Lymphocystis disease is reported for the first time from the white-tailed damselfish, Dascyllus aruanus, and the black-tailed humbug, Dascyllus melanurus. Both species are commercially important exotic aquarium fish from the Indo-Australian Pacific. Lymphocystis is recorded again from the copper banded angel-fish, Chelmon rostratus. An updated host list for the disease is included.