freshwater fish species found nowhere else are the Somjiny Bitterling (NFRDI),
the Korean Stumpy Bullhead (NFRDI),
the King Spine Loach (Loaches
Online), the Black
the Korean Spotted
a loach Niwaella
Online), the South Torrent Catfish (NFRDI),
the Round-tailed Loach (Loaches
Online), the Spotted Barbel
(Daemin Kim). Marine fish species
known only from South Korea include the Korean
Skate Raja koreana (NFRDI),
the Korean Rockfish Sebastes
a prickleback Zoarchias
The recently discovered Korean Crevice Salamander Karsenia koreana (AmphibiaWeb) is the only lungless salamander known from Asia. Other endemic amphibians include the Korean Clawed Salamander Onychodactylus koreanus (AmphibiaWeb), the Cheju Salamander Hynobius quelpartensis (eol), and the Kori Salamander Hynobius yangi (iNaturalist).
endemic Jeju Striped Field Mouse Apodemus
is sometimes considered a a full species distinct from the more
widespread Striped Field Mouse Apodemus
Insects restricted to South Korea include a katydid Sphagniana monticola (Orthopteroids of Korea), a moth Pyrausta nigrimaculata (Species Korea), the longhorned beetles Demonax seoulensis (Beetles of Korea) and Ropica coreana (Beetles of Korea), and three scarab beetles: Koreoxyomus koreanus (Insect Collection), Psammodius coreanus (Insect Collection), and Aegialia koreana (Insect Collection). Endemic spiders include a funnel weaving spider Agelena koreana (NAVER), a purseweb spider Atypus coreanus (NARIS), a daddy long-legs spider Pholcus kwanaksanensis (NARIS), and a wolf spider Lycosa coreana (NARIS). A cave-dwelling springtail Gulgastrura reticulosa (Taylor & Francis) (Species Korea) is the sole member of the family Gulgastruridae.
Vascular plants unique to South Korea include the Korean Fir Abies koreana (Wikipedia), the Korean Bellflower Campanula takesimana (Botanic Gardens Trust), Clematis chiisanensis (gwbaekdu.com), Cardamine glechomifolia (NAVER), a spurge Euphorbia fauriei (Species Korea), Forsythia saxatilis (Korean Endemic Plants Database), a bamboo Sasa quelpaertensis (asianflora), Cotoneaster wilsonii (Species Korea), Lycoris chejuensis (NAVER), Hosta yingeri (Hosta Photo Library), a violet Viola seoulensis (wildflower.co.kr), Scrophularia takesimensis (Species Korea), Dystaenia takeshimana (doopedia), Bupleurum latissimum (Korean National Arboretum), Maackia fauriei (Asian Flora), and Hepatica insularis (asianflora). Endemic genera include a fern Mankyua (Miami Univ.), Megaleranthis (flickr), and Coreanomecon (Species Korea).
Important ecoregions include the Southern Korea Evergreen Forests (EoE) and the Central Korean Deciduous Forest (EoE). Information on endemic Korean animals and plants can be found at (Wild Fauna and Flora of Korea). A book on the endemic species of Korea can be found at (me.go.kr pdf file). Additional Korean Peninsula endemic species that are shared with North Korea can be found here.