hell small, ovoid-elongate, fragile. Protoconch white, consisting of 4 whorls, apparently smooth, with a small spiral cord on the lower part of the whorls close to the suture. Under magnification, small riblets may be seen in the suture. Teleoconch of about 4-7 whorls, slightly convex, with three nodulous spiral cords, which appear from the beginning. These spiral cords are of similar size and regularly separated. The upper one is less prominent, and has a slightly brown colour in a narrow band. The other two are white, as well as the suture. At the periphery, one other narrow brown nodulous cord appears, and below, another, scarcely prominent cord is present in a concave area. The base is white. The aperture is rounded, the siphonal canal is short and open. Etymology: After Ramon Beneito, malacologist from Tarragona, Spain.

The present species could be the one represented in Ode (1989) as Joculator brassica Olsson and Harbison, 1953.
Cerithiopsis beneitoi spec. nov. must be compared with the following species:
- C. lata has a wider and more solid shell, the brown colour is darker and includes the suture and sometimes spiral cord 2; the number of axial ribs is smaller, and its protoconch has neither a spiral cord nor riblets at the suture.
- C. io also has a wider and more solid shell, the brown colour is well-marked on the whole of spiral cord 1, the nodules are larger; there is not a concave area below the periphery and the base is brown. The protoconch has not got any sutural riblets.

Known from northern and southern Cuba and from Nicaragua. Type locality: Rancho Luna, Cienfuegos Bay, at 45 m.