Yamasaki, H., Kajihara, H. and Mawatari, S. F. (2012) “First report of kinorhynchs from Hokkaido, Japan, including a new species of Pycnophyes (Pycnophyidae: Homalorhagida)”, Zootaxa. Auckland, New Zealand, 3425(1), pp. 23–41. doi: 10.11646/zootaxa.3425.1.2.