We consider transverse dynamics of quasi-one-dimensional (Q1D) spatio-
temporal solitons governed by the nonlinear Schrodinger equation with
the higher-order dispersion. We obtain stable Q1D dark solitons, unsta
ble Q1D anti-dark solitons and stable anti-dark lump solitons in the f
orm of light bullets. (C) 1998 Elsevier Science B.V.