Tosapusia sauternesensis is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.

[1][2] The length of the shell attains 43.7 mm.

The holotype of the species (MNHN IM-2000-30178), measured 42.2 mm.

[2] Type Locality : Philippines, Hilutangan Channel between Mactan and Olango Island Group, 160 m.[2]

This Costellariidae-related article is a stub.