Perciformes, also called the Acanthopteri, is an order or superorder of ray-finned fish in the clade Percomorpha. Perciformes means "perch-like". Among the well-known members of this group are perch and darters (Percidae), sea bass and groupers (Serranidae).
Gasterosteoidei is a suborder of ray-finned fishes that includes the sticklebacks and relatives, the 5th edition of Fishes of the World classifies this suborder within the order Scorpaeniformes.
Scorpaenoidei is a suborder of ray-finned fishes, part of the order Scorpaeniformes, 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.
Hexagrammidae, the greenlings, is a family of marine ray-finned fishes belonging to the suborder Cottoidei in the order Scorpaeniformes. These fishes are found in the North Pacific Ocean.
Peristediidae, the armored sea robins or armoured gurnards, is a family of ray-finned fishes belonging to the suborder Platycephaloidei in the order Scorpaeniformes. They are found in the deep water in the tropical and warm temperate of the world's oceans.
The Syngnathiformes are an order of ray-finned fishes that includes the sea moths, trumpetfishes and seahorses.
Acanthopterygii is a superorder of bony fishes in the class Actinopterygii. Members of this superorder are sometimes called ray-finned fishes for the characteristic sharp, bony rays in their fins; however this name is often given to the class Actinopterygii as a whole.
Pteroini is a tribe of marine ray-finned fishes, one of two tribes in the subfamily Scorpaeninae. This tribe includes the lionfishes, sawcheek scorpionfishes and turkeyfishes. 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.
Platycephaloidei is a suborder of ray-finned fishes, part of the order Scorpaeniformes, and includes the flatheads, ghost flatheads and sea robins.
Cottoidei is a suborder of ray-finned fishes which, according to the 5th edition of Fishes of the World, is placed within the order Scorpaeniformes, alongside the scorpionfishes, flatheads, eelpouts, sticklebacks and related fishes.
Callionymiformes is an order of bony fish containing two families, the dragonets Callionymidae and the Draconettidae. In some taxonomies these families make up the suborder Callionymoidei of the wider grouping known as Perciformes, Nelson (2016) recognised the order but subsequent workers have suggested that if Callionymiformes is recognised as an order then the order Syngnathiformes is rendered paraphyletic and include Callionmyoidei within that taxon.
Aulostomoidei is a suborder of the order Syngnathiformes, which also contains groups such as the seahorses, pipefishes and dragonets.
Aulostomoidei is a superfamily of the order Syngnathiformes, which also contains groups such as the seahorses, pipefishes and dragonets. It is one of two superfamilies which make up the suborder Aulostomoidei within the Syngnathiformes.
Centriscoidea is a superfamily of the suborder Aulostomoidei, part of the order which includes the sea horses, pipefishes and dragonets, the Syngnathiformes. They are characterised by having the 5-6 anterior vertebrae being elongated and the pelvic fin has a single spine and four rays.
Ovalentaria is a clade of ray-finned fishes within the Percomorpha, referred to as a subseries. It is made up of a group of fish families which are referred to in Fishes of the World's fifth edition as incertae sedis, as well as the orders Mugiliformes, Cichliformes, and Blenniiformes. It was named by W. L. Smith and T. J. Near in Wainwright et al. (2012) based on a molecular phylogeny, but the authors suggested that the group was united by the presence of demersal eggs that are attached to a substrate. Some authors have used the ordinal name Stiassnyiformes for a clade including Mugiloidei, Plesiopidae, Blenniiformes, Atherinomorpha, and Cichlidae, and this grouping does appear to be monophyletic.
Acanthuriformes is an order of ray-finned fishes, part of the Percomorpha clade. Some authorities place the fishes in the order within the Acanthuriformes in the suborders Acanthuroidea and Percoidea of the order Perciformes.
The Priacanthiformes is a proposed order of marine ray-finned fishes. The order comprises two families, the Priacanthidae and the Cepolidae, which bear very little morphological similarity to each other but which have been shown to be sister taxa in repeated molecular analyses. The exact placement of the order within the series Eupercaria is incertae sedis. However, the more traditional classification followed in the 5th Edition of the Fishes of the World places both these families within the order Perciformes.
Siganoidea is a superfamily belonging to the suborder Percoidei which in turn is the largest suborder of the order Perciformes. It contains two families of largely Indo-Pacific distribution.
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.
Sciaenoidei is a suborder of ray-finned fishes belonging to the order Acanthuriformes.
