Pituna

Pituna is a genus of fish in the family Rivulidae. 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.^[2][3]

Pituna
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cyprinodontiformes
Family:	Rivulidae
Genus:	Pituna W. J. E. M. Costa, 1989
Type species
Pituna poranga Costa, 1989[1]

They are small fish, up to 4.5 cm (1.8 in) in standard length.^[4] 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.^[2]

Species

Pituna and the closely related Maratecoara, Papiliolebias, Plesiolebias and Stenolebias form a clade, Plesiolebiasini.^[2]

There are currently six recognized species in Pituna:^[4]

• Pituna brevirostrata W. J. E. M. Costa, 2007
• Pituna compacta (G. S. Myers, 1927)
• Pituna obliquoseriata W. J. E. M. Costa, 2007
• Pituna poranga W. J. E. M. Costa, 1989
• Pituna schindleri W. J. E. M. Costa, 2007
• Pituna xinguensis W. J. E. M. Costa & D. T. B. Nielsen, 2007