Priocharax

Priocharax
Priocharax conwayi
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Characiformes
Family:	Acestrorhamphidae
Subfamily:	Tyttobryconinae
Genus:	Priocharax S. H. Weitzman & Vari, 1987 [1]
Type species
Priocharax ariel S. H. Weitzman & Vari, 1987 [1]
Species
See text

Priocharax is a genus of very small freshwater ray-finned fishes belonging to the family Acestrorhamphidae, the American characins. ^[1] The fishes in this genus are found in the Amazon and Orinoco basins in tropical South America. ^{[2] [3]}

Species

There are currently 12 recognized species in this genus: ^{[4] [5]}

• Priocharax ariel S. H. Weitzman & Vari, 1987
• Priocharax britzi Mattox, Souza, Toledo-Piza & Oliveira, 2021
• Priocharax conwayi Mattox, F. C. T. Lima, Britz, Souza & Oliveira, 2024 ^[5]
• Priocharax marupiara Mattox, Britz, Souza, Casas, F. C. T. Lima & Oliveira, 2023
• Priocharax nanus Toledo-Piza, Mattox & Britz, 2014 ^[6]
• Priocharax phasma Mattox, F. C. T. Lima, Britz, Souza & Oliveira, 2024 ^[5]
• Priocharax piagassu Lopez, Souza, Reia, Mantuaneli, Morales, F. C. T. Lima, Oliveira & Mattox, 2025
• Priocharax pygmaeus S. H. Weitzman & Vari, 1987
• Priocharax rex Mattox, Acosta-Santos, Bogotá-Gregory, Agudelo & F. C. T. Lima, 2025
• Priocharax robbiei Lopez, Souza, Reia, Mantuaneli, Morales, F. C. T. Lima, Oliveira & Mattox, 2025
• Priocharax toledopizae Mattox, Britz, Souza, Casas, F. C. T. Lima & Oliveira, 2023
• Priocharax varii Mattox, Souza, Toledo-Piza, Britz & Oliveira, 2020

References

1. Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Genera in the family Tyttobryconinae". Catalog of Fishes . California Academy of Sciences . Retrieved 27 October 2025.
2. Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Priocharax". FishBase . August 2019 version.
3. Stanley H. Weitzman; Richard P. Vari (1987). "Two new species and a new genus of miniature Characid Fishes (Teleostei: Characiformes) from Northern South America". Proceedings of the Biological Society of Washington. 100: 640–652.
4. Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Species in the genus Priocharax". Catalog of Fishes . California Academy of Sciences . Retrieved 31 August 2025.
5. George M.T. Mattox; Flávio C. T. Lima; Ralf Britz; Camila S. Souza; Claudio Oliveira (12 September 2024). "Two new miniature species of the fish genus Priocharax from the Rio Tapajós and Amazonas drainages, Pará, Brazil (Teleostei: Characiformes: Characidae)". Vertebrate Zoology. 74: 533–550. doi: 10.3897/vz.74.e130038 .
6. Toledo-Piza, M.; Mattox, G.M.T.; Britz, R. (2014). "Priocharax nanus, a new miniature Characid from the Rio Negro, Amazon basin (Ostariophysi: Characiformes), with an updated list of miniature Neotropical freshwater fishes". Neotropical Ichthyology. 12 (2): 229–246. doi:10.1590/1982-0224-20130171.