Mangilia planilabroides Tryon, 1884 (original combination) Citharomangelia planilabroides is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

[1] The length of the shell attains 20 mm.

The shell is fusiform, smooth, narrowly, slopingly shouldered; brown with a superior white zone.

[2] The species has been renamed by G.W.

Tryon as Mangilia planilabroides as it had been already described in 1846 by L.A. Reeve as Mangilia planilabrum, a name already used by him for Mangilia planilabrum described as Pleurotoma planilabrum Reeve, 1843 This marine species occurs off the Philippines