Category
page 1Actinopterygii genera

Acipenser
Acipenser is a genus of sturgeons, containing three species native to freshwater and estuarine systems of eastern North America and Europe. It is the type genus of the family Acipenseridae and the order Acipenseriformes.

Salmo
Salmo is a genus of ray-finned fish from the subfamily Salmoninae of family Salmonidae, and is part of the tribe Salmonini along with the sister genera Salvelinus and Salvethymus. Almost all Salmo species are native only in the Old World (including most of Europe, coastal North Africa and part of West Asia around the Black Sea), the only exception being the Atlantic salmon (Salmo salar), which is also naturally found across the North Atlantic in eastern North America.

Oncorhynchus
Oncorhynchus is a genus of ray-finned fish in the subfamily Salmoninae of the family Salmonidae, native to coldwater tributaries of the North Pacific basin. The genus contains sixteen extant species, namely six species of Pacific salmon and ten species of Pacific trout, all of which are migratory (either anadromous or potamodromous) mid-level predatory fish that display natal homing and semelparity.

Poecilia
Poecilia is a genus of fishes in the family Poeciliidae of the order Cyprinodontiformes. These livebearers are native to fresh, brackish and, saltwater in the Americas, and some species in the genus are euryhaline. A few have adapted to living in waters that contain high levels of toxic hydrogen sulfide (), and a population of P. mexicana lives in caves (other populations of this species are surface-living).

Coregonus
Coregonus is a diverse genus of fish in the salmon family (Salmonidae). The Coregonus species are known as whitefishes. The genus contains at least 68 described extant taxa, but the true number of species is a matter of debate. The type species of the genus is Coregonus lavaretus.
Salvelinus
Salvelinus is a genus of salmonid fish often called char or charr; some species are called "trout". Salvelinus is a member of the subfamily Salmoninae within the family Salmonidae. The genus has a northern circumpolar distribution, and most of its members are typically cold-water fish that primarily inhabit fresh waters. Many species also migrate to the sea.

Toxotes
genus of fishes

Huso
Huso is a genus of sturgeons from eastern Europe, Asia, and eastern North America. The genus name is derived from hūso, the Old High German and Medieval Latin word for "sturgeon", which is also ancestral to Hausen, the German name for the beluga sturgeon.

graylings
Thymallus, commonly known as graylings, is a genus of freshwater ray-finned fish and the only genus within the subfamily Thymallinae of the family Salmonidae. Although all Thymallus species can be generically called graylings, without specific qualification the term "grayling" typically refers to the type species Thymallus thymallus, the European grayling.
Gambusia
Gambusia is a large genus of viviparous fish in the family Poeciliidae (order Cyprinodontiformes). Gambusia contains over 40 species, most of which are principally found in freshwater habitats, though some species may also be found in brackish or saltwater habitats. The genus Gambusia comes from the Cuban term Gambusino which means 'free-lance miner'. The type species is the Cuban gambusia, G. punctata. The greatest species richness is in Mexico, Texas, and the Greater Antilles, but species are also found elsewhere in the eastern and southern United States, the Bahamas, Central America, and Co

Alosa
Alosa is a genus of fish, the river herrings, in the family Alosidae. Along with other genera in the subfamily Alosinae, they are generally known as shads. They are distinct from other herrings by having a deeper body and spawning in rivers. Several species can be found on both sides of the Atlantic Ocean and the Mediterranean Sea. Also, several taxa occur in the brackish-water Caspian Sea and the Black Sea basin. Many are found in fresh water during spawning and some are only found in landlocked fresh water.

