The Percidae are a family of ray-finned fish, part of the order Perciformes, which are found in fresh and brackish waters of the Northern Hemisphere. The majority are Nearctic, but there are also Palearctic species. The family contains more than 200 species in 11 genera. The perches, and their relatives are in this family; well-known species include the walleye, sauger, ruffe, and three species of perch. However, small fish known as darters are also a part of this family.
Sciaenidae are a family of fish in the order Perciformes. They are commonly called drums or croakers in reference to the repetitive throbbing or drumming sounds they make. The family consists of about 286 to 298 species in about 66 to 70 genera.
Batrachoididae is the only family in the ray-finned fish order Batrachoidiformes. Members of this family are usually called toadfish, or "frogfish": both the English common name and scientific name refer to their toad-like appearance.
The Mastacembelidae are a family of fishes, known as the spiny eels. The Mastacembelids are part of the Order Synbranchiformes, the swamp eels, which are part of the Actinopterygii.
Centropomus is a genus of predominantly marine fish comprising the family Centropomidae The type species is Centropomus undecimalis, the common snook. Commonly known as snooks or róbalos, the Centropomus species are native to tropical and subtropical waters of the western Atlantic and eastern Pacific Oceans.
Sweepers are small, tropical marine perciform fish of the family Pempheridae. Found in the western Atlantic Ocean and Indo-Pacific region, the family contains about 26 species in two genera. One species is the target of subsistence fisheries in Japan, where the fish is much enjoyed for its taste. Sweepers are occasionally kept in marine aquaria.
Acropomatidae is a family of fish in the order Perciformes, commonly known as lanternbellies. Acropoma species are notable for having light-emitting organs along their undersides. They are found in all temperate and tropical oceans, usually at depths of several hundred meters. There are about 32 species in as many as 9 genera, although some authorities recognise fewer genera than Fishbase does.
The Latidae, known as the lates perches, are a family of perch-like fish found in Africa, Asia, and the Indian and western Pacific Oceans. Including about 13 species, the family, previously classified subfamily Latinae in family Centropomidae, was raised to family status in 2004 after a cladistic analysis showed the original Centropomidae were paraphyletic.
The Old World silversides are a family, Atherinidae, of fish in the order Atheriniformes. They occur worldwide in tropical and temperate waters. About two-thirds of the species are marine, and the remainder live in fresh water. The 74 species are in 13 genera. The genus Craterocephalus is the most diverse with 25 species. Four genera are monotypic.
Pentacerotidae or armourheads are a small family of fishes in the order Perciformes. They are native to the Indian Ocean, western and central Pacific, and southwestern Atlantic. They are generally found at rocky reefs below normal scuba diving depths, although several species occur in low densities at shallower depths.
Percarina is a genus of ray-finned fish in the family Percidae they are found in eastern Europe. The genus is the only taxon in the monotypic subfamily Percarininae which is characterised by having the first dorsal fin having 9-11 spines and being widely separated from the second dorsal fin. They are thought to be closely related both to the perches of the genus Perca and to the ruffes of the genus Gymnocephalus.
The Microcanthinae, commonly known as footballers, mados, stripeys, and moonlighters, are a subfamily of the sea chubs, a family of marine ray-finned fish in the order Perciformes.
Thalassophryne is a genus of toadfishes found in the western Atlantic Ocean with one species found in the Amazon River and some of its tributaries.
Atherion is a small genus of silversides, known as the pricklenose silversides. It is the only genus in the family Atherionidae. Other authorities classify this as a monogeneric subfamily, Atherioninae, of the Atherinidae, while others include it within the subfamily Atherinomorinae. They have an Indo-Pacific distribution.
Porichthyinae is a subfamily of toadfish in the family Batrachoididae. They are found in the eastern Pacific Ocean and western Atlantic from Canada to Argentina. The species of this subfamily have no venom glands or subopercular spines, they have canine like teeth and two solid spines in the dorsal fin.
Ophidiinae is a subfamily of the cusk eel family Ophidiidae. The species in the subfamily are characterised by having their pelvic fins situated far forward on the body and supported by an forward orientated extension of the pelvic girdle, they lack barbels on the mouth and chin and they are covered in small cycloid scales arranged in horizontal or diagonal rows. Some species have a modified swim bladder and the anterior vertebrae which enables them to generate sounds. and some of these modifications are sexually dimorphic and make the fish capable of generating sound. They have two rays in each ventral fin and the caudal fin has 9 rays. Most species are benthic and occur on the continental shelf.
The Halophryninae is a largely Old World subfamily of toadfish, part of the family Batrachoididae.
Batrachomoeus trispinosus, the three-spined frogfish or Broadbent's frogfish, is a species of Indo-Pacific toadfish, from the largely Old World subfamily, Halophryninae, of the family Batrachoididae. It is the type species of the genus Batrachomoeus.
The Serraninae is a subfamily of perciform ray-finned fishes in the family Serranidae. It is made up of ten genera and 87 species.
Etheosomatidae is a species rich subfamily of freshwater ray-finned fish, the members of which are commonly known as the darters. The subfamily is part of the family Percidae which also includes the perches, ruffes and pikeperches. The family is endemic to North America. It consists of 3-5 different genera and well over 200 species.
