  We analyze BATSE time-tagged event (TTE) data for short gamma-ray bursts (T90
duration < 2.6 s), studying spectral lag vs. peak flux and duration, as well as
the number of distinct pulse structures per burst. Performing the
cross-correlation between two energy bands, we measure an average lag ~ 20-40 x
shorter than for long bursts, and a lag distribution close to symmetric about
zero - unlike long bursts. Using a "Bayesian Block" method to identify
significantly distinct pulse peaks, we find an order of magnitude fewer pulses
than found in studies of long bursts. The disparity in lag magnitude is
discontinuous across the ~ 2-s valley between long and short bursts. Thus,
short bursts do not appear to be representable as a continuation of long
bursts' temporal characteristics.
