The gnomefishes form a small family, Scombropidae, consisting of three extant species of marine ray-finned fish in the genus Scombrops. They have two dorsal fins and are notable for scales covering the soft parts of the dorsal and anal fins. The eyes are large. The gnomefish, S. boops, lives in deep rocky areas, down to 400 m. It can grow to 150 cm total length and 16 kg weight.
Anablepidae is a family of ray-finned fishes which live in brackish and freshwater habitats from southern Mexico to southern South America. There are three genera with sixteen species: the four-eyed fishes, the onesided livebearers and the white-eye, Oxyzygonectes dovii. Fish of this family eat mostly insects and other invertebrates.
Sawtooth eels are a family, Serrivomeridae, of eels found in temperate and tropical seas worldwide.
The wreckfish are a small group of ray-finned fish in the genus Polyprion, belonging to the monotypic family Polyprionidae in the order Acropomatiformes.
Trichogaster is a genus of gouramis native to South Asia from Pakistan to Myanmar. It is the only genus in the monotypic subfamily Trichogastrinae as set out in the 5th Edition of Fishes of the World, although that book states that there are two genera, the other being Colisa which is treated as a synonym of Trichogaster by Fishbase and the Catalog of Fishes. Fishbase also places the genus in the Luciocephalinae. Species of this genus are very popular in the aquarium trade.
Drepane is a genus of marine and brackish water ray-finned fishes, known commonly as the sicklefishes. It is the only genus in the monotypic percomorph family Drepaneidae. These fish occur in the Indian and western Pacific Oceans, and in the eastern Atlantic near Africa.
The long-finned pike or yellowfin pike is a species of acropomatiform ray-finned fish, the only species in the genus Dinolestes, as well as the family Dinolestidae.
Dichistius is a genus of centrarchiform ray-finned fishes, the galjoen fishes, native to the Atlantic coast of southern Africa and the Indian Ocean coast of southern Africa. Growing to lengths of 80 cm (31 in) and 35 cm (14 in), both known species are popular commercial and game fishes.
Oplegnathus is currently the sole recognized genus in the knifejaw family (Oplegnathidae) of marine centrarchiform ray-finned fishes. The largest, the Cape knifejaw, can reach a maximum length around 90 cm (35 in). Knifejaws have teeth fused into a parrot-like beak in adulthood. They feed on barnacles and mollusks, and are fished commercially. They are native to the Indian and Pacific Oceans.
Percilia is a genus of perch-like ray-finned fish in the monogeneric family Perciliidae.
Gymnocephalus is a genus of ray-finned fishes from the family Percidae, which includes the perches, pike-perches and darters. They are from the Western Palearctic area, although one species, Gymnocephalus cernua has been accidentally introduced to the Great Lakes region where it is regarded as an invasive species. They have the common name "ruffe" and resemble the true perches in the genus Perca, but are usually smaller and have a different pattern.
Glaucosoma, the pearl perches, are ray-finned fishes native to the Indian Ocean waters around Australia and the western Pacific Ocean. This genus is currently the only one assigned to the family Glaucosomatidae.
The oceanic basslets are ray-finned fish that belong to the small family Howellidae within the order Acropomatiformes. The family includes about 9 species. They are mostly deep-water species, some of which move to shallower waters at night. Various species are found in the Indian Ocean, Pacific Ocean, including the Coral Sea, and Atlantic Ocean, including the Caribbean Sea.
Lipogenys gillii, the blackfin tapirfish, is a species of spiny eel in the family Notacanthidae, the only member of its genus. It is a benthic deep-sea fish occurring along the eastern coast of North America and in the southwestern Pacific near Australia at depths from 400 to 2,000 m.
Polyacanthonotus is a genus of spiny eels, with these currently recognized species:
Brotula is a genus of cusk-eels. It is the only genus in the subfamily Brotulinae.
Bothragonus is a genus of marine ray-finned fishes belonging to the family Agonidae, the poachers and related fishes. It is the only genus in monotypic subfamily Bothragoninae. These fishes are found in the northern Pacific Ocean.
Parabembras is a genus of marine ray-finned fish belonging to the family Bembridae, the deepwater flatheads, although they are sufficiently different from the other genera in that family to be classified as their own family, Parabembradidae, by some authorities. These fishes are found in the Indian Ocean and the western Pacific Ocean.
Banjos is a genus of marine ray-finned fish, the only genus in the monotypic family Banjosidae, which is part of the order Acropomatiformes. They are native to the western Indian and the Atlantic coasts of Africa, and is made up of the three species of banjofishes.
Paradicichthyinae is a subfamily of marine ray-finned fishes, one of four subfamilies classified within the family Lutjanidae, the snappers.
