M. Tholleson, J. Norenburg. Ribbon worm relationships: a phylogeny of the phylum Nemertea. „Proceedings of the Royal Society of London. Series B, Biological Sciences”. 270, s. 407–415, 2002. DOI: 10.1098/rspb.2002.2254. (ang.).
itis.gov
Anopla, [w:] Integrated Taxonomic Information System(ang.).