单词	argonaut
释义	argonaut /ˈɑːɡ(ə)nɔːt / noun A small floating octopus, the female of which has webbed sail-like arms and secretes a thin coiled papery shell in which the eggs are laid. Also called paper nautilus. Genus Argonauta, order Octopoda. The coleoids include modern squids, cuttlefish, octopuses, and the argonauts or paper-nautilus, together with extinct groups such as the belemnites.... These ammoniac egg cases/brood chambers closely resemble the female Argonauta shell, produced for this purpose by the adult argonaut. One of the most astounding cephalopods is the paper nautilus also known as argonaut.
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