See text Clavus is a genus of small sea snails, marine gastropod mollusks in the family Drilliidae.

[1][2] Apart from the general characteristics of the genera in the family Drilliidae, the species in the genus Clavus have a shell with peripheral tubercles, spines or wing-like processes.

[4] The shell of Clavus is characterised by the following features:— Flat indefinite fasciole, indicated only by the curve of growth lines.

Tryon correctly preserved the genus for smooth specimens with a short body whorl, long spire, nodulous shoulder, no spiral sculpture, a wide, deep anal sulcus adjacent to the suture and, in the completely adult, a marked subsutural callus on the body.

[6] The species in this genus occur in the Red Sea, In the Indian Ocean off Mozambique; also off Indonesia, New Caledonia, Papua New Guinea, the Philippines, Solomon Islands, Japan and Australia (New South Wales, Northern Territory, Queensland, Western Australia).