Percentage difference caused by rounding.

a = level of difference was not due to rounding; reported value was out by a factor of 10.b = level of difference was not entirely due to rounding; reported values are possibly miscalculated.c = Rounding by Wourms (1981).d = Rounding by Wourms et al. (1988).e = Rounding by Wourms (1993).f = Rounding by Stribling et al. (1980).The level of difference rounding has (as a percentage of the recalculated value) on the percentage change reported by Needham (1942), unless stated otherwise, compared to the percentage change values recalculated in the present study based on the original egg and embryo mass values.