Pseudochromis sankeyi, the striped dottyback, is a species of ray-finned fish from the Western Indian Ocean which is a member of the family Pseudochromidae. It occasionally makes its way into the aquarium trade. It grows to a size of 7 cm in length. The specific name honours the British collector and wholesaler of marine fish Richard D. Sankey, who gave Roger Lubbock study specimens.

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