Left panel: spatial distribution of the PNs associated with the blue secondary peak in the PN LOSVD (<2800   km   s^-1). Central panel: spatial distribution of the PNs associated with the central ICL component (2800   km   s^-1 to 4450   km   s^-1). Right panel: spatial distribution of the PNs associated with the secondary red peak at  > 4450   km   s^-1 in the PN LOSVD. The black triangles indicate NGC 3311 (center) and NGC 3309 (north-west of center), respectively. North is up and east is to the left.