Biology:Pterolebias

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Short description: Genus of fishes

Pterolebias
Scientific classification e
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

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]

Depending on the exact species, these annual killifish reach up to 7–12 cm (2.8–4.7 in) in total length.[3]

Species

There 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

References

  1. Eschmeyer, William N.; Fricke, Ron; van der Laan, Richard, eds. "Pterolebias". California Academy of Sciences. http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatget.asp?genid=4582. 
  2. 2.0 2.1 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. 
  3. 3.0 3.1 Froese, Rainer and Pauly, Daniel, eds. (2018). Species of Pterolebias in FishBase. October 2018 version.
  4. 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. 

Wikidata ☰ Q3753584 entry