(General comments about the panels as in Fig. A.1.) IRAS 12596-1529 (MGC-02-33-098): this system is interacting with MCG-02-33-099, at ~37 kpc in the southeast direction. The HST image clearly shows two distinct galaxies in interaction, still visible in the VIMOS Hα flux intensity map, where the nuclei are separated by ~5 kpc. For this system it was not possible to reliably separate the contribution of each object. The two galaxies have been considered as a whole systems, deriving the mean kinematic values reported in Table 4. However, the velocity field shows a quite regular pattern. The velocity dispersion map does not have a well-defined structure with a maximum of ~200 km s^-1 in the northern part of the western galaxy: in this region low-Hα surface brightness spectra are well fitted using one component and for this reason show a broader profile. However, no kinematic classification can be inferred from the whole system. The spatial scale is of 0.324 kpc/′′.