Fraction of galaxies classified as C (SF along bar), as seen in FUV images, as a function of the decimal logarithm of the total stellar mass. Left panel: sample that includes images from the GALEX All-Sky Imaging Survey (AIS, with fairly short exposure times); right panel: only galaxies from the FUV sample with exposure times of 1000 s or more (i.e., excluding AIS). The numbers in each of the mass bins are shown above the bars for each M_*-bin (of width 0.5 dex).