Magnoteuthis magnaMichael Vecchione and Richard E. Young
Mg. magna appears to be one of the more common mastigoteuthids in the temperate to tropical Atlantic. The description of the holotype by Joubin (1920) can be seen here.
A Magnoteuthis ...
- without photophores.
- with smooth-ringed arm suckers.
- Arm suckers with smooth inner rings.
- Largest suckers of arms IV larger than those of other arms.
- Mantle component of funnel locking-apparatus with straight, anterior groove and broad, posterior cup
- Photophores and pigmentation
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- Skin, except oral surfaces, covered with dense packing of chromatophores containing a deep, brilliant red pigment.
- Photophores absent.
- No trace of ringed chromatophores or white spheres.
Figure. Left - Frontal view of the chromatophores of Mg. magna, off New England, fresh, showing numerous chromatophores. Region of squid unknown. Photograph by M. Vecchione. Right - Ventrolateral view of a damaged portion of the ventral head of Mg. magna, 40°N,67°W, 160 mm ML, showing dense packing of chromatophores and the subchromatophore layer (damaged region) but without any indication of photophores. Photograph by R. Young.
Type locality: Sargasso Sea of the North Atlantic at 31°45'N, 42°39'W. Apparently Mg. magna occurs throughout the tropical and warm temperate Atlantic, At least from 50°N, 27°W (MARECO record) to 40°S, 26°W (FFS WALTHER HERWIG record). Reported from the Indian Ocean (Nesis, 1982/87) but this could be a species of Magnoteuthis that was not recognized at the time of this publication.
Joubin, L. 1920. Céphalopodes provenant des Campagnes de la Princesse Alice (1898-1910). 3e Serie. Monaco.
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- First online 18 July 2004
- Content changed 15 August 2010
Citing this page:
Vecchione, Michael and Richard E. Young. 2014. Magnoteuthis magna http://tolweb.org/Magnoteuthis_magna/19520/2014.12.06 in The Tree of Life Web Project, http://tolweb.org/. Version 06 December 2014 (under construction).