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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Cynolebias: Greek, kyon = dog + Greek, odous = teeth + Greek, lebias = a kind of small fish (Ref. 45335); parnaibensis: Named for its unique occurrence in the Parnaíba River basin..
More on authors: Costa, Ramos, Alexandre & Ramos.