Click on the first letter of the common name.

Threatened Fish

 		Species 1 - 50 of 55 [ next ]
Thumbnail for Lamna ditropis (Salmon shark)
Salmon shark (Lamna ditropis)
This formidable hunter, which is sometimes mistaken for the white shark (Carcharodon carcharias), can be distinguished by... More 1 Image 2 Videos
Thumbnail for Gambusia georgei (San Marcos gambusia)
San Marcos gambusia (Gambusia georgei)
Information on the San Marcos gambusia is currently being researched and written and will appear here shortly... More 2 Images 0 Videos
Thumbnail for Carcharias taurus (Sand tiger shark)
Sand tiger shark (Carcharias taurus)
This stocky shark has a conical nose and a slightly flattened head. It is a dark brown or beige colour above, with blotches of... More 15 Images 4 Videos
Thumbnail for Carcharhinus plumbeus (Sandbar shark)
Sandbar shark (Carcharhinus plumbeus)
The most distinctive feature of this stocky, grey shark is its huge dorsal fin, which increases its stability as it cruises the sea... More 9 Images 1 Video
Thumbnail for Oreochromis esculentus (Savoury cichlid)
Savoury cichlid (Oreochromis esculentus)
Information on the savoury cichlid is currently being researched and written and will appear here shortly... More 2 Images 0 Videos
Thumbnail for Barbus serra (Sawfin)
Sawfin (Barbus serra)
The sawfin is a river-dwelling, South African fish with a long, pointed snout and a large first dorsal fin that is bony and... More 2 Images 0 Videos
Thumbnail for Sphyrna lewini (Scalloped hammerhead)
Scalloped hammerhead (Sphyrna lewini)
This large hammerhead shark can be distinguished from other hammerhead species by the ‘scalloped’ front edge of its hammer-shaped... More 18 Images 7 Videos
Thumbnail for Heptranchias perlo (Sharpnose sevengill shark)
Sharpnose sevengill shark (Heptranchias perlo)
The large, florescent green eyes of this slender shark may be its most noticeable feature as it moves silently though the ocean... More 1 Image 0 Videos
Thumbnail for Negaprion acutidens (Sharptooth lemon shark)
Sharptooth lemon shark (Negaprion acutidens)
This big, stocky shark looks almost identical to the lemon shark (Negaprion brevirostris), but can be distinguished by the... More 5 Images 0 Videos
Thumbnail for Hippocampus sindonis (Shiho’s seahorse)
Shiho’s seahorse (Hippocampus sindonis)
Information on the Shiho’s seahorse is currently being researched and written and will appear here shortly... More 1 Image 0 Videos
Thumbnail for Eurypegasus draconis (Short dragonfish)
Short dragonfish (Eurypegasus draconis)
Information on the short dragonfish is currently being researched and written and will appear here shortly... More 14 Images 1 Video
Thumbnail for Hippocampus breviceps (Short-snouted seahorse)
Short-snouted seahorse (Hippocampus breviceps)
Information on the short-snouted seahorse is currently being researched and written and will appear here shortly... More 11 Images 0 Videos
Thumbnail for Pseudoginglymostoma brevicaudatum (Short-tail nurse shark)
Short-tail nurse shark (Pseudoginglymostoma brevicaudatum)
Information on the short-tail nurse shark is currently being researched and written and will appear here shortly... More 1 Image 0 Videos
Thumbnail for Isurus oxyrinchus (Shortfin mako)
Shortfin mako (Isurus oxyrinchus)
The shortfin mako is believed to be the fastest-swimming of all sharks, thought to be capable of attaining bursts of speed of up to... More 11 Images 4 Videos
Thumbnail for Coregonus zenithicus (Shortjaw cisco)
Shortjaw cisco (Coregonus zenithicus)
Information on the shortjaw cisco is currently being researched and written and will appear here shortly... More 2 Images 0 Videos
Thumbnail for Acipenser brevirostrum (Shortnose sturgeon)
Shortnose sturgeon (Acipenser brevirostrum)
Information on the shortnose sturgeon is currently being researched and written and will appear here shortly... More 1 Image 0 Videos
Thumbnail for Squalus mitsukurii (Shortspine spurdog)
Shortspine spurdog (Squalus mitsukurii)
