Reference

Xiaofeng Lin, J. Gong, Weibo Song (2004): Morphological studies on a new species of Orthodonella, with redescription of O. gutta (Cohn, 1866) Kahl, 1931 (Protozoa: Ciliophora: Synhymeniida) from coastal water off Qingdao, China – Journal of Natural History. Ersetzt: Annals and Magazine of Natural History, including Zoology, Botany and Geology. – 38: 2001 - 2011.