List by common name
List by scientific name

Click on the first letter of the common name.

A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

Threatened Fish

Species 1 - 50 of 143 [ next ]

Airsac catfish (Heteropneustes microps)
The peculiar looking airsac catfish, known from only a few specimens, is an air-breathing, freshwater fish. A long air sac that... More	1 Image	0 Videos

Albacore tuna (Thunnus alalunga)
This large, oceanic fish is built for speed, with a torpedo-shaped body, smooth skin and streamlined fins. The albacore tuna... More	1 Image	0 Videos

Angel shark (Squatina squatina)
With its exceptionally flat body and large pectoral fins, the angel shark resembles a large ray more than a shark. Its skin... More	4 Images	0 Videos

Anguila ciega (Ophisternon infernale)
Like many cave-dwelling species, the Anguila ciega, otherwise known as the blind swamp eel, has lost its eyes and pigmentation... More	5 Images	0 Videos

Arapaima (Arapaima gigas)
The arapaima, or pirarucu as it is known in Brazil, is one of the largest freshwater fishes in the world. Its local name derives... More	6 Images	3 Videos

Asian sheepshead wrasse (Semicossyphus reticulatus)
One of the largest wrasses, the Asian sheepshead wrasse is an extraordinary pinkish-grey fish with large, swelling-like protrusions... More	1 Image	0 Videos

Atlantic halibut (Hippoglossus hippoglossus)
A highly sought after food fish, the Atlantic halibut is the largest flatfish in the world. Flatfish exhibit a unique and... More	4 Images	1 Video

Banded neolebias (Neolebias lozii)
Information on the banded neolebias is currently being researched and written and will appear here... More	2 Images	0 Videos

Barren's topminnow (Fundulus julisia)
Information on the Barren's topminnow is currently being researched and written and will appear here... More	3 Images	0 Videos

Basking shark (Cetorhinus maximus)
The basking shark is the second largest fish in the seas, after the whale shark (Rhincodon typus); its maximum size is thought... More	8 Images	3 Videos

Beluga (Huso huso)
The beluga is the largest sturgeon in the world and the largest European freshwater fish; it can reach up to 5 metres in length.... More	3 Images	1 Video

Bengaii cardinal fish (Pterapogon kauderni)
Information on the Bengaii cardinal fish is currently being researched and written and will appear here... More	11 Images	0 Videos

Big skate (Raja binoculata)
Aptly named, the big skate is the largest skate in North American waters. As with all skates, the body is flattened and disc-shaped... More	6 Images	0 Videos

Big-belly seahorse (Hippocampus abdominalis)
The big-belly seahorse is one of the largest of all seahorses, growing up to 35 cm in length. Like other seahorses, the head... More	10 Images	1 Video

Bigeye tuna (Thunnus obesus)
This large, fast-swimming tuna is an important target for numerous commercial fisheries around the world. The streamlined body... More	3 Images	0 Videos

Black sea bass (Stereolepis gigas)
As implied by its alternative name of giant sea bass, the most dramatic feature of this fish is its conspicuous size, with the... More	7 Images	0 Videos

Blacksaddled coral grouper (Plectropomus laevis)
Like other groupers, this rather wary, coral reef-dwelling fish is a large, robust species. It may be one of two colour forms: the... More	4 Images	0 Videos

Blackspotted torpedo (Torpedo fuscomaculata)
Information on the blackspotted torpedo is currently being researched and written and will appear here... More	1 Image	0 Videos

Blacktip reef shark (Carcharhinus melanopterus)
This is the most commonly encountered species of shark in tropical Indo-Pacific reefs. Its medium-sized, streamlined body... More	11 Images	1 Video

Blacktip shark (Carcharhinus limbatus)
The black tip shark is a large, stout shark, with a long, pointed snout and small eyes. Its torpedo-shaped body, grey... More	14 Images	1 Video

Blind cave fish (Astyanax mexicanus)
Information on Astyanax mexicanus is currently being researched and written and will appear here... More	2 Images	0 Videos

Blind shark (Brachaelurus waddi)
This small, stout shark gets its name from its habit of retracting its eyeballs, which causes its thick eyelids to close, when... More	5 Images	0 Videos

Blue shark (Prionace glauca)
The blue shark is easily identified by its beautifully coloured slender body, which is a deep indigo-blue across the back, shading... More	15 Images	4 Videos

Blue-spotted stingray (Taeniura lymma)
This colourful stingray is immediately recognisable by the large, bright, iridescent blue spots that adorn its oval, elongated... More	18 Images	1 Video

Bluespotted bamboo shark (Chiloscyllium plagiosum)
Information on the bluespotted bamboo shark is currently being researched and written and will appear here... More	3 Images	0 Videos

Bluntnose six-gill shark (Hexanchus griseus)
As its common name alludes, the bluntnose six-gill shark has a characteristically blunt rounded snout and six long gill slits... More	6 Images	2 Videos

