[Neoselachii] Compagno, 1977 - modern sharks and rays see Cohort Neoselachii Compagno, 1977 Order Carcharhiniformes Compagno, 1973 - ground sharks Family Scyliorhinidae Gill, 1862 - cat sharks Genus Pentanchus Smith & Radcliffe, 1912 [monotypic] 1 Pentanchus profundicolus Smith & Radcliffe, in Smith, 1912 - onefin catshark