  We systematically study the shortest time duration gamma ray bursts and find
unique features that are best interpreted as sources of a galactic origin.
There is a significant angular asymmetry and the V/Vmax distribution provides
evidence for a homogenous or Euclidean source distribution. We eview the
arguments that primordial black hole evaporation can give such GRBs. The rate
of events is consistent with a PBH origin if we assume on enhanced local
density, as are the other distributions. We suggest further tests of this
hypothesis.
