Reference

Wilhelm Foissner, Jean Dragesco (1996): Updating the Trachelocercids (Ciliophora, Karyorelictea). III. Redefinition of the Genera Trachelocerca Ehrenberg and Tracheloraphis Dragesco, and Evolution in Trachelocercid Ciliates – Archiv für Protistenkunde – 147_1996: 43 - 91.