Hindsiclava appelii, common name the chocolate turrid, is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
The length of the shell varies between 18 mm and 28 mm.
The shell is narrower than Crassispira callosa (<small>Kiener, 1840)</small>, with more numerous ribs and a longer siphonal canal. Its color is light ochraceous. The shell is indistinctly white-banded.
This species occurs in the Atlantic Ocean off Brazil