Note

Cephalopod Hook Terminology

Richard E. Young, Michael Vecchione, and Katharina M. Mangold (1922-2003)

Cephalopoda Glossary


 

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Figure. The schematic drawing on the left of an arm hook defines the hook terminology. This hook shows only the horny structure that comprises the hook itself; the fleshy sheath, stalk and base are not included.

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Figure. The hooks on the tentacular club of this preserved Ancistrocheirus are enclosed in a fleshy sheath, as are all hooks. The sheath presumably secretes the hook and, perhaps, protects the squids arms from becoming accidently impaled. The broad circular bases of some hooks (see arrow) with their short, narrow stalks allows these hooks to swivel rather than tilt. Photograph by R. Young.

About This Page


University of Hawaii, Honolulu, HI, USA


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

Katharina M. Mangold (1922-2003)
Laboratoire Arago, Banyuls-Sur-Mer, France

Page: Tree of Life Cephalopod Hook Terminology Authored by Richard E. Young, Michael Vecchione, and Katharina M. Mangold (1922-2003). 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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