SMUDGes V. The complete catalog of UDGs from DR9

From the sample with estimated distances, we obtain a sample of 585 UDGs ({mu}_0,g_>=24mag/arcsec^2^ and r_e_>=1.5kpc) over 20000 square degrees of sky in various environments.

We conclude that UDGs in our sample are limited to 10^10^<~M_h_/M_{sun}_<~10^11.5^ and are on average a factor of 1.5-7 deficient in stars relative to the general population of galaxies of the same total mass. That factor increases with increasing galaxy size and mass up to a factor of ~10 when the total mass of the UDG increases beyond M_h_=10^11^M_{sun}_. We do not find evidence that this factor has a dependence on the UDGs large-scale environment.