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Abralia similis Okutani_and_Tsuchiya 1987

Kotaro Tsuchiya
Containing group: Abralia


A. similis is a small-sized species, less than 35mm DML, and is widely distributed in the equatorial to subtropical Pacific. It is characterized by a reddish or purplish brown body color, a small number of club hooks (2) and a bilobed hectocotylus flap.


  1. Tentacle clubs
    1. Two hooks on ventral side.
    2. Two rows of large suckers on dorsal side of manus.
     image info
  2. Hectocotylus
    1. Right ventral arm of male hectocotylized.
    2. Hectocotylus with two different sized flaps.
    3. Large proximal flap bilobed.
     image info
  3. Eye Photophores
    1. Five silvery organs.
  4. Integumental Photophores
    1. Ventral mantle and head with scattered arrangement of integumental organs.
  5. Mantle apex ("tail")
    1. short, extends just beyond conus of gladius.


A. similis closely resembles the Atlantic A. redfieldi in the eye photophore, epidermis, club and hectocotylus morphologies.


Geographical distribution

This species was first described from the Northwest Pacific. It is the most widely distributed member of the genus Abralia. It has also been recorded from Papua New Guinea (Rancurel, 1970), south of Tonga (Riddell, 1985) and the tropical West Pacific (Burgess, 1992). In the Northwest Pacific, this species occurs south of Kuroshio Current axis.


Burgess, L. A. 1992.

Hidaka, and Kubodera, T. 2000.

Rancurel, A. 1970.

Riddell, 1985.

Okutani, T. and Tsuchiya, K. 1987.

Title Illustrations

Abralia similis, Northwest Pacific, from Tsuchiya, 2000, size, female.

Other illustrations

Copyright © 2000 K. Tsuchiya
About This Page

Tokyo University of Fisheries, Konan, Minato, Tokyo

Citing this page:

Tsuchiya, Kotaro. 2000. Abralia similis Okutani_and_Tsuchiya 1987. Version 01 January 2000 (under construction). http://tolweb.org/Abralia_similis/19662/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

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Abralia similis

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