Distribution of the properties of the Q1 dwarf candidates with spectroscopic redshift (pale blue-violet) overlaid on the properties of all galaxies in the MER catalogue (pale brown) and the automatically selected dwarf candidates with spectroscopic redshift in all 25 Q1 tiles (dark grey). The absolute magnitudes of the Euclid ERO Perseus dwarfs from Marleau et al. (2025), at a distance of 72 Mpc, are shown for comparison (dark red). The Perseus dwarfs are closer than the majority of the dwarf candidates in the Q1 data and therefore are detected to fainter absolute magnitudes. The physical sizes of the Q1 and Perseus dwarf candidates (dark red) cover a similar range, assuming that the Perseus dwarfs have a semimajor axis approximately equal to twice their effective radius (2R_e).