New records of 24 ciliate species (Protozoa, Ciliophora) collected in South Korea Author Kim, Ji Hye Natural Science Research Institute, Gangneung-Wonju National University, Gangneung, Republic of Korea Author Jung, Ji Hye Moon and Jae-Ho text Journal of Species Research 2018 7 4 291 314 journal article 10.12651/JSR.2018.7.4.291 2713-8615 13163147 9. Anteholosticha sigmoidea ( Foissner, 1982 ) Berger , 2003 ( Fig. 9 ) Material examined. Freshwater with debris collected from Gyeongpocheon River , Unjeong-dong , Gangneung-si , Gangwon-do , Korea ( 37°47 ʹ 20 ʺ N , 128°54 ʹ 34 ʺ E ) on November 16, 2017 . Diagnosis. Body size about 85 × 18 μm in vivo , 52-65 × 14-21 μm after protargol impregnation; body shape slightly curved left side; both body ends narrowly rounded; flexible; cytoplasm colorless; one contractile vacuole at left mid-body; colorless cortical granules size about 0.6 μm; 4 macronuclear nodules; about 3 micronuclei; 23- 27 adoral membranelles; 3 frontal cirri; 1 buccal cirrus; 2 frontoterminal cirri; 6-8 transverse cirri; 2 pretransverse cirri; 10-12 midventral pairs; 20-29 right and 19-26 left marginal cirri; 4 dorsal kineties. Distribution. Antarctica , Austria , Brazil , Germany , Namibia , Scotland , Spain , Korea . Remarks. The Korean population of A. sigmoidea is different from the type population ( Austria ) in the body length (85 μm vs. 90-130 μm) and the number of macronuclear nodules (4 vs 6-9) ( Foissner, 1982 ; Berger, 2006 ). Anteholosticha sigmoidea can be distinguished from the most similar species, A. sphagni (Grolière, 1975) Berger, 2003 , based on the cortical granules (present vs. absent) ( Berger, 2006 ). Voucher slide. One slide of protargol-impregnated specimens was deposited at National Institute of Biological Resources, Korea (NIBRPR0000109472).