As of July 2017, the

International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natur ...

(IUCN) lists 1,000 critically endangered

fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% ...

species, including 87 which are tagged as ''possibly extinct''. 3.0% of all evaluated fish species are listed as critically endangered. The IUCN also lists four fish subspecies as critically endangered. Of the subpopulations of fish evaluated by the IUCN, 20 species subpopulations and one subspecies subpopulation have been assessed as critically endangered. Additionally 3191 fish species (21% of those evaluated) are listed as ''

data deficient A data deficient (DD) species is one which has been categorized by the International Union for Conservation of Nature (IUCN) as offering insufficient information for a proper assessment of conservation status to be made. This does not necessarily ...

'', meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of ''data deficient'' indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed." This is a complete list of critically endangered fish species and subspecies evaluated by the IUCN. Species considered possibly extinct by the IUCN are marked as such. Species and subspecies which have critically endangered subpopulations (or stocks) are indicated.

Cartilaginous fishes

Includes sharks, rays, skates, and shovelnose rays. The majority of the order

Rhinopristiformes Rhinopristiformes is an order of rays, cartilaginous fishes related to sharks, containing shovelnose rays and allied groups. Families * Family Glaucostegidae (giant guitarfishes) * Family Pristidae (sawfishes) * Family Rhinidae (wedgefishes) * ...

, which includes sawfish, guitarfish, wedgefish, and other shovelnose rays, is considered critically endangered, with 28 of its 64 evaluated species considered critically endangered by the IUCN.

Carchariniformes

Pondicherry shark The Pondicherry shark (''Carcharhinus hemiodon'') is an extremely rare species of requiem shark, in the family Carcharhinidae. A small and stocky gray shark, it grows not much longer than and has a fairly long, pointed snout. This species can ...

''(Carcharhinus hemiodon)'' * Ganges shark ''(Glyphus gangeticus)'' *

Scalloped bonnethead The scalloped bonnethead (''Sphyrna corona'') is a rare, little-known species of hammerhead shark in the family Sphyrnidae. Its other common names include the mallethead shark and the crown shark. It is found in tropical and subtropical waters ...

''(Sphyrna corona)'' *

Smalleye hammerhead The smalleye hammerhead (''Sphyrna tudes''), also called the golden hammerhead or curry shark, is a small species of hammerhead shark in the family Sphyrnidae. This species is common in the shallow coastal waters of the western Atlantic Ocean, fr ...

''(Sphyrna tudes)'' *

Scoophead The scoophead (''Sphyrna media'') is a little-known species of hammerhead shark, part of the family Sphyrnidae. It inhabits the tropical waters of the western Atlantic Ocean, from Panama to southern Brazil, and in the eastern Pacific Ocean from ...

''(Sphyrna media)'' * Great hammerhead ''(Sphyrna mokarran)'' *

Scalloped hammerhead The scalloped hammerhead (''Sphyrna lewini'') is a species of hammerhead shark in the family (biology), family Hammerhead shark, Sphyrnidae. It was originally known as ''Zygaena lewini''. The Greek language, Greek word ''sphyrna'' translates into ...

''(Sphyrna lewini)'' *

Lost shark The lost shark (''Carcharhinus obsolerus''), previously known as the false smalltail shark, is a possibly extinct species of requiem shark (family Carcharhinidae). It is known only from the Western Central Pacific Ocean, in the southern South ...

''(Carcharhinus obsoletus)'' *

Borneo shark The Borneo shark (''Carcharhinus borneensis'') is a species of requiem shark, and part of the family Carcharhinidae. Extremely rare, it is known only from inshore waters around Mukah in northwestern Borneo, though it may once have been more wide ...

''(Carcharhinus borneensis)'' * Tope ''(Galeorhinus galeus)'' *

Whitefin topeshark The whitefin topeshark (''Hemitriakis leucoperiptera'') is a houndshark of the family Triakidae, found only in the tropical waters of the Philippines between latitudes 20° N and 5° N. They inhabit the coastal areas. They can grow up to a len ...

