  We use galaxies detected in a deep ultraviolet XMM-Newton Optical Monitor
image and a model that predicts UV galaxy counts based on local counts and
evolution parameters to constrain galaxy evolution to Z=1.2. The 17' square
2000 angstrom (UVW2 filter) image was taken as part of the XMM-OM team's
guaranteed time program. We detect sources in this image to a flux limit of 2.7
X 10^{-17} ergs/cm^2/s/A, (AB magnitude = 22). Since some of the sources may be
stars, we perform a number of checks, including shape, color and implied
distance to remove stars from the detected counts. We find galaxy number counts
as a function of magnitude roughly in agreement with previous studies, but
again find these counts are in excess of evolution models. The excess counts at
faint magnitudes may provide evidence for either a new population of galaxies
emerging around Z=0.7 or more dramatic evolution than some earlier predictions.
The integrated light from the detected galaxies totals 32--36 ph/cm^2/s/A/sr,
placing a firm lower limit on the integrated UV light from galaxies.
