  We report 1606 new proper motion systems in the southern sky (declinations
-90 degrees to -47 degrees with 0.40 arcsec yr^-1 > mu >= 0.18 yr^-1. This
effort is a continuation of the SuperCOSMOS-RECONS (SCR) proper motion search
to lower proper motions than reported in Papers VIII, X, XII, and XV in this
series. Distance estimates are presented for the new systems, assuming that all
stars are on the main sequence. We find that 31 systems are within 25 pc,
including two systems -- SCR 0838-5855 and SCR 1826-6542 -- we anticipate to be
within 10 pc. These new discoveries constitute a more than ten-fold increase in
new systems found in the same region of sky searched for systems with mu >=
0.40 arcsec yr^-1, suggesting a happy hunting ground for new nearby slower
proper motion systems in the region just north (declinations -47 degrees to 0
degrees, much of which has not been rigorously searched during previous
efforts.
