Crassispira bittium Dall, 1924 (original combination) Ceritoturris bittium is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae[1] It was formerly included within the family Pseudomelatomidae.

The length of the shell attains 7 mm.

(Original description) The minute shell has a blunt protoconch.

The second whorl shows a peripheral keel.

[2] This marine species occurs off Hawaii.