The first record of leucism in the (Boie, 1826) (Squamata, Colubridae) in South Korea.

Leucism, in which pigmentation is lost over part or the entire body of an animal, has a range of possible genetic causes. Here, we report leucism in an individual tiger keelback () found on Jeung Island, Shinan-gun, Jeollanam-do, South Korea, during a survey of the distribution of reptiles in the area. The individual was observed sunbathing in the bushes next to a pond. This individual exhibited ecdysis, thus it considered that have normal feeding activity. Our report represents the first observation of leucism in . , and thus, further analysis is needed of this phenotype to more clearly understand its impact on the species and its natural history.