Table 2: Results of kinematical and spatial analysis.
${\rm Sample}$ ${N_{\rm g}}$ $\phantom{249}{\langle V \rangle }\phantom{249}$ $\phantom{24}\sigma_{\rm V}^{~~~~~~~{a}}\phantom{24}$
    $\phantom{249}{\rm km\ s}^{-1}\phantom{249} $ $\phantom{2}{\rm km\ s}^{-1}\phantom{24}$

${\rm Whole\ system}$		 85 $91~754\pm192 $ $\rm 1767_{-99}^{+121}$
${\rm KMM\ partitions}$      
${\rm KMMa}$ 66 $90~939\pm161 $ $\rm 1301_{-84}^{+130}$
${\rm KMMb}$ 19 $94~846\pm110 $ $\phantom{1}462_{-55}^{+58}$
${\rm KMM3Da}$ 57 $90~616\pm156 $ $\rm 1170_{-100}^{+116}$
${\rm KMM3Db}$ 28 $94~370\pm163 $ $\phantom{1}841_{-108}^{+177}$
${\rm 2D\ subsamples}$      
$R<0.4{\rm\ Mpc, low}\ V$ 23 $90~537\pm180 $ $\phantom{1}841_{-169}^{+319}$
$R<0.4{\rm\ Mpc, high}\ V$ 12 $94~821\pm195$ $\phantom{1}631_{-103}^{+233}$
$R>0.4{\rm\ Mpc, N} $ 32 $91~262\pm238$ $\rm 1319_{-118}^{+176}$
$R>0.4{\rm\ Mpc, S} $ 18 $93~081\pm476$ $\rm 1940_{-317}^{+467}$
$R>0.4{\rm\ Mpc, W} $ 36 $91~793\pm276$ $\rm 1628_{-143}^{+206}$
$R>0.4{\rm\ Mpc, E} $ 14 $91~676\pm500$ $\rm 1779_{-189}^{+276}$
$R>0.4{\rm\ Mpc, NW} $ 24 $91~311\pm278$ $\rm 1325_{-146}^{+218}$
${\rm Dressler\ \&\ Schectman\ substructure}$      
${\rm DS, low}\ V$ 17 $89~932\pm202 $ $\phantom{1}798_{-104}^{+142}$
${\rm DS, high}\ V$ 11 $94~046\pm269$ $\phantom{1}834_{-114}^{+157}$
a  We use the biweight and the gapper estimators by Beers et al. (1990) for samples
  with ${N_{\rm g}}\ge$ 15 and with ${N}_{\rm g}<15$ galaxies, respectively (see also Girardi et al. 1993).

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