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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Cladus: Archelosauria
Division: Pan-Testudines
Division: Testudinata
Ordo: Testudines
Subordo: Cryptodira
Superfamilia: Testudinoidea

Familia: Geoemydidae
Subfamilia: Geoemydinae
Genus: Geoemyda
Species: Geoemyda japonica

Geoemyda japonica Fan 1931:148
Holotype: not designated
Type locality: “Japan and other Pacific Islands”


Geoemyda spengleri japonica Fan 1931:148
Geoemyda japonica Yasakuwa et al. 1992
Geoemyda spengleri japonica Iverson 1992:123
Geoemyda japonica Obst 2003:17
Geoemyda japonica Goris & Maeda 2004
Geoemyda japonica TTWG 2014


Fan, T. H. 1931. Preliminary report of reptiles from Yashan, Kwangsi, China. Bull. Dept. Biol. Coll. Sci. Sun Yatsen Univ., Canton, 11 (4): 1–154
Yasukawa, Y. and H. Ota. 2008. Geoemyda japonica Fan 1931 – Ryukyu black-breasted leaf turtle, Okinawa black-breasted leaf turtle. Chelonian Research Monographs No. 5, pp. 002.1-002.6, doi:10.3854/crm.5.002.japonica.v1.2008
Turtle Taxonomy Working Group (Rhodin, A.G.J., Iverson, J.B., Bour, R., Fritz, U., Georges, A., Shaffer, H.B. & van Dijk, P.P.). 2017. Turtles of the World: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status (8th Ed.). Chelonian Research Monographs 7: 1–292. ISBN 978-1-5323-5026-9. DOI: 10.3854/crm.7.checklist.atlas.v8.2017. Paywall. Full article (PDF). Reference page.


Uetz, P. & Hallermann, J. 2023. Geoemyda japonica. The Reptile Database.
IUCN: Geoemyda japonica (Endangered)

Vernacular names
čeština: Želva okinavská
Deutsch: Japanische Zacken-Erdschildkröte
English: Ryukyu black-breasted leaf turtle, Okinawa Black-breasted Leaf Turtle
日本語: リュウキュウヤマガメ

The Ryukyu black-breasted leaf turtle or Ryukyu leaf turtle (Geoemyda japonica) is a species of turtles in the family Geoemydidae (formerly Bataguridae) endemic to the Ryukyu Islands in Japan. In 1975, the species was designated a National Natural Monument of Japan.[3] It grows to about 5–6 inches long. In captivity, it feeds on worms, snails, insects, and fruit. Due to its rarity and very attractive appearance, this species is highly coveted by turtle collectors worldwide.[citation needed]

At first it was considered a subspecies of Geoemyda spengleri, and named Geoemyda spengleri japonica. It was redescribed as a separate species and given its current binomial name in 1992.[3]

Hybrids between different genera of Geoemydidae are rather commonplace. This species is known to hybridize with Cuora flavomarginata males in captivity and in the wild.[4]

"Appendices | CITES". Retrieved 2022-01-14.
Fritz Uwe; Peter Havaš (2007). "Checklist of Chelonians of the World" (PDF). Vertebrate Zoology. 57 (2): 222. ISSN 1864-5755. Archived from the original (PDF) on 2011-05-01. Retrieved 29 May 2012.
Yasukawa, Yuichirou; Ota, Hidetoshi (2008-05-15). "Geoemyda Japonica Fan 1931 – Ryukyu Black-Breasted Leaf Turtle, Okinawa Black-Breasted Leaf Turtle" (PDF). Chelonian Research Monographs. Chelonian Research Foundation. 5 (5): 002.1–6. doi:10.3854/crm.5.002.japonica.v1.2008. ISSN 1088-7105. Archived from the original (PDF) on 2008-11-21. Retrieved 2008-11-23.

Buskirk et al. (2005).

Asian Turtle Trade Working Group (2000). "Geoemyda japonica". The IUCN Red List of Threatened Species. IUCN. 2000: e.T9042A97362115. doi:10.2305/IUCN.UK.2000.RLTS.T9042A12952738.en. Listed as Endangered (EN A1ce, B1+2c)
Buskirk, James R.; Parham, James F. & Feldman, Chris R. (2005): On the hybridisation between two distantly related Asian turtles (Testudines: Sacalia × Mauremys). Salamandra 41: 21–26. PDF fulltext[permanent dead link]

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