@article {749331,
	title = {Are there true cosmopolitan sipunculan worms? A genetic variation study within <em>Phascolosoma perlucens</em> (Sipuncula, Phascolosomatidae)},
	journal = {Marine Biology},
	volume = {157},
	year = {2010},
	pages = {1417-1431},
	author = {GY. Kawauchi and Giribet. G}
}
