Sthenoteuthis pteropus
Michael Vecchione and Richard E. YoungCharacteristics
- Arms
- Hectocotylus with 22-26 suckers.
- Hectocotylus with 22-26 suckers.
- Tentacles
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Figure. Oral views of the left and right tentacle bases of S. pteropus showing the relationship between the carpal knobs (colored yellow) and the number of more proximal suckers. Note that the proximal carpal locking-sucker is absent from the tentacle on the right. Drawing modified from Pfeffer (1912).
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- Funnel/mantle locking-apparatus
Life History
S. pteropus spawns primarily in specific regions on either side of the tropical Atlantic (Zuev and Nikolsky, 1993). in a detailed studyfrom the tropical Atlantic, found paralarval growth of S. pteropus is comparable to that of O. bartramii (ie, ca 7 mm ML at 30 days????) and proboscis separation in S. pteropus occurred at a ML of 8.5 mm and an age of 33-35 days (Arkhipkin and Mikheev, 1992). In the study by Arkhipkin and Mikheev (1992) on the age of S. pteropus, based on statolith examination, they recognized a "dark zone" in the statolith characterized by the lower transparency of the statolith and the width of the increments. They found that this period ended at about 100-110 days at a ML of about 100 mm which they considered to be the end of the juvenile period for S. pteropus.About This Page
National Museum of Natural History, Washington, D. C. , USA
Richard E. Young
University of Hawaii, Honolulu, HI, USA
Page copyright © 2010 and Richard E. Young
Page: Tree of Life Sthenoteuthis pteropus 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.
- First online 15 August 2010
- Content changed 15 August 2010
Citing this page:
Vecchione, Michael and Richard E. Young. 2010. Sthenoteuthis pteropus http://tolweb.org/Sthenoteuthis_pteropus/77448/2010.08.15 in The Tree of Life Web Project, http://tolweb.org/
. Version 15 August 2010 (temporary).