As Acmaea carpenteri:
Shell oval, rather thin ; apex situated near the anterior third of the length, obtusely rounded; surface very finely, evenly radiately striated all over, rayed with purplish-pink on a light buff ground, the rays 8-12 in number, the anterior ones narrower; more or less flecked with light brown around the apex.
Inside white, either immaculate or having a brown spot in the cavity and a narrow outline around the central area; rays of the exterior generally indistinctly showing through ; margin narrow, buff, with brown spots at the ends of the rays.
Length 20,5, breadth 15,5, alt. 8 mm.
West Indies.