Abstract
The flattening distribution of some morphological types of galaxies is compared in two regions with different surface densities. First, two different samples (UGC and RC2) with axial ratios measured roughly in the same spectral band but at different isophotal levels are compared. Then, two UGC samples with diameters measured at two different spectral bands are analysed. The results show no significant differences between the blue and red axial ratio distributions; furthermore no significant differences are observed in the galaxy flattening in relation to the environment density. On the other hand, a slight trend of different flattening distribution according to the isophotal level is suggested by the data.