''(Hemitriakis leucoperiptera)'' * Daggernose shark ''(Isogomphon oxyrhynchus)'' *

Indian swellshark The Indian swellshark (''Cephaloscyllium silasi'') is a catshark of the family Scyliorhinidae found in the western Indian Ocean from Quilon, India and Sauqira Bay, Oman between latitude In geography, latitude is a coordinate that specifie ...

''(Cephaloscyllium silasi)'' * Reticulated swellshark ''(Cephaloscyllium fasciatum)'' * Sarawak pygmy swellshark ''(Cephaloscyllium sarawakensis)'' *

Whitefin swellshark The whitefin swellshark (''Cephaloscyllium albipinnum'') is a little-known species of catshark, belonging to the family Scyliorhinidae, endemic to southeastern Australia. It is found down, on the outer continental shelf and upper continental ...

''(Cephaloscyllium albipinnum)'' * Smalltail shark ''(Carcharhinus porosus)'' *

Pacific smalltail shark The Pacific smalltail shark (''Carcharhinus cerdale'') is a species of requiem shark, in the family Carcharhinidae. It was described in 1898, but later mistakenly merged with '' Carcharhinus porosus''. The mistake was corrected in 2011. ...

''(Carcharhinus cerdale)'' *

Oceanic whitetip shark The oceanic whitetip shark (''Carcharhinus longimanus''), also known as shipwreck shark, Brown Milbert's sand bar shark, brown shark, lesser white shark, nigano shark, oceanic white-tipped whaler, and silvertip shark, is a large pelagic requiem ...

''(Carcharhinus longimanus)'' * Spotted houndshark ''(Triakis maculata)'' * Speckled smoothhound ''(Mustelus mento)'' * Narrownose smoothhound ''(Mustelus schmitti)'' * Striped smoothhound ''(Mustelus fasciatus)'' * Humpback smoothhound ''(Mustelus whitneyi)''

Lamniformes

Sand tiger shark The sand tiger shark (''Carcharias taurus''), gray nurse shark, spotted ragged-tooth shark or blue-nurse sand tiger, is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf, from sandy sh ...

''(Carcharius taurus)''

Orectolobiformes

* Shorttail nurse shark ''(Pseudoginglymostoma brevicaudatum)''

Squaliformes

Dwarf gulper shark The dwarf gulper shark (''Centrophorus atromarginatus'') is a dogfish of the family Centrophoridae found in the Indo-West Pacific oceans, from the Gulf of Aden, Japan, Taiwan, and northern Papua New Guinea. As a Squaliform, ''Centrophorus atrom ...

''(Centrophorus atromarginatus)''

Squatiniformes

* Angelshark ''(Squatina squatina)'' *

Smoothback angelshark The smoothback angelshark (''Squatina oculata'') is an angelshark of the family Squatinidae found in the eastern Atlantic and Mediterranean. Description The smoothback angelshark can reach a length of up to 1.6 metres. As with other angelsharks ...

''(Squatina oculata)'' * Sawback angelshark ''(Squatina aculeata)'' *

Hidden angelshark The hidden angelshark ''(Squatina occulta)'' is a species of angelshark that was named by Carolus Maria Vooren and Kleber Grübel da Silva in 1994. It inhabits the Atlantic coastline of South America from southern Brazil to Argentina. Hidden ang ...

''(Squatina occulta)'' * Japanese angelshark ''(Squatina japonica)'' *

Indonesian angelshark The Indonesian angelshark (''Squatina legnota'') is a rare species of angelshark, family Squatinidae, known only from a few specimens collected from fish landing sites in southern Indonesia. It is thought to inhabit the deep waters of the contin ...

''(Squatina legnota)'' *

Argentine angelshark The Argentine angelshark (''Squatina argentina'') is an angelshark of the family Squatinidae. Measurements ''Born:'' N/A.; ''Mature:'' ~ 100.0 cm - 120 cm TL; ''Max:'' 138 (?170) cm TL. Identification ''Colour:'' Are a purplish-brown ...

