Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Euteleosteomorpha
Subcohors: Neoteleostei
Infracohors: Eurypterygia
Sectio: Ctenosquamata
Subsectio: Acanthomorphata
Divisio/Superordo: Acanthopterygii
Subdivisio: Percomorphaceae
Series: Ovalentaria
Superordo: Atherinomorphae
Ordo: Cyprinodontiformes
Subordo: Cyprinodontoidei
Familia: Poeciliidae
Subfamilia: Poeciliinae
Tribus: Heterandriini
Genus: Heterandria
Species: H. anzuetoi – H. attenuata – H. bimaculata – H. cataractae – H. dirempta – H. formosa – H. jonesii – H. litoperas – H. obliqua – H. tuxtlaensis
Name
Heterandria Agassiz, 1853
Gender: feminine
Type species: Heterandria formosa Girard, 1859
Synonyms
Pseudoxiphophorus Bleeker, 1860
Poeciliodes Steindachner, 1863
References
Agassiz, Louis. 1853. Recent researches of Prof. Agassiz. [Extract from letter to J. D. Dana dated Cambridge, June 9, 1853]. American Journal of Science and Arts 16: 134–136.
Links
Heterandria – Taxon details on Integrated Taxonomic Information System (ITIS).
Heterandria is a genus of livebearing fishes within the family Poeciliidae. Most species occur in Guatemala and its surroundings, particularly Mexico, but the midget livebearer (H. formosa) comes from the southeastern United States.
Though many Poecilidae are familiar aquarium fishes, e.g. guppies, mollies, platys and swordtails, species within Heterandria are not commonly kept as pets. Somewhat more frequently found in aquaria is H. formosa, perhaps because it is one of the smallest known fish species in the world; its diminutive males are probably the smallest fish easy to keep as a pet. Species in this genus resemble egg-laying Cyprinodontoidei such as Fundulidae (topminnows) at first glance, and are thus sometimes called "killifish" though this is technically erroneous.[2]
Species
FishBase currently recognize 3 species in this genus,[3][4] but based on genetics, external characters, morphometrics and meristics H. formosa (the type species of the genus) is not closely related to the remaining, which have been moved to their own genus, Pseudoxiphophorus.[5][6][7] There are probably more remaining undiscovered[citation needed] as these fishes are rather inconspicuous. However, it is not very likely that many species remain unknown to science as this genus is only found in a rather restricted region, and only one new species has been discovered since 1980.
The three species classified under this genus are:[3]
Heterandria attenuata D. E. Rosen & R. M. Bailey, 1979
Heterandria formosa Girard, 1859 (Dwarf livebearer, least killifish)
Heterandria tuxtlaensis McEachran & T. J. DeWitt, 2008
References
Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Heterandia". Catalog of Fishes. California Academy of Sciences. Retrieved 3 November 2019.
FishBase (2009): Heterandria species. Retrieved April 8, 2009.
Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Heterandria". FishBase. August 2019 version.
John D. Mceachran & Thomas J. Dewitt (2008). "A new livebearing fish, Heterandria tuxtlaensis, from Lake Catemaco, Veracruz, Mexico (Cyprinodontiformes: Poeciliidae)" (PDF). Zootaxa. 1824: 45–54. doi:10.11646/zootaxa.1824.1.5.
Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Pseudoxiphophorus". FishBase. August 2019 version.
Morales-Cazan, A.; and Albert, J.S. (2012). Monophyly of Heterandriini (Teleostei: Poeciliidae) revisited: a critical review of the data. Neotrop. Ichthyol. 10 (1).
Agorreta, A.; Domínguez-Domínguez, O.; Reina, R.G.; Miranda, R.; Bermingham, E.; and Doadrio, I. (2013). Phylogenetic relationships and biogeography of Pseudoxiphophorus (Teleostei: Poeciliidae) based on mitochondrial and nuclear genes. Mol Phylogenet Evol. 2013 Jan;66(1):80-90
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