Lithopoma phoebium, common name the longspine star shell, is a species of medium-sized sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.

[1] This is a tropical Western Atlantic species.

Distribution of Lithopoma phoebium include: Aruba, Belize, Bonaire, Caribbean Sea, Cayman Islands, Colombia, Costa Rica, Cuba, Curaçao, Gulf of Mexico, Jamaica, Lesser Antilles, Mexico, Panama, Puerto Rico, San Andres, The United States, and Venezuela.

[2] The maximum recorded shell length is 76 mm (almost 3 inches).

[3] The minimum recorded depth for this species is 0 m; maximum recorded depth is 91 m.[3]