Velocity dispersion vs. richness for the SCGF sample with scaling relations overplotted. Data points for Gaussian clusters are marked with purple dots and for non-Gaussian with black dots with 1σ errors on both axes. Purple lines show the fits for Gaussian clusters, black lines – for non-Gaussian clusters and the red dashed line – for the median of the full sample. The thin lines display 0.5% of all the linmix MCMC chains. For the bold lines, we take the median values for each sample.