Ratio of HI mass to stellar mass as a function of stellar mass for the 16 galaxies with HI detections (blue circles). The blue line is the running mean of the M_HI/M_* of the parent sample that has HI detections. The black line is the M_HI/M_* fit from Evoli et al. (2011). The green and magenta regions are the M_HI/M_* fractions in four mass bins in Cortese et al. (2011). The cyan regions estimate the ALFALFA detection limit starting at a distance of 90 Mpc (hatched region) to 200 Mpc (solid region).