. "Den Hartog (1987)" . "Den Hartog, J. C. 1987. A redescription of the sea anemone Bunodosoma biscayensis (Fischer, 1874)(Actiniaria, Actiniidae). Zoologische Mededelingen, 61(36): 533-559." . "1987"^^ . . . "Den Hartog (1987)" . "1987"^^ .