Calliostoma megaloprepes is a species of medium-sized sea snail, a marine gastropod mollusc in the family Calliostomatidae. Some authors place this taxon in the subgenus Calliostoma (Maurea) . Description The height of the shell attains 40 mm. Distribution This marine species occurs off New Zealand. References Marshall, 1995. A revision of the recent Calliostoma species of New Zealand (Mollusca:Gastropoda:Trochoidea). The Nautilus 108(4):83-127 Further reading Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 megaloprepes Gastropods of Australia Gastropods described in 1948