Boesman's rainbowfish (Melanotaenia boesemani)
Information on the Boesman's rainbowfish is currently being researched and written and will appear here... More	3 Images	0 Videos

Bowmouth guitarfish (Rhina ancylostoma)
Named for its distinctive mouth which undulates like a longbow, this deep-bodied guitarfish is unmistakable. The species has... More	3 Images	0 Videos

Broadnose sevengill shark (Notorynchus cepedianus)
Information on the broadnose sevengill shark is currently being researched and written and will appear here... More	4 Images	0 Videos

Bronze whaler (Carcharhinus brachyurus)
Named for its bronze, or sometimes greyish-bronze upperside, this is a large, fairly slender shark with a moderately long and... More	12 Images	1 Video

Brown-marbled grouper (Epinephelus fuscoguttatus)
The brown-marbled grouper is a robust marine fish, with a pale yellowish-brown, scaled body, covered with large, irregular, dark... More	3 Images	0 Videos

Bull shark (Carcharhinus leucas)
The bull shark, named for its stocky body and ferocious reputation, is most famous for its remarkable ability to thrive in both... More	12 Images	3 Videos

Cave catfish (Clarias cavernicola)
The cave catfish is a freshwater, cave-dwelling fish. This unusual fish lacks pigment and appears a pinkish white colour. It has... More	4 Images	2 Videos

Chilean devil ray (Mobula tarapacana)
Information on the Chilean devil ray is currently being researched and written and will appear here... More	4 Images	0 Videos

Clanwilliam rock-catfish (Austroglanis gilli)
The Clanwilliam rock-catfish, found only in a few streams in South Africa, belongs to the family of Austroglanididae catfishes... More	3 Images	0 Videos

Coastal stingaree (Urolophus orarius)
The coastal stingaree is a rare endemic of southern Australian waters and is seldom seen in the wild. As with most rays, the body... More	1 Image	0 Videos

Coelacanth (Latimeria chalumnae)
The coelacanth is a ‘living fossil' previously believed to have gone extinct at the time of the dinosaurs until the first... More	7 Images	2 Videos

Common sawfish (Pristis pristis)
The common sawfish has an ironic name as it is actually a rare species, facing a very real possibility of extinction. The most... More	1 Image	0 Videos

Common seahorse (Hippocampus kuda)
The common seahorse is a relatively large species, which is not common as the English name suggests, but is classified... More	4 Images	0 Videos

Common skate (Dipturus batis)
The common skate is the largest European ray. The undersurface is dark grey with black spots or stripes and the uppersurface... More	2 Images	0 Videos

Congo blackfin (Altolamprologus calvus)
Information on the Congo blackfin is currently being researched and written and will appear here... More	7 Images	0 Videos

Crowned seahorse (Hippocampus coronatus)
This Japanese seahorse earns its common name for the tall, backward-curving crown on top of its head, which is coupled with rather... More	1 Image	0 Videos

Dama ciega blanca (Typhliasina pearsei)
Like many brotulids, this blind, cave-dwelling fish has evolved to exist completely without eyes. This unusual-looking species has... More	5 Images	0 Videos

Danube salmon (Hucho hucho)
One of the world's biggest salmonids, the Danube salmon is now amongst the most endangered fish species in Europe. This sizeable... More	1 Image	0 Videos

Daska (Pseudophoxinus stymphalicus)
Typical of most cyprinids, the daska is a small, silvery-brown fish, sometimes with a slight purplish sheen in the light, but... More	1 Image	0 Videos

Denise's pygmy seahorse (Hippocampus denise)
Denise's pygmy seahorse is a master of camouflage, its orange colouration and body tubercles exactly matching the stems and polyps... More	10 Images	0 Videos

Devil's Hole pupfish (Cyprinodon diabolis)
Found only in a single desert spring in Nevada, USA, this tiny fish has the most restricted range of any vertebrate. The smallest... More	2 Images	0 Videos

Diamond ray (Gymnura natalensis)
Information on the diamond ray is currently being researched and written and will appear here... More	3 Images	0 Videos

Double sash butterflyfish (Chaetodon marleyi)
The double sash butterflyfish is superbly suited to its common name; it swims with flitting movements, evocative of the flight... More	1 Image	0 Videos

Dusky grouper (Epinephelus marginatus)
Jacques Cousteau reportedly said that groupers were the strangest creatures he had come across at sea. The dusky grouper... More	5 Images	0 Videos

Species 1 - 50 of 143 [ next ]

In the news

Xi Zhinong

ARKive Photographers Feature at UK’s Largest Natural History Photography Symposium
More

What's new in ARKive

Golden-white tassel-ear marmoset eating a huge grub

Fascinating images of the golden-white tassel-ear marmoset.
More

Wild China

Herd of bactrian camels trotting then galloping

Wild Bactrian camels are well adapted to the harsh desert climate of the Gashun Gobi Desert.
More