New record of two cymothoid isopods (Crustacea: Malacostraca: Isopoda) from South Korea

E) and Gageo­do Island (34°02 ′ N, 125° 07 ′ E) in South Korea, respectively. They were preserved directly in 95% ethyl alcohol after collection. All exam­ ined specimens were deposited in the National Institute of Biological Resources (NIBR) and Inha University, South Korea. The specimens were transferred to glycerin for dis­ section and then examined and dissected under a stereo­ microscope (Model SZX­7; Olympus, Tokyo, Japan). Figures of dissected appendages were obtained by light microscopy with attached drawing tube (Model DM 2500; Leica, X50­630, Wetzlar, Germany). Figures of the whole body were obtained using the drawing tube at­ to a stereomicroscope (Olympus SZX­12, Tokyo, Two marine isopods, Elaphognathia sugashimaensis (Nunomura, 1981) and Metacirolana shijikiensis Nunomura, 2008, have been reported for the first time in South Korea. Specimens of E. sugashimaensis and M. shijikiensis were collected using light traps from Yeongdeok­gun and Gageo­do Island in South Korea, respectively. The genera Elaphognathia Monod, 1926 and Metacirolana Kussakin, 1979 are new to South Korea. In this paper, we provide descriptions of diagnostic characteristics and illustrations of their morphologies. Additionally, the partial sequences of mitochondrial cytochrome c oxidase subunit 1 ( CO1 ) of two species are provided as molecular characteristics.