Drillia regiaDrillia regia is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.The database Gastropods.com regards this species as a synonym of Neodrillia enna, in turn regarded by WoRMS as a synonym of Drillia enna.DescriptionThe length of the shell varies between 25 mm and 60 mm.DistributionThis species occurs in the Southwestern Pacific Ocean and off the Philippines.