Greater Argonaut

Argonauta argo

Greater Argonaut

The female greater argonaut secretes a thin papery shell, not a true cephalopod shell but a brood case she builds with her arms and uses to trap a bubble of air for buoyancy. She can reach a span of around seventy centimetres while the dwarf male stays under two, one of the most lopsided size gaps in the animal world.

Taxonomy: Animalia › Mollusca › Cephalopoda › Octopoda › Argonautidae › Argonauta

Species data via the World Register of Marine Species (WoRMS), AphiaID 138803.

FAQ

How deep does the Greater Argonaut live?
The Greater Argonaut (Argonauta argo) is typically found at 0–200 m.