Supplementary material for this article is available via the Internet at

jwsJMOR.dean.mov8675KLeft lateral high-resolution CT scan of the jaw and hyoid arches of the lesser electric ray, Narcine brasiliensis. The video provides a dynamic cutaway view of the lumen of the skeletal elements. From this viewpoint, this "virtual dissection" allows the viewer to visualize the cartilaginous struts (trabeculae) reinforcing the dual quadratomandibular jaw joints.

Please note: Wiley Blackwell is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.