Comprehensive DescriptionRead full entry
This species was described from two specimens. Cutler and Cutler (1985) suggested that it might be an aberrant subset of the larger population of the sympatric species, S. phalloides phalloides. They point out that other than the peculiar arrangement of the basal union of the retractor muscles and the partially attached nephridia there are no clear distinctions. Despite their doubts, Cutler and Cutler (1985) retained this species as valid. Cutler (1994) declared that the interconnected retractor origins occur in other populations of Sipunculus species.