Dorsal spines (total): 0; Dorsal soft rays (total): 0; Analspines: 0; Analsoft rays: 0
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Compagno, L.J.V., D.A. Ebert and M.J. Smale 1989 Guide to the sharks and rays of southern Africa. New Holland (Publ.) Ltd., London. 158 p. (Ref. 5578)
http://www.fishbase.org/references/FBRefSummary.php?id=5578&speccode=5891
