Pseudonebularia indentata

Pseudonebularia indentata is a species of sea snail, a marine gastropod mollusk, in the family Mitridae, the miters or miter snails.

Description
The shell is whitish. It is spirally few-ridged. The aperture is narrow and longer than spire. The outer lip is contracted in the middle, strongly crenulated, rather acuminated anteriorly.