\begin{table}%t4
        \caption{\label{tabkmm}Kinematical analysis for KMM groups.}
                $$
         \begin{array}{l r l l}
            \hline
                       \hline\noalign{\smallskip}
           {\rm Sample} & N_{\rm g} & \phantom{249}{\langle v\rangle}\phantom{249} & 
\phantom{24}\sigma_{v}^{{a}}\phantom{24}\\
& &\phantom{249}{\rm km\ s^{-1}}\phantom{249} 
&\phantom{2}{\rm km\ s^{-1}}\phantom{24}\\
            \hline\noalign{\smallskip}
{\rm KMM2g1} & 12 &82~545\pm\phantom{1}41 &\phantom{1}134_{-38}^{+20}\\\noalign{\smallskip}
{\rm KMM2g2} & 57 &85~273\pm148 &1110_{-91}^{+99}\\
\noalign{\smallskip}\hline\noalign{\smallskip}
{\rm KMM3g1} & 12 &82~545\pm\phantom{1}41 &\phantom{1}134_{-38}^{+20}\\\noalign{\smallskip}
{\rm KMM3g2} & 49 &84~951\pm126 &\phantom{1}875_{-75}^{+101}\\\noalign{\smallskip}
{\rm KMM3g3} &  8 &87~557\pm104 &\phantom{1}260_{-30}^{+54}\\
\noalign{\smallskip}\hline\noalign{\smallskip}
{\rm KMM4g1} & 14 &82~559\pm\phantom{1}56 &\phantom{1}198_{-42}^{+54}\\\noalign{\smallskip}
{\rm KMM4g2} & 35 &84~616\pm104 &\phantom{1}605_{-43}^{+64}\\\noalign{\smallskip}
{\rm KMM4g3}^{{b}} &  7 &85894\pm\phantom{1}19 &\phantom{10}51_{-82}^{+82}\\\noalign{\smallskip}
{\rm KMM4g4} & 13 &87~238\pm116 &\phantom{1}394_{-41}^{+69}\\
\noalign{\smallskip}\hline\noalign{\smallskip}
{\rm KMM5g1} & 14 &82~559\pm\phantom{1}56 &\phantom{1}198_{-42}^{+54}\\\noalign{\smallskip}
{\rm KMM5g2} & 10 &83~682\pm\phantom{1}60 &\phantom{1}176_{-12}^{+68}\\\noalign{\smallskip}
{\rm KMM5g3} & 24 &84~949\pm\phantom{1}77 &\phantom{1}336_{-28}^{+42}\\\noalign{\smallskip}
{\rm KMM5g4}^{{b}} & 8  &85907\pm\phantom{1}19 &\phantom{10}51_{-82}^{+82}\\\noalign{\smallskip}
{\rm KMM5g5} & 13 &87~238\pm116 &\phantom{1}394_{-41}^{+69}\\
              \noalign{\smallskip}     \hline
         \end{array}
$$
\begin{list}{}{}  
\item[$^{{a}}$] We use the biweigth 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. \cite{gir93}). 
\item[$^{{b}}$] We list the value of
${\sigma_v}$ before the correction for the estimated errors in
the redshift measures 
since the correction leads to a negative value.
\end{list}
         \end{table}