title: Erratum.
abstract: Because of an error in the program used to calculate the volume of cylinders, the egg volumes for pomacentrins reported by R. E. Thresher (1 Oct. 1982, p. 70) were uniformly too large by a factor of 4. In figure 1 (p. 71), the scale on the abscissa for the size-frequency distribution of pomacentrin eggs should be 0 to 1.0 cubic millimeters, rather than 0 to 4.0 mm(3), and the average egg volumes for western Atlantic and western Pacific species are, respectively, 0.165 mm(3) and 0.46 mm(3). The error affects neither the distributions of egg volumes in the two areas nor the magnitude nor significance level of the differences between them.