Variable platyfish | |
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An ornamental strain male | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Cyprinodontiformes |
Family: | Poeciliidae |
Genus: | Xiphophorus |
Species: | X. variatus |
Binomial name | |
Xiphophorus variatus (Meek, 1904) | |
Synonyms [2] | |
Platypoecilus variatusMeek, 1904 |
The variable platyfish (Xiphophorus variatus), also known as variatus platy or variegated platy, is a species of freshwater fish in family Poecilidae of order Cyprinodontiformes. A livebearer, it is native to southern Tamaulipas and northern Veracruz states in northeastern Mexico. It is a popular fish in the aquarium trade due to its prolific breeding, as are hybrids with other members of its genus, most notably the southern platyfish.
The variable platyfish grows to a maximum overall length of 7.0 cm (2.8 in). In the wild, they are olive in colour with black marbling or spots on the side of the caudal peduncle. Large males show blackish blotches on the dorsal fin. Unlike some other members of the genus, X. variatus has no claw at the tip of the fifth anal fin ray. The fourth pectoral ray shows well-developed serrae (saw-like notches). They typically have 20 to 24 lateral scales, 10 to 12 dorsal rays and two rows of jaw teeth. [3] Males exhibit a more pointed or "needle-like" anal fin whereas the female have a more triangular anal fin.
The variable platyfish is endemic to the Atlantic slope of Mexico from southern Tamaulipas south to northern Veracruz. It is considered uncommon across its range. The species has also been introduced and become established in a number of locales, largely due to releases related to the aquariums trade. In the United States, they have been established in canals along the eastern shore of Tampa Bay, Florida, as well as in Gainesville. They are also naturalised in springs in the counties of Beaverhead, Granite and Madison in Montana. [3] [4] The species has been spread to a number of other countries outside of its range, including Colombia, Singapore, and Hong Kong, [1] the latter of which reports a negative impact on native species due to its prodigious breeding.
The fish's habitats include slow-moving waters of vegetated canals, ditches, and warm springs. [3] Omnivorous, its diet includes both plants and small crustaceans, insects, and annelid worms.
The variable platyfish is bred commercially for the aquarium hobby. It is popular due to its often colourful and variable patterns and its ability to survive in cooler waters than other fish; it can comfortably live at temperatures between 16 and 24 °C (61 and 75 °F). The species has also been used in genetic research.
The southern platyfish, common platy, or moonfish is a species of freshwater fish in family Poeciliidae of order Cyprinodontiformes. A live-bearer, it is closely related to the green swordtail and can interbreed with it. It is native to an area of North and Central America stretching from Veracruz, Mexico, to northern Belize.
The Jack Dempsey is a species of cichlid fish that is native to freshwater habitats from southern Mexico to Honduras, but also introduced elsewhere. Its common name refers to its aggressive nature and strong facial features, likened to that of the famous 1920s boxer Jack Dempsey.
The black phantom tetra, or simply phantom tetra, is a small freshwater fish of the characin family (Characidae) of order Characiformes. It is native to the upper Paraguay basin and upper Madeira basin in Brazil and Bolivia. It is commonly seen in the aquarium trade.
Xiphophorus is a genus of euryhaline and freshwater fishes in the family Poeciliidae of order Cyprinodontiformes, native to Mexico and northern Central America. The many Xiphophorus species are all known as platyfish and swordtails. Platyfish formerly were classified in another genus, Platypoecilia, which is now obsolete. The type species is X. hellerii, the green swordtail. Like most other new world Poeciliids, platies and swordtails are live-bearers that use internal fertilization and give birth to live young instead of laying eggs like the bulk of the world's fishes. The name Xiphophorus derives from the Greek words ξίφος (dagger) and φόρος (bearer), referring to the gonopodium on the males. All are relatively small fishes, which reach a maximum length of 3.5–16 cm (1.4–6.3 in) depending on the exact species involved.
Protomelas taeniolatus is a Haplochromine cichlid endemic to Lake Malawi in Eastern Africa. The fish is popular in the aquarium hobby due to the bright rainbow-like colors of adult males and its relatively peaceful temperament. Juvenile and female P. taeniolatus, like many Haplochromines, do not display bright coloration.
