Xymenopsis subnodosusXymenopsis subnodosus is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.DescriptionThe white shell is fusiform. The whorls are convex. There are 16 ribs and 12 lirae. The aperture is ovately oblong. The siphonal canal measures about the same length as the spire. The inner lip is thickened and toothed.DistributionThis marine species occurs in the Strait of Magellan.