Octopoda
Octopoda is one of the largest orders which contain the common octopus and some other types.[1][2] Fossila are rare, but they do have a fossil record starting in the later Carboniferous.
| Octopoda Temporal range: 323 mya Upper Carboniferous – present
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| The common octopus, Octopus vulgaris. | |
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| Order: | Octopoda
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Octopods are put into two suborders. One, the Incirrina, is composed of the well-known Octopus of rocky shores and coral reefs and its relatives. The other suborder, the Cirrina, contains octopods whose tentacles are linked by an umbrella-like mantle, so their activity is rather different from the common octopus.
Octopoda Media
A giant Pacific octopus at Echizen Matsushima Aquarium, Japan
Diagram of octopus from side, with gills, funnel, eye, ocellus (eyespot), web, arms, suckers, hectocotylus and ligula labelled.
A finned Grimpoteuthis species with its atypical octopus body plan
Octopus with open siphon. The siphon is used for respiration, waste disposal and discharging ink.
A common octopus (Octopus vulgaris) moving around. Its nervous system allows the arms to move with some autonomy.
Eye of common octopus. U. S. Virgin Islands, Coki Beach, St. Thomas. 2004.
Adult male Tremoctopus violaceus with hectocotylus
Female giant Pacific octopus guarding strings of eggs
Octopus paralarva, a planktonic hatchling
Octopus cyanea in Kona, Hawaii
Video of Octopus cyanea moving and changing its colour, shape and texture
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References
- ↑ William Elford Leach, 1818. "ITIS Report: Octopoda Leach, 1818". Itis.gov. 2013-04-10. Retrieved 2014-02-04.
- ↑ Helsinki.fi, Mikko's Phylogeny Archive: Coleoidea – Recent cephalopods