Note

Histioteuthis reversa: Photographs of a Mature Male

Richard E. Young and Michael Vecchione
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Figure. Ventral view of a 90 mm ML mature male of H. reversa, off northeastern USA. Photograph by M. Vecchione.

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Figure. Blow-up of the previous figure of H. reversa, mature male. Numerous dark, oval photophores have appeared on the mantle and head. The typical compound photophores are more difficult to see as most are covered by chromatophores. Photograph by M. Vecchione.

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Figure. Photograph of a portion of one arm IV of H. reversa, mature male, off northeastern USA, same squid as above. The white arrows point to the typical four longitudinal series of compound photophores with those of the dorsal series being much the smaller. Numerous round photophores, lacking violet color filters and anterior, silvery reflectors, have appeared as the squid became sexually mature. Some of these are dark and completely covered by chromatophores while others have contracted chromatophores allowing the blue reflectors that back the photophores to be seen. Photograph by M. Vecchione.

About This Page


University of Hawaii, Honolulu, HI, USA


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

Page: Tree of Life Histioteuthis reversa: Photographs of a Mature Male Authored by 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.

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