Reference

Weibo Song, Khaled A. S. AL-Rasheid, X. Hu (2002): Notes on the poorly-known marine peritrichous ciliate, Zoothamnion plumula Kahl, 1933 (Protozoa: Ciliophora), an ectocommensal organism from cultured scallops in Qingdao, China – Acta Protozool. – 41: 163 - 168.