Follow-up spectroscopy gathered at the INT and WHT for some candidates of Table 4, and SDSS spectra that were available for some others from Tables 4 and 5 (last four panels). The first Balmer lines are indicated as dotted vertical lines; dashed vertical lines indicate the HeI spectral lines; HeII4686 is marked with a dashed-dotted line; the G-band is also indicated when present.