Cerithideopsis costata is a species of small sea snail, a marine gastropod mollusk in the family Potamididae.

[1] This marine species occurs in the Caribbean Sea and the Gulf of Mexico.

The maximum recorded shell length is 21 mm.

[2] The species has been found in water at recorded depths from 0 to 402 m.<[2] This Potamididae-related article is a stub.

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