Shape parameter – luminosity (Sérsic n−M_r) relation for early-type dwarf galaxies. The known Centaurus dSph dwarfs in the survey region (gray squares), Virgo dEs (plus signs; Binggeli & Jerjen 1998), M 81 dSph dwarfs (stars; Chiboucas et al. 2009), Local Group dSph (crosses; Jerjen et al. 2000a), MJB15 known and candidates dSph (small gray and red squares) and the new dSph known dwarfs and candidates of this study (gray and red squares), respectively. Error bars for our candidates and previously known dwarfs in the survey area come from numerics and are listed in Table 2. The error bars for the absolute magnitudes is globally chosen to be ±0.5 mag. We compare n_B (Virgo) with n_r (M 81, Local Group, MJB15, and this work).