Phycobilins in the wild type of Porphyra yezoensis UEDA and its color mutant types of red, green and yellow were analysed by LKB-Ampholine electrofocusing to yield phycoerythrin (PE), phycocyanin (PC) and allophycocyanin (AlloPC) with 4, 6-7 and 3 narrow bands in the columns respectively. The occurrence of different PE and PC in respective types of the Porphyra yezonsis were R-PE and C-PC for the wild type, R-PE and R-PC for the red type, B-PE and C-PC for the green type, B-PE and R-PC for the yellow type, and with AlloPC in all the types examined.