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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Aphyosemion: Greek, aphye, -es, sardine, anchovy + Greek, semeion = mark, signal (Ref. 45335); cyanoflavum: The name cyanoflavum refers to the bicoloured flanks in live males, the anterior part of the body being yellow, the Latin flavum meaning yellow, an adjective, and the posterior part predominantly blue, cyano from the Greek 'kyanos', meaning blue, an adjective (Ref. 125647).