Phalloceros heptaktinos

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| genus = Phalloceros

| species = heptaktinos

| authority = Lucinda, 2008

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Phalloceros heptaktinos, the seven ray toothcarp, is a species of poeciliid fish native to Brazil.

{{cite journal|author=Lucinda, P.H.F.|year= 2008|title= Systematics and biogeography of the genus Phalloceros Eigenmann, 1907 (Cyprinodontiformes: Poeciliidae: Poeciliinae), with the description of twenty-one new species|journal= Neotrop. Ichthyol. |volume=6|issue=2|pages=113–158|doi= 10.1590/S1679-62252008000200001}}

Distribution

Phalloceros heptaktinos is known only from the tributarues of the arroio dos Ratos, in the Jacuí basin of the Rio Grande do Sul, Brazil.

Size

The females of this species grow to a total length of {{convert|3.0|cm|in}}, while males remain smaller at {{convert|2.4|cm|in}}.

.{{FishBase |genus= Phalloceros |species= heptaktinos| month = February | year = 2015}}

Habitat

The fish live in tropical freshwater; and are benthopelagic.

Etymology

The fish is named in Latin = hepta-, seven; aktinos, rays, referring to number of dorsal-fin rays of the females.

{{cite web | url = http://www.etyfish.org/cyprinodontiformes4/ | title = Order CYPRINODONTIFORMES: Families POECILIIDAE, ANABLEPIDAE, VALENCIIDAE, APHANIIDAE and PROCATOPODIDAE | access-date= 16 February 2025 | author1 = Christopher Scharpf | author2 = Kenneth J. Lazara | name-list-style = amp | work = The ETYFish Project Fish Name Etymology Database | publisher = Christopher Scharpf and Kenneth J. Lazara | date = 22 September 2018}}

References

Category:Poeciliidae

Category:Freshwater fish of South America

Category:Freshwater fish of Brazil

Category:Taxa named by Paulo Henrique Franco Lucinda

Category:Fish described in 2008