Pterolebias is a genus of killifish from the family Rivulidae which are native to temporary swamps and ponds in South America. It includes two groups, which sometimes are regarded as separate genera: Pterolebias (sensu stricto) from the southern Amazon and Paraguay (including the Pantanal) river basins, and Gnatholebias from the Orinoco (including the Llanos) river basin.[2]
| Pterolebias | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cyprinodontiformes |
| Family: | Rivulidae |
| Genus: | Pterolebias Garman, 1895 |
| Type species | |
| Pterolebias longipinnis Garman, 1895[1]
| |
| Synonyms | |
|
Gnatholebias W. J. E. M. Costa, 1998 | |
Depending on the exact species, these annual killifish reach up to 7–12 cm (2.8–4.7 in) in total length.[3]
Species
editThere are four recognized species in Pterolebias according to FishBase,[3] but two of these are sometimes placed in a separate genus, Gnatholebias. The two groups are relatively distantly related and if kept in a single genus Pterolebias is paraphyletic.[2][4]
- Pterolebias (sensu stricto)
- Pterolebias longipinnis Garman, 1895 (Longfin killie)
- Pterolebias phasianus W. J. E. M. Costa, 1988
- Gnatholebias
- Pterolebias hoignei Thomerson, 1974
- Pterolebias zonatus G. S. Myers, 1935
References
edit- ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Pterolebias". Catalog of Fishes. California Academy of Sciences. Retrieved 12 September 2019.
- ^ a b Costa, W.J.E.M. (2005). "The Neotropical annual killifish genus Pterolebias Garman (Teleostei: Cyprinodontiformes: Rivulidae): phylogenetic relationships, descriptive morphology, and taxonomic revision". Zootaxa. 1067 (1): 1. doi:10.11646/zootaxa.1067.1.1.
- ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Pterolebias". FishBase. October 2018 version.
- ^ Costa, W.J.E.M. (2014). "Phylogeny and evolutionary radiation in seasonal rachovine killifishes: biogeographical and taxonomical implications". Vertebrate Zoology. 64 (2): 177–192. doi:10.3897/vz.64.e31478.
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