A new record of Lynceus brachyurus Müller, 1776 (Laevicaudata: Lynceidae) from the Shiretoko Peninsula, Northeast Japan

Abstract

A new Japanese record of the Holarctic clam shrimp Lynceus brachyurus is presented with key morphological characteristics and habitat information. The rostrum, clasper, telson, and lamina abdominalis of this insular record are similar to those of the common form of L. brachyurus in continental populations, and our specimens fall within the previously reported species variability.