[Neoselachii] Compagno, 1977 - modern sharks and rays see Infraclass Elasmobranchii Bonaparte, 1838
   Order Carcharhiniformes Compagno, 1973 - ground sharks
     Family Proscylliidae Fowler, 1941 - finback catsharks
       Genus Ctenacis Compagno, 1973 [monotypic]
         1 Ctenacis fehlmanni (Springer, 1968) - harlequin catshark