Auriculella turritella

The length of the shell attains 8.6 mm, its diameter 3.6 mm. (Original description) The shell is imperforate, dextral, and turrited with an elongate form. It possesses a chestnut color and a rather thin, semidiaphanous texture that lacks a glossy finish. Under a lens, the surface reveals minute and regular striations that follow the lines of growth. The spire is elongately conic and terminates in a somewhat obtuse apex. The suture is marginate and dark chestnut in color, though it is scarcely impressed into the shell's surface. There are 9 1/2 whorls in total; the embryonic whorls are rounded, while the remaining whorls are flat. These whorls increase slowly and regularly, creating a compact appearance, with the body whorl being somewhat rotund and subsaccate at its base. The aperture is ovate and sits at an angle that is hardly oblique. Inside the aperture, the parietal lamella is relatively small, whitish, and scarcely oblique. A minute, transparent, and elongate palatal fold is situated deeply within the shell, positioned nearly midway between the columella and the periphery. The columella is twisted and characterized by a thick callus with two strong folds. …