Cerithiella martensii is a species of very small sea snail, a marine gastropod mollusk in the family Newtoniellidae.

This species is known from the Gulf of Mexico.

[1] The maximum recorded shell length is 11.3 mm.

[2] Minimum recorded depth is 419 m.[2] Maximum recorded depth is 2160 m.[2]

This Caenogastropoda-related article is a stub.