The Scorpaeniformes are a diverse order of ray-finned fish, including the lionfishes and sculpins, but have also been called the Scleroparei. It is one of the five largest orders of bony fishes by number of species, with over 1,320.
The Scorpaenidae are a family of mostly marine fish that includes many of the world's most venomous species. As their name suggests, scorpionfish have a type of "sting" in the form of sharp spines coated with venomous mucus. The family is a large one, with hundreds of members. They are widespread in tropical and temperate seas but mostly found in the Indo-Pacific. They should not be confused with the cabezones, of the genus Scorpaenichthys, which belong to a separate, though related, family, Cottidae.
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.
Scorpaenoidei is a suborder of ray-finned fishes, part of the order Perciformes, that includes the scorpionfishes, lionfishes and velvetfishes. This suborder is at its most diverse in the Pacific and Indian Oceans but is also found in the Atlantic Ocean.
Ophichthidae is a family of fish in the order Anguilliformes, commonly known as the snake eels. The term "Ophichthidae" comes from Greek ophis ("serpent") and ichthys ("fish"). Snake eels are also burrowing eels. They are named for their physical appearance, as they have long, cylindrical, snake-like bodies. This family is found worldwide in tropical to warm temperate waters. They inhabit a wide range of habitats, from coastal shallows and even rivers, to depths below 800 m (2,600 ft). Most species are bottom dwellers, hiding in mud or sand to capture their prey of crustaceans and small fish, but some are pelagic.
The superorder Elopomorpha contains a variety of types of fishes that range from typical silvery-colored species, such as the tarpons and ladyfishes of the Elopiformes and the bonefishes of the Albuliformes, to the long and slender, smooth-bodied eels of the Anguilliformes. The one characteristic uniting this group of fishes is they all have leptocephalus larvae, which are unique to the Elopomorpha. No other fishes have this type of larvae.
Anguilloidei is a suborder of ray-finned fishes belonging to the order Anguilliformes, the eels.
Leptocephalus is a genus that was used for species of larval eels, called leptocephali. Leptocephali larvae differ so much in appearance from their adults. When first discovered, leptocephali were thought to be a distinct type of fish, not an eel specie. Because of this, the genus designation of Leptocephalus was used for a while for an unidentified leptocephali. After it was known that these were eel larvae, it was identified to be part of a wastebasket taxon, but not anymore in the present classification system. Examples of marine congrid larvae, found in the western Indian Ocean and the Red Sea that were named this way are listed below. Only two species in two families are currently treated as having any validity, though the validity of L. bellottii is strongly in doubt.
The Chlopsidae, or false morays, are a family of marine ray-finned fishes belonging to the order Anguilliformes, the eels. The eels in this family arefound in coral reefs worldwide. As their name suggests, they somewhat resemble moray eels in appearance. However, they are smaller than true morays, ranging from 11 to 42 cm in length.
Eels are ray-finned fish belonging to the order Anguilliformes, which consists of eight suborders, 20 families, 164 genera, and about 1000 species. Eels undergo considerable development from the early larval stage to the eventual adult stage and are usually predators.
Cynoponticus is a genus of marine ray-fiined fishes belonging to the family Muraenesocidae, the pike congers. The fishes in this genus are found in the Eastern and Western Atlantic Oceans and the Eastern Pacific Ocean, with a single parapatric species in each region.
Herpetoichthys is a genus of marine ray-finned fishes belonging to the subfamily Ophichthinae, the snake eels, in the family Ophichthidae, which also includes the worm eels. These eels are found in the Eastern pacific and Eastern Atlantic Ocean.
Platycephaloidei is a suborder of ray-finned fishes, part of the order Scorpaeniformes, and includes the flatheads, ghost flatheads and sea robins.
Bathycongrus aequoreus is an eel in the family Congridae. It was described by Charles Henry Gilbert and Frank Cramer in 1897, originally under the genus Congermuraena. It is a marine, deep water-dwelling eel which is known from Hawaii, in the eastern central Pacific Ocean. It dwells at a depth range of 300–686 metres, prefers deeper water and leads a benthic lifestyle.
The yellow pike conger is a species of marine ray-finned fish belonging to the family Muraenesocidae, the pike congers. This fish is found in the Indian Ocean and the western Pacific Ocean.
Myrophinae, the worm eels, is a subfamily of ray-finned fishes belonging to the family Ophichthidae, which also includes the snake eels in the subfamily Ophichthinae.
Congroidei is a suborder of ray-finned fishes belonging to the order Anguilliformes, the eels. These eels are mostly marine, although a few species of snake eel will enter freshwater, and they are found in tropical and tempareate waters throughout the world.
Carangiformes is an order of ray-finned fishes that is part of a sister clade to the Ovalentaria, the other orders in the clade being the Synbranchiformes, Anabantiformes, Istiophoriformes, and Pleuronectiformes. The Carangiformes have been long regarded as a monotypic order with only the family Carangidae within it by some authorities, and the other current families within the order have been previously classified as part of the wider order Perciformes. The 5th edition of Fishes of the World classify six families within Carangiformes, with other authorities expanding the order to include up to 30 families.
Triglinae is a subfamily of demersal, marine ray-finned fishes, part of the family Triglidae, the gurnards and searobins. These gurnards are found in all the tropical and temperate oceans of the world except for the Western Atlantic Ocean.
