M_• − M_dynσ² (left) and M_• − M _⋆ σ² (right) relations for the sample of N = 52 galaxies extracted from the data set of Sani et al. (2011). The symbols represent elliptical galaxies (red ellipses), lenticular galaxies (green circles), barred lenticular galaxies (dark green circles), spiral galaxies (blue spirals), barred spiral galaxies (dark blue barred spirals), and dwarf elliptical galaxies (orange ellipses). The black lines are the lines of best fit.