Shell with a conical spire of moderately convex whorls. Body whorl rounded, with no umbilicus. Sculpture of broadly rounded axial folds, which are not continued below the periphery of the body whorl, and of spiral cords (four on last spire whorl), separated by interspaces as broad as the cords. Aperture ovate, with cutting outer lip, thickened by a varix at a short distance from the edge.
buff with dark brown lines (sometimes discontinuous) running over the cords. Aperture with a brown stain on the columella and another on the abapical part of the outer lip.
common size :
2 - 2.5 mm.
This species resembles the native Alvania montagui (Payraudeau, 1826), and other native species belonging to the same species group, which is in need of revision. The most likely to be confused are forms assigned to Alvania lineata Risso, 1826, which have also continuous brown lines on the spiral cords but differ in being more solid, and in having more raised axial folds which reach closer to the umbilicus on the base of the shell.
BIOLOGY / ECOLOGY
unknown, probably among infralittoral brown algae like the related species.