Lycodon orientalis
In 3 days ~10% in a week ~20%
The Oriental odd-tooth snake (Lycodon orientalis), sometimes called the Japanese odd-tooth snake, is a species endemic to Japan, belonging to the family Colubridae. It is found in Hokkaido, Honshu, Shikoku, Kyushu, the Goto Islands, Iki Island, Izu Ōshima, the Oki Islands, Sado Island, Tanegashima, and Yakushima. It has also been reported in Shiashkotan, one of the Chishima Islands.
The snake was first described in 1880 by both Hilgendorf and Günther However, according to Stejneger the description by Hilgendorf was published before that of Günther. The full-length snake is about 30–70 cm and has black stripes with a lighter coloured underside. They live in the forest, mainly in the forest floor, and prey upon other snakes, frogs and lizards, such as Achalinus spinalis, the Japanese common toad (Bufo japonicus), Takydromus tachydromoides, and Plestiodon japonicus.
Animal Diversity Web : Dinodon orientale accessed 27 August 2012 Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tokyo | 🇯🇵 Japan |
Rare
Under 5% of wildlife watchers report an Oriental Odd-tooth Snake sighting in Tokyo on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 14th most-seen of the 15 reptiles we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
September
In that month about 10% of wildlife watchers report an Oriental Odd-tooth Snake in Tokyo on a given day, against under 5% in October to August, the lowest months. That is one of Tokyo's wettest months, with about 210 mm of rain against 75 mm in February.
Only Tokyo, in our data
Tokyo is the only city on Wallace's Line with enough records to rate Oriental Odd-tooth Snake sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Colubridae
The closest relatives of the Oriental Odd-tooth Snake that you can see in Tokyo (family Colubridae, Colubrid Snakes) are Japanese Rat Snake (about 20%), Japanese Four-lined Ratsnake (about 10%) and Japanese Keelback (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Oriental Odd-tooth Snake is recorded against all the reptiles logged in Tokyo (8 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
