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.
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Timoshkin, O. A.
1986
Rostellar ciliated worms (Turbellaria, Kalyptorhynchia) from the Lake Baikal 2. Members of the genera Opisthocystis and Gyratrix