Reference

Weibo Song, Alan Warren, Dave Roberts, Norbert Wilbert, L. Li, Ping Sun, X. Hu, H. Ma (2006): Comparison and redefinition of four marine, coloured Pseudokeronopsis spp. (Ciliophora: Hypotrichida), with emphasis on their living morphology – Acta Protozool. – 45: 271 - 287.