Lamellitrochus pourtalesi is a deep-sea species of sea snail, a marine gastropod mollusk in the family Solariellidae.
The maximum recorded shell length is 10.3 mm.
This species occurs in the Gulf of Mexico, the Caribbean Sea and off Puerto Rico at depths between 293 m and 2276 m.
Minimum recorded depth is 293 m. Maximum recorded depth is 2276 m.
