A tuna is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae (mackerel) family. The Thunnini comprise 17 species across five genera, the sizes of which vary greatly, ranging from the bullet tuna up to the Atlantic bluefin tuna, which averages 2 m (6.6 ft) and is believed to live up to 50 years.
Mackerel is a common name applied to a number of different species of pelagic fish, mostly from the family Scombridae. They are found in both temperate and tropical seas, mostly living along the coast or offshore in the oceanic environment.
Herring are various species of forage fish, mostly belonging to the family Clupeidae.
Sardine and pilchard are common names for various species of small, oily forage fish in the herring suborder Clupeoidei. The term 'sardine' was first used in English during the early 15th century; a somewhat dubious etymology says it comes from the Italian island of Sardinia, around which sardines were once supposedly abundant.
Sprat is the common name applied to a group of forage fish belonging to the genus Sprattus in the family Clupeidae. The term also is applied to a number of other small sprat-like forage fish. Like most forage fishes, sprats are highly active, small, oily fish. They travel in large schools with other fish and swim continuously throughout the day.
The billfish are a group of saltwater predatory fish characterised by prominent pointed bills (rostra), and by their large size; some are longer than 4 m (13 ft). Extant billfish include sailfish and marlin, which make up the family Istiophoridae; and swordfish, sole member of the family Xiphiidae. They are often apex predators which feed on a wide variety of smaller fish, crustaceans and cephalopods. These two families are sometimes classified as belonging to the order Istiophoriformes, a group which originated around 71 million years ago in the Late Cretaceous, with the two families diverging around 15 million years ago in the Late Miocene. However, they are also classified as being closely related to the mackerels and tuna within the suborder Scombroidei of the order Perciformes. However, the 5th edition of the Fishes of the World does recognise the Istiophoriformes as a valid order, albeit including the Sphyraenidae, the barracudas.
The onefin catshark is a species of shark belonging to the family Pentanchidae, the deepwater catsharks. It is the only member of its genus, Pentanchus. It is known from two specimens collected from the Tablas Strait and Mindanao Sea off the Philippines in the Western Central Pacific. It is classified as harmless to humans and of least concern to the IUCN redlist.
The narrowmouthed catshark is a coloured catshark beloning to the family Atelomycteridae, found from central Chile around the Straits of Magellan, to Argentina between latitudes 23° S and 56° S, at depths down to about 180 m (600 ft) in the Atlantic Ocean and about 360 m (1,200 ft) in the Pacific. It can grow to a length of up to 70 cm (28 in). The reproduction of this catshark is oviparous.
The spotless catshark is a species of shark belonging to the family Pentanchidae, the deepwater catsharks> this species is found in the South China Sea at depths between 535 and 1,020 m on the continental slope. Its length is up to 71 centimetres (28 in).
An anchovy is a small, common forage fish of the family Engraulidae. Most species are found in marine waters, but several will enter brackish water, and some in South America are restricted to fresh water.
Acanthocobitis pavonacea, also known as the spearfin loach, is a species of ray-finned fish belonging to the family Nemacheilidae, the stone loaches. This species is found in the Brahmaputra River of Assam. This is one of two species in the genus Acanthocobitis, alongside the type species, A. longipinnis. A. longipennis was treated as synonym of this species but in 2021 Maurice Kottelat and Waikhom Vishwanath published a paper that argued that A. longipennis was a valid species and that it was one of two species ofloach in the genus Acanthocobitis, alongside A. pavonacea, with the other species being classified in the genus Paracanthocobitis. This species is the type species of the genus Acanthocobitis.
Pseudocrossocheilus is a genus of cyprinid fish endemic to China. There are currently five recognized species in this genus.
Bidenichthys beeblebroxi is a species of common reef fish of the family Bythitidae. The species is found in the coastal waters off North Island and northern South Island, New Zealand. It is a common, uniformly gray-brown fish, ranging from SL 6.5–9.5 centimetres long in one study, found in holes beneath rocks and boulders in kelp forest and other reef habitats from the surface down to depths of 30 metres (98 ft). The species was described by Chris D. Paulin in 1995. IUCN and the Catalog of Fishes consider it a synonym of Bidenichthys consobrinus.
Pseudocrossocheilus bamaensis is a species of freshwater ray-finned fish belonging to the family Cyprinidae, the family which includes the carps, barbs, minnows and related fishes. This fish is endemic to China where it occurs in the Hongshui River, as well as its tributary the Beipanjiang River, in Guangxi and Guizhou. Here it is found in crevices and caves in rocks emerging in the morinings and evenings to feed in the Spring and Summer, remaining in its rock shleters during the winter. This fish has a maximum published total length of 21.5 cm (8.5 in)>
Pseudocrossocheilus longibullus is a species of freshwater ray-finned fish belonging to the family Cyprinidae, the family which includes the carps, barbs, minnows and related fishes. This species is only known from its type locality, the Sancha River which is a tributary of the Xi River at Dongtanxiang, Libo County in Guizhou.
Pseudocrossocheilus nigrovittatus is a species of freshwater ray-finned fish belonging to the family Cyprinidae, the family which includes the carps, barbs, minnows and related fishes. This species is found in fast flowing rivers in the middle Pearl River basin in Guizhou.
Pseudocrossocheilus papillolabrus is a species of freshwater ray-finned fish belonging to the family Cyprinidae. This species is found in rivers and fast flowing mountain streams in Guizhou.
Pseudocrossocheilus tridentis is a species of freshwater ray-finned fish belonging to the family Cyprinidae, the family which includes the carps, barbs, minnows and related fishes. This fish has a wide distribution in the middle and lower Nanpan River in Yunnan and Guizhou. P. tridentis is found in the lower layers of fast-flowing rivers or montane streams>
The corsula is a species of ray-finned fish from the mullet family Mugilidae. It is found in the rivers and estuaries of southern Asia, in India, Bangladesh, Nepal and Myanmar. It is presently regarded as the only species in the monospecific genus Rhinomugil.
