DIAGNOSIS: An elongate Coluzea with a gradate spire of shouldered whorls. Keel scarcely developed and bearing pointed nodules formed by short axial ribs crossing the keel. Spiral sculpture variable in degree of development, consisting of up to five fine lirae on the posterior whorl slope and from four to eight on the anterior slope of the body whorl of which two or three arc often more strongly developed.
DESCRIPTION: Shell elongate, subfusiform with a gradate spire of shouldered whorls cut by a median nodulose keel. Protoconch of 1,5 to 2 whorls, first whorl deviated. Beginning of adult whorls marked by two or three incipient axial ribs and the development of a keel. Axial ribs on later adult whorls stronger and forming pointed nodules where they cross the keel. Posterior whorl slope concave bearing up to five fine lirae. Anterior whorl slope of body whorl regularly convex with four to eight lirae of which two or three are generally better developed. Aperture sub-rectangular, inner lip covered only with a thin glaze. Canal long and twisted.

This species is quite different in appearance from all others of the genus apart from Coluzea rotunda (Barnard). However the early spire whorls are very similar to those of C. radialis (Watson).

TYPE LOCALITY: Off Cape Point, South Africa 720-900 fathoms. OCCURRENCE : Type locality only.