The existence of new particles decaying in a jet or lepton pair
is probed with the Run II data collected by the Tevatron p anti-p collider at
s**(1/2) = 1.96 TeV.  Searches performed on both jet and lepton data collected
by the CDF and D0 detectors do not show signs of any new resonance within
the considered mass range.  The sensitivity achieved by these searches leads
to 95% C.L. limits on the production cross-section times branching ratio for
axigluons, flavour universal colorons, excited quarks, colour octet
techni-rho, E_6 diquarks, new gauge bosons and Randall-Sundrum gravitons.
Excluded mass regions for these models are also computed.