A sawshark or saw shark is a member of a shark order bearing a unique long, saw-like rostrum edged with sharp teeth, which they use to slash and disable their prey. There are eight species within the Pristiophoriformes, including the longnose or common sawshark, shortnose sawshark, Japanese sawshark, Bahamas sawshark, sixgill sawshark, African dwarf sawshark, Lana's sawshark and the tropical sawshark.
The common barbel is a species of freshwater fish belonging to the family Cyprinidae. It shares the common name 'barbel' with its many relatives in the genus Barbus, of which it is the type species. In Great Britain it is usually referred to simply as the barbel; similar names are used elsewhere in Europe, such as barbeau in France and flodbarb in Sweden. The name derives from the four whiskerlike structures located at the corners of the fish's mouth, which it uses to locate food.
Bairdiella chrysoura, the American silver perch, silver croaker or goldtail croaker, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This species is widespread along the eastern cost of North Americaand is commonly caught by inshore anglers in search of larger species. This fish is common up to 20 cm (7.9 in), but can be found uncommonly to 30 cm (12 in).
The Ripon barbel is an East African ray-finned fish species in the family Cyprinidae. A notably large barb, its maximum recorded total length is 90 cm (35 in).
Luciobarbus guiraonis is a ray-finned fish species in the family Cyprinidae. It is here placed in Luciobarbus following the IUCN, but that genus is very closely related to the other typical barbels and perhaps better considered a mere subgenus of Barbus.
Luciobarbus microcephalus is a ray-finned fish species in the family Cyprinidae. It is here placed in Luciobarbus following the IUCN, but that genus is very closely related to the other typical barbels and perhaps better considered a mere subgenus of Barbus.
The Andalusian barbel is a freshwater fish species in the family Cyprinidae. It is here placed in Luciobarbus following the IUCN, but that genus is very closely related to the other typical barbels and perhaps better considered a mere subgenus of Barbus. The Andalusian barbel was formerly included in L. bocagei as subspecies.
The Treur River barb or simply Treur barb is a species of cyprinid fish. It is endemic to northern Mpumalanga, South Africa.
Synodontis batensoda, the upside-down catfish, is a species of mochokid upside-down catfish. It is unevenly distributed in inland waters across Africa from Senegal to Ethiopia, and is also known as a squeaker or giant upside-down catfish. It was originally described by Eduard Rüppell in 1832 in the paper "Continuation of the description and figure of several new fish, in the Nile. p1-14".
The Russian sturgeon, also known as the diamond sturgeon or Danube sturgeon, is a species of fish in the family Acipenseridae. It is found in Azerbaijan, Bulgaria, Georgia, Iran, Kazakhstan, Romania, Russia, Turkey, Turkmenistan, and Ukraine. It is also found in the Caspian Sea. This fish can grow up to about 235 cm (93 in) and weigh 115 kg (254 lb). Russian sturgeon mature and reproduce slowly, making them highly vulnerable to fishing. It is distinguished from other Acipenser species by its short snout with a rounded tip as well as its lower lip which is interrupted at its center.
The marbled mountain catfish is a species of fish in the family Amphiliidae. It is found in Burundi, Kenya, Tanzania, and Uganda. Its natural habitat is rivers.
Amphilius is a genus of catfishes of the family Amphiliidae.
The bayad, is a species of bagrid catfish from Africa.
The African butter catfish is a species of fish in the family Schilbeidae. It is native to many major river systems in Africa. Other common names for the fish include butter fish, butter barbel, African glass catfish, lubangu, mystus catfish, silver barbel, and silver catfish. It was originally described as Silurus mystus by Carl Linnaeus in 1758.
Synodontis nigrita, known as the false upside down catfish, is a species of upside-down catfish that occurs widely in northern Africa. It was first described by French zoologist Achille Valenciennes in 1840. The type specimen is in the Muséum National d' Histoire Naturelle de Paris.
Synodontis ruandae is a species of upside-down catfish native to Rwanda, Burundi, and Tanzania where it is found in the Kagera River system. It was first described by Belgian ichthyologist Hubert Matthes in 1959, based upon holotypes discovered in the Kagera River at Rusumo, Rwanda. The specific name "ruandae" is derived from its type locality, Rwanda.
Synodontis melanopterus is a species of upside-down catfish that is native to Benin, Niger and Nigeria where it is found at Porto Novo and in the Ouémé, Niger and Ogun River basins. It was first described by Belgian-British zoologist George Albert Boulenger in 1903, from specimens collected at Oguta, Nigeria, in the Niger River delta.
Synodontis ocellifer, known as the ocellated synodontis, is a species of upside-down catfish native to the rivers of northern and western Africa. It has been reported in 10 countries, including Burkina Faso, Cameroon, Chad, Gambia, Ghana, Guinea, Mali, Niger, Nigeria, and Senegal. It was first described by Belgian-British zoologist George Albert Boulenger in 1900, from specimens collected in Kunchow Creek, in Gambia. The species name ocellifer comes from the Latin word ocellus, meaning "eye", and the Latin word ifer, meaning "to carry", which refers to the black spots, possibly with white centers found on the sides.
Luciobarbus is a genus of ray-finned fishes in the family Cyprinidae. Its members are found in fresh and brackish waters of southern Europe, northern Africa, the wider Near East, the Aral and Caspian Seas, and rivers associated with these. Several species in the genus are threatened. Most species are fairly small to medium-sized cyprinids, but the genus also includes several members that can surpass 1 m (3.3 ft) in length and the largest, the mangar can reach 2.3 m (7.5 ft).
Tor tor, commonly known as the tor mahseer or tor barb, is a species of cyprinid fish found in fast-flowing rivers and streams with rocky bottoms in India, Bangladesh, Bhutan, Nepal, and Pakistan. It is a commercially important food and game fish.
