| Scolichthys | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cyprinodontiformes |
| Family: | Poeciliidae |
| Subfamily: | Poeciliinae |
| Tribe: | Scolichthyini Rosen, 1967 |
| Genus: | Scolichthys Rosen, 1967 |
| Type species | |
| Scolichthys greenwayi Rosen, 1967 [1] | |
Scolichthys is a genus of poeciliid fishes endemic to river basins in Guatemala.
There are currently two recognized species in this genus: [2]
Poeciliidae are a family of freshwater ray-finned fishes of the order Cyprinodontiformes, the tooth-carps, and include well-known live-bearing aquarium fish, such as the guppy, molly, platy, and swordtail. The original distribution of the family was the Southeastern United States to north of Río de la Plata, Argentina, and Africa, including Madagascar. Due to release of aquarium specimens and the widespread use of species of the genera Poecilia and Gambusia for mosquito control, though, poeciliids can today be found in all tropical and subtropical areas of the world. In addition, Poecilia and Gambusia specimens have been identified in hot springs pools as far north as Banff, Alberta.
Carpet sharks are sharks classified in the order Orectolobiformes. Sometimes the common name "carpet shark" is used interchangeably with "wobbegong", which is the common name of sharks in the family Orectolobidae. Carpet sharks have five gill slits, two spineless dorsal fins, and a small mouth that does not extend past the eyes. Many species have barbels.
Gambusia is a large genus of viviparous fish in the family Poeciliidae. Gambusia contains over 40 species, most of which are principally found in freshwater habitats, though some species may also be found in brackish or saltwater habitats. The genus Gambusia comes from the Cuban term, "Gambusino", which means "free-lance miner". The type species is the Cuban gambusia, G. punctata. The greatest species richness is in Mexico, Texas, and the Greater Antilles, but species are also found elsewhere in the eastern and southern United States, the Bahamas, Central America, and Colombia. Gambusia species are often called topminnows, or simply gambusias; they are also known as mosquitofish, which, however, refers more specifically to two species, G. affinis and G. holbrooki, which are often introduced into ponds to eat mosquito larvae. As a consequence, they have been introduced widely outside their native range, and frequently become invasive, threatening local species. G. affinis and G. holbrooki are now established in many parts of the world and are likely to continue to spread as climatic conditions change. They are only occasionally kept in aquariums, due to their relative lack of color and the highly aggressive nature of the aforementioned mosquitofish species.
Xiphophorus is a genus of euryhaline and freshwater fishes in the family Poeciliidae of order Cyprinodontiformes, native to Mexico and northern Central America. Xiphophorus species can be divided into 3 groups based on their evolutionary relationships: platyfish, northern swordtails, and southern swordtails. Platyfish formerly were classified in another genus, Platypoecilus, 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.
Gnathonemus is a genus of freshwater ray-finned fishes belonging to the family Mormyridae, the elephantfishes. The fishes in this genus are found in subsaharan Africa.
Ophisternon is a genus of swamp eels found in fresh and brackish waters in South and Southeast Asia, New Guinea, Australia, Middle America and West Africa. Two species are blind cave-dwellers.
The Chiapas swordtail or upland swordtail is a species of livebearing freshwater fish of family Poeciliidae, and genus Xiphophorus. It is, therefore, in the same genus as the common platy and the swordtail. The Chiapas swordtail was discovered and first described by Donn E. Rosen in 1960, along with four other species of Xiphophorus.
Lutjanidae or snappers are a family of perciform fish, mainly marine, but with some members inhabiting estuaries, feeding in fresh water. The family includes about 113 species. Some are important food fish. One of the best known is the red snapper.
Heterandria is a genus of livebearing fishes within the family Poeciliidae. Most species occur in Guatemala and its surroundings, particularly Mexico, but the midget livebearer (H. formosa) comes from the southeastern United States.
Myomyrus is a genus of elephantfish in the family Mormyridae. Its members reach about 25–30 cm (10–12 in) in length and are restricted to the Congo River Basin in Africa.
Iso is an Indo-Pacific genus of silversides, commonly called surf sardines, the only genus in the monogeneric family Isonidae, they were formerly classified in the family Notocheiridae alongside the surf silverside but they are now thought to be within the suborder Atherinoidei while the surf silverside is classified in the suborder Atherinopsoidei, along with the Neotropical silversides. It contains five species to date, the first of which was described in 1895.
Brachyrhaphis is a genus of poeciliids native to freshwater habitats in Central America. Most are restricted to Panama and Costa Rica, but B. holdridgei also occurs in Nicaragua and B. hartwegi is from Mexico and Guatemala. A phylogenetic analysis published in 2015 suggested that Brachyrhaphis may not be of a monophyletic group.
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.
Penetopteryx is a genus of pipefishes.
Synbranchus is a genus of swamp eels native to Central and South America.
Poeciliinae is a subfamily of killifish from the family Poeciliidae which contains species from the Americas which are collectively known as the livebearers because many, but not all, of the species within the subfamily are ovoviviparous.
Pseudoxiphophorus is a genus of fish from the family Poeciliidae. The species in the genus were formerly considered to be in the genus Heterandria but workers found that most of the species were not closely related to the type species of that genus, Heterandria formosa, and seven species were transferred to the genus Pseudoxiphophorus. They are found in Central America.
Scolichthys iota is a species of poeciliid found in the dense vegetation along the Rio Chajmaic in Alta Verapaz, Guatemala. This species reaches a length of 2.5 cm (0.98 in). It is found along with Xiphophorus signum.
Scolichthys greenwayi is a species of freshwater fish of the family Poeciliidae. It is found in flowing waters along the Rio Chixoy and Rio Salinas system in Alta Verapaz, Guatemala.
Xiphophorus signum is a poeciliid fish endemic to Guatemala. It occurs in only one creek and adjacent pools, making it a vulnerable species.
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