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	The '''octopus''' is a ] that inhabits many diverse regions of the ], especially ]. Octopuses are characterized by their eight arms, usually with sucker cups on them. They are highly intelligent, but have a very short life span.

	]

	=== Placement ===
	:Kingdom ]
	:Phylum ]
	:Class ]
	:Order ]
	:Family ]
	:Genus '''''Octopus'''''

	=== Synonyms and common names ===
	Octopus<br>Other members of Octopodidae are also called "octopuses".

	A note on the ]: ] states that "the only acceptable plural in English is ''octopuses''", and that ''octopi'' is misconceived and ''octopodes'' pedantic. ''Octopi'' derives from the mistaken notion that ''octopus'' is Latin. But it isn't; it is Greek, from ''oktopous''. If the word were Latin, it would be ''octoped'' and the plural ''octopedes'', analogous to ''centipedes'' and ''millipedes''.

	That said, Merriam-Webster now accepts ''octopi'' as a plural form.
	The collective form ''octopus'' is also used, but is usually reserved for animals consumed for food.

	=== References ===
	http://www.cephbase.dal.ca/spdb/genusgroup.cfm?Genus=Octopus
	as of 2002-07-09

	=== Children ===
	*Subgenus ''Abdopus''
	**''O. abaculus''
	**''O. aculeatus''
	**''O. capricornicus''
	**''O. tonganus''
	*Subgenus ''Octopus''
	**''O. adamsi''
	**''O. aegina''
	**''O. alatus''
	**''O. alecto''
	**''O. alpheus''
	**''O. araneoides''
	**''O. arborescens''
	**''O. areolatus''
	**''O. aspilosomatis''
	**''O. australis''
	**''O. balboai''
	**''O. berrima''
	**''O. bimaculatus''
	**''O. bimaculoides''
	**''O. bocki''
	**''O. briareus''
	**''O. brocki''
	**''O. bunurong''
	**''O. burryi''
	**''O. californicus''
	**''O. campbelli''
	**''O. carolinensis''
	**''O. chierchiae''
	**''O. conispadiceus''
	**''O. cyanea''
	**''O. defilippi''
	**''O. dierythraeus''
	**''O. digueti''
	**''O. exannulatus''
	**''O. fangsiao etchuanus''
	**''O. fangsiao typicus''
	**''O. favonius''
	**''O. filamentosus''
	**''O. filosus''
	**''O. fitchi''
	**''O. fujitai''
	**''O. gardineri''
	**''O. gibbsi''
	**''O. globosus''
	**''O. graptus''
	**''O. guangdongensis''
	**''O. hardwickei''
	**''O. hattai''
	**''O. hongkongensis''
	**''O. hubbsorum''
	**''O. joubini''
	**''O. kagoshimensis''
	**''O. kaharoa''
	**''O. kaurna''
	**''O. lobensis''
	**''O. longispadiceus''
	**''O. luteus''
	**''O. macropus''
	**''O. maorum''
	**''O. marginatus''
	**''O. maya''
	**''O. membranaceus''
	**''O. mercatoris''
	**''O. mernoo''
	**''O. microphthalmus''
	**''O. micropyrsus''
	**''O. mimus''
	**''O. minor minor''
	**''O. minor pardalis''
	**''O. minor typicus''
	**''O. mototi''
	**''O. mutilans''
	**''O. nanhaiensis''
	**''O. nanus''
	**''O. neglectus''
	**''O. niveus''
	**''O. nocturnus''
	**''O. occidentalis''
	**''O. ochotensis''
	**''O. oculifer''
	**''O. oliveri''
	**''O. ornatus''
	**''O. oshimai''
	**''O. ovulum''
	**''O. pallidus''
	**''O. parvus''
	**''O. penicillifer''
	**''O. pentherinus''
	**''O. polyzenia''
	**''O. prashadi''
	**''O. pricei''
	**''O. pumilus''
	**''O. pyrum''
	**''O. rapanui''
	**''O. rex''
	**''O. robsoni''
	**''O. roosevelti''
	**''O. rubescens''
	**''O. salutii''
	**''O. sanctaehelenae''
	**''O. sasakii''
	**''O. selene''
	**''O. siamensis''
	**''O. spinosus''
	**''O. striolatus''
	**''O. superciliosus''
	**''O. taprobanensis''
	**''O. tehuelchus''
	**''O. tenebricus''
	**''O. tetricus''
	**''O. tsugarensis''
	**''O. validus''
	**''O. varunae''
	**''O. veligero''
	**''O. verrucosus''
	**''O. vitiensis''
	**''O. warringa''
	**''O. winckworthi''
	**''O. wolfi''
	**''O. yendoi''
	**''O. zonatus''

Revision as of 10:04, 10 October 2003