Drillia inchoata
Drillia inchoata is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Description
The height of the shell is 21.3 mm, and the width is 9.0 mm; the height of the aperture is 9.1 mm.The shell is truncated and spindle-shaped, with a light yellow color. It consists of 9 1/2 whorls, each of which, except for the protoconch, is concave in its upper half and convex in its lower half. The shell is equipped with numerous spiral ridges and approximately 15 to 16 wavy transverse ribs. Additionally, there are microscopically fine growth lines between the transverse ribs. Immediately before the aperture, there is a knobby swollen transverse rib that is projected to the right.