Astralium, common name star snails, is a genus of sea snails, marine gastropod mollusks in the family Turbinidae, the turban snails and star snails.

[2] In Astralium a very rapidly enlarging whorl starts from the multispiral nucleus, forming far the greater portion of the operculum, and usually leaving a pit at the starting point.

[3] This marine genus has a wide distribution ranging from the Eastern Indian Ocean to China and Japan, the Philippines, Indonesia, East India, the Maldives and Australia (New South Wales, Northern Territory, Queensland, South Australia, Tasmania, Victoria, Western Australia).

According to the World Register of Marine Species (WoRMS), the following species are included within the genus Astralium :[4] Another number of species are also mentioned in the Indo-Pacific Molluscan Database :[5]