  In Paper 1 of this series we identified an 80 co-moving Mpc filament of
candidate Lyman-alpha emitting galaxies at redshift 2.38. In this paper we
present spectroscopy of the 37 galaxy candidates. Our spectroscopy reached a
surface brightness limit of 5.0E-17 erg/cm^2/s/arcsec^2. Of the 14 candidates
down to this limit, 12 were confirmed to be Lyman-alpha emitting galaxies at
the filament redshift. We also obtained spectral confirmation for six of the
lower surface brightness candidates, all of which also lay at the filament
redshift. In addition, we identify a foreground cluster of QSOs at z=1.65.
