Abstract
Reproductive ecology of 14 balistdd species (Balistidae and Monacanthidae) was reviewed. There are many common features in the reproductive ecology of the balistid fish: males establish territories; males and females mate in pairs on the sandy bottom; the pairs release gametes in a few seconds; eggs are small in size and a clutch contains large number of eggs; spawning occurs in the morning and embryos hatch after sunset of the day; females tend and guard the eggs at least Primitive monacanthid species show the same features of the balistids, however, reproductive ecology of the monacanthids is diverse. The evolution of reproductive ecology of the balistoids was discussed referring to the phylogenelic relationships.