. "Calliostoma (Benthastelena) diadematum B.A. Marshall, 1995" . . . . _:b76689287 . . _:b76689287 . "B.A. Marshall, 1995" . . . _:b76689287 "1665809" . . "Calliostoma (Benthastelena) diadematum" . . "Calliostoma (Benthastelena) diadematum" . "1665809" . "1027554" . _:b76689287 "WoRMS id" . _:b76689287 .