  In this Paper we investigate the kinematical properties of early-type dwarfs
by significantly enlarging the scarce observational sample so far available. We
present rotation curves and mean velocity dispersions for four bright dwarf
ellipticals and two dwarf lenticular galaxies in the Virgo cluster. Most of
these galaxies exhibit conspicuous rotation curves. In particular, five out of
the six new galaxies are found to be close to the predictions for oblate
spheroids flattened by rotation. Therefore, and contrary to the previous
observational hints, the present data suggest that an important fraction of
dwarf early-type galaxies may be rotationally supported.
