Unrecorded species of Korean invertebrates discovered through the project of ‘ Discovery of Korean Indigenous Species’ II Author Ji, Su-Jung Department of Biological Sciences and Bioengineering, Inha University, Incheon 22212, Republic of Korea Author Jung, Chuleui Department of Plant Medicals, Andong National University, Andong 36729, Republic of Korea Author Bang, Hyun Woo Division of Biomedical Engineering & Biotechnology, College of Science & Technology, Mokwon University, Author Song, Min Ok Department of Biology, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea Author Jung, Jongwoo Department of Science Education, Ewha Womans University, Seoul 03760, Republic of Korea Author Yoon, Seong Myeong Department of Biology, Chosun University, Gwangju 61452, Republic of Korea Author Lee, Seunghwan Insect Biosystematics Laboratory, Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea Author Keum, Seoyoung Department of Plant Medicals, Andong National University, Andong 36729, Republic of Korea & Silkworm and Insect Management Center, Agricultural Resource Management Institute, Gyeongbuk Provincial Government, Sangju 37110, Republic of Korea Author Yang, Hee-Min Department of Biological Sciences and Bioengineering, Inha University, Incheon 22212, Republic of Korea Author Lee, Dongmin Department of Parasitology, Parasite Research Center and International Parasite Resource Bank, School of Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea Author Lee, Geon Hyeok Department of Biological Sciences and Bioengineering, Inha University, Incheon 22212, Republic of Korea & Department of Biology, Chosun University, Gwangju 61452, Republic of Korea Author Oh, Jaeseok Insect Biosystematics Laboratory, Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea Author Kim, Kichoon Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea Author Park, Hansol Department of Parasitology, Parasite Research Center and International Parasite Resource Bank, School of Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea Author Moon, Heejin Division of Biomedical Engineering & Biotechnology, College of Science & Technology, Mokwon University, Author Joharchi, Omid Department of Plant Medicals, Andong National University, Andong 36729, Republic of Korea Author Kang, Yeseul Department of Parasitology, Parasite Research Center and International Parasite Resource Bank, School of Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea Author Eom, Keeseon S. Department of Parasitology, Parasite Research Center and International Parasite Resource Bank, School of Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea Author Lee, Kyung Jin Animal Resources Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea Author Eun, Ye Animal Resources Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea Author Kim, Taeho Animal Resources Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea Author Karanovic, Ivana Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea ivana@hanyang.ac.kr Author Lee, Jeounghee The Division of EcoCreative, Ewha Womans University, Seoul 03760, Republic of Korea & Marine Biological Resource Institute, Sahmyook University, Seoul 01795, Republic of Korea ivana@hanyang.ac.kr Author Choe, Seongjun Department of Parasitology, Parasite Research Center and International Parasite Resource Bank, School of Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea ivana@hanyang.ac.kr Author Min, Gi-Sik Department of Biological Sciences and Bioengineering, Inha University, Incheon 22212, Republic of Korea ivana@hanyang.ac.kr text Journal of Species Research 2023 2023-02-28 12 1 68 89 journal article 10.12651/JSR.2023.12.1.068 2713-8615 12753339 27. Paramphiascella vararensis (Scott T., 1903) ( Fig. 27 ) Ṉ나Pẙýdz÷ƚḇNj ( ṵAE ) Dactylopus vararensis Scott T., 1903 . Amphiascus vararensis (Scott T., 1903) . Paramphiascoides vararensis (Scott T., 1903) . Material examined. Wando ( 34°14′34.0″N , 126°50′33.0″ E ), Korea ; collected by DG Jeon on 17 May 2017 . Deposition. NIBRIV0000879019. World distribution. Scotland , UK and Korea . Diagnosis. Body semicylindrical, fusiform. Total body length 697 μm, largest width 108 μm. Rostrum not bifid, relatively large, defined at its base, triangular, and with a pair of sensilla. Cephalothorax tapering anteriorly. Caudal rami broader than long. Antennule eight segmented. Antenna with small coxa, elongated allobasis, and three segmented exopod. Swimming legs I - IV, biramous, endopods and exopod three segmented. First endopodite segment of P1 (first thoracopod) reaching to end of exopod at most, third endopodal segment of P1 about 1.5 times as long as second endopod segment. P5 (fifth thoracopod), endopodal lobe with five setae; exopod oval, slightly longer than wide, separated from baseoendopod, and armed with five setae. Remarks. According to Marcotte (1974) and Wells (2007) , the Korean specimen is morphologically most closely related to Paramphiascella vararensis (Scott T., 1903) based on the following morphological characteristics: 1) rostrum not bifid, 2) caudal rami broader than long, with two unmodified terminal setae, 3) antenna with three segmented exopod, middle segment of exopod without seta, distal segment of exopod with three setae, and 4) first endopodal segment of P1 extends to just beyond third exopodal segment at most, third endopodal segment of P1 about 1.5 times as long as second segment of endopod. The Korean population of P. vararensis is slightly different from the type species in the shape of P1 endopod first segment.