"Difflugia cassis" . _:b75993420 . . "Wallich, 1864" . _:b75993420 . "Difflugia cassis Wallich, 1864" . "Difflugia cassis" . . "10904825" . . "928529" . _:b75993420 . . _:b75993420 "10904825" . . . . _:b75993420 "GBIF id" .