Yellowhead butterflyfish
[3] It has a short black vertical bar running through the eyes and a thin yellow line on the rear of the operculum.The orange dorsal and anal fins have light blackmarks on their lower rear parts and yellow margins.It occurs from Somalia to Durban in South Africa and Madagascar, east as far as Sri Lanka, western Thailand and northwestern Sumatra.They form pairs for breeding [2] and the females swell up when ready to spawn, the eggs are scattered into the water and the male fertilises them.[4] The yellowhead butterflyfish was first formally described in 1833 by the English naturalist Edward Turner Bennett (1797–1836) with the type locality given as Ceylon.