World Register of Marine Species (WoRMS)
WoRMS (2026). Asymmetron inferum Nishikawa, 2004. Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=266627 on 2026-08-02
Nishikawa, T. (2004). A New Deep-water Lancelet (Cephalochordata) from off Cape Nomamisaki, SW Japan, with a Proposal of the Revised System Recovering the Genus Asymmetron. Zoological Science 21: 1131–1136