The Poeciliidae are a family of freshwater fishes of the order Cyprinodontiformes, the tooth-carps, and include well-known live-bearing aquarium fish, such as the guppy, molly, platy, and swordtail. The original distribution of the family was the Southeastern United States to north of Río de la Plata, Argentina, and Africa, including Madagascar. Due to release of aquarium specimens and the widespread use of species of the genera Poecilia and Gambusia for mosquito control, though, poeciliids can today be found in all tropical and subtropical areas of the world. In addition, Poecilia and Gambusia specimens have been identified in hot springs pools as far north as Banff, Alberta.
The Serranidae are a large family of fishes belonging to the order Perciformes. The family contains about 450 species in 65 genera, including the sea basses and the groupers. Although many species are small, in some cases less than 10 cm (3.9 in), the giant grouper is one of the largest bony fishes in the world, growing to 2.7 m in length and 400 kg (880 lb) in weight. Representatives of this group live in tropical and subtropical seas worldwide.
The eelpouts are the ray-finned fish family Zoarcidae. As the common name suggests, they are somewhat eel-like in appearance. All of the roughly 300 species are marine and mostly bottom-dwelling, some at great depths. Eelpouts are predominantly found in the Northern Hemisphere. The arctic, north pacific and north Atlantic oceans have the highest concentration of species, however species are found around the globe.
The Carangidae are a family of ray-finned fish that includes the jacks, pompanos, jack mackerels, runners, trevallies, and scads. It is the largest of the six families included within the order Carangiformes. Some authorities classify it as the only family within that order but molecular and anatomical studies indicate that there is a close relationship between this family and the five former Perciform families which make up the Carangiformes.
Rainbowfishes are small, colourful freshwater fishes belonging to the family Melanotaeniidae, found in northern and eastern Australia, New Guinea, Sulawesi and Madagascar.
Anthias are members of the family Serranidae and make up the subfamily Anthiinae. The name Anthiidae is preoccupied by a subfamily of ground beetles in the family Carabidae created by Bonelli in 1813 and this grouping should be called the Anthiadinae. However, both the 5th Edition of Fishes of the World and Fishbase give the Serranid subfamily as "Anthiinae".
The longfins, also known as roundheads or spiny basslets, are a family, Plesiopidae, which were formerly placed in the order Perciformes but are now regarded as being incertae sedis in the subseries Ovalentaria in the clade Percomorpha. They are elongated fishes, found in the Indian Ocean and western Pacific Ocean.
The Percophidae, duckbills, are a family of percomorph fishes, from the order Trachiniformes, found in tropical and subtropical waters of the Atlantic and Indian Oceans and in the southwestern and southeastern Pacific.
Macroramphosidae, the snipefishes and bellowsfishes is a family of oviparous, marine fish which form part of the superfamily Centriscoidea, which is one of the two superfamilies in the suborder Aulostomoidei of the order Syngnathiformes, which includes the seahorses, pipefishes, trumpetfishes and dragonets. It has been considered to be a subfamily of the Centriscidae but Nelson (2016) classified it as a family.
Phallostethidae, also known as the priapium fish, is a family of atheriniform fish native to freshwater and brackish habitats in southeast Asia.
Bellator is a genus of marine ray-finned fishes belonging to the family Triglidae, one of two genera belonging to the subfamily Prionotinae, the sea robins. These fishes are found in the Western Atlantic Ocean and eastern Pacific Ocean, in the waters off both North and South America.
Neostethus is a genus of fishes in the family Phallostethidae, native to freshwater and brackish habitats in southeast Asia, with the majority of the species restricted to the Philippines.
Poeciliinae is a subfamily of killifish from the family Poeciliidae which contains species from the Americas which are collectively known as the livebearers because many, but not all, of the species within the subfamily are ovoviviparous.
Bembropinae is a subfamily of duckbill fishes from the family Percophidae.
The Pseudaminae is a subfamily of ray-finned fishes, one of two subfamilies of the family Apogonidae, the cardinalfishes. They are characterised by having large caniform teeth which are placed on the on dentary and premaxillae, by having the lateral line absent or incomplete, by having no scales or if scales are present they are cycloid. One species, Gymnapogon urospilotus, is notable for its larvae being rather large and fast-swimming.
The Acanthoclininae is a subfamily of ray-finned fishes, one of two in the family Plesiopidae. They are characterised by the head being scaleless or nearly scaleless, a dorsal fin which has 17–26 spines and 2–6 soft rays, an anal fin having 7–16 spines and 2–6 soft rays while the pelvic fin has one spine and two soft rays. There are between one and four lateral lines, the number of vertebrae is between 26 and 35. They grow to a maximum length about 30 centimetres (12 in).
Melanotaeniinae the Australian rainbowfishes is a subfamily of the rainbowfishes of the family Melanotaeniidae. They are a group of small, colourful, freshwater fish found in northern and eastern Australia, New Guinea, islands in Cenderawasih Bay the Raja Ampat Islands in Indonesia and in Madagascar.
Naucratinae is a subfamily of ray-finned fish from the family Carangidae which consists of five genera and 13 species.
Scorpaenini is a tribe of marine ray-finned fishes, one of two tribes in the subfamily Scorpaeninae. This tribe contains the "typical" or "true" scorpionfishes. The taxonomy of the scorpionfishes is in some flux, the 5th Edition of Fishes of the World treats this taxa as a tribe within the subfamily Scorpaeninae of the family Scorpaenidae within the order Scorpaeniformes, while other authorities treat it as a subfamily within a reduced family Scorpaenidae within the suborder Scorpaenoidei, or the superfamily Scorpaenoidea within the order Perciformes.
Lycodinae is a subfamily of marine ray-finned fish belonging to the family Zoarcidae, the eelpouts. These eelpouts are found are in all the world's oceans, with a number of species being found off southern South America.
