Sclerotised hard parts of ancyrocephalus cornus Lim, 1987, A.poculus Lim, 1987, A.clavicus Lim, 1987, A.malayanus Lim, 1987, A.selangoricus Lim, 1987, A.bulbus Lim, 1987, and A.lanceatus Lim, 1987 - Lim, S.L.H. (1987)