Cynolebias magnificus Costa & Brasil, 1991 Simpsonichthys magnificus (Costa & Brasil 1991) Hypsolebias magnificus is a species of killifish in the family Rivulidae native the Middle São Francisco River basin in Brazil.

It grows to 5 cm (2.0 in) TL.

[1] It was formerly included in the genus Simpsonichthys but has been recently reclassified.

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