Cephalopoda | Nautilida
Jereb, P. and C.F.E. Roper (eds.). 2005. (Ref. 1695)
Size / Weight / Age
Max length : 22.2 cm SHD male/unsexed; (Ref. 1695); max. published weight: 1.7 kg (Ref. 1695)
Reef-associated; depth range 0 - 750 m (Ref. 275), usually 60 - 240 m (Ref. 1695)
Climate / Range
Tropical; 20°N - 24°S, 92°E - 180°E (Ref. 1695)
Indo-Pacific: from Andaman Islands to Philippines, Australia and Fiji.
Umbilicus filled in with concretion; flame-striped color pattern extending across nearly entire shell
Occurs on the continental shelf and slope. Prefers hard bottoms particularly coral reefs. Exhibits diel vertical migration. Broken shell washed up on beach (Ref. 88739). Members of the class Cephalopoda are gonochoric. Male and female adults usually die shortly after spawning and brooding, respectively. Mating behavior: Males perform various displays to attract potential females for copulation. During copulation, male grasp the female and inserts the hectocotylus into the female's mantle cavity where fertilization usually occurs. Life cycle: Embryos hatch into planktonic stage and live for some time before they grow larger and take up a benthic existence as adults (Ref. 833).
IUCN Red List Status (Ref. 114614)
CITES status (Ref. 94142)
Threat to humans
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Estimation of some characteristics with mathematical models
Low vulnerability (12 of 100)