Xiphophorus
Xiphophorus is a genus of euryhaline and freshwater fishes in the family Poeciliidae of order Cyprinodontiformes, native to Mexico and northern Central America. Xiphophorus species can be divided into three groups based on their evolutionary relationships: platyfish (or platies), northern swordtails, and southern swordtails. Platyfish formerly were classified in another genus, Platypoecilus, which is now obsolete. The type species is X. hellerii, the green swordtail. Like most other new world Poeciliids, platies and swordtails are live-bearers that use internal fertilization and give birth to

Lutjanus
Lutjanus is a genus of marine ray-finned fish, snappers belonging to the family Lutjanidae. They are found in the Atlantic, Indian, and Pacific Oceans. They are predatory fish usually found in tropical and subtropical reefs, and mangrove forests. This genus also includes two species that only occur in fresh and brackish waters.
Lophius
Members of the genus Lophius, also sometimes called monkfish, fishing-frogs, frog-fish, and sea-devils, are various species of lophiid anglerfishes found in the Atlantic and Indian Oceans. Lophius is known as the "monk" or "monkfish" to the North Sea and North Atlantic fishermen, a name which also belongs to Squatina squatina, the
angelshark, a type of shark. The North European species is Lophius piscatorius, and the Mediterranean species is Lophius budegassa.
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Micropterus
Micropterus is a genus of North American freshwater fish collectively known as the black bass, which belong to the sunfish family Centrarchidae of order Centrarchiformes. They are sometimes erroneously called "black trout", but the name trout more correctly refers to certain potamodromous members of the family Salmonidae (order Salmoniformes).

Sebastes
Sebastes is a genus of marine ray-finned fish belonging to the subfamily Sebastinae part of the family Scorpaenidae, most of which have the common name of rockfish. A few are called ocean perch, sea perch or redfish instead. They are found in the Atlantic and Pacific Oceans.

Elops
Elops is a genus of marine ray-finned fish found worldwide, and the only extant member of the ancient family Elopidae. They are commonly known as ladyfish, skipjacks, jack-rashes, or tenpounders.
Drepane
genus of fishes

Tetraodon
Tetraodon is a genus in the pufferfish family (Tetraodontidae) found in freshwater in Africa. It is the type genus of the family and historically included numerous other species; several Asian species were moved to the genera Dichotomyctere, Leiodon and Pao in 2013. The genus name comes from Ancient Greek τετρα- (tetra-), meaning "four", and ὀδούς (odoús), meaning "tooth", referring to the genus' four teeth.

Scaphirhynchus
Scaphirhynchus, from Ancient Greek σκάφη (skáphe), meaning "shovel", and ῥύγχος (rhúnkos), meaning "snout", is a genus of sturgeons native to North America. All species in this genus are considered to be threatened with extinction or worse. As of 2023, the pallid sturgeon (S. albus) and the Alabama sturgeon (S. suttkusi) are critically endangered according to the International Union for Conservation of Nature.

Hucho
Hucho is a genus of large piscivorous salmonid fish known as taimens (from Finnish , 'trout', through ), and is closely related to Pacific trout and lenoks (all belonging to the same tribe in the subfamily Salmoninae). Native to the cold rivers and other freshwater habitats in Eurasia, they are threatened by overfishing and habitat loss.
Atherina
Atherina is a genus of fish of silverside family Atherinidae, found in the temperate and tropic zones. Up to long, they are widespread in the Mediterranean, Black Sea and Sea of Azov; in lagoons such as Syvash in Ukraine; and estuaries. They enter the lower reaches of the Dnieper, Southern Bug, Dniester and Danube Rivers. They can also be found in the freshwater Lake Trichonis of Greece, and there is an isolated population in the Caspian Sea.

Kurtus
Kurtus is a genus of percomorph fishes, called the nurseryfishes, forehead brooders, or incubator fish, native to fresh, brackish and coastal marine waters ranging from India, through southeast Asia, to New Guinea and northern Australia. Kurtus is currently the only known genus in the family Kurtidae, one of two families in the order Kurtiformes. They are famous for carrying their egg clusters on hooks protruding from the forehead (supraoccipital) of the males, although this only has been documented in K. gulliveri and available evidence strongly suggests this is not done by K. indicus (where
Decapterus
Decapterus is a genus of marine fishes of jack family, Carangidae, commonly known as mackerel scads, round scads, or horse mackerel. They are found throughout the world.

