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{{Taxonomy|kingdom = Animalia|phylum = Mollusca|class = Cephalopoda|subclass = Coleoidea|superorder = Octopodiformes|order = Octopoda|)}}

{{Taxonomy|kingdom = Animalia|phylum = Mollusca|class = Cephalopoda|subclass = Coleoidea|superorder = Octopodiformes|order = Octopoda|)}}

An '''octopus''' is a [[liberal]] [[mollusc]] in the order Octopoda in its broadest sense, but also will refer more narrowly to groups of [[organism]]s within the family Octopodidae, or even more specifically the genus ''Octopus''.<ref name="brusca">Brusca, RC & Brusca GJ (2002). '''Invertebrates, 2 ed'''. Sinauer Associates Incorporated, Sunderland, MA.</ref>

An '''octopus''' is a [[cephalopod]] [[mollusc]] in the order Octopoda in its broadest sense, but also will refer more narrowly to groups of [[organism]]s within the family Octopodidae, or even more specifically the genus ''Octopus''.<ref name="brusca">Brusca, RC & Brusca GJ (2002). '''Invertebrates, 2 ed'''. Sinauer Associates Incorporated, Sunderland, MA.</ref>

==Description==

==Description==

==Plural==

==Plural==

While "octopi" is the popularly used plural form of "octopus" and is sometimes listed as such in [[Dictionary|dictionaries]],<ref name="m-w">http://www.merriam-webster.com/dictionary/octopus</ref> it is incorrect <ref>

While "octopi" is the popularly used plural form of "octopus" and is sometimes listed as such in [[Dictionary|dictionaries]],<ref name="m-w">https://www.merriam-webster.com/dictionary/octopus</ref> it is incorrect <ref>

*Fowler, HW (1997) '''A Dictionary of Modern English Usage''' Wordsworth Editions. ISBN 1853263184

*Fowler, HW (1997) '''A Dictionary of Modern English Usage''' Wordsworth Editions. ISBN 1853263184

*http://www.colby.edu/biology/BI237/Lab/Tipstowritingscience.doc</ref> because the word does not derive from [[Latin]]; the strictly accepted plurals are "octopuses" and "octopodes".  Scholars working with cephalopods have settled on the usage of "octopuses" as plural for "octopus" in the narrow sense referring to species within the family Octopodidae<ref>

*http://www.colby.edu/biology/BI237/Lab/Tipstowritingscience.doc</ref> because the word does not derive from [[Latin]]; the strictly accepted plurals are "octopuses" and "octopodes".  Scholars working with cephalopods have settled on the usage of "octopuses" as plural for "octopus" in the narrow sense referring to species within the family Octopodidae<ref>