On Marine Relict Mysidacea

Abstract

Japanese fresh-water mysids are treated in this paper and their ecology is compared with that of a glacial marine relict Mysis relicta. Japanese relict Mysidacea shall be identified with either of Neomysis awutschensis and N. nigra. Those from Etorohu-Sima of the Kurile Islands, Hokkaidô and the Kwantô Plain belong to the former, and those from the Japan Sea coast of southern Honsû are refered to the latter. © 1933, The Japanese Society of Fisheries Science. All rights reserved.