First record of Morimotobathynella Serban, 2000 (Bathynellacea, Bathynellidae) from subterranean waters of South Korea, with the description of a new species

By

Ji, Su-Jung
Camacho, Ana Isabel
Min, Gi-Sik

Type

Article

Date of Publication

2025

Original Publication

ZooKeys

Volume

1224

Pages

109--127

Subjects

Interstitial hyporheic zone , Korean Peninsula , molecular analysis , Morimotobathynella koreana sp. nov , subterranean crustacea , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1224.141117

 

Abstract

This study describes Morimotobathynella koreanasp. nov., the first new species of Bathynellidae family reported in East Asia since 2000, and it presents the first molecular analysis using CO1 and 18S gene sequences. Morphological analysis reveals that the new species and previously known Morimotobathynella species uniquely share key characteristics in the male and female thoracopods VIII. However, the presence or absence of the median seta on the antenna exopod, along with the length differences between the four spines in the furca, distinguish the new species from M. miurai, 2000. A molecular phylogenetic analysis indicates that the new species has a relatively close relationship to species from the genus Altainella in Mongolia and Russia.