  We present a list of candidates for high redshift late-type galaxies in the
field around the z=3.79 quasar PC1643+4631A. Deep U,V and R imaging has been
used to search for objects with a strong Lyman break between U and V,
characteristic of galaxies with high hydrogen column densities at $z\sim 3$. A
further study of the red objects detected by Hu & Ridgway (1994) has been done,
allowing the temptative identification of many of them as low redshift ($z\sim
0.4$) elliptical galaxies.
