Bostrycapulus aculeatus is a species of sea snail in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and hat snails.
This species occurs in Florida and the Bahamas.
The maximum recorded shell length is 30 mm.
The minimum recorded depth for this species is 0 m; maximum recorded depth is 80 m.