Left panel: 20 × 20   arcmin² DSS image of the Hydra I cluster. The two bright galaxies at the field center are NGC 3311 (center) and NGC 3309 (north-west of center). The blue circles indicate galaxies with v_sys < 2800   km   s^-1, the green circles galaxies with 2800   km   s^-1 < v_sys < 4450   km   s^-1 (only those within 10 arcmin around NGC 3311 and with m_R > 15.37), and the red circles galaxies with v_sys > 4450   km   s^-1. Right panel: spatial distribution of Hydra I galaxies in the same area of 20   arcmin² centered on NGC 3311. Squares indicate galaxies from the catalog of Christlein & Zabludoff (2003) and crosses indicate galaxies from Misgeld et al. (2008). The color of the symbols refers to the velocity components in the PN LOSVD as described in Fig. 5. The two diamonds locate NGC 3311 and NGC 3309. The orange square shows the FoV used in the FORS2 MSIS observations.