The recoil catcher technique and gamma spectrometric assay of fission products were used to measure angular distribution of 17 fission products in B, C, and 0 induced fission of Th at near barrier energies. The observed mass dependence of anisotropies of fission products in these systems is very different from that of p and n induced fission of Th at similar excitation energies. It has been suggested that the difference in the rotational energy for the symmetric and asymmetric modes for large compound nucleus spins could be responsible for the observed variation. No systematic change in the mass dependence of anisotropies across the Bussinaro-Gallone point was observed. For 0 induced fission of Th, sharp variation in anisotropies has been observed in the mass region 120 -135. This has been attributed to transfer induced fission.PACS number(s): 25.85.Ge

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