Shell slender, conical, with flattened whorls. The surface of the shell has a smooth appearance, its microscopic spiral threads being detectable only at high magnification. Thin prosocline growth lines are also present. The columellar zone has no umbilicus, but a fold is evident. Base of the body whorl well rounded. The top-whorl is heterostrophic and makes an angle of about 130° with the shell axis ("type B" according to van Aartsen, 1987).
white-yellowish with a brown spiral band near the suture.
common size :
9-10 mm in length.
This species can be easily recognised by the slender-conical, white shell with a spiral brown band just above the suture, and the presence of a clear visible columellar fold. Like S. fasciata (Jickeli, 1882), this species could be confused with the Mediterranean Tiberia minuscula (Monterosato, 1880), but the general feature of the shell, and in particular the clear columellar fold, make the species distinguishable from the native ones. Furthermore, the shell of S. cinctella is more slender than that of S. fasciata, with a less conical shape and a more rounded base of the last whorl.
BIOLOGY / ECOLOGY
Pyramidellidae are ectoparasites, mainly of sedentary polychaetes and molluscs.