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Galiteuthis phyllura Berry 1911

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

Introduction

This may be the largest species of Galiteuthis if it reaches a length of 2.7 m ML as Nesis (1982) thinks. G. phyllura has been observed repeatedly by underwater vehicles. Hunt (1996) describes a behavior observed by an ROV that may be typical of many cranchiids. When disturbed, this squid hyperinflates the mantle with water and releases ink inside the mantle cavity. It thereby transforms itself from a nearly transparent squid into a very dark one.

Characteristics

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Figure. Ventral view of cartilage with tubercules at funnel-mantle fusion, G. phyllura, 173 mm GL. Drawing from Young (1972).

  1. Photophores
    1. Lateral (near lens) ocular photophore bar-shaped.
  2. Tubercules at fused locking apparatuses
    1. At mantle-funnel fusion: 2-4 small, conical tubercules.
    2. At mantle-nuchal fusion: none.

Comments

Additional details of the description of G. phyllura can be found here.

Nomenclature

Galiteuthis beringiana (Sasaki, 1920) is a junior synonym of this species (Nesis, 1982).

Life History

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Figure. Top - Growth stages of G. phyllura, ventral views. A - 170 mm GL. B - 33 mm GL. C - 79 mm GL. D - 13 mm GL. Note characteristic elongate chromatophores at anterior end of mantle. Drawings of life history stages from Young, 1972. Bottom - Side-oblique view of a young G. phyllura about the size of fig. B to the left. Photograph by Danté Fenolio.

Distribution

Geographical distribution

The type locality is Monterey Bay, California (temperate eastern North Pacific). Its distribution extends from off Baja California to the Bering Sea to off northern Japan (Nesis, 1982).

References

Hunt, J. C. 1996. The behavior and ecology of midwater cephalopods from Monterey Bay: Submersible and laboratory observations. Ph. D. Dissertation, Univ. Calif. Los Angeles. 231 pp.

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

Title Illustrations
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Scientific Name Galiteuthis phyllura
Location off Southern California
Reference 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 170 mm GL
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 phyllura Berry 1911. 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 Mangold (1922-2003), Katharina M. 2008. Galiteuthis phyllura Berry 1911. Version 07 January 2008 (under construction). http://tolweb.org/Galiteuthis_phyllura/19574/2008.01.07 in The Tree of Life Web Project, http://tolweb.org/

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