\begin{table}%t6
\caption{Featureless sedentary HBL.}
\label{featureless}
\small%\centerline
{
\begin{tabular}{llcllllc}
\hline\hline
Name &  $V_{\rm mag}$ & \multicolumn{1}{c}{$z$} & & & Name & $V_{\rm mag}$ & \multicolumn{1}{c}{$z$}\\
& & \multicolumn{1}{c}{[lower limit]} &&& & & \multicolumn{1}{c}{[lower limit]}  \\
(1) & (2) & \multicolumn{1}{c}{(3)} & & & (1) & (2) & \multicolumn{1}{c}{(3)}\\
\hline 
(our sample) & & &&& (literature)& & \\
SHBLJ001527.9+353639            & 18.3  & 0.650 &&& SHBLJ005816.8+172310$^{(b)}$    &  19.2 & /      \\ 
SHBLJ004208.0+364112            & 18.0  & 0.623 &&& SHBLJ014040.7$-$075848          &  18.3 & 0.650  \\
SHBLJ012657.2+330730            & 17.5  & 0.497 &&& SHBLJ022716.6+020158            &  18.2 & 0.650  \\
SHBLJ013632.5+390559            & 15.4  & 0.193 &&& SHBLJ023536.6$-$293843          &  17.6 & 0.520 \\
SHBLJ032350.7+071736$^{(a)}$    & 20.3  & /     &&& SHBLJ030416.3$-$283217$^{(c)}$  &  19.3 & /       \\
SHBLJ041112.2$-$394143$^{(a)}$  & 18.8  & /     &&& SHBLJ031422.9+061956            &  18.0 & 0.623    \\
SHBLJ050335.3-111507            & 17.9  & 0.596 &&& SHBLJ035856.1$-$305448          &  18.5 & 0.650   \\
SHBLJ092401.1+053345            & 18.4  & 0.650 &&& SHBLJ042900.1$-$323640          &  17.6 & 0.520   \\
SHBLJ095805.9$-$031740$^{(a)}$  & 19.6  & /     &&& SHBLJ044018.5$-$245933$^{(d)}$  &  19.5 & /         \\
SHBLJ102243.8$-$011302          & 15.5  & 0.202 &&& SHBLJ112348.9+722958            &  18.5 & 0.650   \\
SHBLJ124149.3$-$145558          & 17.3  & 0.455 &&& SHBLJ230634.9$-$110348$^{(e)}$  &  19.2 & /       \\
SHBLJ125015.5+315559$^{(a)}$    & 19.5  & /     &&& SHBLJ235730.0$-$171805          &  17.3 & 0.455    \\
SHBLJ140630.1$-$393509$^{(a)}$  & 19.8  & /     &&&   \\
SHBLJ140630.2+123620            & 20.6  & 0.874 &&&   \\
SHBLJ140659.2+164207            & 18.0  & 0.623 &&&    \\
SHBLJ144506.3$-$032612          & 17.4  & 0.476 &&&    \\
SHBLJ150340.6$-$154113          & 17.5  & 0.497 &&&    \\
SHBLJ151618.6$-$152343          & 18.7  & 0.650 &&&    \\
SHBLJ161204.6$-$043815$^{(a)}$  & 18.9  & /     &&&    \\
SHBLJ175615.9+552217            & 17.6  & 0.520 &&&     \\
SHBLJ205242.7+081038$^{(a)}$    & 19.6  & /     &&&    \\
SHBLJ213151.3$-$251558          & 17.3  & 0.455 &&&     \\
SHBLJ224910.7$-$130002$^{(a)}$  & 18.9  & /     &&&    \\
SHBLJ225147.3$-$320614$^{(a)}$  & 19.0  & /     &&&    \\
SHBLJ230436.8+370507            & 17.8  & 0.570 &&&  \\
SHBLJ230722.0$-$120518          & 18.6  & 0.650 &&&  \\
SHBLJ231028.0$-$371909          & 17.8  & 0.570 &&&    \\
\hline
\end{tabular}}
\smallskip
(a) Low quality spectrum; (b) no published spectrum, \citet{Nass96}; (c) no published spectrum, \citet{Lon02}; (d) no spectrum, \citet{Schwope00}; (e) no spectrum, \citet{Bauer00}.
\end{table}