Shell oval, broader behind, thin, depressed, anterior slope nearly straight, posterior and side slopes convex, the blunt apex placed at about ¾ of the total length, surface radiately many-striated, the striae are slightly irregular, at intervals stronger, more crowded at some parts of the shell, the interstices have nearly microscopical striae; the radiating striae are crossed by minute, scaly, concentric striae, much weaker and often obsolete in the interstices. Colour very variable, yellowish-white, often with brown rays and adorned with brown lines, which form a more or less complete network, many specimens with conspicuous white spots, especially at some distance from the apex. The dark rays may be wanting or broken up in dark spots. Interior of the shell bluish-white, porcellaneous, the margin more or less dark, according to the external colour-pattern; central area yellowish-brown. Long. 20 mm, lat. 16 mm, alt. 5 mm

Allied to the A. striata, but differing by the large number of striae, which are squamous and by the pattern of coloration. Perhaps it has hitherto been confounded with A. striata, with which it lives at the same localities.

Indonesia. Nusa Tenggara Barat.