The Monterrey platyfish is a species of freshwater fish in family Poecilidae. A live-bearer, it was native to a very small section of the San Juan River system in the vicinity of the city of Monterrey, Mexico. The specific name refers to the American soldier and naturalist Darius N. Couch (1822–1897) who collected the type on a self financed expedition to Mexico.
The croaking gourami is a species of small freshwater labyrinth fish of the gourami family. They are native to still waters in Southeast Asia and are distributed worldwide via the aquarium trade. Croaking gouramis are capable of producing a "croaking" noise using their pectoral fins.
The Red Sea bannerfish is a species of marine ray-finned fish, a butterflyfish from the family Chaetodontidae. It is found in the western Indian Ocean. It has been recorded as an introduced species off Florida and as a Lessepsian migrant in the eastern Mediterranean Sea off Turkey.
The zig-zag eel, also known as the tire-track eel, tire-track spiny eel or marbled spiny eel, is a species of ray-finned, spiny eels belonging to the genus Mastacembelus of the family Mastacembelidae, and is native to the riverine fauna of India, Bangladesh, Pakistan, Sri Lanka, Thailand, Vietnam, Indonesia and other parts of Southeast Asia. The species was described as Macrognathus armatus by Lacepède in 1800. Other common names for this popular aquarium species are leopard spiny eel and white-spotted spiny eel. This species is not only a popular aquarium fish but also as a food fish in its country of origin.
The northern platyfish is a small, endangered species of fish in the family Poeciliidae. It is endemic to the vicinity of Cuatro Ciénegas in the Mexican state of Coahuila. It is restricted to hot-spring heated ditches and marshes of the Laguna Santa Tecla. Its native water is shallow and vegetation-choked, with very stable temperatures that generally are around 27–30 °C (81–86 °F), although captive studies show the species also can live in slightly colder water.
The marbled swordtail is a species of freshwater fish in the family Poeciliidae. It was endemic to the Rio Salado system in Coahuila, northeastern Mexico. It was restricted to springs, connected creeks and pools in waters with a pH slightly above neutral and temperatures of 16–26 °C (61–79 °F), with captive studies indicating that the optimum temperature is around 24 °C (75 °F).
Centropyge venusta, the purplemask angelfish is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae, It is found in the Western Pacific and is occasionally found the aquarium trade.
The Siamese tigerfish, also known as the Siamese tiger perch, is a species of ray-finned fish belonging to the family Lobotidae, the tripletails and tiger perches. This fish is endemic to Indochina and is assessed as Critically Endangered by the IUCN.
The green swordtail is a species of freshwater/brackish fish in family Poeciliidae of order Cyprinodontiformes. A live-bearer, it is closely related to the southern platyfish or 'platy' and can crossbreed with it. It is native to an area of North and Central America stretching from Veracruz, Mexico, to northwestern Honduras.
Platy is a common name of freshwater fish in the genus Xiphophorus that lack a "sword" at the bottom of their tails. Both species are livebearers, similar to other fish of the family Poeciliidae, such as the guppy and molly. Platies are native to the east coast of Central America and southern Mexico.
The ornate rainbowfish is a species of rainbowfish endemic to an area in eastern Australia, where it is native to coastal regions and sandy offshore islands in southern Queensland and northern New South Wales. It is the only known member of its genus. It is a popular aquarium fish.
Xiphophorus montezumae, the Montezuma swordtail, is a livebearing freshwater fish of the order Cyprinodontiformes, family Poeciliidae, and genus Xiphophorus. It is in the same genus as the common platy and the swordtail. Xiphophorus means 'sword-bearer' in Greek.
Heniochus pleurotaenia, the phantom bannerfish, is a marine fish belonging to the family Chaetodontidae, native from the central Indo-Pacific area.
The southern pygmy perch, also known as the Tasmanian pygmy perch, is a species of freshwater ray-finned fish, a temperate perch from the family Percichthyidae which is native to south-eastern Australia and Tasmania.
The threestripe gourami, also known as the Mekong croaking gourami, is a species of freshwater ray-finned fish from the subfamily Macropodusinae which is part of the gourami family Osphronemidae. It is native to south-east Asia.
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