A late darter with males that turn a deep red when mature. Difficult to separate from other red darters. In Norway there are two different subspecies which sometimes are considered separate species: ssp. striolatum and ssp. nigrescens.
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Hallvard Elven
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Anders Endrestøl
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Ove Bergersen
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Ole Jørgen Lønnve
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Natural History Museum, University of Oslo
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Norsk institutt for naturforskning
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NIBIO Norsk institutt for bioøkonomi