''(Squatina argentina)'' *

Chilean angelshark The Chilean angelshark (''Squatina armata'') is an angelshark of the family Squatinidae found in the subtropical waters of Chile, that grows up to in length. The holotype is lost. Reproduction is ovoviviparous Ovoviviparity, ovovivipary, ovi ...

''(Squatina armata)''

Rajiformes

Common blue skate Common may refer to: Places * Common, a townland in County Tyrone, Northern Ireland * Boston Common, a central public park in Boston, Massachusetts * Cambridge Common, common land area in Cambridge, Massachusetts * Clapham Common, originally ...

* Longnose skate *

Bignose fanskate The bignose fanskate (''Sympterygia acuta'') is a species of fish in the family Arhynchobatidae. It is found off Argentina, Brazil, and Uruguay. Its natural habitats are open sea The sea, connected as the world ocean or simply the ocean, is ...

* Flapper skate * Menni's skate * Korean skate * Maltese skate * Spotback skate

Myliobatiformes

Wingfin stingray The sharpsnout stingray or wingfin stingray (''Dasyatis geijskesi'') is a species of stingray in the family (biology), family Dasyatidae, found from off Venezuela to northern Brazil. It inhabits shallow, brackish water, shifting towards the coast ...

Smalltooth stingray The smalltooth stingray (''Dasyatis rudis'') is an obscure species of stingray in the family Dasyatidae, found in the Gulf of Guinea. It is known only from a stuffed specimen described by Albert Günther in 1870, which has since been lost. In 19 ...

* Colares stingray *

Smooth stingray The short-tail stingray or smooth stingray (''Bathytoshia brevicaudata'') is a common species of stingray in the family Dasyatidae. It occurs off southern Africa, typically offshore at a depth of , and off southern Australia and New Zealand, fro ...

Pakistan whipray Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...

* Shorttail whipray * Thorny whipray * Smalleye round ray *

Reticulate round ray Reticulation is a net-like pattern, arrangement, or structure. Reticulation or Reticulated may refer to: * Reticulation (single-access key), a structure of an identification tree, where there are several possible routes to a correct identificat ...

* Tentacled butterfly ray * Starrynose cowtail ray *

Lusitanian cownose ray The Lusitanian cownose ray (''Rhinoptera marginata'') is a species of eagle ray found along the western coast of Africa and Mediterranean Sea. It is apparently very rare in the Mediterranean Sea, but is common in shallow waters off the western Afr ...

Java stingaree The Java stingaree (''Urolophus javanicus'') is a species of Myliobatiformes, stingray in the family (biology), family Urolophidae, known only from a single female specimen long caught off Jakarta, Indonesia. This species is characterized by an ...

Common eagle ray The common eagle ray (''Myliobatis aquila'') is a species of fish in the family Myliobatidae. It inhabits the eastern Atlantic Ocean (North Sea to South Africa), the Mediterranean Sea and the south-western Indian Ocean. Description The common e ...

Duckbill eagle ray Duckbill may refer to: * Platypus, ''Ornithorhynchus anatinus'' * Duckbill dinosaurs, family Hadrosauridae * Duckbill fishes, family Percophidae * Duckbill eels, family Nettastomatidae * Duckbill choke, a shotgun accessory * Duckbill valve, a va ...

Shortnose eagle ray The shortnose eagle ray (''Myliobatis ridens'') is a species of eagle ray that lives in the southwestern Atlantic Ocean off Brazil, Uruguay and Argentina. References Myliobatis Fish described in 2012 {{Chondrichthyes-stub ...

