The shell measures 49.3 mm in length, 25.0 mm in height, and 16.2 mm in width. It is elongated, highly compressed, with umbones that are not inflated and nearly flattened. It bears resemblance to Radiatula occata(The shell is short oval, highly compressed, with umbones that are not inflated and nearly flattened. The anterior portion is very brief and rounded, with the dorsal margin sharply bending in the ventral direction.) but is longer. The periostracum of the shell exhibits a brown to greenish coloration.