Synonyms: Phascolosoma dunwichi; Phascolosoma guttatum; Phascolosoma nahaense; Phascolosoma psaron; Phascolosoma riukiuensis; Phascolosoma rottnesti; Phascolosoma scolops; Phascolosoma scolops adenticulatum; Phascolosoma scolops mossambiciense; Phascolosoma scolops scolops; Phascolosoma scolops var. mossambicense; Phascolosoma socium (heterotypic); Phascolosoma spongicolum; Phymosoma granulatum scolops; Phymosoma nahaense; Phymosoma psaron; Phymosoma scolops; Phymosoma scolops mossambiciense; Phymosoma scolops var. mossambicense; Physcosoma nahaense; Physcosoma psaron; Physcosoma scolops; Physcosoma scolops adenticulatum; Physcosoma scolops mossambiciense; Physcosoma scolops var. adenticulatum; Physcosoma scolops var. mossambicense; Physcosoma scolops var. mossambicensis; Physcosoma scolops var. mozambicense; Physcosoma scolops var. mozambicensis; Physcosoma scolops var. mozambiciensis; Physcosoma socium; Physcosoma spongicola; Sipunculus carneus; Sipunculus guttatus