Abstract
A new species of rare deep-sea caridean genus Bathypalaemonella (Bathypalaemonellidae), B. hayashii , is described and illustrated on the basis of two female specimens obtained from southeast of Amami-oshima Island at depth of 789-815 m and Tosa Bay at depths of 440-510 m, Japan. The new species appears closest to the Atlantic species B. serratipalma Pequegnat, from which it is readily distinguishable in a number of characters. It is the first representative of Bathypalaemonella from Japanese waters.
