Achatz, Johannes G., and Wolfgang Sterrer. 2015. “New Austrognathiidae (Gnathostomulida: Conophoralia) from Hong Kong and Japan: Microscopic Anatomy, Ultrastructure and Evolutionary Implications”. Zootaxa 3955 (2). Auckland, New Zealand:267–282. https://doi.org/10.11646/zootaxa.3955.2.5.