Contrary to Sugihara''s (1981) claim, the distributions of slope values from log-log species-area curves (z) can be accounted for as the distribution of the product of 2 independent variables r and sy/sx. This strengthens the point that many slope values between 0.2-0.4 are expected independently of biological grounds. Slope values between 0.2 and 0.4 may have no biological significance. Rather than trying to interpret the distribution of slope values, attention should be focused on explanations of the observed distributions of the correlation coefficient, r, and the ratio, sy/sx.