The Dweller itself has no eyes, but it does not appear to need them. Smith describes it thus: "The humped, enormous carapace, vaguely recalling the armor of the glyptodon, shone with a luster as of wet white gold. The eyeless head, alert but sonmolent, was thrust forward on a neck that arched obscenely. A dozen or more of short legs, with goblet-shapen feet, protruded slantwise beneath the overhanging shell... two proboscides, yard-long, with cupped ends, arose from the corners of the cruelly slitted mouth and waved slowly in air toward the earthmen.
The thing, it seemed, was old as that dying planet, an unknown form of primal life that had dwelt always in the caverned waters."