Yamasaki, H., Kajihara, H., & Mawatari, S. F. (2012). First report of kinorhynchs from Hokkaido, Japan, including a new species of Pycnophyes (Pycnophyidae: Homalorhagida). Zootaxa, 3425(1), 23–41. https://doi.org/10.11646/zootaxa.3425.1.2