Photo of Animalia: Bellybutton Nautilus (species: Nautilus macromphalus) (Lizard Island Field Guide)

Photo of Animalia: Bellybutton Nautilus (species: Nautilus macromphalus)

Detail of umbilicus of 16 cm Nautilus macromphalus shell washed up at Coconut Beach, Lizard Island. The shell has clearly been floating for some time as the umbilicus is encrusted with tube worms.
© Anne Hoggett

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