Legend:

Original INT cat = the old photometry table with available redshifts at the time
Marcs_table = the new master tables
New HI = revised optical counterparts for HI detections
OLD HI = the HI table ww used to design the spectroscopic observations (old)
z in HI range = redshifts in the range 0.16 < z < 0.22
Possible HI groups = galaxies near or within an HI detection