Barbodes kuchingensis is a species of cyprinid fish native to Indonesia where it occurs in the Kapuas River basin and Malaysia where it is known from Sarawak. It prefers sandy or rocky pools in clear foothill and forest streams.

The barnacle blenny is a species of chaenopsid blenny found in coral reefs in the eastern central Pacific ocean. It can reach a maximum length of 6 cm (2.4 in) TL. This species feeds primarily on zooplankton.

Chlorurus bleekeri, known commonly as Bleeker's parrotfish , is a species of marine fish in the family Scaridae.

The clubhead blenny or clubhead barnacle blenny, is native to the eastern Pacific Ocean, where it occurs from the Gulf of California along the coast of Mexico south to Colombia and Ecuador.

Corydoras griseus, the gray corydoras, is a small catfish of the corydoras genus. Its natural range is in the Brazilian Amazon region in small tributary streams.

Corydoras septentrionalis is a tropical freshwater fish belonging to the Corydoradinae sub-family of the family Callichthyidae. It originates in inland waters in South America, and is found in the Orinoco River basin in Colombia and Venezuela.

Desmopuntius rhomboocellatus, the snakeskin barb, is a species of cyprinid fish endemic to Borneo where it is found in western and central Kalimantan. This species reaches a length of 8.8 centimetres (3.5 in) TL. The specific rhomboocellatus refers to the rhomboid ocellus markings of the flanks, which sometimes gives rise to the common name "Snakeskin barb".

The Gulf wobbegong or banded wobbegong is a species of carpet shark in the family Orectolobidae, found in southern Australia between Southport, Queensland and Norwegian Bay, Western Australia.

The Highland splitfin is a species of splitfin endemic to Mexico where it is found in the Lerma River basin. This species grows to a length of 5 centimetres (2.0 in) TL. It is the only known member of its genus, although some authorities have Hubbina as a subgenus of Girardinichthys and add Girardinichthys ireneae to the subgenus, even treating this taxon as a synonym of G. ireneae. This species was described by Don Fernando de Buen y Lozano in 1940 with the type locality given as Cointzio, Michoacán. The name of the genus honours the American ichthyologist Carl Leavitt Hubbs (1894-1979) while the specific name honours Clarence Lester Turner (1890-1969), thus honouring two ichthyologists who worked on a review of the Goodeidae in 1939.

The Highland splitfin is a species of splitfin endemic to Mexico where it is found in the Lerma River basin. This species grows to a length of 5 centimetres (2.0 in) TL. It is the only known member of its genus, although some authorities have Hubbina as a subgenus of Girardinichthys and add Girardinichthys ireneae to the subgenus, even treating this taxon as a synonym of G. ireneae. This species was described by Don Fernando de Buen y Lozano in 1940 with the type locality given as Cointzio, Michoacán. The name of the genus honours the American ichthyologist Carl Leavitt Hubbs (1894-1979) while the specific name honours Clarence Lester Turner (1890-1969), thus honouring two ichthyologists who worked on a review of the Goodeidae in 1939.

Koumansetta rainfordi, the old glory or Court Jester goby, is a species of goby native to tropical reefs of the western Pacific Ocean where it occurs at depths of from 2 to 30 metres. This species can reach a length of 8.5 centimetres (3.3 in) SL. It can also be found in the aquarium trade. The specific name honours the viticulturalist E. H. Rainford, of the Queensland Agricultural Department, who also collected specimens for the Australian Museum, and in 1924 he collected specimens of this species.

Lampreys are an ancient extant lineage of jawless fish of the order Petromyzontiformes, placed in the superclass Cyclostomata. The adult lamprey may be characterized by a toothed, funnel-like sucking mouth. The common name "lamprey" is probably derived from Latin lampetra, which may mean "stone licker", though the etymology is uncertain. The plural form lamprey is sometimes seen.

The Laotian shad is a species of fish in the family Clupeidae. It is found in the Mekong River drainage in Cambodia, Laos, Thailand, and Vietnam.

Nannoperca oxleyana, commonly known as the Oxleyan pygmy perch, is a species of temperate perch endemic to Australia. It occurs in the coastal drainages of eastern Australia, being found in dune lakes, ponds, creeks, and swamps with plentiful vegetation to provide shelter. The waters in which it lives are often dark and acidic. It preys upon aquatic insects and their larvae, as well as planktonic crustaceans and even algae. This species can reach 7.5 cm (3.0 in) SL, though most do not exceed 4 cm (1.6 in). It can also be found in the aquarium trade.

Ogcocephalus parvus, the roughback batfish, is a species of batfish found along the coast of the western Atlantic Ocean from North Carolina in the United States to Brazil. This species grows to a length of 10 centimetres (3.9 in) TL.

Pangio semicincta is a species of cobitid loach in the genus Pangio found in the Malay Peninsula, Borneo, and Sumatra. It is a very popular fish in the aquarium trade, however it is often confused for and mislabeled as Pangio kuhlii, which is rarely if ever found in the aquarium trade due to it being endemic to the island of Java, where collection for the fish trade is rare.

Parascombrops spinosus, the keelcheek bass, is a species of fish in the family Acropomatidae, the lanternbellies. It is native to the western Atlantic Ocean from Canada to Uruguay.

The plainfin sole is a sole of the genus Achirus native to the western Atlantic in the Caribbean Sea and along the coast of the Americas from Belize to Santa Catarina, Brazil. This demersal species inhabits soft bottoms near the shores or estuaries. It growth up to 18.7 cm (7.4 in).

The Redeye bass is a species of freshwater fish in the sunfish family (Centrarchidae) native to the Coosa River system of Georgia, Alabama. The waters it is normally found in are cool streams and rivers in the foothills of mountains.

The scalloped bonnethead is a rare, little-known species of hammerhead shark, and part of the family Sphyrnidae. Its other common names include the mallethead shark and the crown shark. It is found in tropical and subtropical waters in the eastern Pacific Ocean, from Mexico to Peru, and possibly as far north as the Gulf of California. It frequents inshore habitats over soft bottoms to a depth of 100 m, and also enters mangroves and estuaries.

The scoophead 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 the Gulf of California to Ecuador, and probably northern Peru, as well. It is found in shallow, inshore habitats.

Stephanolepis diaspros, commonly known as the reticulated filefish or the reticulated leatherjacket, is a species of bony fish, a ray-finned fish in the family Monacanthidae. Its natural range is the western Indian Ocean but it is also one of the species which has colonised the Mediterraean through the Suez Canal by Lessepsian migration from the Red Sea.