Astralium rhodostomum, common name the rosemouth star shell, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.

This thick-shelled species stands near to Lithopoma caelatum (Gmelin, 1791), but is distinguished by the following characters: the whorls are flat, not arched, in the middle.

The carina is sharper, the base flatter, with only three concentric nodose lirae.

The color pattern is reddish brown, more or less verging on violet.

[3] This species occurs in the Indo-West Pacific and off East India, the Philippines and Australia (Northern Territory, Queensland, Western Australia).