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Mastigoteuthis danae (Joubin, 1933)

Michael Vecchione and Richard E. Young
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Containing group: Mastigoteuthidae

Introduction

Joubin (1933) collected 18 young squid of this species but based his description on three specimens, 61 (arm tip to tail), 45 and 17 mm (tentacle tip to tail). All specimens, in spite of the rather large size, these are paralarvae that lack most subadult characteristics.

Brief diagnosis:

A mastigoteuthid ...

Characteristics

  1. Arms
    1. Arm suckers without teeth.
    2. Click on an image to view larger version & data in a new window
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      Figure. Oral-oblique view of arm IV sucker of M. danae, specimen 1. Drawing from Joubin (1933).

  2. Tentacles
    1. Stalk about 2 mm in length and slender.
    2. Club enlarged in diameter, ca. 7 mm long.
    3. Club tip slender, ca. 3 mm long, with sucker buds.
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      Click on an image to view larger version & data in a new window

      Figure. Lateral view of the club of specimen 2 of M. danae, 45 mm total length, ca. 20 mm ML (without tail). 16°N, 62°W. Drawing from Joubin (1933).

  3. Head
    1. Funnel pocket unknown.

  4. Funnel locking-apparatus
    1. Funnel locking-apparatus with a very large tragus and a distinct antitragus.
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      Figure. Funnel/mantle locking-apparatus of M. danae. Left - Ventral view of funnel component. Right - Dorsal view of mantle component. Drawings from Joubin (1933).

  5. Mantle and Skin
    1. Mantle and other skin, except fins, covered with small, cartilagenous tubercules.
    2. Tubercules absent from a 17 mm total length specimen.
    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. Left - Side view of the head of M. danae, ca 45 mm ML. Right - Shape of tubercules. A - External view. B - Side view. Drawings from Joubin (1933).

  6. Fins
    1. Fins longer than broad.
    2. Long tail present in small paralarvae but nearly absent in large paralarvae.
    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. Fins and tail of M. danae, specimen 2 (ca. 20 mm ML, without tail). Drawing from Joubin (1933).

  7. Photophores
    1. Photophores absent.

  8. Pigmentation
    1. Few chromatophores present.

  9. Measurements
    Total length 61 mm to tip of arm IV 45 mm to tip of tentacle
    Mantle length (without fins) 25 mm  
    Mantle length (with fins)* 46 mm  
    Head width 17 mm  
    Head length 7 mm  
    Fin length 25 mm 11 mm*
    Fin width 17 mm 7 mm
    Arm I, length 3 mm  
    Arm II, length 5 mm  
    Arm III, length 4 mm  
    Arm IV, length 14 mm  
    Tail < 1 mm* 9 mm
    Tentacle length -- 45 mm
*Estimated from drawing.

Comments

This description is taken from Joubin (1933). M. danae is known only from paralarvae and may represent the young stage of a known species. perhaps M. atlantica.

Distribution

Type locality: North Atlantic; 34°40'N, 33°16'W, SE of the Azores; 16°03'N, 62°29'W near the Antilles; 30°51'N, 21°00'W east of the Canary Islands.

Salcedo-Vargas (1997) described four specimens (15-30 mm ML) from off Somalia, western Indian Ocean.

References

Joubin, L. 1933. Notes préliminaires sur les Céphalopodes des croisières du Dana (1921-1922). 4e Partie. Annales de l'Institut Océanographique, new series, 13: 1-49.

Salcedo-Vargas, M. A. 1997. Cephalopods from the Netherlands Indian Ocean Programme (NIOP) - II. Mastigoteuthid lineage and related forms. Beaufortia, 47: 91-108.

Title Illustrations
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Scientific Name Mastigoteuthis danae
Location 34°40'N, 33°16'W
Reference Joubin, L. 1933. Notes préliminaires sur les Céphalopodes des croisières du Dana (1921-1922). 4e Partie. Annales de l'Institut Océanographique, new series, 13: 1-49.
View Ventral and dorsal.
Type Type series.
About This Page


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


University of Hawaii, Honolulu, HI, USA

Page: Tree of Life Mastigoteuthis danae (Joubin, 1933). Authored by Michael Vecchione and Richard E. Young. 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:

Vecchione, Michael and Richard E. Young. 2007. Mastigoteuthis danae (Joubin, 1933). Version 19 November 2007 (under construction). http://tolweb.org/Mastigoteuthis_danae/19511/2007.11.19 in The Tree of Life Web Project, http://tolweb.org/

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