The shell is usually smaller than 25mm.[2] The shell of these sand-dwelling micromollusks is small, but it is large enough to house the retracted soft parts including the entire mantle.
The aperture is elongated.[2] The narrow shell aperture, which is ovate and pointed on the top, can be closed with a corneousoperculum.
The thick shell is oviform to fusiform, with a short (sometimes sunken) conical apex. They have spiral sculpturing. The elongated aperture opens up from narrow at the posterior notch to enlarged at the base. The base of the columella has several characteristic plaits.
Anatomy
The radula has no central tooth, and there are five or six laterals on each side. The teeth are very similar in shape and size across the radula, which is specialised for a diet of polychaete worms.
The eggs are enclosed in a long, gelatinous mass, which is attached to the substrate with a short stalk.
Description: sublittoral on sandy bottoms; cream-colored shell with 5 convex whorls, each whorl with many spiral windings; each whorl is filled with red-brown separate patterns with dark brown to black borders; similar to Maxacteon flammea.
Description: sublittoral on sandy bottoms; convex, cream-colored shell with five whorls, each whorls is covered with transverse pink-colored to light brown patterns, without dark borders; whirls with prominent shoulder.
