Spatial distribution of LSBGs and galaxies with spectroscopic measurements at 0.003 < z < 0.008, similar to that of Fig. 8. Here, LSBGs are plotted separately with r_eff < 15 arcsec (left panel) and r_eff > 15 arcsec (right panel). In the upper part of both panels, the distribution of effective radii of the LSBGs is presented with dark red for the galaxies plotted in their lower panel and light red for the hidden ones.