Phalloceros megapolos, the Lindo toothcarp, is a species of poeciliid fish native to Brazil.
Distribution Phalloceros megapolos is found in the drainages of the rio São João, the rio Cubatão (Norte) and small adjacent drainages, all of which flow into the Baía de Guaratuba in Paraná State, 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 Latin = mega-, meaning large; polos, a rod, pole or an axle, referring to expanded terminal appendix of the gonopodium.
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