Shell markedly narrowed anteriorly; anterior end raised; anterior slope concave; sculpture of strong, scabrous ribs; rib interspaces broad, foramen nearly circular, broader posteriorly. Posterior portion of foot covered by shell, shell edge only slightly enveloped by mantle folds; exterior color gray-brown, interior white. Propodium with about 15 radiating tentacles, subequal in size, anteriormost the largest. Maximum shell length 35 mm

30mm. Thick, heavy, flattened, saddle-shaped cone, narrower and conspicuously raised anteriorly: orifice central, almost circular, sharp-edged, raised posteriorly, Strong, widely-spaced, radial ribs which are smooth or coarsely scaled; margin lightly corrugated or worn smooth. White, yellowish or pink, often brown-rayed: inside porcellaneous, white. Habitat: intertidal among stones and rocks. Distribution: Golf of Oman, Masirah Island. South of Oman.

The anterior end of M. salebrosa is more tapering and the primary ribs are more strongly defined and broadly separated than those of M. dubia and M. chemnitzii.

Indian Ocean, northernmost Arabian Sea, Pakistan to Somalia.
This enigmatic species is poorly known, partly because of its localized distribution. The first illustration with a properly documented locality subsequent to that of Reeve's original figure is that of Bosch and Bosch (1982), who indicated it as common, "distributed generally on rocks or in crevices."