The beardfishes consist of a single extant genus, Polymixia, of deep-sea marine ray-finned fish named for their pair of long hyoid barbels. They are classified in their own order Polymixiiformes. But as Nelson says, "few groups have been shifted back and forth as frequently as this one, and they were recently added to Paracanthoptergii". For instance, they have previously been classified as belonging to the Beryciformes, and are presently considered either paracanthopterygians or the sister group to acanthopterygians. They are of little economic importance.
The Congridae are the family of conger and garden eels. Congers are valuable and often large food fishes, while garden eels live in colonies, all protruding from the sea floor after the manner of plants in a garden. The family includes over 220 species in 32 genera.
The family Stromateidae or butterfish contains 15 species of ray-finned fish in three genera. Butterfishes live in coastal waters off the Americas, western Africa and in the Indo-Pacific.
Nomeidae, the driftfishes, are a family of scombriform ray-finned fishes found in tropical and subtropical waters throughout the world. The family includes about 16 species. The largest species, such as the Cape fathead, Cubiceps capensis, reach 1 m in length.
The imperial blackfish, Schedophilus ovalis, is a medusafish of the family Centrolophidae found in the eastern Atlantic and the Mediterranean Sea, and occasionally in the western Atlantic (Bermuda). It occurs at depths of between 70 and 700 m. In its juvenile stage, it is often found finding shelter amongst the tentacles of floating jellyfish, including the Portuguese man o' war. It grows to 100 cm (39 in) total length.
The New Zealand ruffe, Schedophilus huttoni, is a medusafish of the family Centrolophidae found in southern Atlantic, Indian, and Pacific Oceans as far north as latitude 18°S, at depths of up to 1,000 m. Its length is up to 90 cm.
Psenes is a genus of driftfishes native to the Indian, Atlantic and Pacific oceans.
Scombroidei is a suborder of the order Scombriformes. The suborder includes the tunas, mackerel and snake-mackerels. Regular scombrids are observed to have large heads, eyes, and mouths. In most cases, the second dorsal fin will develop before the development of the first.
The Fur Formation is a marine geological formation of Ypresian age which crops out in the Limfjord region of northern Denmark from Silstrup via Mors and Fur to Ertebølle, and can be seen in many cliffs and quarries in the area. The Diatomite Cliffs is on the Danish list of tentative candidates for World Heritage and may become a World Heritage site. Fossils found in the Fur Formation are primarily housed at the Fossil and Mo-clay Museum on Mors Island, the Fur Museum on Fur Island, and the Natural History Museum of Denmark in Copenhagen.
Scomber is a genus of ray-finned fish in the family Scombridae living in the open ocean found in Atlantic, Indian and Pacific Ocean. The genus Scomber and the genus Rastrelliger comprise the tribe Scombrini, known as the "true mackerels". These fishes have an elongated body, highly streamlined, muscular and agile. The eyes are large, the head is elongated, with a big mouth provided with teeth. They have two triangular dorsal fins, with some stabilizing fins along the caudal peduncle. The basic color is blue-green with a silvery white belly and a darker back, usually black mottled.
Berycopsia is an extinct genus of beardfish that lived during the Turonian stage of the Late Cretaceous. It contains a single species, B. inopinnata, that inhabited marine habitats of the Tethys Sea around what is now Croatia.
Evesthes is an extinct genus of prehistoric bony fish that lived during the Upper Miocene subepoch.
Eobuglossus is an extinct genus of prehistoric bony fish that lived from the early to middle Eocene.
Imhoffius is an extinct genus of prehistoric bony fish that lived from the early to middle Eocene.
Turahbuglossus is an extinct genus of prehistoric bony fish that lived from the early to middle Eocene.
Joleaudichthys is an extinct genus of prehistoric flatfish that lived from the early to middle Eocene of Egypt.
Clidoderma is a genus of righteye flounders containing one extant species and two described fossil species from Japan.
Schedophilus is a genus of ray-finned fish in the family Centrolophidae, the medusafish. The genus has a global distribution.
Scombriformes, also known as Pelagia and Pelagiaria, is an order of ray-finned fish within the clade Percomorpha. It contains 287 extant species in 16 families, most of which were previously classified under the suborders Scombroidei and Stromateoidei of the order Perciformes.
Schedophilus medusophagus is a species of ray-finned fish belonging to the family Centrolophidae.
