Axis ratio distributions for our whole sample of massive galaxies according to their visual morphology. Vertical dashed lines are the median values of each histogram (0.70, 0.54 and 0.59, respectively). In order to have a local reference, we also overplotted our SDSS sample axis ratio distribution using the thin dotted line. The axis ratio distribution for the discs is rather symmetrical, but this is not the case for early-type objects, which peak at higher axis ratio values. Van der Wel et al. (2011) argued that massive galaxies with axis ratios ≲0.5 are most probably related with late-type objects, as this histograms confirm. Interacting/peculiar galaxies should be taken out of these considerations. The histograms are also in agreement with the estimations of axis ratio distributions for local early-type and late-type objects (Ryden, Forbes & Terlevich 2001; Ryden 2004). This fact highlights the reliability of our visual morphological classification.