We continue our studies on stellar latitudinal differential rotation .
The presented work is a sequel of the work of Reiners et al .
who studied the spectral line broadening profile of hundreds of stars of spectral types A through G at high rotational speed ( v \sin { i } > 12 km s ^ { \mathrm { -1 } } ) .
While most stars were found to be rigid rotators , only a few tens show the signatures of differential rotation .
The present work comprises the rotational study of some 180 additional stars .
The overall broadening profile is derived according to Reiners et al .
from hundreds of spectral lines by least-squares deconvolution , reducing spectral noise to a minimum .
Projected rotational velocities v \sin { i } are measured for about 120 of the sample stars .
Differential rotation produces a cuspy line shape which is best measured in inverse wavelength space by the first two zeros of its Fourier transform .
Rigid and differential rotation can be distinguished for more than 50 rapid rotators ( v \sin { i } > 12 km s ^ { \mathrm { -1 } } ) among the sample stars from the available spectra .
Ten stars with significant differential rotation rates of 10-54 % are identified , which add to the few known rapid differential rotators .
Differential rotation measurements of 6 % and less for four of our targets are probably spurious and below the detection limit .
Including these objects , the line shapes of more than 40 stars are consistent with rigid rotation .