Arapaima
The arapaima, pirarucu, or paiche is any large species of bonytongue in the genus Arapaima native to the Amazon and Essequibo basins of South America. Arapaima is the type genus of the subfamily Arapaiminae within the family Osteoglossidae. They are among the world's largest freshwater fish, reaching as much as in length. They are an important food fish. They have declined in the native range due to overfishing and habitat loss. In contrast, arapaima have been introduced to several tropical regions outside the native range (within South America and elsewhere), where they are sometimes consider

Plectropomus
Plectropomus, commonly known as the coral groupers, is a genus of marine ray-finned fish, groupers from the subfamily Epinephelinae, part of the family Serranidae, which also includes the anthias and sea basses. They are found in the Indo-Pacific region.

Pseudoscaphirhynchus
Pseudoscaphirhynchus is a genus of relatively small, highly threatened sturgeons that are restricted to the Aral Sea system (although extirpated from the Aral Sea itself), including the Amu Darya and Syr Darya river basins, in Central Asia.
Osmerus
Osmerus is a genus of smelt.

Amphiprion
REDIRECT Clownfish
Saccopharynx
Saccopharynx is a genus of deep-sea eels with large mouths, distensible stomachs and long, scaleless bodies. Commonly, these fish are called gulpers or gulper eels. It is the only genus in the family Saccopharyngidae, and is part of the derived lineage of the "saccopharyngiforms," which includes other mid-water eel species. The name is from Latin saccus meaning "sack" and Greek φάρυγξ, pharynx.

Periophthalmus
Periophthalmus (Mud Jumper) is a genus of fish in the family Oxudercidae that is native to coastal mangrove woods and shrubland in the Indo-Pacific region, except for P. barbarus, which lives on the Atlantic coast of Africa. It is one of the genera commonly known as mudskippers. Periophthalmus fishes are remarkable for using limited terrestrial locomotion and jumping to live temporarily out of water to feed on insects and small invertebrates. All Periophthalmus species are aggressive and territorial.
Phyllopteryx
Phyllopteryx is a genus of small fishes, commonly called seadragons, in the family Syngnathidae that are found along the western and southern coasts of Australia. Since the 19th century, the weedy or common seadragon was the only known species, until the description of the ruby seadragon in 2015. They are closely related to other members of the Syngnathidae such as the leafy seadragon, pipefish and seahorses, which all exhibit male pregnancy.

Zeus
genus of fishes
Pomatoschistus
Pomatoschistus is a genus of gobies native to fresh, brackish and marine waters of Europe, the eastern Atlantic Ocean and the Mediterranean Sea.
Neogobius
Neogobius is a genus of gobies, native to Black Sea and the Caspian Sea basins. It is part of the broader Benthophilinae subfamily which is also endemic to the same region. Nevertheless, two Neogobius species have recently turned out to be highly invasive and spread across Europe and even to the Great Lakes of North America.

Arothron
Arothron is a genus in the pufferfish family Tetraodontidae found in warm parts of the Atlantic, Indian and Pacific Ocean. These species are sometimes kept in aquaria. The largest species is A. stellatus, which can reach in length.

Gasterosteus
Gasterosteus is a genus of ray-finned fishes belonging to the family Gasterosteidae, the sticklebacks. These fishes are found in freshwater, brackish water and marine habitats in the Holarctic region.
Pungitius
Pungitius is a genus of sticklebacks.

Alectis
Alectis is a genus of fish in the family Carangidae containing three extant species, all of which are large marine fishes. They are commonly known as threadfish, diamond trevallies or pompanos, although they have no close affiliation with the true pompano genus.

Mormyrus
Mormyrus is a genus of ray-finned fish in the family Mormyridae. They are weakly electric, enabling them to navigate, to find their prey, and to communicate with other electric fish.

