WFI R-band image (20′ × 25′) centered on A2384. Galaxies identified as cluster members from spectroscopy (flags 0 and 1) are marked with different symbols as in the previous cases (purple squares: [24 000, 28 000] km s^-1, cyan diamonds: [28 000, 29 000] km s^-1 and orange circles: [29 000, 31 000] km s^-1). Isocontours corresponding to red sequence galaxy density maps at R < 19 are superimposed. The velocity histograms of the three regions delimited by circles with 3 arcmin radius, which include the two subclusters and the intermediary region, are displayed in Fig. 18. North is up and East is to the left.