[Neoselachii] Compagno, 1977 - modern sharks and rays see Cohort Neoselachii Compagno, 1977 Order Carcharhiniformes Compagno, 1973 - ground sharks Family Proscylliidae Fowler, 1941 - finback catsharks Genus Ctenacis L.J.V. Compagno, 1973 [monotypic] Ctenacis fehlmanni (Springer, 1968) - harlequin catshark