original descriptionBoettger, C. R. (1956). Beitrage zur systematik der Urmollusken (Amphineura). <em>Zoologischer Anzeiger Suppl.</em> 19: 223-256.[details]
basis of recordAn outline for the classification of Phylum Mollusca in taxonomic databases
[report elaborated by WoRMS editors for internal use, june 2010][details]