Pseudorchomene boreoplebs, a new lysianassid amphipod from Korean waters (Crustacea, Amphipoda, Lysianassoidea)

By

Jung, Tae Won
Coleman, Charles Oliver
Yoon, Seong Myeong

Type

Article

Date of Publication

2017

Original Publication

Zoosystematics and evolution

Volume

93

Series / Issue

Issue: 2

Pages

343--352

Subjects

Amphipod , Korea , lysianassid , new species , Pseudorchomene boreoplebs , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia Pensoft

Identifiers

DOI: https://doi.org/10.3897/zse.93.20482

 

Abstract

Until now, the genus Pseudorchomene Schellenberg, 1926 has been recorded exclusively in Antarctic or sub-Antarctic regions. Pseudorchomene boreoplebs sp. n., described from Korean waters, is the first record from the Northern Hemisphere as well as from temperate regions. This new species is very similar to Pseudorchomene plebs (Hurley, 1965), but can be readily distinguished by its wider basis of gnathopod 1, elongate carpus and angulate anterodistal corner of the propodus on gnathopod 2, having slender setae only on the posterior margin of the carpus on pereopod 5, and lacking posterior lobations of the carpus on pereopods 5–7.