Taxonomic study on bryozoans - new additions to the Korean fauna and new species of Petraliella from Seogwipo waters of Jeju Island Author Chae, Hyun Sook Author Kil, Hyun Jong Author Seo, Ji Eun text Journal of Species Research 2016 2016-10-31 5 3 551 565 http://dx.doi.org/10.12651/jsr.2016.5.3.551 journal article 10.12651/JSR.2016.5.3.551 2713-8615 13144895 36. Parasmittina contraria Seo, 1993 üġḥ입ÑnjḇNj Material examined. Seopseom Island , 27 Aug. 2008 (J. R . Lee ) by SCUBA diving from 15­18 m in depth; Marado Island , 14 Nov. 2010 ( J.E. Seo ; B.S. Min ; H.J. Yang ) by SCUBA diving from 20­30 m in depth; Seongsanpo, 28 Nov. 2010 ( B.S. Min ; H.J. Yang ) by SCUBA diving from 13­15 m in depth . Substratum. Sponges and bivalve shells. Remarks. This species is endemic to Korea . Distribution. Korea (South Sea, Jeju Island and Yellow Sea).