Subclass Elasmobranchii Bonaparte, 1838 - shark-like fishes Cohort Euselachii Hay, 1902 - spined sharks and relatives see Infraclass Euselachii Hay, 1902 Subcohort Neoselachii Compagno, 1977 - modern sharks and rays see Cohort Neoselachii Compagno, 1977 Order Torpediniformes - electric rays 1 Family Torpedinidae Henle, 1834 - electric rays 2 Family Narkidae Fowler, 1934 see Subfamily Narkinae