go to the Tree of Life home page
Under Construction
This is an archived version of a Tree of Life page. For up-to-date information, please refer to the current version of this page.

Onykia lonnbergii (Ishikawa and Wakiya, 1914)

Michael Vecchione, Richard E. Young, and Kotaro Tsuchiya
Containing group: Onykia


O. lonnbergii is one of two species of Onykia known to occur in the high North Pacific (the other is O. robusta). O. lonnbergii is the smaller of the two species reaching a length of 307 mm ML (Tsuchiya and Okutani, 1991).


An Onykia ...


  1. Tentacles
    1. Club with 25 hooks
     image info

    Figure. Oral view of tentacular club of O. lonnbergii, 215 mm ML, Suruga Bay, Japan. Drawing from Kubodera et al., 1998.

  2. Mantle
    1. Dermis of mantle with short longitudinal ridges and warts.

  3. Fins
    1. Fins with rhomboidal shape but drawn out somewhat into short tail.
    2. Width 50-55% of ML.
  4. Gladius
    1. Gladius with long rostrum; triangular in cross-section.


The above description is taken from Kubodera et al. (1998). This species is very similar to O. robsoni. They differ in the cross-sectional shape of the rostrum (triangular vs oval) and the the form of the dermal skin pads (short, narrow, fusing with one another vs long and wide) (Nesis, 1982/87). Sasaki (1929) describes the warts as follows: "Warts on mantle wrinkle-like, running lengthwise, anastomosing one another by oblique branches. They measure 0.3-0.8 mm in breadth, distant from one another as far as their own breadth."

Additional features of the description are found here.

Life History

An apparently mature male with penis protruding from the funnel was reported in a 307 mm ML squid (Tsuchiya and Okutani, 1991).


Type locality is the beach of Sagami Bay, Japan. The squid was assumed to have been discarded by fishermen (Kubodera, et al., 1998). O. lonnbergii is found in the western North Pacific and the Indian Ocean (Saya-de-Malha Bank) (Kubodera, et al., 1998).


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.

Kubodera, T., U. Piatkowski, T. Okutani and M.R. Clarke. 1998. Taxonomy and Zoogeography of the Family Onychoteuthidae (Cephalopoda: Oegopsida). Smithsonian Contributions to Zoology, No. 586: 277-291.

Sasaki, M. 1929. A monograph of the dibranchiate cephalopods of the Japanese and adjacent waters. Journal of the College of Agriculture, Hokkaido Imperial University, 20(Supplementary number):1-357.

Tsuchiya, K., and T. Okutani. 1991. Growth Stages of Moroteuthis robusta (Verrill, 1881) with the Re-evaluation of the Genus. Bulletin of Marine Science, 49(1/2):137-147.

Title Illustrations
Scientific Name Onykia lonnbergii
Location Suruga Bay, Japan
Reference Kubodera, T., U. Piatkowski, T. Okutani and M.R. Clarke. 1998. Taxonomy and Zoogeography of the Family Onychoteuthidae (Cephalopoda: Oegopsida). Smithsonian Contributions to Zoology, No. 586: 277-291.
View Ventral
Size 215 mm ML
About This Page

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

Richard E. Young

Dept of Oceanography
University of Hawaii
Honolulu, Hawaii 96822

Tokyo University of Fisheries, Konan, Minato, Tokyo

Citing this page:

Vecchione, Michael, Young, Richard E., and Tsuchiya, Kotaro. 2003. Onykia lonnbergii (Ishikawa and Wakiya, 1914). Version 23 June 2003 (under construction). http://tolweb.org/Onykia_lonnbergii/19974/2003.06.23 in The Tree of Life Web Project, http://tolweb.org/

close box

This page is a Tree of Life Leaf Page.

Each ToL leaf page provides a synopsis of the characteristics of a group of organisms representing a leaf at the tip of the Tree of Life. The major distinction between a leaf and a branch of the Tree of Life is that a leaf cannot generally be further subdivided into subgroups representing distinct genetic lineages.

For a more detailed explanation of the different ToL page types, have a look at the Structure of the Tree of Life page.

close box

Onykia lonnbergii

Page Content




Explore Other Groups

random page