Shell large, up to 79 mm. (over 3 inches) in length, solid, broadly ovate, with a deeply scalloped margin, tall conical, with the apex varying between subcentral and the anterior third. There are about 26 strong, rounded, radial ribs, crossed by dense, sharp-edged growth lines. Colour variable with age; young shells are grey or greenish grey within, the spatula clearly defined, olive to bluish slate; becoming yellowish, and finally pale orange at the margin, where bold radiate dark red-brown radials show through the shell substance; exterior dull grey to pinkish buff, often with radiate yellowish brown streaks in the rib interstices. Fully grown examples tend to have the spatula more or less masked by a thick whitish callus, and the margin is bright reddish orange, regularly banded by the reddish brown radials. In this latter form, rubraurantiaca, the exterior is pinkish white. Radula: Formula 3 + 1 + (1+0+1) +1+3. The two centrals are long, slender, curved and unicuspid; the pair of laterals are bicuspid, the main member similar to the centrals, but with a small additional cusp at the base; the three marginals are narrow and slender, the inner one curved over at the top into a cutting edge, the other two simple (Macpherson, 1955, p. 236). Length: 51-79 mm; Width 43-67 mm; Height: 19,5-38 mm.

Shell large, grey, orange, but variable in colour with a distinct orange red margin; conoidal, apex subcentral inclining towards the anterior margin. Surface generally much eroded. Sculptured with about twenty-five fairly bold radiating; ribs with concentric growth-lines plainly visible. Interior smooth, muscular impression blue, margin orange and blotched with reddish brown. Aperture ovate. Size: 2 inches.

This is a large solid limpet, sculptured with bold, rounded, radial ribs. Blainvilles solida applies to the smaller size range of the species, and his rubraurantiaca to the fully adult in which the internal colour usually deepens to orange-red at the margin. A conspicuous feature of this species is the clearly defined dark-coloured spatula, which varies from olive-brown to greenish or bluish slate.

Its nearest ally in Victoria is tramoserica (Sowerby) from which it may be separated by its broader ribs and very definite orange red margin. The species is recorded from South Australia and Tasmania where it grows to a large size. For many years known as Patella limbata Philippi, 1849, or Patella rubroaurantiaca Blainville, 1825.

Tasmania, Bass Strait Islands, and Victoria to eastern South Australia, in the algal zone of the lower littoral.