Phalloceros leticiae, the Araguaia toothcarp, is a species of poeciliid fish native to Brazil.
Distribution Phalloceros leticiae is found in Brazil in the upper rio Araguaia, which is a main tributary to the rio Tocantins in Brazil.
Size The females of this species grow to a total length of , while males remain smaller at . .
Habitat The fish live in tropical freshwater; and are benthopelagic.
Etymology The fish is named in honor of Letícia M. Lucinda, Lucinda's daughter.
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