Spatial distribution of the likely Hydra I cluster dwarfs in our sample (orange circles), and giant galaxies from Christlein & Zabludoff (2003), green triangles. The dividing magnitude is at M_r = −18.5 mag. The black circle indicates the cluster core radius r_c = 170 h⁻¹ kpc (Girardi et al. 1995), assuming h = 0.72, and the gray area indicates our studied field. The two BCGs, NGC 3311 and NGC 3309 are marked separately as black triangles. The two magenta stars show the position of the two major saturated stars that we masked. In the figure north is up and east is left.