Turrisipho lachesis is a species of sea snail, a marine gastropod mollusk in the family Colidae, the true whelks and the like.
The length of the shell attains 44.1 mm. The shell is pinkish white under a coriaceous epidermis.
Range: 74ðN to 46.08ðN; 78ðW to 0ðW. Distribution: Greenland; Greenland: West Greenland, East Greenland; Canada; Canada: Queen Elizabeth Islands; also off Norway and the Barents Sea