Rhinopristiformes

* Largetooth sawfish ''(Pristis pristis)'' * Smalltooth sawfish ''(Pristis pectinata)'' * Green sawfish ''(Pristis zijsron)'' * Giant guitarfish ''(Glaucostegus typus)'' *

Halavi guitarfish The halavi guitarfish (''Glaucostegus halavi'') is a species of ray found in the Indo-West Pacific (Red Sea to Gulf of Oman, with unconfirmed records in the area east of Oman). Recorded twice, in 1997 and 2004, in the levantine waters, the quest ...

''(Glaucostegus halavi)'' * Bowmouth guitarfish ''(Rhina ancylostoma)'' * Smoothback guitarfish ''(Rhinobatus lionotus)'' * Spineback guitarfish ''(Rhinobatos irvinei)'' *

Sharpnose guitarfish The sharpnose guitarfish (''Glaucostegus granulatus'') is a species of ray in the Rhinobatidae family. It is found near Australia, India, Indonesia, Kuwait, Myanmar, Pakistan, Papua New Guinea, the Philippines, Sri Lanka, Thailand, Viet ...

''(Glaucostegus granulatus)'' *

Stripenose guitarfish The stripenose guitarfish (''Acroteriobatus variegatus'') is a species of fish in the Rhinobatidae family endemic to the eastern coast of India, and Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, transli ...

''(Acroteriobatus variegatus)'' *

Clubnose guitarfish The clubnose guitarfish ''(Glaucostegus thouin)'' is a critically endangered species of ray in the Glaucostegidae family. It is found from shallow coastal waters to a depth of in the Indo-Pacific, ranging from India to Southeast Asia, and also ...

''(Glaucostegus thouin)'' *

Widenose guitarfish The widenose guitarfish (''Glaucostegus obtusus'') is a species of fish in the Rhinobatidae family. It is found in Bangladesh, Indonesia, Malaysia, Myanmar, Pakistan, Sri Lanka, and Thailand. Its natural habitats are open seas, shallow s ...

''(Glaucostegus obtusus)'' * Whitespotted guitarfish ''(Rhynchobatus djiddensis)'' * Jimbaran guitarfish ''(Rhinobatos jimbaraensis)'' *

Brown guitarfish The brown guitarfish (''Rhinobatos schlegelii'') is a species of fish in the Rhinobatidae family. It is found in western Pacific of Taiwan and the Philippines. Its natural habitats are open seas, shallow seas, coral reefs, and estuarine An es ...

''(Rhinobatos schlegeii)'' *

Blackchin guitarfish The blackchin guitarfish (''Rhinobatos cemiculus'' or sometimes ''Glaucostegus cemiculus'') is a species of cartilaginous fish in the family Rhinobatidae. It is native to the eastern Atlantic Ocean and the Mediterranean Sea. It is a bottom-dwelli ...

''(Glaucostegus cemiculus)'' * Bengal guitarfish ''(Rhinobatus annandalei)'' * Brazilian guitarfish ''(Pseudobatus horkelii)'' * Common guitarfish ''(Rhinobatos rhinobatos)'' * Philippine guitarfish ''(Rhinobatos whitei)'' *

Broadnose wedgefish The broadnose wedgefish (''Rhynchobatus springeri'') is a species of fish in the Rhinidae family. It is found in coastal and estuarine habitats in southeast Asia, where documented from Java, Borneo, Singapore, the Philippines and Thailand.Compagn ...

''(Rhynchobatus springeri)'' * Bottlenose wedgefish ''(Rhynchobatus australiae)'' *

Smoothnose wedgefish The smoothnose wedgefish (''Rhynchobatus laevis'') is a species of fish in the Rhinidae family. It is found in northern Indian Ocean and northwestern Pacific Ocean, ranging from the Arabian Sea and Persian Gulf east to Bangladesh, and South China ...

''(Rhynchobatus laevis)'' *

African wedgefish The African wedgefish, guitarra, Lubbert's guitarfish, or spikenose wedgefish (''Rhynchobatus luebberti'') is a species of fish in the Rhinidae family. It is the only species in its genus to occur in the East Atlantic. Etymology The fish is name ...

