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 24. Zoothamnium plumula Kahl, 1933 ( Fig. 24 ) Material examined. Brackish water (salinity 10‰) collected from Gyeongpocheon River , Unjeong-dong , Gangneung-si , Gangwon-do , Korea ( 37°47 ʹ 20 ʺ N , 128°54 ʹ 34 ʺ E ) on July 13, 2017 . Diagnosis. Colony height about 2100 μm; colony fan-like shape; alternatively branched; contractile stalk; zooid elongated bell-shaped, measuring 55-72 × 25-27 μm in vivo ; single-layered peristomial lip width 38-40 μm; horizontal C-shaped macronucleus; one contractile vacuole dorsally located; transverse silverlines about 60 striations between peristomial lip and trochal band, about 25 striations between trochal band and scopula; two epistomial membranes; P1 and P2 consisted 3 kineties; P3 slightly separated inner row and outer two rows. Distribution. China , Germany , Korea . Remarks. The Korean population of Z. plumula is slightly different from the Chinese population in the colony shape (fan-like vs. feather-like) ( Song et al ., 2002 ; Ji et al ., 2009 ). The Korean population is possibly a well-developed form because the colony shape is sometimes changeable ( Ji et al ., 2015 ). Voucher slides. Two slides of protargol-impregnated specimens were deposited at National Institute of Biological Resources, Korea (NIBRPR0000109421, NIBRPR0000109422).