The shortspine spurdog, belonging to the Squalidae, or dogfish family, is characterised by having two dorsal fins, each preceded by... More 3 Images 0 Videos
Thumbnail for Cottus greenei (Shoshone sculpin)
Shoshone sculpin (Cottus greenei)
Information on the Shoshone sculpin is currently being researched and written and will appear here shortly... More 1 Image 0 Videos
Thumbnail for Rhinobatos productus (Shovelnose guitarfish)
Shovelnose guitarfish (Rhinobatos productus)
The shovelnose guitarfish has an unusual body shape, intermediate between that of a shark and a ray, and is named for its long... More 8 Images 0 Videos
Thumbnail for Acipenser baerii (Siberian sturgeon)
Siberian sturgeon (Acipenser baerii)
Information on the Siberian sturgeon is currently being researched and written and will appear here shortly... More 6 Images 2 Videos
Thumbnail for Balantiocheilos melanopterus (Silver shark)
Silver shark (Balantiocheilos melanopterus)
Information on the silver shark is currently being researched and written and will appear here shortly... More 9 Images 0 Videos
Thumbnail for Etheostoma boschungi (Slackwater darter)
Slackwater darter (Etheostoma boschungi)
Information on the slackwater darter is currently being researched and written and will appear here shortly... More 2 Images 0 Videos
Thumbnail for Erimystax cahni (Slender chub)
Slender chub (Erimystax cahni)
Information on the slender chub is currently being researched and written and will appear here shortly... More 1 Image 0 Videos
Thumbnail for Sphyrna tudes (Smalleye hammerhead)
Smalleye hammerhead (Sphyrna tudes)
The most prominent feature of the smalleye hammerhead, like other hammerhead species, is its peculiar mallet-shaped head structure... More 2 Images 0 Videos
Thumbnail for Notropis buccula (Smalleye shiner)
Smalleye shiner (Notropis buccula)
Information on the smalleye shiner is currently being researched and written and will appear here shortly... More 1 Image 0 Videos
Thumbnail for Raja microocellata (Smalleyed ray)
Smalleyed ray (Raja microocellata)
Like other skates and rays, the most notable feature of the smalleyed ray is its large pectoral fins that provide gentle propulsion... More 3 Images 0 Videos
Thumbnail for Epinephelus polylepis (Smallscaled grouper)
Smallscaled grouper (Epinephelus polylepis)
Having been repeatedly misidentified as Epinephelus chlorostigma for almost a century, the smallscaled grouper was first... More 1 Image 0 Videos
Thumbnail for Odontaspis ferox (Smalltooth sand tiger shark)
Smalltooth sand tiger shark (Odontaspis ferox)
Information on the smalltooth sand tiger shark is currently being researched and written and will appear here shortly... More 3 Images 0 Videos
Thumbnail for Pristis pectinata (Smalltooth sawfish)
Smalltooth sawfish (Pristis pectinata)
The smalltooth sawfish gets its name from the Greek word ‘pristis’, meaning saw and the small teeth that line the edges of its saw... More 1 Image 0 Videos
Thumbnail for Sphyrna zygaena (Smooth hammerhead)
Smooth hammerhead (Sphyrna zygaena)
A member of a large and easily recognisable group of sharks, the smooth hammerhead can be distinguished from the other hammerhead... More 6 Images 0 Videos
Thumbnail for Mobula thurstoni (Smoothtail devil ray)
Smoothtail devil ray (Mobula thurstoni)
Like other rays, the smoothtail devil ray has a distinctive disc-like body with large, triangular pectoral fins that function like... More 5 Images 0 Videos
Thumbnail for Mobula munkiana (Smoothtail mobula)
Smoothtail mobula (Mobula munkiana)
In common with other species in the Mobulidae family, the smoothtail mobula has long, pointed, pectoral fins which it strokes up... More 5 Images 1 Video
Thumbnail for Acanthurus sohal (Sohal surgeonfish)
Sohal surgeonfish (Acanthurus sohal)
Information on the Sohal surgeonfish is currently being researched and written and will appear here shortly... More 10 Images 0 Videos
Thumbnail for Oxylapia polli (Songatana)
Songatana (Oxylapia polli)
