Morphology distribution in and around the HCGs. In the phase 2 groups (top panels) are shown the outermost contours of Fig. 2. The dashed box corresponds to the area covered in Fig. 2 and the dotted and dashed circles show respectively the virial radius r_vir and the 30′ FWHM of MeerKAT. The size of the symbols is proportional to the stellar mass. Filled symbols represent sources detected in H I, while open circles are non-detections.