[Neoselachii] Compagno, 1977 - modern sharks and rays see Cohort Neoselachii Compagno, 1977 Order Squaliformes Compagno, 1973 - dogfish sharks Family Squalidae Blainville, 1816 - dogfish sharks Genus Scymnodon Bocage & Capello, 1864 - velvet dogfishes Scymnodon ringensᵀ Bocage & Capello, 1864 - knifetooth dogfish