Xenochrophis vittatus
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~10% in a week ~30%
The striped keelback (Xenochrophis vittatus) is a species of colubrid snake native to Indonesia. It has also been introduced to Singapore and Puerto Rico. The striped keelback is a medium sized snake, with females growing to about 70 cm in length and males reaching 50 cm. They are noticeably thin and are colored bronze with black stripes running down the top and sides of the body. The chin and ventral areas of this snake is barred black and white.
The native range of this snake is the western parts of Indonesia, mostly Sumatra and Java. Boulenger reported this species in Sulawesi, but as this was in 1897 and no other records have been made it is likely this snake is not found there.
They have been introduced to Singapore, with the first record in July 1982 at Pandan Gardens. It was first recorded in western Singapore, but has since spread to the eastern parts of the island where it can be found around beaches and mangrove swamps. The white-throated kingfisher has been observed to eat these snakes in Singapore.
This species was first documented from Puerto Rico in 2011 when two adult snakes were found under a steel panel in Toa Baja. It has since... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore |
Rare
Under 5% of wildlife watchers report a Banded Keelback sighting in Singapore on a given day, based on 27 verified sightings from GBIF citizen-science data. It is the 46th most-seen of the 64 reptiles we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May, July and November
In those months about 10% of wildlife watchers report a Banded Keelback in Singapore on a given day, against under 5% in June, August–October and December–April, the lowest months.
Between 3 and 6 am
Across all the parks we cover, that three-hour window holds the most Banded Keelback sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Only Singapore, in our data
Singapore is the only city on Wallace's Line with enough records to rate Banded Keelback sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Banded Keelback is recorded against all the reptiles logged in Singapore (27 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.
