Abstract

A new species of the genus Monoliropus belonging to the family Caprellidae was collected from the Yellow Sea, Korea. The new species differs from Monoliropus agilis Mayer, 1903, Monoliropus kazemii Momtazi & Sari, 2013, and Triprotella amica Arimoto, 1970 as follows: 1) gnathopod 1 subrectangular; 2) pereonites 2–3 with acute triangular processes anterolaterally; 3) mandibular palp, apical article with four simple setae subdistally. The new species is fully illustrated and extensively compared with related species. This is the first record of the genus Monoliropus from Korean waters. A key to Monoliropus species is also given.

Highlights

  • The genus Monoliropus Mayer, 1903 is one of 57 genera belonging to the family Caprellidae

  • A full description of the new species in the genus Monoliropus from Korean waters is provided, with a brief description of the female, focusing on the sexually dimorphic characters. This is the first record of the genus Monoliropus from Korea and a key to the world Monoliropus species is provided

  • Type specimens were deposited at the National Institute of Biological Resources (NIBR), Incheon, Korea and the Department of Life Sciences, Dankook University (DKU), Cheonan, Korea

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Summary

Introduction

The genus Monoliropus Mayer, 1903 is one of 57 genera belonging to the family Caprellidae. Antenna 2, flagellum biarticulate, swimming setae absent; mandibular palp bi- or triarticulate; pereonites 3–4 with gills; pereopods 3–4 present, uniarticulate; in male, abdomen with a pair of uni- or biarticulate appendages and a pair of lobes.

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