Reference

Weibo Song, M. Wang, Alan Warren (2000): Redescriptions of three marine ciliates, *Strombidium elegans* #Florentin#, 1901, *Strombidium sulcatum* #Claparède & Lachmann#, 1859 and *Heterostrombidium paracalkinsi* #Lei, Yu & Song#, 1999 (Ciliophora, Oligotrichida) – Europ. J. Protistol. – 36: 327 - 342.