymorphum Perty, 1849" . . "667940" . "Closterium polymorphum" . _:b76710728 "667940" . _:b76710728 . . _:b76160150 "GBIF id" . . "7975026" . _:b76710728 .