  Instabilities of transverse waves due to a constant magnetic field in a
non-degenerate quantum electron-ion plasmas are studied. A new type of
cyclotron oscillation with a small growth rate is disclosed. Excitation of a
new quantum mode is also revealed. Furthermore, the kinetic instabilities of
Alfven waves are discussed and the growth rates are obtained. A novel branch of
waves that we call a magnetic quantum string waves is found.
