"(Deshayes, 1853)" . "589675" . _:b76600155 . _:b76600155 . . . "Placamen retroversum" . . . _:b75662423 . . "507865" . . _:b75662423 . "Placamen retroversum" . _:b76600155 "WoRMS id" . "6524880" . _:b75662423 "GBIF id" . . "Placamen retroversum (Deshayes, 1853)" . _:b75662423 "6524880" . "Placamen retroversum" . . . . _:b75662423 . . _:b76600155 "507865" . _:b76600155 . .