Shell small, 5-6 mm., narrowly ovate, with a moderately tall spire and an ovate body-whorl, terminating in a very short weakly emarginate anterior canal. Protoconch papillate of 1,5 whorls, sculptured with granulose spiral threads, followed by an angulate whorl of closely spaced axials, crossed by two weak spiral cords. Adult sculpture coarsely clathrate, consisting of heavy rounded axials, overridden by almost equally strong spiral cords, which are gemmulate to subspinose at the points of intersection; two spiral cords on the spire whorls. Aperture narrow, with parallel sides. Outer lip with a heavy external varix, and callus-ridged within, the callus bearing 3 or 4 rather strong tubercles. Sinus subsutural, a shallow but distinct excavation of the outer lip. Inner lip with a narrow defined callus but no processes. Colour pale yellowish-brown.
Range — Typically, Recent, Mediterranean and Miocene of France, Hungary and Italy. The genus has been recorded also from the Recent fauna of North West America and the Eocene of Egypt, but verification is required. The Indonesian corbula Thiele, 1925 resembles Clathtromangelia in general facies but has a different protoconch.