Mangelia decaryi is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. Description The length of the shell attains 13 mm, its diameter 4 mm. This rather solid shell had a high spire with 8 convex whorls, separated by a distinct suture. The whorls in the protoconch are smooth. The others show axial plicae that are a little arcuate and become sigmoid on the body whorl. The aperture is rather wide and lacks a siphonal canal at its base. The columella shows a callosity that becomes rather thick at the top. The outer lip is incrassate, bends off inwards and ends at the top into a large and deep sinus. The color of the shell is white, banded in the upper whorls by a series of brown spots between the axial plicae. Distribution This marine species occurs off Madagascar References External links Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1-1295. decaryi Gastropods described in 1932