Suborder Ophidioidei (ray-finned fish)
Parent taxon: Ophidiiformes according to R. Betancur et al. 2013
See also Constantin 1999, Danil'chenko 1960, Frizzell and Dante 1965, Lin et al. 2017 and Schwarzhans et al. 2017
Sister taxa: Benthocometes, Brotula, Bythitoidei, Carapidae, Dannevigia, Ophididae, Ophidiidae, Parabrotulidae, Rhodichthyidae
Subtaxa: Ophidioidae
Ecology: nektobenthic carnivore-parasite