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

[1][2] The holotype of the species (MNHN IM-2013-19695), measured 35.1 mm.

[2] Type Locality : Papua New Guinea, Bismarck Sea, off Bagabag Island, PAPUA NIUGINI, station CP3979.

[2] This species occurs in the following locations:[1][2]

This Costellariidae-related article is a stub.