Unrecorded species of Korean protozoans discovered through the project of ‘ Discovery of Korean Indigenous Species’ II Author Chae, Kyu-Seok Department of Biological Sciences and Bioengineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea Author Jung, Jongwoo Department of Science Education, Ewha Womans University, Seoul 03760, Republic of Korea jongwoo@ewha.ac.kr Author Lee, Won Je Department of Environment and Energy Engineering, Kyungnam University, Changwon 51767, Republic of Korea jongwoo@ewha.ac.kr Author Min, Gi-Sik Department of Biological Sciences and Bioengineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea jongwoo@ewha.ac.kr text Journal of Species Research 2022 11 4 335 342 journal article 10.12651/JSR.2022.11.4.335 2713-8615 13140020 6. Difflugia elegans angustata ( Penard, 1890 ) Deflandre, 1926 ẅȇẍẒOiƞùǟḇNj (ṵÿ) ( Fig. 2A ) Difflugia elegans Penard, 1890 . Material examined. Yangju-si ( 37°43′28.12″N , 126°58′ 35.44″E ), Gyeonggi-do , South Korea ; 15 May 2018 . Deposition. NIBRPR0000110248. World distribution. Cosmopolitan. Diagnosis. Shell relatively large, cylindrical, ending in a thick spike on fundus; surface uneven; mouth rounded. Shell length 90 μm, width 40 μm; mouth diameter 25 μm.