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Rediscovery of the endangered Amphilophus lyonsi (Gosse 1966) (Cichliformes: Cichlidae) in Costa Rica; extended diagnosis and description and new ecological data

. Zootaxa. 5182, 6 (Sep. 2022), 528–540. DOI:https://doi.org/10.11646/zootaxa.5182.6.2.