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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.[2] 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]

Ryukyu black-breasted leaf turtle
Geoemyda japonica by OpenCage.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Family: Geoemydidae
Genus: Geoemyda
G. japonica
Binomial name
Geoemyda japonica
Fan, 1931
  • Geoemyda spengleri japonica Fan, 1931
  • Geoemyda japonica Yasukawa, Ota & Hikida, 1992
  • Geoemyda japonicus Joseph-Ouni, 2004

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.[2]

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.[3]


  1. ^ 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 2010-12-17. Retrieved 29 May 2012.
  2. ^ a b 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. Retrieved 2008-11-23.
  3. ^ Buskirk et al. (2005).

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