Figure 1. Visually gained growth curves have been added for single specimens that leave some doubt as to the existence of an inflexion point. I n this paper a cross-sectional evaluation of growth behaviour is carried out with nine funtions using nonlinear regressions. Five growth functions yield almost equally good results with a final valve height just below 100 mm. An inflexion point is either present in early youth or lacking altogether, depending on the growth function used.