Clavatula decorata is a species of sea snail, a marine gastropod mollusk in the family Clavatulidae.
Description The length of the shell attains 21 mm, its width 8 mm.
(From the original description) The fusiform shell is one of striking character. The spire is acutely turreted and contains 10 whorls. The whorls are unusually concave, with a stout prominent keel, crossed by numerous oblong somewhat oblique white tubercles or short plicae, which are rendered more conspicuous by a brown intersecting spiral line.Sowerby, G.B., III. (1916) Descriptions of seven new species of Mollusca belonging to the genera Drillia, Clavatula, Epitonium, Cantharidus, Bittium, Fissurella, and Cardium. Proceedings of the Malacological Society of London, 12, 74–76, pl. 3.
Distribution This species occurs in the Atlantic Ocean off Sierra Leone.
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