  The effect of nuclear deformation on the isoscalar toroidal and compression
dipole modes in prolate $^{170}$Yb is studied in the framework of the
random-phase-approximation method with a representative set of Skyrme forces
(SV-bas, SLy6, SkM$^*$ and SkI3). It is shown that the deformation crucially
redistributes the strength of both modes. The compression mode has the same
sequence of $\mu$=0 and 1 branches as the isovector giant dipole resonance
where for prolate nuclei the $\mu=0$ mode is lower in energy ($\mu$ being the
projection of the axial momentum of the mode). Instead, the toroidal mode
exhibits an anomalous (opposite) sequence where the $\mu$=1 branch precedes the
$\mu$=0 one.
