See text for a general description of the figure. NGC 2685: the Hα − [NII] lines are unblended in both spectra. [O I] lines are not present in the HST/STIS spectrum, thus [S II] lines were used to model the other profiles. In the Palomar spectrum, [O I] lines are visible, however, no significant improvement was seen by using them to model the rest of the emission lines. All the lines are well-reproduced with a single narrow Gaussian component.