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