Haplocochlias turbinus is a species of sea snail, a marine gastropod mollusc in the family Skeneidae.

The small, thin shell has a subconic shape with four rounded whorls and a minute glassy nucleus.

The radiating sculpture consists of fine oblique incremental lines, which on the early whorls rise into very fine threads, visible crossing the interspaces of the spiral sculpture.

It is oblique, nearly circular, with sharp, simple, slightly expanded edges.

[2] This species occurs in the Caribbean Sea and the Gulf of Mexico; in the Atlantic Ocean off North Carolina at depths between 70 m and 146 m.