  We provide evidence of an intermediate Haldane phase in a spin-2 quantum
chain. By combining effective field theory and numerical approaches, we show
that the phase diagram of the proposed model includes SO(5) Haldane,
intermediate Haldane, and large-D phases. We determine the characteristic
properties of these phases, including edge states, string order parameters, and
degeneracies in the entanglement spectrum. The symmetries responsible for the
degeneracy patterns observed in the entanglement spectrum are also discussed.
