| 词条 | Pituna |
| 释义 |
| name = | image = | image_caption = | regnum = Animalia | phylum = Chordata | classis = Actinopterygii | ordo = Cyprinodontiformes | familia = Aplocheilidae | genus = Pituna | genus_authority = W. J. E. M. Costa, 1989 }}Pituna is a genus of fish in the family Aplocheilidae. These annual killifish are endemic to seasonal pools, swamps and lagoons in the Araguaia–Tocantins, Xingu, uppermost Paraná and Paranaíba river basins in Brazil. Most are from savanna regions, but P. xinguensis is from the Amazon rainforest.[1] They are small fish, up to {{cvt|4.5|cm}} in standard length.[2] Males are overall brownish with a spotted greenish-golden, turquoise or blue pattern, and a blue-black spot at the operculum. Females are far duller.[1] SpeciesPituna and the closely related Maratecoara, Papiliolebias, Plesiolebias and Stenolebias form a clade, Plesiolebiasini.[1]There are currently six recognized species in Pituna:[2]
References1. ^1 2 {{cite journal | author=Costa, W.J.E.M. | year=2007 | title=Taxonomy of the plesiolebiasine killifish genera Pituna, Plesiolebias and Maratecoara (Teleostei: Cyprinodontiformes: Rivulidae), with descriptions of nine new species | journal=Zootaxa | volume=1410 | issue= | pages=1–41 }} {{Taxonbar|from=Q3544823}}{{Cyprinodontiformes-stub}}2. ^1 {{FishBase genus | genus=Pituna | month=November | year=2018 }} 2 : Aplocheilidae|Freshwater fish genera |
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