Ambloplites is a genus of North American freshwater fish in the sunfish family (Centrarchidae) of order Perciformes. The type species is A. rupestris, the rock bass, and the species of this genus are known collectively as the rock basses.
Characodon is a genus of splitfins endemic to north–central Mexico. Two of the species are highly threatened and restricted to pools, ponds and springs in the upper San Pedro Mezquital River basin in Durango. The third species, C. garmani, was restricted to springs near Parras in Coahuila, but it became extinct when they dried out.
Girardinichthys is a genus of splitfins that are endemic to Mexico. These highly threatened fish are native to the upper Lerma and Balsas basins, as well as water systems in the Valley of Mexico. Through man-made channels G. viviparus has been able to spread to the upper Pánuco River basin. These small fish reach up to 6.5 cm (2.6 in) in length. The name of this genus honours the American herpetologist and ichthyologist Charles Girard (1822-1895).
Goodea is a genus of splitfins that are endemic to Mexico. They are found in a wide range of habitats in several river basins that originate in the Central Plateau, such as Pánuco, Lerma–Chapala–Grande de Santiago and Balsas. Overall this genus is among the most widespread and successful splitfins, although they also have declined and the relatively restricted G. gracilis is considered vulnerable by the IUCN. This genus includes the largests splitfins, reaching a standard length of up to 20 cm (8 in). They are primarily herbivores, but also take small organisms like tiny crustaceans and snails. The is named in honour of the American ichthyologist George Brown Goode (1851-1896).
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 Balsas splitfin is a species of fish in the family Goodeidae. It is endemic to Mexico where it occurs in the states of Morelos and Michoacán. This fish was formally described as Goodea whitei by Seth Eugene Meek in 1904 with the type locality given as Yautepec in Morelos. The specific name honours E. A. White of the Interoceanic Railway of Mexico for his interest in and support of Meek's work.
Ilyodon is a genus of splitfins found in the Pacific slope river basins of Balsas, Tuxpan (Coahuayana), Purificación, Chacala (Marabasco), Armería and Ameca in western Mexico.
Nothobranchius robustus, the red Victoria nothobranch, is a species of killifish in the family) Nothobranchiidae. It is found in the Lake Victoria basin, the Lake Albert basin, the Sio River and near Ahero in Kenya, Tanzania, and Uganda. Its natural habitats are rivers, intermittent rivers, swamps, and intermittent freshwater marshes. This species was described in 1935 by Ernst Ahl from types collected in northwestern Tanzania.
The graceful priapella, also known by its original Spanish name guayacon ojiazul, is a species of freshwater fish within the family Poeciliidae. It is considered to be data deficient. It is endemic to a small part of central Veracruz in Mexico. It has not been recorded recently and is thought most likely to be extinct, however, the IUCN states that there is an outside chance that the species clings on in a hereto unsurveyed part of its known range and so list it as Data Deficient. The American ichthyologist Seth Eugene Meek described this fish as Gambusia bonita in 1904 with the type locality given as Río Tonto at Refugio, Veracruz, Mexico. It is the type species of the genus Priapella.
The relict splitfin is a species of splitfin endemic to the Pánuco River system in Mexico. It feeds on algae. This species grows to up to 6 centimetres (2.4 in) in length. It is found in the aquarium trade. It is the only known member of its genus.
Xenotoca is a genus of fish in the family Goodeidae from Mexico, where various species are found in a wide range of habitats, from rivers and creeks to pools and lakes, in the Lerma–Grande de Santiago, Panuco, Cuitzeo and other basins of the Mesa Central. While no goodeid is a very common aquarium fish, the redtail splitfin, is one of the most common aquarium goodeids; its bright colors offset its reputation for being aggressive towards and occasionally even killing tankmates. Similarly to X. eiseni, two species described in 2016 have males with red-orange tails, but this feature is not shared by the remaining members of the genus. All Xenotoca species are relatively small, reaching up to 9 cm (4 in) in standard length.
Ilyodon lennoni, the Chacambero splitfin, is a species of splitfin endemic to Mexico. This species grows to a length of 7 centimetres (2.8 in) TL. It has been considered to be a junior synonym of I. whitei, but is currently considered to be a valid species by Fishbase and the California Academy of Sciences. The specific name honours John Lennon (1940-1980), the singer and guitarist with The Beatles.
Bangana is a genus of fish in the family Cyprinidae, the carps and minnows. It is distributed across much of southern and eastern Asia. Species live mainly in the flowing waters of tropical and subtropical rivers.
Chapalichthys is a genus of splitfins that are endemic to west-central Mexico, where found in lakes, pools, ponds and channels in the Lerma–Chapala–Grande de Santiago and Balsas basins. Chapalichthys reach up to 9.3 cm (3.7 in) in standard length. Despite this relatively small size, they are often caught as food in Lake Chapala.
Zoogoneticus is a genus of splitfins that are endemic to the Lerma–Chapala–Grande de Santiago, Armería, Ameca, Cuitzeo and Zacapu basins in west-central Mexico. They inhabit lakes, streams, ponds, canals and ditches, and prefer shallow waters with no or only a moderate current. They are predators that feed on small invertebrates. Zoogoneticus are fairly small fish, reaching up to 8 cm (3 in) in total length.
Belonion apodion is one of two freshwater needlefish in the genus Belonion, which is in the family Belonidae. It is native to South America where it is found in the basins of the Guaporè and Madeira Rivers. This species was described by Bruce Collette in 1966 with the type locality given as Laguna 3 kilometers southwest of Costa Marques on the Rio Guapore in Bolivia at border between Brazil and Bolivia. It is the type species of the genus Belonion.
Pseudocaranx is a genus of ray-finned fishes from the family Carangidae, the jacks, trevallies, scads, and pompanos. They occur in the western Atlantic Ocean and the Indo-Pacific.
Rasboroides pallidus is a species of freshwater cyprinid fish endemic to southwestern Sri Lanka. It is only known from shallow, slow-flowing streams in the basins of the Kalu River, Bentara River, Gin River, Polathu-Modera River and Nilwala River. It has been introduced to the Mahaweli and Walawe River basins, and is overall less threatened than the related R. vaterifloris.
The Nile killifish, also known as the Nile lampeye, is a species of killifish from the family Poeciliidae. It is found in the White Nile drainage in Sudan, the Nile Delta in Egypt, the Wembere and Malagarasi Rivers in Tanzania and in the Lake Victoria basin in Uganda and Tanzania. However, it is thought to have been extirpated from Egypt, the introduction of alien poecilid fish, agricultural pollution and increasing salinity are all thought to have contributed to its local extinction in the Nile Delta.
The licorice gourami is a species of freshwater ray-finned fish from the subfamily Macropodusinae, part of the family Osphronemidae, the gouramis. It is endemic to Bangka in Indonesia where it is found in the slow, flowing streams with black waters associated with peat swamp forests. This species was formally described by the Dutch ichthyologist Pieter Bleeker as Osphromenus deissneri in 1859 with the type locality given as Sungai Baturussa basin at 8 kilometres from Pudingbesar on the road to Kampong Simpan, Bangka. It is the type species of the genus Parosphromenus. The specific name honours F. H. Deissner, a military health officer, who sent a collection of specimens of fishes from Bangka to Bleeker which included the type of this species.