Aphyosemion
Aphyosemion is a genus of African rivulines endemic as the name indicates to Africa. Many of these species are popular aquarium fish.
Gnathonemus
Gnathonemus is a genus of freshwater ray-finned fishes belonging to the family Mormyridae, the elephantfishes. The fishes in this genus are found in subsaharan Africa.
Holocentrus
Holocentrus is a genus of squirrelfishes found in the Atlantic Ocean.
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Lactoria
Lactoria is a genus of marine ray-finned fishes belonging to the family Ostraciidae, the boxfishes. The fishes in this genus are found in the Indo-Pacific, with one species extending into the southeastern Atlantic.
Trisopterus
Trisopterus is a genus of small cods, family Gadidae. They are native to the northeastern Atlantic Ocean including the Mediterranean Sea.

stoplight loosejaws
genus of fishes
Myloplus
Myloplus is a genus of freshwater fish in the family Serrasalmidae found in tropical and subtropical South America, where they inhabit rivers and streams (both slow and fast-flowing). They are primarily herbivores, but also take some animal matter. Depending on the exact species, they reach up to in standard length. Adult males have a double-lobed anal fin and filamentous extensions on the dorsal fin, and both sexes (but especially males) can be brightly colored when breeding.
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Umbrine
Umbrina is a genus of fish from the croaker family Sciaenidae. The genus contains 17 species occurring in tropical and warm temperate waters of the Atlantic, the Mediterranean, the Western Indian Ocean and the eastern Pacific.

Dichistius
Dichistius is a genus of centrarchiform ray-finned fishes, the galjoen fishes, native to the Atlantic coast of southern Africa (D. capensis) and the Indian Ocean coast of southern Africa (D. multifasciatus). Growing to lengths of (D. capensis) and (D. multifasciatus), both known species are popular commercial and game fishes.
Eleginus
Eleginus is a genus of cods. There are two recognized species:
Eleginus gracilis (Tilesius, 1810) (saffron cod)
Eleginus nawaga (Walbaum, 1792) (navaga)
Ostracoberyx
Ostracoberyx is a genus of shellskin alfonsinos, the only recognized genus in the family Ostracoberycidae. This is a genus of deep-water fishes native to the Indian and western Pacific oceans.

Prosopium
Prosopium is a genus of freshwater whitefishes found in North America and parts of eastern Russia. It contains three fairly widespread species: the round whitefish, the pygmy whitefish, and the mountain whitefish. The remaining species, the Bonneville cisco, the Bonneville whitefish, and the Bear Lake whitefish are endemic to Bear Lake.

Belone
Belone is a genus of needlefish common in brackish and marine waters mainly found in the eastern Atlantic ocean to Mediterranean and Black Sea, as well. It is one of ten genera in the family Belonidae.

Marcusenius
Marcusenius is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
Metynnis
Metynnis also commonly known as the silver dollar is a genus of freshwater ray-finned fishes belonging to the family Serrasalmidae, which includes the pacus, piranhas and related fishes. The fishes in this genus are found in tropical and subtropical South America. They are herbivorous or omnivorous, and inhabit a wide range of freshwater habitats, ranging from rivers and streams (both fast- and slow-flowing), to floodplains, flooded forests, lakes, pools and reservoirs. They generally reach in standard length, although a few species may reach up to . The genus contains many of the species know
Callionymus
Callionymus is a genus of dragonets found mostly in the Indian and Pacific oceans with a few species occurring in the Atlantic Ocean.

Myripristis
thumb| Myripristis (Soldierfish) Baker Island NWR
Myripristis is a genus of soldierfishes.

Pristolepis
Pristolepis is a genus of fish in the family Pristolepididae, and a member of the order Anabantiformes. It is native to freshwater habitats in Southeast Asia and India's Western Ghats.
Gobiobotia
Gobiobotia is a genus of freshwater ray-finned fishes belonging to the family Gobionidae, the gudgeons. The species in this genus are found in eastern Asia and are typically small bottom dwellers.
Hyporhamphus
Hyporhamphus is a genus of halfbeaks. The species in this genus are distributed throughout the warmer seas of the world, most species being Indo-Pacific and there are some freshwater species.