  I consider in light of MOND the three debris galaxies discussed recently by
Bournaud et al.. These exhibit mass discrepancies of a factor of a few within
several scale lengths of the visible galaxy, which, arguably, flies in the face
of the cold dark matter paradigm. I show here that the rotational velocities
predicted by MOND agree well with the observed velocities for each of the three
galaxies, with only the observed baryonic matter as the source of gravity.
There is thus no need to invoke a new form of baryonic, yet-undetected matter
that dominates the disc of spiral galaxies, as advocated by Bournaud et al. I
argue on other grounds that the presence of such ubiquitous disc dark matter,
in addition to cold dark matter, is not likely.
