Nautilus pompilius Linnaeus, 1758
Emperor nautilus
Nautilus pompilius
photo by FAO

Family:  Nautilidae (chambered nautiluses)
Max. size:  22.2 cm SHD (male/unsexed); max.weight: 1,675.0 g
Environment:  reef-associated; marine; depth range 0 - 750 m
Distribution:  Indo-Pacific: from Andaman Islands to Philippines, Australia and Fiji.
Diagnosis:  Umbilicus filled in with concretion; flame-striped color pattern extending across nearly entire shell
Biology:  Occurs on the continental shelf and slope. Prefers hard bottoms particularly coral reefs (Ref. 88739), on steep faces (Ref. 106682). Exhibits diel vertical migration. Broken shell washed up on beach (Ref. 88739).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

Source and more info: www.sealifebase.org. For personal, classroom, and other internal use only. Not for publication.