\begin{table}%ta1
\caption{\label{lineidentification} Line identifications.}
%\centerline
{
\begin{tabular}{r r r r r }
\hline \hline 
Nr.&~$T_{\rm A}^*$ & Freq.$^a$ & Im.-freq$^a$ & Identification\\
& mK & MHz & MHz\\ \hline 1 & 4 &{\bf94~903} & 98~126 &HCCC$^{13}$CN~$36{-}35$  \\
2 & 3.5 &94~913& {\bf98~155}&SiC$_4$~$32{-}31$ (im.)\\
3 & 5.5 &95~018&{\bf98~011} &l-C$_3$H$^b$ (im.)\\
4 & 6 & 95~035 & {\bf 97~095} &C$^{36}$S; l-C$_3$H$^b$ (im.)\\
5 & 21 & 95~049&{\bf 97~980} & CS($2{-}1$) (im.) \\
6 & 20 & {\bf 95~087}&97~942 & SiC4~$31{-}30$\\
7 & 1.5 & {\bf U95~115}& 97~914 & \\
8 & 1.5 & {\bf 95~126}& 97~903 & SiCCC$^{13}$C~$32{-}31$\\
9 & 20 & {\bf 142~297} & 151~263 &H$_2$C$_4$~$16_{1,16}{-}15_{2,15}$\\
10& 23&{\bf 142~321} &151~235 & Al$^{37}$Cl~$10{-}9^c$\\
11& 3.5& {\bf 142~345}& 151~215& HCCC$^{13}$CN~$54{-}53$\\
12& 5& {\bf 142~402}& 151~158& SiS~$J=8-7, v=4^d$?\\
13&29 & {\bf 142~410}& 151~150& NaCN~$9_{27}{-}8_{26}^c$\\
14& 5& {\bf U142~489}  &151~071 & \\
15& 40& {\bf 142~502}& 151~058& CCS~$11_{11}{-}10_{10}^c$\\
16& 7&{\bf 142~525} &151~035 & C$^{36}$S~$3{-}2^c$\\
17& 460& {\bf 142~560}& 151~000&~$^{29}$SiS~$8{-}7^c$\\
18& 4&{\bf U142~594} &150~966 & \\
19& 12&{\bf U142~622} &150~940 & \\
20& 7&{\bf 142~675} &150~885 & SiCCC$^{13}$C~$48{-}47$\\
21& 9&142~695&150~865  & artefact\\
22& 850&{\bf 142~730} &150~831 &C$_4$H~$N=15{-}14^c$ \\
23& 9& {\bf 142~755}&150~805 &C$_4$H~$N=15{-}14$? \\
24& 850& {\bf 142~768}&150~793 &C$_4$H~$N=15{-}14^c$\\
 \hline
\end{tabular}}
\smallskip
$^a$  The band from which the line probably originates is given in
bold face; for information, the frequency of the corresponding
image band is also given.  $^b$~Thaddeus et~al. (\cite{thaddeus85}).
$^c$~Cernicharo et~al. (\cite{cerni2000}) and references therein. $^d$~The SiS~$v=4$~$J=8{-}7$~line is at~142~399.8~MHz. A shift of~$1{-}2$~MHz could be possible if the
line is produced in the acceleration region (blue).
\end{table}