DDO 161 and UGCA 319: an isolated pair of nearby dwarf galaxies
  We report HST/ACS observations of two nearby gas-rich dwarf galaxies: DDO 161
and UGCA 319. Their distances determined via the Tip of the Red Giant Branch
are 6.03 (-0.21/+0.29) Mpc and 5.75+-0.18 Mpc, respectively. The galaxies form
an isolated pair dynamically well separated from the nearest neighbors: KK 176
(7.28+-0.29 Mpc) and NGC 5068 (5.16+-0.21 Mpc). All four galaxies have a bulk
spatial peculiar velocity towards the Virgo cluster of ~158+-17 km/s in the
Local Group rest frame and ~330 km/s with respect to the cluster center.
