Note

Cephalopod Brachial and Buccal Crowns

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

Cephalopoda Glossary


The outer ring of arms and tentacles is the brachial crown. The inner ring formed by the buccal membrane and buccal supports is the buccal crown. The lateral keel of arm IV is also known as the "tentacular sheath."

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Figure. Oral view of the brachial crown of a loliginid squid. Drawing modified from Naef, 1923 (Cephalopoda. Fauna und Flora des Golfes von Neapel. Monograph, no. 35)

In this illustration, the buccal connectives attach to the dorsal margins of arms I and II and to the ventral margins of arms III and IV (i.e., the formula is DDVV). Buccal suckers occur in only a few decapodiform families. The number of buccal supports varies from six to eight.

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 Brachial and Buccal Crowns 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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