| Hasemania | |
|---|---|
| |
| Hasemania nana | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Characiformes |
| Family: | Characidae |
| Subfamily: | incertae sedis |
| Genus: | Hasemania Durbin, 1911 |
Hasemania is a genus of characins 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.[1][2] 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.[3]
They are small fish, up to 2.7–7 cm (1.1–2.8 in) in standard length depending on the exact species.[1]
The genus is named for zoologist and explorer John Diederich Haseman. He collected all of the known species of this genus.[4]
- ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Hasemania". FishBase. October 2018 version.
- ^ 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.
- ^ ICMBio (Ministry of the Environment, Brazil): Portaria MMA nº 445, de 17 de dezembro de 2014 Archived 2022-05-03 at the Wayback Machine. Lista de Especies Ameaçadas - Saiba Mais. Retrieved 1 December 2018.
- ^ "Order CHARACIFORMES: Family CHARACIDAE: Subfamily STEVARDIINAE + Incertae sedis". The ETYFish Project. Archived from the original on 2023-11-07. Retrieved 2023-08-08.