  This articles is concerned primarily with the intrinsic anisotropy in the
angular distribution of 2281 gamma-ray bursts (GRBs) collected in Current BATSE
Gamma-Ray Burst Catalog until the end of year 1998, and, second, with intrinsic
anisotropies of three subclasses ("short", "intermediate", "long") of GRBs.
Testing based on spherical harmonics of each class, in equatorial coordinates,
is presented. Because the sky exposure function of BATSE instrument is not
dependent on the right ascension $\alpha$, any non-zero spherical harmonic
proportional either to $P_n^m(\sin \delta) \sin m \alpha$ or to $P_n^m(\sin
\delta) \cos m\alpha$ with $m \neq 0$ ($\delta$ is the declination),
immediately indicates an intrinsic non-zero term. It is a somewhat surprising
result that the "intermediate" subclass shows an intrinsic anisotropy at the
$97\%$ significance level caused by the high non-zero $P_3^1(\sin \delta) \sin
m \alpha$ harmonic. The remaining two subclasses, and the full sample of GRBs,
remain isotropic.
