Two specimens of Hemitrygon izuensis (395.8-471.5 mm in disc width), belonging to the family Dasyatidae (Myliobatiformes), were collected from the waters off north-eastern Jeju-do Island in June 2016 and Pohang in August 2019. This species was characterized by having no spots on dorsal side of disc, white ventral tail fold and short preorbital snout length (15.6-18.3% of disc width). This species is similar to H. akajei and H. sinensis reported in Korea, but differs in small denticles on mid-line of dorsal surface of disc (absent in H. izuensis vs. present in H. akajei and H. sinensis), the length of ventral tail fold (28.1-31.0% in H. izuensis vs. 48.0-48.6% in H. akajei vs. 45.0% in H. sinensis), color of ventral tail fold (white in H. izuensis vs. black in H. akajei and H. sinensis) and small tubercles on the posterior part of tail (absent in H. izuensis vs. present in H. akajei and H. sinensis). We suggest a Korean name for H. izuensis as “I-ju-gal-saeg-ga-o-li” following Kim et al. (2019).

서 론
재료 및 방법
    채집
    형태분석
    분자분석
결 과
    관찰표본
    기재
    채색
    분포
    분자분석
고 찰
결 론
References

• 장서하(부경대학교 해양생물학과) | Seo-Ha JANG (Department of Marine Biology, Pukyong National University)
• 김진구(부경대학교 자원생물학과) | Jin-Koo KIM (Department of Marine Biology, Pukyong National University) Corresponding author