Turritriton tenuiliratus, common name: the thin-lined triton, is a species of predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.

[1] The shell size varies between 30 mm and 60 mm This species has a wide distribution.

It can be found in European waters, the Canary Islands, in the Gulf of Mexico, the Caribbean Sea, the Philippines and Japan.