Petitella is a genus of freshwater fish in the family Characidae of the order Characiformes.
| Petitella | |
|---|---|
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| Petitella bleheri | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Characiformes |
| Family: | Characidae |
| Subfamily: | Pristellinae |
| Genus: | Petitella Géry & Boutière, 1964 |
| Type species | |
| Petitella georgiae Géry & Boutière, 1964
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They are all popular tropical fish in the aquarium hobby. They are commonly known as Rummy-nose tetras.
Taxonomy and systematics
editThis genus was formerly monotypic, featuring only P. georgiae. The other two species were allocated to Hemigrammus. Before the reallocation in 2020,[1][2] they were distinguished by the following common names:
- P. bleheri - Brilliant rummy-nose tetra, or Firehead tetra
- P. georgiae - False rummy-nose tetra
- P. rhodostoma - Rummy-nose tetra
Species
editThere are three recognized species in this genus:[3]
- Petitella bleheri (Géry & Mahnert, 1986)
- Petitella georgiae Géry & Boutière, 1964
- Petitella rhodostoma (Ahl, 1924)
References
edit- ^ Jeremy Gay (14 July 2020). "Rummynose tetras combine into a single genus". Fishkeeping News. Retrieved 28 December 2023.
- ^ Bittencourt, Pedro Senna; Machado, Valéria Nogueira; Marshall, Bruce Gavin; Hrbek, Tomas; Farias, Izeni Pires (2020). "Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri". Neotropical Ichthyology. 18 (2). doi:10.1590/1982-0224-2019-0109.
- ^ Bailly, Nicolas (2014). "Petitella Géry & Boutière, 1964". WoRMS. World Register of Marine Species. Retrieved 28 December 2023.
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