Top: redshift distribution of the AGES H I detections (cyan hatched histogram) compared to SDSS spectroscopic galaxies (solid grey histogram), and ALFALFA detections (empty brown histogram) within the AGES volume. The velocity range of A1367 is indicated with the horizontal bar. Bottom: distribution of M_H I as a function of distance to the source, assuming Hubble flow distances. The black, dashed line shows the mass of a galaxy with velocity width of 200 km s⁻¹ detected at 6.5σ. Certain and uncertain detections are shown with blue stars and brown circles, respectively. [Link]