Nautilus macromphalus G.B. Sowerby II, 1849 Chambered Nautilus, Marine, Occasionally washes ashore on northern beaches. Compared to N. pompilius, macromphalus has a deep umbilicus Far North, Kermadecs, NE Australia, New Caledonia KA |
Nautilus pompilius Linnaeus, 1758 Chambered Nautilus, Marine, Occasionally washes ashore on northern beaches. Compared to N. macromphalus, pompilius has calcified layer covering umbilicus Far North, Kermadec Islands KA |