''(Rhynchobatus luebberti)'' * Taiwanese wedgefish ''(Rhynchobatus immaculatus)'' * Clown wedgefish ''(Rhynchobatus cooki)'' * Whitespotted wedgefish ''(Rhinobatus albomaculatus)'' *

False shark ray The false shark ray (''Rhynchorhina mauritaniensis'') is a species of fish in the Rhinidae family and the only species in the genus ''Rhynchorhina''. This rare ray is only known from shallow coastal Atlantic waters in Banc d’Arguin, Mauritani ...

''(Rhynchorhina mauritaniensis)''

Torpediniformes

* Red Sea torpedo ''(Torpedo suessii)'' * Argentine torpedo ''(Tetronarce puelcha)'' Subpopulations

Ray-finned fishes

There are 431 species, four subspecies, four subpopulations of species, and one subpopulations of subspecies of ray-finned fish assessed as critically endangered.

Acipenseriformes Acipenseriformes is an order of basal ray-finned fishes that includes living and fossil sturgeons and paddlefishes (Acipenseroidei), as well as the extinct families Chondrosteidae and Peipiaosteidae. They are the second earliest diver ...

Acipenseriformes includes sturgeons and paddlefishes. There are 17 species and one subpopulation in the order Acipenseriformes assessed as critically endangered.

Sturgeons

Species Subpopulations *

White sturgeon White sturgeon (''Acipenser transmontanus'') is a species of sturgeon in the family Acipenseridae of the order Acipenseriformes. They are an anadromous fish species ranging in the Eastern Pacific; from the Gulf of Alaska to Monterey, California ...

''(Acipenser transmontanus)'' (2 subpopulations)

Salmoniformes Salmonidae is a family of ray-finned fish that constitutes the only currently extant family in the order Salmoniformes . It includes salmon (both Atlantic and Pacific species), trout (both ocean-going and landlocked), chars, freshwater whitefish ...

Species Subpopulations of species *

Sockeye salmon The sockeye salmon (''Oncorhynchus nerka''), also called red salmon, kokanee salmon, blueback salmon, or simply sockeye, is an anadromous species of salmon found in the Northern Pacific Ocean and rivers discharging into it. This species is a ...

''(Oncorhynchus nerka)'' (4 subpopulations) Subpopulations of subspecies * Aral sea trout ''(Salmo trutta aralensis)'' (1 subpopulation)

Silversides

Toothcarps

Species Subspecies *''

Epiplatys fasciolatus josianae ''Epiplatys'' is a genus of African rivuline in the family Nothobranchiidae endemic to Africa as the name indicates. Several of these species are popular aquarium fish. Species These are the currently recognized species in this genus: * ''Epipla ...

'' * Ejagham killi ''(Fundulopanchax gardneri lacustris)''

Cypriniformes Cypriniformes is an order of ray-finned fish, including the carps, minnows, loaches, and relatives. Cypriniformes is an Order within the Superorder Ostariophysi consisting of "Carp-like" Ostariophysins. This order contains 11-12 familie ...

Cypriniformes includes carps, minnows, loaches and relatives. There are 145 species, one subspecies, and one subpopulation in the order Cypriniformes assessed as critically endangered.

Hillstream loaches

True loaches

Cyprinids

Species Subspecies *''

Rhodeus ocellatus smithii ''Rhodeus smithii'', sometimes known as the Japanese rosy bitterling, Japanese bitterling, or Nippon baratanago is a temperate freshwater fish belonging to the Acheilognathinae subfamily of the family Cyprinidae. It originates in stagnant wa ...

'' Subpopulations *

Common carp The Eurasian carp or European carp (''Cyprinus carpio''), widely known as the common carp, is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia.Fishbase''Cyprinus carpio'' Linnaeus, 1758/ref>Arkive The ...

''(Cyprinus carpio)'' (1 subpopulation)

Psilorhynchids

*''

Psilorhynchus tenura ''Psilorhynchus tenura'' is a critically endangered fish found in genus ''Psilorhynchus''. It is endemic to the Western Ghats of Karnataka, India, where it is restricted to two locations on the Tunga River near Sringeri Sringeri (IAST: Ś� ...