Information on the songatana is currently being researched and written and will appear here shortly... More 1 Image 0 Videos
Thumbnail for Thunnus maccoyii (Southern bluefin tuna)
Southern bluefin tuna (Thunnus maccoyii)
The southern bluefin tuna is one of the largest bony fish in the world. The incredibly streamlined and powerful body is deepest... More 4 Images 1 Video
Thumbnail for Dasyatis americana (Southern stingray)
Southern stingray (Dasyatis americana)
The southern stingray is adapted for life on the sea bed. The flattened, diamond-shaped body has sharp corners, making it more... More 15 Images 1 Video
Thumbnail for Lethrinus nebulosus (Spangled emperor)
Spangled emperor (Lethrinus nebulosus)
Information on the spangled emperor is currently being researched and written and will appear here shortly... More 5 Images 0 Videos
Thumbnail for Aphanius iberus (Spanish toothcarp)
Spanish toothcarp (Aphanius iberus)
Information on the Spanish toothcarp is currently being researched and written and will appear here shortly... More 1 Image 0 Videos
Thumbnail for Carcharhinus brevipinna (Spinner shark)
Spinner shark (Carcharhinus brevipinna)
The spinner shark is a long, slender-bodied shark, so named for its habit of leaping from the water, when hooked or pursuing prey... More 5 Images 1 Video
Thumbnail for Squalus acanthias (Spiny dogfish)
Spiny dogfish (Squalus acanthias)
The common name ‘dogfish’ was given by fisherman to small sharks due to their habit of hunting shoals of fish in ‘packs’. The spiny... More 11 Images 0 Videos
Thumbnail for Solegnathus spinosissimus (Spiny pipehorse)
Spiny pipehorse (Solegnathus spinosissimus)
Pipehorses are small fishes with slender and elongate bodies. Unlike many other fish, their bodies have no internal bones or... More 10 Images 0 Videos
Thumbnail for Hippocampus histrix (Spiny seahorse)
Spiny seahorse (Hippocampus histrix)
Named after the spines that project from the corners of the bony plates covering the body, the spiny seahorse is, like all... More 23 Images 0 Videos
Thumbnail for Epinephelus diacanthus (Spinycheek grouper)
Spinycheek grouper (Epinephelus diacanthus)
As its name suggests, the spinycheek grouper has one to five, prominent spines on its cheek, in front of the gills. Like other... More 2 Images 0 Videos
Thumbnail for Sanopus splendidus (Splendid toadfish)
Splendid toadfish (Sanopus splendidus)
With vibrant, bright yellow fins and distinctive patterning, the splendid toadfish is a striking exception to the typical drab... More 3 Images 0 Videos
Thumbnail for Betta macrostoma (Spotfin betta)
Spotfin betta (Betta macrostoma)
The spotfin betta is a small and attractively marked freshwater fish, and gains its common name from the black ‘eye’ spot on the... More 6 Images 0 Videos
Thumbnail for Aetobatus narinari (Spotted eagle ray)
Spotted eagle ray (Aetobatus narinari)
The spotted eagle ray is very distinctive with a flattened body and triangular corners to the wing-like pectoral fins. The snout is... More 22 Images 9 Videos
Thumbnail for Brachionichthys hirsutus (Spotted handfish)
Spotted handfish (Brachionichthys hirsutus)
The spotted handfish is one of the world's most endangered marine fish. This extremely distinctive fish is almost pear-shaped and... More 6 Images 4 Videos
Thumbnail for Orectolobus maculatus (Spotted wobbegong)
Spotted wobbegong (Orectolobus maculatus)
With its broad and flattened body, and cryptic colouration, the spotted wobbegong is perfectly adapted to a life on the seabed. It... More 8 Images 0 Videos
Thumbnail for Acipenser stellatus (Star sturgeon)
Star sturgeon (Acipenser stellatus)
Belonging to an ancient group of fish, the prehistoric-looking star sturgeon is notable for being one of the three main caviar... More 5 Images 0 Videos
Thumbnail for Acipenser ruthenus (Sterlet)
Sterlet (Acipenser ruthenus)
Information on the sterlet is currently being researched and written and will appear here shortly... More 10 Images 0 Videos
Species 1 - 50 of 55 [ next ]