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Alluroteuthis Odhner, 1923

Alluroteuthis antarcticus Odhner, 1923

Richard E. Young, Michael Vecchione, and Uwe Piatkowski
Alluroteuthis contains a single species.
Containing group: Neoteuthidae


This species is known only from Antarctic waters. It reaches size of 27 cm ML (Nesis, 1982).


A neoteuthid ...


  1. Arms
    1. In large individuals, suckers in middle of arms I-III with blunt hooks.

  2. Tentacles
    1. Distal manus with suckers greatly enlarged in medial two series.
    2. Large distal-manal suckers with ca. 60 pointed teeth on inner rings.
    3. Length of proximal manus about equal to length of distal manus.
    4. Club proximal locking-apparatus along dorsal margin of proximal manus and oral midline of tentacle stalk.
     image info

    Figure. Oral view of tentacular club of A. antarcticus. Drawing from Roper, et al., 1969.

     image info

    Figure. Oral view of tentacular club of A. antarcticus, preserved. Photograph by R. Young.

  3. Fins
    1. Length 35-40% of ML.


More details of the description can be found here.

Life History

Unlike larger squids, in juvenile A. antarcticus, the tentacles are very small compared to the arms.

 image info  image info

Figure. Left - Oral view of brachial crown of A. antarcticus, type specimen, 14.5 mm ML. Drawing from Odhner (1923). Right - Side view of A. antarcticus, 18 mm ML, NMNH #727521, Antarctic ocean, preserved. The tentacles are indicated by white arrows in the illustration at right. Photograph by R. Young.

The structure of the tentacle of the juvenile (right), however, looks similiar to that of the subadult.
 image info

Figure. Oral view of tentacle of a juvenile of A. antarcticus, type specimen, 14.5 mm ML. Drawing from Odhner (1923).

Odhner (1923) suggested that Parateuthis tunicata Thiele, 1920, described from a paralarva taken in Antarctic waters, might be the young of his Alluroteuthis antarcticus based on similarities of the radula. Roper, et al. (1969) indicated that new specimens in their possession suggested that Odhner was correct. However, their study was never completed and the synonomy of the two species remains uncertain. If the synonomy is proven correct, Parateuthis tunicata, the older species, will be the proper name.

 image info

Figure. Dorsal, ventral and lateral views of Parateuthis tunicata, 8 mm ML. Drawings from Thiele (1920).


The type locality is: 63°-64°S, 45°-51°W in Antarctic waters, 0-2800 m depth.

A distribution map of this species is maintained by the British Antarctic Survey.


Nesis, K. N. 1982/87. Abridged key to the cephalopod mollusks of the world's ocean. 385+ii pp. Light and Food Industry Publishing House, Moscow. (In Russian.). Translated into English by B. S. Levitov, ed. by L. A. Burgess (1987), Cephalopods of the world. T. F. H. Publications, Neptune City, NJ, 351pp.

Odhner, N.H. 1923. Die Cephalopoden. Zoological Results of the Swedish Antarctic Expedition 1901-03, 1(4):1-7.

Roper, C. F. E., R. E. Young and G. L. Voss (1969). An illustrated key to the families of the order Teuthoidea. Smiths. contr. zool., 13:1-32.

Thiele, J. 1921. Die Cephalopoden der deutschen Südpolar-Expedition 1901-1903. Deutsche Südpolar-Expedition 1901-1903, 16(Zoology 8):433-465. [Published 1920]

Title Illustrations
Scientific Name Alluroteuthis antarcticus
Comments Upper illustration: Antarctic Peninsula region, photograph by U. Piatkowski.

Lower illustration: Drawing from Roper et al. (1969)

Scientific Name Alluroteuthis antarcticus
Location Antarctic waters
Reference )Odhner, N.H. 1923. Die Cephalopoden. Zoological Results of the Swedish Antarctic Expedition 1901-03, 1(4):1-7.
View Dorsal, lateral, ventral
Size 14.5 mm ML
About This Page

Richard E. Young

Dept of Oceanography
University of Hawaii
Honolulu, Hawaii 96822

National Marine Fisheries Service
Systematics Laboratory
National Museum of Natural History
Washington, D. C. 20560

Uwe Piatkowski

Institut f?r Meereskunde, D?sternbrooker Weg 20, D-24105 Kiel, Germany

Citing this page:

Young, Richard E., Vecchione, Michael, and Piatkowski, Uwe. 1999. Alluroteuthis Odhner, 1923. Alluroteuthis antarcticus Odhner, 1923. Version 01 January 1999 (under construction). http://tolweb.org/Alluroteuthis_antarcticus/19925/1999.01.01 in The Tree of Life Web Project, http://tolweb.org/

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