Suckers

June sucker The June sucker (''Chasmistes liorus'') is an endangered species of fish endemic to Utah Lake and the Provo River in the U.S. state of Utah. It is a gray or brownish fish with a paler belly, growing up to about . It lives alongside the Utah suc ...

''(Chasmistes liorus)'' * Razorback sucker ''(Xyrauchen texanus)''

Osmeriformes

Catfishes

Perciformes Perciformes (), also called the Percomorpha or Acanthopteri, is an order or superorder of ray-finned fish. If considered a single order, they are the most numerous order of vertebrates, containing about 41% of all bony fish. Perciformes means ...

There are 144 species, one subspecies, and one subpopulation in the order Perciformes assessed as critically endangered.

Cichlids Cichlids are fish from the family Cichlidae in the order Cichliformes. Cichlids were traditionally classed in a suborder, the Labroidei, along with the wrasses ( Labridae), in the order Perciformes, but molecular studies have contradicted this ...

Species Subspecies *''

Chromidotilapia guntheri loennbergii ''Chromidotilapia'' is a genus of cichlid fishes. The genus contains 11 species. Of these, 9 are from Central Africa, one (''C. guentheri'') is found from Liberia to Cameroon, while the remaining species (''C. cavalliensis'') is restricted to Côt ...

Percids

Gobies Gobiidae or gobies is a family of bony fish in the order Gobiiformes, one of the largest fish families comprising more than 2,000 species in more than 200 genera. Most of gobiid fish are relatively small, typically less than in length, and th ...

Other Perciformes

Species Subpopulations * Atlantic wreckfish ''(Polyprion americanus)'' (1 subpopulation)

Characiformes Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, more than 2000 different species are described, including the well-known piranha and tetras.; Buckup P.A.: "Relationshi ...

Other ray-finned fish species

Other fish species

References

01 *Fish Critically endangered fish Critically endangered fish Critically endangered fish *Fish {{bots, deny=BG19bot,Yobot

Carchariniformes

Lamniformes

Orectolobiformes

Squaliformes

Squatiniformes

Rajiformes

Myliobatiformes

Rhinopristiformes

Torpediniformes

Acipenseriformes Acipenseriformes is an order of basal ray-finned fishes that includes living and fossil sturgeons and paddlefishes (Acipenseroidei), as well as the extinct families Chondrosteidae and Peipiaosteidae. They are the second earliest diver ...

Salmoniformes Salmonidae is a family of ray-finned fish that constitutes the only currently extant family in the order Salmoniformes . It includes salmon (both Atlantic and Pacific species), trout (both ocean-going and landlocked), chars, freshwater whitefish ...

Cypriniformes Cypriniformes is an order of ray-finned fish, including the carps, minnows, loaches, and relatives. Cypriniformes is an Order within the Superorder Ostariophysi consisting of "Carp-like" Ostariophysins. This order contains 11-12 familie ...

Perciformes Perciformes (), also called the Percomorpha or Acanthopteri, is an order or superorder of ray-finned fish. If considered a single order, they are the most numerous order of vertebrates, containing about 41% of all bony fish. Perciformes means ...

Cichlids Cichlids are fish from the family Cichlidae in the order Cichliformes. Cichlids were traditionally classed in a suborder, the Labroidei, along with the wrasses ( Labridae), in the order Perciformes, but molecular studies have contradicted this ...

Gobies Gobiidae or gobies is a family of bony fish in the order Gobiiformes, one of the largest fish families comprising more than 2,000 species in more than 200 genera. Most of gobiid fish are relatively small, typically less than in length, and th ...

Other Perciformes

Characiformes Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, more than 2000 different species are described, including the well-known piranha and tetras.; Buckup P.A.: "Relationshi ...

Other ray-finned fish species

Other fish species

See also

References