Bulge-to-total luminosity ratio in the g band B/T_g from the bulge and disk decomposition of all EFIGI galaxies with Inclination ≤ 2 as a function of Hubble Type. The color of the points represent the effective radius R_e of the bulge (or Sérsic component for E and cD types). The black dashed line shows the geometric mean value per type, and the vertical bars the estimated uncertainties in this mean (see text for details). There is a correlation between Hubble type and B/T_g with the latter increasing sharply along the sequence toward earlier types. However, there is also a significant dispersion of B/T_g within each type, ranging from ∼0.25 dex for lenticulars to almost 1 dex for late-type spirals, with the other trend that larger B/T_g correspond to larger bulge R_e overall, as well as within each type.