摘要

A new species, Manuscaris liui sp. nov., of the genus Manuscaris Komai & Tsuchida, 2015 is described from the Manus Basin hydrothermal vents. It is the second species described in this genus. The new species mainly differs from Manuscaris acuminatus Komia & Tsuchida, 2015 by the antennal tooth lacking a small blunt lobe ventromesial to its base, and by the endopod of the first maxilliped being only uni-articulated.