''Phalloptychus'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

poeciliid The Poeciliidae are a family of freshwater fishes of the order Cyprinodontiformes, the tooth-carps, and include well-known live-bearing aquarium fish, such as the guppy, molly, platy, and swordtail. The original distribution of the family wa ...

s native to eastern and southern

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

, northern

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, t ...

Paraguay Paraguay (; ), officially the Republic of Paraguay ( es, República del Paraguay, links=no; gn, Tavakuairetã Paraguái, links=si), is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to th ...

and

Uruguay Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering ...

. The Maximum length for a male is around 2.5cm, while females are around 3.5-4cm at maximum length

Species

There are currently two recognized species in this genus: * ''

Phalloptychus eigenmanni ''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 curre ...

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

, 1916 * '' Phalloptychus januarius'' ( R. F. Hensel, 1868)

References

Poeciliidae Fish of South America Freshwater fish genera Taxa named by Carl H. Eigenmann Ray-finned fish genera {{Cyprinodontiformes-stub