Several sepioid families have a superficial lateral funnel adductor muscle (figure below) that supports the attachment of the funnel to the head. In ommastrephid squids the dorsal funnel adductor muscles have one muscle bundle that has migrated during evolution to a similar lateral position. These latter muscles are attached anteriorly to the cephalic cartilage while the lateral funnel adductors attach to the head musculature. In addition, some cranchiid squids have an attachment somewhat similar to the sepioid one. For the purposes of keys, these three types are not distinguished.
Click on an image to view larger version & data in a new window
Figure. Ventral view of of Rossia macrosoma, with the ventral portion of the mantle removed, showing the lateral funnel adductors (arrow). Drawing modified from Naef, 1921-23.
Naef, A. 1921-23. Cephalopoda. Fauna und Flora des Golfes von Neapel. Monograph, no. 35. English translation: A. Mercado (1972). Israel Program for Scientific Translations Ltd., Jerusalem, Israel. 863pp., IPST Cat. No. 5110/1,2.
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 copyright © 2001 , , and Katharina M. Mangold (1922-2003)
Page: Tree of Life
Cephalopod Lateral Funnel Adductor
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