Elaphe quadrivirgata
Silhouette: Félix Landry Yuan · PhyloPic
In 3 days ~60% in a week ~90%
Elaphe quadrivirgata, commonly known as the Japanese four-lined ratsnake or the Japanese striped snake (Japanese: shimahebi = striped snake), is a species of non-venomous colubrid snake native to Japan. It is found in all areas of Japan apart from the Ryukyu Islands.
It typically grows to a length of 1-1.5 m (40–60 in). The snake has a yellow or light brown ground color, and gets its scientific and common names from the four black lengthwise stripes sported by most individuals of the species. All-black variants exist; these are known in Japan as karasu-hebi (crow snakes).
Juveniles are reddish, and instead of lengthwise stripes have crosswise stripes and a spotted pattern similar to some venomous snakes. photo The dorsal scales, which are weakly keeled in adults but may be smooth in juveniles, are arranged in 19 rows. The ventrals, which are angulate laterally, number 193–210. The anal scale is usually divided, and the subcaudals, which are also divided (paired), number 70–96.
Elaphe quadrivirgata is an active, diurnal snake. It feeds on a variety of prey items, including frogs, lizards, insects, rodents, as well as... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Pairi Daiza | 🇧🇪 Belgium | |
| 2 | Sapporo Maruyama Zoo | 🇯🇵 Japan | |
| 3 | Ueno Zoological Gardens (West Garden) | 🇯🇵 Japan | |
| 4 | Marine World Uminonakamichi | 🇯🇵 Japan |
Possible
About 20% of wildlife watchers report a Japanese Four-lined Ratsnake sighting in Nagoya on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 6th most-seen of the 9 reptiles we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
June, September and November
In those months about 40% of wildlife watchers report a Japanese Four-lined Ratsnake in Nagoya on a given day, against under 5% in May, October and December–March, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Japanese Four-lined Ratsnake sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 4 cities where we can rate Japanese Four-lined Ratsnake sightings, Nagoya has the highest daily chance: about 20%. Next come Osaka (Japan, about 10%) and Sapporo (Japan, about 10%).
GBIF citizen-science records
It is estimated from how often the Japanese Four-lined Ratsnake is recorded against all the reptiles logged in Nagoya (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.
