  We present the results of the HI observations of four dust-lane ellipticals.
The HI detected is regularly distributed in disks or rings. Moreover, in three
of the four objects we have detected a very large amount of neutral hydrogen
with values of M_HI/L_B that are at the end of the distribution characteristic
of ellipticals and similar to what typically found in spiral galaxies. Thus,
these dust-lane ellipticals may represent the results of major mergers as seen
at a late stage of the evolution. The regular HI distribution and kinematics
has allowed to derive values of M/L_B~20 at distances of ~5 R_e from the
centre. Evidence for an increase of the dark matter contribution at larger
radii can also be derived from the flat rotation curves observed in some of the
observed galaxies.
