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The Living Encyclopedia
Explore our comprehensive database of reptiles, amphibians, fish, and invertebrates. Discover detailed care guides, morph varieties, and community setups.
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Celebes Rainbowfish
Marosatherina ladigesi
The Celebes rainbowfish is a species of sailfin silverside endemic to Sulawesi in Indonesia. It is the only known member of its genus.
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Madagascar Rainbowfish
Bedotia geayi
Bedotiidae are a family of fish in the order Atheriniformes. They are closely related to the Australian rainbowfish family Melanotaeniidae, and were formerly placed in it as a subfamily, but are now considered a distinct family. They are commonly known as the Madagascar rainbowfish, Madagascan rainbowfish, or Malagasy rainbowfish due to their endemism to Madagascar. It includes two genera, Bedotia and Rheocles.
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Steel Blue Killifish
Fundulopanchax gardneri nigerianus
Fundulopanchax is a genus of killifish living in near-coastal fresh water streams and lakes in Western Africa. All species were previously biologically classified as members of the genus Aphyosemion, with the exception of Fundulopanchax avichang, F. gresensi and F. kamdemi, which were all scientifically described after the major revision of the Aphyosemion complex.
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Red Chin Killifish
Epiplatys dageti
Red Chin Killifish (Epiplatys dageti)
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Guenther's Killifish
Nothobranchius guentheri
The redtail notho is a species of killifish in the family Nothobranchiidae. It is endemic to Zanzibar. Its natural habitats are intermittent rivers and intermittent freshwater marshes. The redtail notho eats mosquito larvae and other planktonic creatures. Scientists are looking at introducing the species elsewhere in Africa to help with malaria prevention.
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EgGers's Killifish
Nothobranchius eggersi
The orchid nothobranch is a species of killifish in the family Nothobranchiidae. It is endemic to the lower basin of the Rufiji River in Tanzania. Its natural habitat is temporary pools and swamps. This species is found in both a blue and red form. This species was described in 1982 by Lothar Seegers with the type biology given as the Rufiji River near Utete, Rufiji District of Pwani Region in Tanzania. The specific name honours Seegers companion on two expeditions, the German aquarist Gerd Eggers.
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Korthaus's Killifish
Nothobranchius korthausae
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.
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Foersch's Killifish
Nothobranchius foerschi
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.
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Palmquist's Killifish
Nothobranchius palmqvisti
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.
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Orange-Throated Killifish
Nothobranchius fuscotaeniatus
Nothobranchius, known as nothobranchs or simply nothos, is a genus of small, freshwater killifish, classified in the family Nothobranchiidae in the order Cyprinodontiformes. There are about a hundred species in the genus, many with very small distributions. They are primarily native to East Africa from Sudan to northern South Africa, whereas a dozen species are found in the upper Congo River Basin, with the greatest species richness being in Tanzania.
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Kafue Killifish
Nothobranchius kafuensis
Nothobranchius kafuensis, known as the Caprivi killifish or Kafue killifish, is a species of killifish in the family Nothobranchiidae. This killifish is found in temporary pools, swamps and ditches in the floodplains of the Kafue and Upper Zambezi rivers in western Zambia and the Caprivi Strip in Namibia.
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Norman's Lampeye
Poropanchax normani
Poropanchax normani, also known as the Norman's lampeye, is a species of procatopodine fish which is native to Africa. It belongs to the group of African lampeyes and livebearers (Procatopodidae).
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Tanganyika Killifish
Lamprichthys tanganicanus
The Tanganyika killifish is a species of procatopodid endemic to Lake Tanganyika, where it forms large schools, mainly close to rocky shores but also pelagically off shore. This species grows to a length of 15 centimetres (5.9 in) SL. It is an egglayer with external fertilization, and deposits its eggs in narrow crevices. It is fished commercially for food, and also for the aquarium trade. It has been introduced to Lake Kivu.
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Diamond Killifish
Adinia xenica
The diamond killifish is a species of North American killifish found in salt marshes, hypersaline flats and mangrove along the Gulf Coast of the United States. This species grows to a length of 6 cm (2.4 in). It is found in the aquarium trade. It was previously recognized as, Adinia xenica, the only known member of the genus Adinia. Nucleotide analyses has reevaluated the phylogeny of the Funduliidae and placed the diamond killifish into the Fundulus genus.
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Rainwater Killifish
Lucania parva
The rainwater killifish is a small silvery fish with yellow flashes and diamond shaped scales that is widespread from Cape Cod, Massachusetts, through to Tampico, Mexico. It is commonly found in large numbers in fresh to brackish estuarine environments. It feeds on tiny crustaceans, mosquito larvae, small worms, and mollusks. It can reach up to 62 mm.
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Bluefin Killifish
Lucania goodei
Bluefin Killifish (Lucania goodei)
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Golden Topminnow
Fundulus chrysotus
The golden topminnow is a fish of the genus Fundulus and is a United States native fish mostly distributed throughout the southeast, ranging from Kentucky and Ohio south into Florida. Although it has such a wide distribution throughout the south, the habitats and micro-habitats that it occupies do not differ much from one area of distribution to others. The golden topminnow is a small surface feeding fish that tends to reproduce late in the spring season and on into the early parts of the summer, and although the fry reach maturity fairly quickly the longevity of the golden topminnow is quite short. Because the golden topminnow is lower in the trophic level and is a small fish, it primarily feeds on small and/or drifting organisms at, or near the surface of, vegetated areas. This particular topminnow is not currently listed as an endangered species, nor does it have any particular type of management plan.
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Mummichog
Fundulus heteroclitus
The mummichog is a small killifish found along the Atlantic coast of the United States and Canada. Also known as Atlantic killifish, mummies, gudgeons, and mud minnows, these fish inhabit brackish and coastal waters including estuaries and salt marshes. The species is noted for its hardiness and ability to tolerate highly variable salinity, temperature fluctuations from 6 to 35 °C, very low oxygen levels, and heavily polluted ecosystems. As a result, the mummichog is a popular research subject in embryological, physiological, and toxicological studies. It is also the first fish ever sent to space, aboard Skylab in 1973.
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Striped Killifish
Fundulus majalis
The striped killifish, also called the striped mummichog, is a North American species of fundulid killifish. It lives in salt and brackish waters in shallow coastal regions from New Hampshire to Florida, and in the northern Gulf of Mexico.
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Banded Killifish
Fundulus diaphanus
The banded killifish is a North American species of temperate freshwater killifish belonging to the genus Fundulus of the family Fundulidae. Its natural geographic range extends from Newfoundland to South Carolina, and west to Minnesota, including the Great Lakes drainages. This species is the only freshwater killifish found in the northeastern United States. While it is primarily a freshwater species, it can occasionally be found in brackish water.
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