This species is indistinguishable from "Serpulorbis zelandicus" in shell characteristics, except for coloration, tending to be darker brown to purplish-brown, but quite distinctive in coloration of the animal, and in the radula, especially the narrow shape of the central tooth.
This species is indistinguishable from "Serpulorbis zelandicus" in shell characteristics, tending to be darker brown to purplish-brown, but quite distinctive in coloration of the animal, and in the radula. This is except for coloration. The radula is especially the narrow shape of the central tooth.