Reference

H. Long, W. Sond, Khaled A. S. AL-Rasheid, Yong Wang, Z. Yi, S.S. Al-Quraishy, Xiaofeng Lin, Saleh A. Al-Farraj (2008): Taxonomic studies on three marine species of Frontonia from northern China: F. didieri n. sp., F. multinucleata n. sp. and F. tchibisovae Burkovsky, 1970 (Ciliophora: Peniculida) – Zootaxa – 1687: 35 - 50.