Drillia umbilicata is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
It shows prominent, distant ribs, forming a strongly tuberculate shoulder, and revolving striae.
The anal sinus is produced upwards.
The inner lip is thickened below, forming with the axis a false umbilicus.
[3] This species occurs in the demersal zone of the Atlantic Ocean off Sierra Leone and from Gabon to Angola.