| Eretmobrycon | |
|---|---|
 | |
| Eretmobrycon scleroparius | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Characiformes |
| Family: | Characidae |
| Genus: | Eretmobrycon W. L. Fink, 1976 |
Eretmobrycon is a genus of characins found in Central and South America. [1]
eretmón (Gr. ἐρετμόν) means oar or paddle, referring to the paddle-like lower caudal-fin lobe of E. bayano; brycon is a generalized term used in generic names of many characiform fishes, derived from brýchō (Gr. βρύχω), to bite, gnash teeth or eat greedily, originally an allusion to a fully toothed maxillae. [2]
There are currently 12 recognized species in this genus: [1]
Hyphessobrycon is a genus of freshwater fish in the family Characidae. These species are among the fishes known as tetras. The genus is distributed in the Neotropical realm from southern Mexico to Río de la Plata in Argentina. Many of these species are native to South America; about six species are from Central America and a single species, H. compressus is from southern Mexico.
Astyanax is a genus of freshwater fish in the family Characidae of the order Characiformes. Some of these fish, like many of their relatives, are kept as aquarium pets and known collectively as tetras. With around 150 described species and new ones being described yearly, this genus is among the largest of the entire order; Hyphessobrycon also has more than 145 species and which one is larger at any one time depends on whether more species have been recently described in one or the other. The blind and colorless cave tetra of Mexico is a famous member of the genus, but its taxonomic position is disputed: Some recognize it as part of the Mexican tetra and this is supported by phylogenetic evidence, but others recognize the cave form as a separate species, A. jordani.
Astyanax jordani is a freshwater fish of the characin family of order Characiformes, native to Mexico. It is sometimes called the cave tetra, or by its local Spanish name sardina ciega.
The ruby tetra is a species of freshwater fish in the family Characidae. It is endemic to the Río Meta, Colombia, South America. In nature, it has a natural red colour, but this is somewhat lessened in captivity. Ruby tetras grow up to 3 cm (1.2 in) to 3.5 cm (1.4 in) long.
Boehlkea fredcochui, also known as the Cochu's blue tetra is a species of characin. Its natural range is in the Amazon Basin. It is commonly kept as an aquarium fish.
The gold tetra, or Rodway's tetra is a species of small freshwater fish in the family Characidae native to lowland South America, where they are abundant in coastal floodplains. Their name comes from a powdery golden tint on their body that is thought to be caused by internal parasites. Gold tetras are peaceful, hardy, schooling community fish. Gold tetras have been successfully bred in captivity.
Axelrodia is a genus of small characin from the Amazon Basin and Meta River in South America, with three currently described species:
Bryconamericus is a genus of characins found in Central and South America.
Creagrutus is a genus of characins found mostly in South America, with one species C. affinis extending into Panama in Central America.
Gephyrocharax is a genus of characins found in South America, Trinidad in the Caribbean, and Panama.
Hemibrycon is a genus of characins. They are mainly found in South America, Trinidad in the Caribbean), and H. dariensis of east Panama.
Hollandichthys is a genus of characins endemic to rivers and streams in southern and southeastern Brazil from Rio Grande do Sul to Rio de Janeiro. These are small fish that reach up to 9.6 cm (3.8 in) in standard length. The currently recognized species in this genus are:
Lophiobrycon weitzmani is a species of small characin endemic to Brazil, where it is found in the upper Paraná River basin. It is considered threatened by Brazil's Ministry of the Environment. This species is the only member of the genus Lophiobrycon, but it is closely related to Glandulocauda and Mimagoniates.
Tyttocharax is a genus of characins found in tropical South America.
Carlastyanax aurocaudatus is a small species of freshwater fish in the family Characidae native to the Río Cauca in Colombia. It is the only member of the monotypic genus Carlastyanax, which was named in 1972 specifically for the species by Jacques Géry. Upon description, it was named Astyanax aurocaudatus by Carl H. Eigenmann. There has been debate concerning whether or not the genus should be recognized, but C. aurocaudatus is currently considered a valid species.
Iguanodectidae is a family of freshwater fish in the order Characiformes that lives in South America. It is home to the subfamily Iguanodectinae and the monotypic Bryconops clade. Several species in the family, such as the green line lizard tetra, the tailspot tetra, and the orangefin tetra, are sometimes taken as aquarium fish.
Pristella crinogi is a freshwater fish in the family Characidae of the order Characiformes. It is a tropical fish. It resides in the basins of the Tocantins River and São Francisco River.
Tyttocharax metae is a small freshwater fish of the family Characidae which is found in the Güejar river system of the Orinoco Basin in Colombia. It was discovered in the Columbian municipality of Vista Hermosa in 2009 and was formally described in 2012 by Román-Valencia, García-Alzate, Ruiz-C. & Taphorn.
Creagrutus dulima is a species of characin fish in the family Characidae. It was described in 2018 by Juan G. Albornoz-Garzón, Cristhian C. Conde-Saldaña, Jorge E. García-Melo, Donald C. Taphorn, and Francisco A. Villa-Navarro1.
Eretmobrycon bayano is a species of fish in the family Characidae, commonly known as characins. It was first described by William Lee Fink in 1976. This species is native to the Upper Bayano River basin in Central America.
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