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knobby argonaut

Argonauta nodosus

Classification

Argonauta nodosus [previously known as Argonauta nodosa], also known as the knobby or knobbed argonaut, is a species of pelagic octopus. The female of the species, like all argonauts, creates a paper-thin eggcase that coils around the octopus much like the way a nautilus lives in its shell (hence the name paper nautilus). The shell is usually approximately 150 mm in length, although it can exceed 250 mm in exceptional specimens; the world record size is 292.

Distribution

(c) Lisa Bennett, some rights reserved (CC BY) · CC-BY
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Countries in the Picchu catalog
Argentina · 4Uruguay · 4Brazil · 3