Cnesterodontini is a

tribe The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide use of the term in English is in the discipline of anthropology. The definition is contested, in part due to conflict ...

of fishes which are within the

subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end botanical subfamily names with "-oideae", and zo ...

Poeciliinae Poeciliinae is a subfamily of killifish from the family Poeciliidae which contains species from the Americas which are collectively known as the livebearers because many, but not all, of the species within the subfamily are ovoviviparous. Charac ...

of the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Poeciliidae Poeciliidae are a Family (biology), family of freshwater ray-finned fishes of the order Cyprinodontiformes, the tooth-carps, and include well-known live-bearing aquarium fish, such as the guppy, Poecilia, molly, Platy (fish), platy, and Green swo ...

. This tribe is distinguished from other tribes in the Poeciliinae by the males having five rays in the

pelvic fin Pelvic fins or ventral fins are paired fins located on the ventral (belly) surface of fish, and are the lower of the only two sets of paired fins (the other being the laterally positioned pectoral fins). The pelvic fins are homologous to the hi ...

, there is a pedicle at the base of the third ray which joins it to the fourth ray, another pedicle at the third rays tip and a membrane there too.

Genera

The following genera are included within the tribe: * '' Cnesterodon''

Garman Garman is a surname or first name. Notable people with the name include: Sports * Ann Garman, All-American Girls Professional Baseball League player * Judi Garman (born 1954), American softball coach * Mike Garman (born 1949), American baseball pla ...

, 1895 * ''

Phalloceros ''Phalloceros'' is a genus of poeciliids native to freshwater habitats in Brazil, Paraguay, Uruguay and northern Argentina. The majority are endemic to southern and southeastern Brazil (only exceptions are ''P. caudimaculatus'', ''P. harpagos'' ...

Eigenmann Eigenmann () is a surname. Notable persons with that surname include: * Andi Eigenmann (born 1990), Filipino actress * Carl H. Eigenmann (1863–1927), German–American ichthyologist, husband of Rosa Eigenmann * Eduardo de Mesa Eigenmann, birth n ...

, 1907 * ''

Phalloptychus ''Phalloptychus'' is a genus of poeciliids native to eastern and southern Brazil, northern Argentina, Paraguay and Uruguay. The Maximum length for a male is around 2.5cm, while females are around 3.5-4cm at maximum length. Species There are cur ...

'' Eigenmann, 1907 * ''

Phallotorynus ''Phallotorynus'' is a genus of poeciliid toothcarps native to southern Brazil, northern Argentina, and Paraguay. Species There are currently six recognized species in this genus: * '' Phallotorynus dispilos'' Lucinda, R. de S. Rosa & R. E. ...

Henn Henn is a both a surname and an Estonian masculine given name. Notable people with the name include: As a given name * Henn-Ants Kurg (1898–1943), Estonian military colonel and diplomat * Henn Pärn (born 1941), Estonian politician * Hen ...

, 1916 * ''

Tomeurus ''Tomeurus gracilis'' is a species of poeciliid fish native to South America, in Brazil, Surinam and Venezuela. This species grows to a length of TL. It is the only known member of its genus. This species is classified in the tribe Cnestero ...

'' Eigenmann, 1909 Other workers include only ''Cnestrodon'', ''Phallotorynus'' and ''Phalloceros'' while putting Tomerues in its own tribe, the Tomeurini, and ''Phalloptychus'' into a new tribe called Girardinini along with the genera ''

Girardinus ''Girardinus'' is a genus of poeciliids native to Cuba. The name of this genus honours the French people, French zoologist Charles Frédéric Girard (1822-1895) for his work on the freshwater fish of North America. Species There are currently se ...

'', ''

Phallichthys ''Phallichthys'' is a genus of poeciliids native to Central America. They are hardy fish which inhabit stagnant and slow-flowing waters, making them well-suited to fishkeeping. Etymology The genus name literally means "phallus (penis) fish", fro ...

'', '' Xenophallus'' and ''

Poeciliopsis ''Poeciliopsis'' is a genus of poeciliid fishes that primarily are native to Mexico and Central America. The only exceptions are ''P. turrubarensis'' where the range extends into Colombia, and ''P. occidentalis'' where the range extends into Ari ...

''.

References

{{Taxonbar, From=Q5775601 Poeciliidae Fish tribes