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Utevsky, Serge; Kovalchuk, Anastasiia; Kovalchuk, Nataliia; Utevsky, Andriy; Chernyshev, Alexei V. (2019). A new species of the genus Johanssonia Selensky, 1914 (Hirudinea: Piscicolidae) collected in the Kuril-Kamchatka Trench at the greatest depth ever recorded for fish leeches. Progress in Oceanography. 176: 102133.
Utevsky, Serge; Kovalchuk, Anastasiia; Kovalchuk, Nataliia; Utevsky, Andriy; Chernyshev, Alexei V. (2019). A new species of the genus Johanssonia Selensky, 1914 (Hirudinea: Piscicolidae) collected in the Kuril-Kamchatka Trench at the greatest depth ever recorded for fish leeches. Progress in Oceanography. 176: 102133.
