Reference

H. Long, Weibo Song, Yong Wang, J. Li (2007): Morphological redescription of two endocommensal ciliates, Entorhipidium fukuii Uyemura, 1934 and Madsenia indomita (Madsen, 1931) Kahl, 1934 from digestive tracts of sea urchins of the Yellow Sea, China (Ciliophora; Scuticociliatida) – Europ. J. Prot. – 43: 101 - 114.