[Neoselachii] Compagno, 1977 - modern sharks and rays see Cohort Neoselachii Compagno, 1977 Order Carcharhiniformes Compagno, 1973 - ground sharks Family Triakidae Gray, 1851 - houndsharks Genus Scylliogaleus Boulenger, 1902 [monotypic] 1 Scylliogaleus quecketti Boulenger, 1902 - flapnose houndshark