(General comments about the panels as in Fig. A.1.) IRAS F22491-1808: this is a double nucleus system (separation of 2.6 kpc) with several knots and condensations located in both the nuclear region and the tidal tails observed to the east and northwest of the system. The Hα image shows a more compact morphology than that of the continuum, with no evidence for the already mentioned tidal tails. This system seems to be kinematically disturbed, with a poorly defined minor rotation axis, although a rotation pattern is visible. The velocity dispersion map has a quite irregular structure, with an offset peak with respect to the nucleus and high values in correspondence of low Hα surface brightness. There are two regions where the spectra profiles suggest the presence of an extra broad component. The scale is of 1.47 kpc/′′.