Cynopoecilus
Cynopoecilus melanotaenia
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cyprinodontiformes
Family: Rivulidae
Genus: Cynopoecilus
Regan, 1912
Type species
Cynolebias melanotaenia
Regan, 1912[1]
Synonyms[2]

Poecilopanchax Costa, 2016

Cynopoecilus is a genus of killifish in the family Rivulidae. They are endemic to seasonal temporary pools in Southern Brazil and northeastern Uruguay. Most species are restricted to the region bordering the Patos–Mirim lagoons, but C. feltrini is found at the Tubarão River (north of the lagoons) and C. intimus is found at the middle Gravataí River (inland from the lagoons).[3] The Cynopoecilus species have small ranges and are often threatened. The region inhabited by C. intimus has experienced extensive habitat destruction and recent surveys have not been able to locate this species; it may already be extinct.[3]

They are small fish, up to 4.4 cm (1.7 in) in standard length.[4] Uniquely among killifish, Cynopoecilus and the closely related Campellolebias have internal fertilization.[3]

Species

There are currently 6 recognized species in this genus:[4]

References

  1. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Cynopoecilus". Catalog of Fishes. California Academy of Sciences. Retrieved 12 September 2019.
  2. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Rivulidae". Catalog of Fishes. California Academy of Sciences. Retrieved 12 September 2019.
  3. 1 2 3 4 Costa, W.J.E.M., Amorim, P.F. & Mattos, J.L.O. (2016): A new species of inseminating seasonal killifish of the Cynopoecilus melanotaenia complex from southern Brazil (Cyprinodontiformes: Rivulidae). Biodiversity Data Journal, 4: e6888.
  4. 1 2 Froese, Rainer and Pauly, Daniel, eds. (2018). Species of Cynopoecilus in FishBase. November 2018 version.
  5. ↑ Ferrer, J., Wingert, J.M. & Malabarba, L.R. (2014): Description of a new species and phylogenetic analysis of the subtribe Cynopoecilina, including continuous characters without discretization (Cyprinodontiformes: Rivulidae). Zoological Journal of the Linnean Society, 172 (4): 846–866.
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