Copulabyssia riosi is a species of sea snail, a marine gastropod mollusk in the family Pseudococculinidae.
[2] This species occurs in the Atlantic Ocean off Brazil.
The maximum recorded shell length is 3.5 mm.
[3] Minimum recorded depth is 960 m.[3] Maximum recorded depth is 1320 m.[3]
This Pseudococculinidae-related article is a stub.