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Galiteuthis pacifica Robson 1948

Richard E. Young and Katharina M. Mangold (1922-2003)
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Containing group: Galiteuthis

Characteristics

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Figure. Mantle cartilage at funnel-mantle fusion of G. pacifica showing absence of tubercules, 65 mm GL. Drawing from Young (1972).

  1. Head
    1. Beaks: Descriptions can be found here: Lower beak; upper beak.

  2. Photophores
    1. Lateral (near lens) ocular photophore circular.
  3. Tubercules at fused locking apparatuses
    1. At mantle-funnel fusion (drawing at right): none.
    2. At mantle-nuchal fusion: none.

Comments

More details of the description of G. pacifica can be found here.

Life History

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Figure. Dorsal and ventral views of a paralarva of G. pacifica from Hawaiian waters, 4.8 mm GL. Note characteristic elongate mantle chromatophores.

Distribution

Vertical distribution

A study of the vertical distribution in Hawaiian waters (chart below) found most captures of squid greater than 20 mm GL in size came from depths of 700 m or more. This species does not appear to undergo diel vertical migration.

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Figure. Vertical distribution chart of G. pacifica, modified from Young, 1978. Captures were made with both open and opening/closing trawls. Bars - Fishing depth-range of opening/closing trawl. Circle - Modal fishing depth for either trawl. Blue-filled circles - Night captures. Yellow-filled circles - Day captures.

Geographical distribution

Type locality - off Cocos Island, eastern tropical Pacific. Distributed throughout the tropical Indo-Pacific (Nesis, 1982).

References

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.

Young, R. E. 1972. The systematics and areal distribution of pelagic cephalopods from the seas off Southern California. Smithson. Contr. Zool., 97: 1-159.

Young, R. E. 1978. Vertical distribution and photosensitive vesicles of pelagic cephalopods from Hawaiian waters. Fish. Bull., 76: 583-615.

Title Illustrations
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Scientific Name Galiteuthis pacifica
Location off California
Reference from Young, R. E. 1972. The systematics and areal distribution of pelagic cephalopods from the seas off Southern California. Smithson. Contr. Zool., 97: 1-159.
Size 42 mm GL
Image Use creative commons This media file is licensed under the Creative Commons Attribution-NonCommercial License - Version 3.0.
Copyright © 1972 Richard E. Young
About This Page

Richard E. Young
University of Hawaii, Honolulu, HI, USA

Katharina M. Mangold (1922-2003)
Laboratoire Arago, Banyuls-Sur-Mer, France

Page: Tree of Life Galiteuthis pacifica Robson 1948. Authored by Richard E. Young and Katharina M. Mangold (1922-2003). The TEXT of this page is licensed under the Creative Commons Attribution-NonCommercial License - Version 3.0. Note that images and other media featured on this page are each governed by their own license, and they may or may not be available for reuse. Click on an image or a media link to access the media data window, which provides the relevant licensing information. For the general terms and conditions of ToL material reuse and redistribution, please see the Tree of Life Copyright Policies.

Citing this page:

Young, Richard E. and Katharina M. Mangold (1922-2003). 2009. Galiteuthis pacifica Robson 1948. Version 22 August 2009 (under construction). http://tolweb.org/Galiteuthis_pacifica/19573/2009.08.22 in The Tree of Life Web Project, http://tolweb.org/

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