Chordata Bateson, 1885 - chordates Class Elasmobranchii Bonaparte, 1838 see Subclass Elasmobranchii Bonaparte, 1838 Subclass Selachii see Subdivision Selachii Order Batoidei see Order Batoidea Suborder Narcaciontes [monotypic] see Order Torpediniformes 79 Family Torpedinidae Henle, 1834 - electric rays