Trachichthyiformes

The Trachichthyiformes /træˈkɪkθi.ɪfɔːrmiːz/ are an order of ray-finned fishes in the superorder Acanthopterygii.

Fossils of this group date back to the Cenomanian.

Member genera include the flashlight fishes, fangtooth fishes, spinyfins, pineconefishes, redfishes, roughies, and slimeheads. A number of member species are caught commercially, most notably the orange roughy. Some species have bioluminescent bacteria contained in pockets of skin or in light organs near the eyes, including the anomalopids and monocentrids.