First record of the genus Pseudaeginella Mayer, 1890 (Crustacea, Amphipoda, Caprellidae) with a new species from Korean waters

So-Yeon Shin; Chang-Mok Lee; Jun-Haeng Heo; Young-Hyo Kim

doi:10.3897/zookeys.1169.105901

First record of the genus Pseudaeginella Mayer, 1890 (Crustacea, Amphipoda, Caprellidae) with a new species from Korean waters

Zookeys. 2023 Jul 13:1169:163-174. doi: 10.3897/zookeys.1169.105901. eCollection 2023.

Authors

So-Yeon Shin¹, Chang-Mok Lee², Jun-Haeng Heo³, Young-Hyo Kim¹

Affiliations

¹ Department of Biological Sciences, Dankook University, 31116, Cheonan, Republic of Korea Dankook University Cheonan Republic of Korea.
² Hanmin High School, 10955, Paju, Republic of Korea Hanmin High School Paju Republic of Korea.
³ Environmental Impact Assessment Team, National Institute of Ecology, 33657, Seocheon, Republic of Korea National Institute of Ecology Seocheon Republic of Korea.

Abstract

A new species of the genus Pseudaeginella Mayer, 1890 belonging to the family Caprellidae Leach, 1814 was collected from the South Sea in Korea. Pseudaeginellacarinaspinosasp. nov. is morphologically similar to related congeners belonging to the genera Paradeutella Mayer, 1890 and Pseudaeginella, in having dorsal projections on pereonites, triarticulate mandibular palp, small or absent molar, and uniarticulate pereopods 3 and 4. However, this new species is distinguished from its congeners by the position and size of dorsal projection. This is the first record of Pseudaeginella from the Northwest Pacific region, including Korea, and a key to species of the genus Pseudaeginella is also provided.

Keywords: Amphipod; Pseudaeginellacarinaspinosa sp. nov.; caprellid; identification key; morphology; new record; skeleton shrimp; taxonomy.

So-Yeon Shin, Chang-Mok Lee, Jun-Haeng Heo, Young-Hyo Kim.