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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.
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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.
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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).
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