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e-ased.org, vol. 35, no. 2, pp.76-83, 2019

DOI: https://doi.org/10.5635/ASED.2019.35.2.009

A New Record of the Genus Orchomenella (Crustacea, Amphipoda, Tryphosidae) from Korean Waters

Jun-Haeng Heo, Young-Hyo Kim*

Affiliation: Department of Life Sciences, Dankook University, Cheonan 31116, Korea

Abstract: The species Orchomenella littoralis Nagata, 1965 belong to the family Tryphosidae Lowry & Stoddart, 1997. Previously this species was only known from a single record identified in Japanese waters, and newly recorded from Baengnyeongdo-Island, on the west coast of Korea. The species is similar to Orchomene breviceps Hirayama, 1986 in carrying posteroventral teeth on epimeron 3. However, O. littoralis is characterized by the presence of 4-7 posteroventral teeth of epimeron 3, a round posterodistal lobe of coxa 4, and elongated antenna 2 in male. The species is described and fully illustrated in the present study. Also, a key to Korean Orchomenella species is provided.

Keyword: Lysianassoidea, Tryphosidae, Orchomenella, Korea