| Family: |
Nautilidae (chambered nautiluses) |
| Max. size: |
16 cm SHD (male/unsexed) |
| Environment: |
reef-associated; marine; depth range 0 - 500 m |
| Distribution: |
Western Pacific. |
| Diagnosis: |
Umbilicus has deep, round-shouldered concavity (Ref. 346), not filled with a concretion; reduced color markings on shell (Ref. 275). |
| Biology: |
Consumed by artisanal fishers and supports small fisheries for private and public aquaria and research trade (Ref. 346). Occurs at depths of 0 to 500 m on the continental shelf and slope. Broken shell washed up on beach (Ref. 88739). Has poor vision; instead, utilizes scent and touch to recognize and look for food. At night, it actively forages at 20 m depth. It adjusts gases contained in its chambered body to facility vertical movement (Ref. 101162). |
| IUCN Red List Status: |
Not Evaluated (N.E.) Ref. 123251)
|
| Threat to humans: |
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| Country info: |
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