Carinodrillia dichroa, common name the two-toned turrid, is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.

[1] The shell has a spiral structure, with a commonly off-white colouration above the periphery on the upper half of the whorl, and dark brown below it.

It has a narrow brown band above the suture with a moderately developed spiral sculpture in comparison with other species of the genus Carinodrillia.

This marine species occurs from the Sea of Cortez, West Mexico to Ecuador, at a depth of 10 to 40 m. It is found on gravel bottoms near rock.

This Pseudomelatomidae-related article is a stub.