Oriental Odd-tooth Snake

Fascinating facts about the Oriental Odd-tooth Snake

• A 30-70 cm reptile slithers through the forest floor of Japan, its black stripes flashing against a lighter belly as it stalks frogs, lizards and even other snakes. Its size lets it slip into leaf litter where larger predators cannot follow, revealing how modest dimensions can carve a niche in crowded forests.
• First noted in 1880, this creature was described by two scientists simultaneously, yet Hilgendorf's paper hit the press just before Günther's. The double credit highlights a moment of scientific rivalry that still shapes how we catalog biodiversity today.
• Found on Hokkaido, Honshu, Shikoku, Kyushu, the Goto and Oki groups, and even the remote Shiashkotan island, its spread across several islands shows how a single species can bridge diverse habitats, reminding us that island ecosystems are more connected than they appear.

At a glance

About the Oriental Odd-tooth Snake

The Oriental odd-tooth snake, Lycodon orientalis, is a colubrid about 30–70 cm long, with black stripes and a lighter underside. It is endemic to Japan, occurring on Hokkaido, Honshu, Shikoku, Kyushu, the Goto Islands, Iki Island, Izu Ōshima, the Oki Islands, Sado Island, Tanegashima, Yakushima, and has been reported from Shiashkotan.

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