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Heteroteuthis hawaiiensis Berry 1909

Richard E. Young, Michael Vecchione, and Clyde F. E. Roper
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Containing group: Heteroteuthis

Introduction

We present here a description of H. hawaiiensis, but we know of no features that separate it from H. dispar. The two species, which are found in separate oceans, have not been compared side by side, and, therefore, have not been synonymized. Hopefully, DNA data will tell us before long if careful morphological comparisons are needed. H. dispar has priority but our access to specimens in excellent condition and illustrations of H. hawaiiensis is responsible for presenting a more complete description of this species.

Characteristics

  1. Arms
    1. Web between arms IV absent.
    2. Male
      1. Each arm III with two or three greatly enlarged suckers.
      2. Enlarged arm III suckers with at least one in dorsal series and one in ventral series.
      3. Right arms I and II hectocotylized; arm II with numerous glandular structures; large gland between arms I and II mostly proximal to sucker bearing regions.
      4. Tips of arms IV with 3-4 irregular series of suckers. This feature was missed by the artist in the drawing below.
      5. Click on an image to view larger version & data in a new window
        Click on an image to view larger version & data in a new window

        Figure. Oral view of the brachial crown of H. hawaiiensis. Drawing by A. Hart.

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        Figure. Oral view of various arms of H. hawaiiensis, male. Top - Brachial crown. Bottom left - Hectocotylized right arms I and II showing glandular regions on arms II, same animal as above. Tissue stained with methylene blue stain. . Bottom right - Tip of arm IV, male, 21 mm ML, showing multiple sucker series. Photographs by R. Young.

    3. Female
      1. Arms I and II with bare tips.
      2. Tips of arms IV with 3-4 irregular series of suckers.
      3. Click on an image to view larger version & data in a new window
        Click on an image to view larger version & data in a new window

        Figure. Oral view of various arms of H. hawaiiensis, female. Top - Arms I-III. Drawing by A. Hart. Bottom - Brachial crown with arms I in the center. Photograph by R. Young.

      4. Arm bases in females with papillate tissue.
      5. Click on an image to view larger version & data in a new window
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        Figure. Anteroventral view of the oral surfaces of the arm bases of H. hawaiiensis showing papillate surfaces that extend onto the base of the buccal crown. Arms stained with methylene blue stain. Photograph by R. Young.

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

Comments

More details of the description of H. hawaiiensis can be found here.

Comparisons of the H. hawaiiensis with other species of Heteroteuthis can be found on the Heteroteuthis Page.

Title Illustrations
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Scientific Name Heteroteuthis hawaiiensis
Specimen Condition Live Specimen
View Dorsal-oblique
Image Use creative commons This media file is licensed under the Creative Commons Attribution-NonCommercial License - Version 3.0.
Copyright ©
Scientific Name Heteroteuthis hawaiiensis
Location Hawaiian waters
Creator Allan Hart
Sex Male
Life Cycle Stage Mature
View Side
Copyright ©
About This Page


University of Hawaii, Honolulu, HI, USA


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


Smithsonian Institution, Washington, D. C., USA

Page: Tree of Life Heteroteuthis hawaiiensis Berry 1909. Authored by Richard E. Young, Michael Vecchione, and Clyde F. E. Roper. 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., Michael Vecchione, and Clyde F. E. Roper. 2007. Heteroteuthis hawaiiensis Berry 1909. Version 26 December 2007 (under construction). http://tolweb.org/Heteroteuthis_hawaiiensis/20055/2007.12.26 in The Tree of Life Web Project, http://tolweb.org/

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