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 Panama ghost catshark is a lesser known catshark of the family Scyliorhinidae. This catshark is only found off Panama, between 9°N and 2°N. The reproduction of the Panama ghost shark is oviparous.
Parachromis dovii, the guapote, rainbow bass, or wolf cichlid, is a species of cichlid native to Central America where it occurs in lakes, rivers and streams in Honduras, Nicaragua and Costa Rica. It is one of the largest cichlids, reaching up to 14 kg (31 lb) in weight and 80 cm (2.6 ft) long. A strongly predatory species, it mostly feeds on other fish. P. dovii is important to local commercial fisheries, sought after as a gamefish, and sometimes kept in aquariums.
Nothobranchius foerschi is a species of killifish in the family Nothobranchiidae. It is endemic to Tanzania. Its natural habitat is probably temporary pools. The specific name honours the German physician and aquaris Walter Foersch (1932-1993), who was an expert in killifish and was one of the first people to keep and breed this species.
Nothobranchius janpapi is a species of killifish in the family Nothobranchiidae. It is endemic to the Ruvu and Rufiji rivers in eastern Tanzania. Its natural habitats are small pools and ponds situated on floodplains. The specific name honours the Dutch aquarist Jan Pap, who first discovered this species in 1975 and sent examples back to the Netherlands.
Nothobranchius korthausae is a species of killifish in the family Nothobranchiidae. It is endemic to Mafia Island in Tanzania. Its natural habitat is pools, ditches and small streams. The specific name of this species honours the German aquarist Edith Korthaus who collected the type.
Nothobranchius palmqvisti is a species of killifish in the family Nothobranchiidae. It is found in Kenya and Tanzania. Its natural habitats are swamps and intermittent freshwater marshes. This species was described as Fundulus palmqvisti by Einar Lönnberg in 1907 with the type locality being Tanga in the Usambara Mountains of north eastern Tanzania, the type being collected on the 1905-06 Sjöstedts Kilimandjaro-Meru Expedition. The specific name honours the patron of that expedition, Gustaf Palmqvist.
The blue notho, or Patrizi's notho is a species of killifish in the family Nothobranchiidae. It is found in Kenya and Somalia. Its natural habitat is running water. The males are usually around 5.0 centimetres (2.0 in). In the aquarium the females lay their eggs on bottom peat. This species was described as Fundulus patrizii by Decio Vinciguerra in 1927 with a type locality of the Harenaga swamps, near mouth of the Juba River in southern Somalia. Vinciguerra gave this fish the specific name of patrizii in honour of the collector of the type Saverio Patrizi Naro Montoro (1902-1957), an Italian explorer, zoologist and speleologist.
Nothobranchius steinforti is a species of killifish in the family Nothobranchiidae. It is endemic to Upper Wami River drainage, Tanzania. Its natural habitat is intermittent freshwater marshes, pools and rice fields. This species was described in 1977 by Rudolf Hans Wildekamp with the type locality given as "8 kilometers from Kimamba, Tanzania". The specific name honours the Dutch aquarist Theo Steinfort who helped collect the type and bred this species in captivity, making it available to other killifish hobbyists.
The Mnanzini nothobranch is a species of killifish in the family Nothobranchiidae. It is endemic to Kenya where it occurs on the floodplains of the lower Tana River system where it is found in temporary waterbodies and connecting streams. The specific name honours the German aquarist Manfred Willert who helped to collect the type and who donated it to Rudolf Hans Wildekamp who describe the species in 1992.
Pachypanchax sparksorum is a species of Aplocheilid killifish endemic to Madagascar where it is found in the Anjingo River and streams feeding into the Ankofia River. Its natural habitat is rivers. The specific name of this fish honours the ichthyologist John S. Sparks of the United States National Museum and his wife Karen Riseng Sparks, they collected many of the type series.
Pachypanchax arnoulti is a species of aplocheilid killifish endemic to Madagascar. Its natural habitat is rivers and lakes. It is threatened by habitat loss and invasive species. The specific name of this fish honours the French ichthyologist and herpetologist Jacques Arnoult (1914-1995) in recognition of his contributions to the knowledge of Madagascar's fish fauna. It was described by Paul V. Loiselle in 2006 with the type locality given as "Swamp draining into tributary stream of Ikopa River, flowing parallel to RN-4 at Antanimbray village, 17°10'79"S, 46°50'97"E, Betsiboka River drainage, Madagascar, elevation 246 meters".
Nothobranchius rachovii, the bluefin notho, is a species of freshwater annual killifish from Mozambique. It can grow up to 6 cm (2.4"). It is popular among killifish enthusiasts, who raise them from eggs in aquaria.
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.
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.
The emerald aphyosemion is a species of killifish, endemic to the lower Cross River basin in Nigeria. It is a coastal rainforest fish which lives in small streams and ponds. It prefers a temperature of around 75 °F (24 °C), and a slightly acidic pH around 6–7. The specific name honours the Danish count, army colonel, explorer and ichthyologist Jørgen J. Scheel (1916–1989).
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.
The Dead Sea toothcarp is a subspecies of the Arabian toothcarp that is endemic to the Dead Sea basin, although molecular evidence suggests that it should be regarded as a species. It is threatened by water fluctuation, and the introduction of cichlids and Gambusia. The sub-specific name of this fish honours the Scottish surgeon and naturalist John Richardson (naturalist) (1787-1865) who first reported killifish in the Dead Sea basin. The Dead Sea toothcarp -- has been on the red list of the International Union for Conversation of Nature since 2014.
The Seminole killifish is a fish of the genus Fundulus, endemic to the U.S. state of Florida.
