Mean PM of candidate stream member GCs (red filled circles) are compared to the distribution of the 4S RR Lyrae variables (grey dots). The comparison is performed in the pmdec vs. pmra (left panels) and in the pmdec vs. heliocentric distance (right panels) planes in three different ranges of distance: 15.0 kpc < D_⊙ < 25.0 kpc (upper panels), 25.0 kpc < D_⊙ < 32.0 kpc (middle panels), and 60.0 kpc < D_⊙ < 100.0 kpc (lower panels). The 4S RR Ly lying in the proper range of distance are plotted in dark grey, while the whole sample is plotted in pale grey in the left-hand panels.