original description
Timoshkin O.A. 1986. [Rostellar ciliated worms (Turbellaria, Kalyptorhynchia) from the Lake Baikal 2. Members of the genera Opisthocystis and Gyratrix]]. Zoologicheskii Zhurnal 65 (7): 973-980. [details] Available for editors
additional source
Timoshkin O.A., Naumova T.B., Novikova O.A. (2001). Ciliated worms (Plathelminthes: Turbellaria). <em>In: Index of animal species inhabiting Lake Baikal and its catchment area: In 2 vols . Novosibirsk, Nauka, 2010–2011, Vol. 1: Lake Baikal.</em> II (4): 196–227. [details] Available for editors
From editor or global species database