Under Construction

Onychoteuthis lacrima Bolstad & Seki in Bolstad, 2008

K.S.R. Bolstad
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Containing group: Onychoteuthis

Introduction

This species is one of several in the Onychoteuthis banksii complex from Hawaiian waters.  Seki (unpublished) recognized species D as distinct from the others based on the oval-shaped posterior intestinal photophore; all other forms in the Onychoteuthis banksii complex have circular intestinal photophores. 

Diagnosis

An Onychoteuthis species...

Characteristics

  1. Photophores
    1. Posterior intestinal photophore circular, well defined; anterior photophore oval to tear-drop-shaped, ill defined, minute to indiscernible. 
    2. Ocular photophore a long whitish patch on ventral surface of each eyeball.

  2. Measurements of holotype
    1. Mantle length - 94 mm
    2. Arm lengths - 33-45 mm
    3. Fin length - 55 mm
    4. Fin width - 63 mm
    5. Club length - 30 mm (right)
    6. Club hook numbers - 22
    7. Largest hooks - Hooks V6-V8

  3. Tentacle club
    1. Length ~29% ML, with 20–24 long, robust, strongly recurved hooks.
    2. Bases of hooks V7 or V8 through distal-most produced into pronounced ventral spike.

    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

    Onychoteuthis lacrima. ©

References

Bolstad, K.S. 2008. Two new species and a review of the squid genus Onychoteuthis Lichtenstein, 1818 (Oegopsida: Onychoteuthidae) from the Pacific Ocean. Bulletin of Marine Science, 83: 481529.

Seki, M.P. 2001. Distribution patterns of pelagic cephalopods through the Subarctic and Subtropical Frontal Zones in the central North Pacific. Thesis (MSc), University of Hawaii, Honolulu, Hawaii: 102 pp.

Title Illustrations
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Scientific Name Onychoteuthis lacrima
Specimen Condition Dead Specimen
Copyright ©
About This Page


EOS Research Institute, Auckland University of Technology, New Zealand

Correspondence regarding this page should be directed to K.S.R. Bolstad at

Page: Tree of Life Onychoteuthis lacrima Bolstad & Seki in Bolstad, 2008. Authored by K.S.R. Bolstad. The TEXT of this page is licensed under the Creative Commons Attribution 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:

Bolstad, K.S.R. 2010. Onychoteuthis lacrima Bolstad & Seki in Bolstad, 2008. Version 23 December 2010 (under construction). http://tolweb.org/Onychoteuthis_lacrima/108202/2010.12.23 in The Tree of Life Web Project, http://tolweb.org/

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