Reference

J Norman Grim, K.S. Reed, L. Fishelson (1995): Description of a New Species of Ciliates, Metanyctotherus paulini n.sp., Symbiont from the Intestines of the Angelfish Apolemichthys xanthotis. Assessment of Species Status for Extant Metanyctotherans – Archiv für Protistenkunde – 146_1995: 341 - 347.