Freshwater bryozoans of Korea-observations on living colonies and three new records Author Chae, Hyun Sook Department of Life Science, Woosuk University, Jincheon 27841, Republic of Korea Author Kil, Hyun Jong National Migratory Birds Center, National Institute of Biological Resources, Incheon 22689, Republic of Korea Author Seo, Ho Jin Yang and Ji Eun text Journal of Species Research 2024 13 1 50 60 journal article 10.12651/JSR.2024.13.1.050 2713-8615 13161977 12. Stephanella hina Oka, 1908 ( Fig. 10 ) ÿũḓ끼ḇNj Material examined. Andeok Reservoir, 29 May 2015 ; Changgi Reservoir, 25 October 2015 ; Sungrim Reservoir, 9 April 2016 ; Daewi Reservoir, 19 May 2016 ; Chopyong Reservoir, 2 August 2016 . Substratum. Rope. Remarks. Stephanella hina is known as a species that is not easy to find a colony ( Hirose and Mawatari, 2011b ). Instead, this species has rounded floatoblast unique in its shape, which is observed only in this species of all the freshwater bryozoans. Only in the Andeok Reservoir, a small colony with many rounded floatoblasts inside was collected ( Fig. 10A, B ). The transparent tubular zooids are embedded in the delicate gelatinous colony ( Fig. 10A ). Distribution. Korea , Japan , and North America.