Pacific Argonaut
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| iPacific Argonaut | ||||||||||||||
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 Argonauta pacifica eggcase, Baja California.
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| Argonauta pacifica Dall, 1871 |
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The Pacific Argonaut (Argonauta pacifica) 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 200 mm in exceptional specimens; the world record size is 220.0 mm.[1]
A. pacifica seems to have a relatively limited distribution, being confined to the waters surrounding western Mexico, and in particular the Gulf of California. For this reason, it is considered one of the rarest of the Argonauta species, along with A. cornuta and A. nouryi.
The taxonomic status of this species questionable. Further research is needed to determine whether it is a valid species or a synonym of another taxon.
[edit] References
- ^ Pisor, D. L. (2005). Registry of World Record Size Shells, 4th edition, Snail's Pace Productions and ConchBooks, p. 12.
- Sweeney, M. J. (2002). Taxa Associated with the Family Argonautidae Tryon, 1879. Tree of Life web project.
[edit] External link
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