Redshift distribution of XLSSsC N01 cluster virial members divided into seven substructures, and the relative X-ray contours. Left panels: redshift distribution of the virial members in each substructure, as indicated in the labels. The redshift binning is the same in all histograms, and the x-axis extension depends on the redshift range covered by each substructure, for a better visualisation. The mean redshift of the substructure is shown with a vertical red dashed line. Right panels: CFHTLS i-band image of the region surrounding the structures with X-ray contours superposed in green. Blackcrosses indicate the centre of the X-ray emission of point sources. The physical extension of the area in the sky is indicated within each panel.