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Panina, E. G.; Stepanov, V. G.; Smirnov, A. V.; Martynov, A. V. (2020). Two new species of holothurians of the genus Echinopsolus Gutt, 1990 (Echinodermata: Dendrochirotida: Cucumariidae) from the North-Western Pacific. Zootaxa. 4789(1): 233-246.