  Snake orbits are trajectories of charge carriers curving back and forth which
form at an interface where either the magnetic field direction or the charge
carrier type are inverted. In ballistic samples their presence is manifested in
the appearance of magnetoconductance oscillations at small magnetic fields.
Here we show that signatures of snake orbits can also be found in the opposite
diffusive transport regime. We illustrate this by studying the classical
magnetotransport properties of carbon tubular structures subject to relatively
weak transversal magnetic fields where snake trajectories appear in close
proximity to the zero radial field projections. In carbon nanoscrolls the
formation of snake orbits leads to a strongly directional dependent positive
magnetoresistance with an anisotropy up to 80%.
