aWe describe QCH Kahler surfaces (M, g, J) of generalized orthotoric type. We introduce a distinguished orthonormal frame on (M, g) and give the structure equations for (M, g, J). In the case when the opposite Hermitian structure I is conformally Kahler and (M, g, J) is not hyperkahler we integrate these structure equations and construct orthotoric Kahler surfaces in a new way. We also investigate the hyperkahler case. We prove in a simple way that if (M, g, J) is a hyperkahler surface with a degenerate Weyl tensor W- (i.e. a QCH hyperkahler surface) then among all hyperkahler structures on (M, g) there exists a Kahler structure J(0) such that (M, g, J(0)) is of Calabi type or of orthotoric type.
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