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Berryteuthis Naef, 1921

Tsunemi Kubodera, F. G. Hochberg, Richard E. Young, and Michael Vecchione
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The genus consists of two species, one of which (B. magister) is believed to consist of three subspecies.
taxon links [up-->]Berryteuthis magister [up-->]Berryteuthis anonychus [down<--]Gonatidae Interpreting the tree
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Containing group: Gonatidae

Introduction

Berryteuthis contains two species of very different sizes. B. magister which reaches a length of nearly 40 cm ML while most adult B. anonychus are near 10 cm ML.

Brief diagnosis:

A gonatid ...

Characteristics

  1. Arms
    1. Armature of the arms differs greatly between species.

  2. Tentacles
    1. Tentacles present.
    2. Tentacular clubs without hooks.
    3. Suckers of tentacular club in numerous irregular series; suckers about equal in size.
    4. Proximal locking-apparatus of club a series of knobs and suckers along dorsal margin of manus.
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      Figure. Oral view of tentacular club of B. anonychus. Red dots along the dorsal margin of the manus and stalk are knobs of the proximal locking-apparatus. Drawing modified from Pearcy and Voss (1963).

  3. Head
    1. Radula with teeth in 7 series.
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      Click on an image to view larger version & data in a new window

      Figure. View of the radula of B. anonychus. Drawing modified from Pearcy and Voss (1963).

  4. Mantle
    1. Mantle tissue muscular.

  5. Fins
    1. Fins rhomboid in shape; not drawn out into a tail.

  6. Photophores
    1. Photophores absent.

Comments

The following table compares characteristics of subadult species of Berryteuthis.

Species / Character  Maximum size  Arm hooks 
B. anonychus   70 - 150 mm ML
Females only, few, small, at arm bases 
B. magister   180 - 380 mm ML
Both sexes, many, large, along arms 

References

Pearcy, W. G. and G. L. Voss. 1963. A new species of gonatid squid from the Northeastern Pacific. Proc. Biol. Soc. Wash., 76: 105-112.

Title Illustrations
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Scientific Name Berryteuthis anonychus
Location Northeast Pacific at 45.4N, 126.7W; 1453 m depth
Comments Image courtesy of the Monterey Bay Aquarium Research Institute (MBARI). You must obtain permission from MBARI to use this photo; please contact pressroom@mbari.org for further information
Acknowledgements Susan Von Thun, photo editing, MBARI
Specimen Condition Live Specimen
Identified By Stephanie Bush
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Copyright © 2011 MBARI
About This Page


National Science Museum, Tokyo, Japan

F. G. Hochberg
Santa Barbara Museum of Natural History, Santa Barbara, California, USA


University of Hawaii, Honolulu, HI, USA


National Museum of Natural History, Washington, D. C. , USA

Page: Tree of Life Berryteuthis Naef, 1921. Authored by Tsunemi Kubodera, F. G. Hochberg, Richard E. Young, and Michael Vecchione. 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:

Kubodera, Tsunemi, F. G. Hochberg, Richard E. Young, and Michael Vecchione. 2006. Berryteuthis Naef, 1921. Version 30 May 2006. http://tolweb.org/Berryteuthis/19765/2006.05.30 in The Tree of Life Web Project, http://tolweb.org/

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