| Astralium pileolum, Astralium danieli|
Astralium tentorium is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.
Astralium tentorium Wikipedia
The size of the shell varies between 30 mm and 50 mm.
This marine species is endemic to Australia and occurs in the subtidal zone off Western Australia.