Troschelia berniciensis is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks.

(Described as Buccinofusus berniciensis) The whorls are encircled with alternately larger and smaller revolving ridges, decussated by fine growth-lines.

The margin of the outer lip is slightly everted.

[2] The shape of the shell is variable in height and in height-to-breadth ratios, depending on the depth of occurrence and the latitude.

[3] This species occurs in the northeastern Atlantic Ocean in deep water between 400 and 1600 m from the Morocco coast to Norway.