  We present R-band photometry of the SW Sex-type cataclysmic variable WX
Arietis made in October 1995 and August 1998-February 1999. Contrary to
previous results, we find that WX Ari is an eclipsing system with an orbital
inclination of ~72 deg. The R-band light curves display highly variable,
shallow eclipses ~0.15-mag deep and ~40 min long. The observed eclipse depth
suggests a partial eclipse of the accretion disc. The light curves also show a
wide dip in brightness centred at orbital phase ~0.75 and a hump close to the
opposite phase at ~0.2. The observed dip may be explained by the probable
vertical thickening of the outer rim of the accretion disc downstream from the
bright spot. We also demonstrate that the disc brightness in all SW Sex systems
is nearly the same. This implies that the orbital inclination of these systems
is only a function of eclipse depth.
