Cirrothauma magna

Cirrothauma magna is a species of deep-sea cirrate octopus that has been found in the Indian, Atlantic, and Pacific oceans. It is known from only 4 specimens.[2] Their shells are somewhat saddle-shaped. C. magna is the sister taxon of Cirrothauma murrayi, but can be readily distinguished by having large and well developed eyes (whereas C. murrayi is near blind).[3]

Cirrothauma magna
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Octopoda
Family: Cirroteuthidae
Genus: Cirrothauma
Species:
C. magna
Binomial name
Cirrothauma magna
(Hoyle, 1885)
Synonyms
  • Cirroteuthis magna Hoyle, 1885

Cirrothauma magna is likely the largest species of cirrate octopus, one female specimen measuring 1.7 m total length.[4]

References
  1. Lyons, G.; Allcock, L. (2014). "Cirrothauma magna". IUCN Red List of Threatened Species. 2014: e.T162939A955442. doi:10.2305/IUCN.UK.2014-3.RLTS.T162939A955442.en. Retrieved 19 November 2021.
  2. Vecchione, Michael; Young, Richard. "Cirrothuama magna". Tree of Life Web Project. Retrieved 12 March 2018.
  3. Vecchione, Michael; Young, Richard. "Cirrothauma". Tree of Life Web Project. Retrieved 12 March 2018.
  4. Collins, Martin A.; O'Dea, Mary; Henriques, Camila (April 2001). "A large Cirroteuthis magna (Cephalopoda: Cirroctopoda) caught on the Cape Verde Terrace (North Atlantic)". Journal of the Marine Biological Association of the United Kingdom. 81 (2): 357–358. doi:10.1017/S0025315401003915. ISSN 1469-7769. S2CID 87386612.


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