Pseudochromis yamasakii, the dottybelly dottyback, is a species of ray-finned fish in the family Pseudochromidae. It is found in the north-western Pacific Ocean around Japan.Gill, A.C. and H. Senou, 2016. Pseudochromis yamasakii, a new species of dottyback fish from Japan (Teleostei: Pseudochromidae: Pseudochrominae). Zootaxa 4173(3):296-300.

Description Pseudochromis yamasakii reaches a standard length of .

Entymology The fish is named for Kimihiro Yamasaki, who collected the holotype specimen and provided photographs of the new species.

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