A new genus of Orthopsyllidae Huys, 1990 (Copepoda, Harpacticoida) from the Pacific Ocean.

ABSTRACT: This study reports the discovery of four new benthic harpacticoids from Korean waters in the Pacific Ocean. The harpacticoids were collected using SCUBA or a grab sampler and sorted using a stereomicroscope for both molecular and morphological analysis. The study employed standard DNA sequencing methods (COI and 18S rRNA) and detailed morphological characterization through microscopy and scanning electron microscopy. As a result, three new species belonging to the family Orthopsyllidae and classified as a new genus were discovered. Although the new genus lacks brush setae on leg 1, a diagnostic feature of Orthopsyllidae, it shares similarities with other orthopsyllids in characters such as the large thorn-like process on the antennule, leg 5, and sexual dimorphism. This finding necessitate

SUBMITTER: Back J 

PROVIDER: S-EPMC12811756 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature