The Ash Meadows killifish is a species of killifish from the subfamily Empetrichthyinae, part of the family Goodeidae, which was first documented by C. H. Gilbert in 1893 and historically occupied numerous springs near Ash Meadows, Nye County, Nevada, United States. This species was last seen in 1948 and is believed to have gone extinct in the early 1950s, likely as a result of habitat alteration and competition with and predation by introduced crayfish Procambarus clarkii, mosquitofish, black mollies, and bullfrogs.
The sabrefin killifish, also known as the Santa Catarina sabrefin or Turner's gaucho, is a species of killifish in the family Rivulidae. It is endemic to Brazil. This species was described in 1974 with the type locality being a temporary pool between Criciuma and Tubarão in Santa Catarina state. The specific name honours the American ichthyologist, geneticist and ecologist Bruce J. Turner.
Campellolebias is a genus of killifish in the family Rivulidae from southeast Brazil. They are restricted to seasonal blackwater pools in forests in coastal parts of Santa Catarina and São Paulo states.
Gibbonsia is a genus of clinids native to the eastern Pacific ocean. The name of this genus honours the American naturalist, physician and founder member of the California Academy of Sciences, William P. Gibbons (1812-1897).
Scomberesox is a genus of sauries. It is one of two in the family Scomberesocidae. The generic name Scomberesox is a he name id a compound of scomber, which in turn is derived from the Greek skombros, meaning "mackerel", and the Latin esox meaning pike.
Cubanichthys is a small genus of pupfishes endemic to the Caribbean Islands of Cuba and Jamaica. The name of this genus is a compound of Cuba, where the genus was thought to be endemic until C. pengellyi was placed in the genus, and the Greek word for fish, ichthys.
The Yucatan flagfish, also known as the snakeskin killifish, is a species of pupfish from the family Cyprinodontidae. It is found in the coastal waters of the Yucatan Peninsula, in Mexico and Belize. This species grows to a length of 4 centimetres (1.6 in) TL and is found in the aquarium trade. This species was described by Carl Leavitt Hubbs in 1936 with the type locality given as 5 kilometres (3.1 mi) east of Progreso, Yucatán, Mexico. It is the only known member of its genus. The name of the genus commemorates the American ichthyologist Samuel Garman (1843-1927) who was working on a revision of his 1895 monograph on the Cyprinodontidae at the time of his death. It is sometimes treated as a junior synonym of Jordanella.
The pike topminnow, more commonly known as pike killifish and sometimes referred to as topminnow, is a species of poeciliid found from Mexico to Nicaragua. It has also been introduced to Florida, USA. It is the only known member of its genus. The pike topminnow was described in 1860 by Austrian ichthyologist Rudolf Kner, who gave the type locality as Belize, which is reflected in this species' specific name.
Carlhubbsia is a genus of poeciliids native to Guatemala and Mexico. The name of this genus honours the American ichthyologist Carl Leavitt Hubbs (1894-1979) who originally named the genus Allophallus, a name which was preoccupied by a genus of Diptera.
The Mexican rivulus is a species of killifish from the family Rivulidae which is endemic to Mexico where it is found in the Papaloapan and Coatzacoalcos River basins. This annual killifish grows to a total length of 4 cm (1.6 in). It is the only known species in its genus, but its exact taxonomic position remains uncertain, as it has not been included in any phylogenetic study. This species was described by Robert Rush Miller and Carl Leavitt Hubbs as Rivulus robustus in 1974, it was reclassified in the monotypic genus Millerichthys in 1995, the generic name honouring Robert Rush Miller.
Rachovia is a genus of killifish from the family Rivulidae the species of which are endemic to the Orinoco, Maracaibo and Magdalena basins in Colombia and Venezuela, where they live in small temporary waters like ponds. They are small annual killifish that reach up to 6 cm (2.4 in) in total length. The name of this genus honours the German aquarist Arthur Rachow (1884-1960) who sent fish specimens to George S. Myers.
Renova oscari is a species of killifish from the family Rivulidae which is endemic to the Orinoco River basin of Venezuela. This annual killifish grows to a standard length of 4.7 cm (1.9 in). This species is the only known member of its genus. It is found in the aquarium trade. This species was described in 1995 by Jamie E. Thomerson and Donald Charles Taphorn Baechle with the type locality given as the southwestern edge of Isla Raton in the vicinity of the village of Sabanita, upper Río Orinoco. The specific name honours Oscar León Mata (1964-2018), a killifish collector, environmental engineer and curator of fish at Museo de Ciencias Naturales in Guanare.
Lucania goodei, the bluefin killifish, is a small species of fish in the topminnow family Fundulidae. It is native to the southeastern United States, but has been introduced to California, Texas and North Carolina. Other common names for the fish include Florida blue dace.
Mucurilebias leitaoi is a species of rivulid killifish endemic to Brazil where it occurs, or formerly occurred, in the basin of the Mucuri River. This species can reach a length of 3 centimetres (1.2 in) TL. This species has not been seen since the original series of types was collected in 1988 and it may have become extinct due to the extensive habitat loss in the region. This species is the only known member of its genus, but it was formerly included in Leptolebias. The specific name of this fish honours the Brazilian ichthyologist and herpetologist Antenor Leitão de Carvalho (1910-1985).
Simpsonichthys constanciae is a species of killifish from the family Rivulidae that is endemic to Brazil. It is restricted to temporary freshwater habitats in the São João basin in Rio de Janeiro, while all other species in the genus are from Bahia. It is a small killifish that is up to 6 cm (2.4 in) in total length.
Tlaloc is a genus of fish in the family Profundulidae endemic to Mexico, Guatemala and Honduras. The genus is not, however, recognised by Fishbase or in the 5th Edition of Fishes of the World. The genus is named for Tlaloc the water god of the Aztecs.
The Seminole killifish is a fish of the genus Fundulus, endemic to the U.S. state of Florida.
Brockius is a genus of labrisomid blennies from the waters of the eastern Pacific and the western Atlantic where they are associated with reefs and seaweed-covered rocks.
Aapticheilichthys is a monotypic genus of killifish from the family Poeciliidae, the sole member being Aapticheilichthys websteri. A. websteri was found by the American fish breeder Kent Webster after which the species was named. The type locality was Akaka Camp on the western coastal plain of Gabon.
Epiplatys grahami is a species of fish in the family Nothobranchiidae, an African rivuline, which is native to the fresh water habitats in southeastern Benin, through southern Nigeria and Cameroon, to northwestern Equatorial Guinea. This species reaches a length of 7.0 cm (2.8 in).
