Canalispira kerni is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae.
Canalispira kerni has a strong, smooth, ivory-colored shell. The shell's surface has yellowish flammules on it. Its spire is 1.84mm long. Its protoconch is dome shaped and white. The shell's aperture is 3.26mm long.[1]