Hasemania
| Hasemania | |
|---|---|
| Hasemania nana | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Characiformes |
| Family: | Acestrorhamphidae |
| Subfamily: | Stichonodontinae |
| Genus: | Hasemania Ellis, 1911[1] |
| Type species | |
| Hasemania melanura Ellis, 1911[1]
| |
| Synonyms[1] | |
| |
Hasemania is a genus of freshwater ray-finned fishes belonging to the family Acestrorhamphidae, the American characins. The species in this genus are endemic to Brazil, where only found in river basins that originate on the Brazilian Shield, ranging west to the Juruena system, north to the São Francisco system and south to the Paraná system.[2][3] The individual species generally have quite small ranges and two, H. crenuchoides and H. piatan, are considered threatened by Brazil's Ministry of the Environment.[4]
They are small fish, up to 2.7–7 cm (1.1–2.8 in) in standard length depending on the exact species.[2]
The genus is named for zoologist and explorer John Diederich Haseman. He collected all of the known species of this genus at the time of description.[5]
Species
Hasemania contains the following valid species:[6][3]
- Hasemania diastatos (Dagosta, Marinho & Camelier, 2014)
- Hasemania hanseni (Fowler, 1949)
- Hasemania maxillaris Ellis, 1911
- Hasemania melanura Ellis, 1911 (Copper tetra)
- Hasemania nana (Lütken, 1875) (Silvertip tetra)
- Hasemania negodagua (Lima & Gerhard, 2001)
- Hasemania piatan Zanata & J. P. Serra, 2010
References
- ^ a b c Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Genera in the family Stichonodontinae". Catalog of Fishes. California Academy of Sciences. Retrieved 20 October 2025.
- ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Hasemania". FishBase. October 2018 version.
- ^ a b Serra, J.P.; Langeani, F. (2015). "A new Hasemania Ellis from the upper rio Paraná basin, with the redescription of Hasemania crenuchoides Zarske & Géry (Characiformes: Characidae)". Neotropical Ichthyology. 13 (3): 479–486. doi:10.1590/1982-0224-20140107. hdl:11449/177503.
- ^ "Lista de Especies Ameaçadas | Portaria MMA nº 445, de 17 de dezembro de 2014" (PDF). ICMBio (Ministry of the Environment, Brazil). p. 127. ISSN 1677-7042. Archived from the original (PDF) on 2022-05-03.
- ^ Christopher Scharpf (3 October 2025). "Family ACESTRORHAMPHIDAE Eigenmann 1907 (American Tetras)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. Retrieved 20 October 2025.
- ^ Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Species in the genus Hasemania". Catalog of Fishes. California Academy of Sciences. Retrieved 21 September 2025.