Rhabdophis subminiatus
In 3 days ~30% in a week ~60%
Rhabdophis subminiatus, commonly called the red-necked keelback or red-necked keelback snake, is a species of venomous snake in the subfamily Natricinae of the family Colubridae. Unusual for colubrids, it is venomous. The specific name subminiatus refers to the typical reddish coloration ("miniatus" = "scarlet, vermilion"), which may be limited to the neck, or more extensive (e.g., photo at left). The subspecific name, helleri, is in honor of American zoologist Edmund Heller.
Rhabdophis subminiatus is restricted to the Indonesian islands of Java and Sumatra. Historically the species was considered to have a much wider distribution, but this changed when it was realized that the species was actually a species complex.
Rhabdophis subminiatus has a greenish hue with red and yellow regions near the head. It grows to 70 to 90 cm (27.5 to 35.5 in) in total length (including tail). Female is much larger than male. During mating, multiple males may swarm a single female.
The red-necked keelback generally lives near ponds, where it consumes frogs, fish, lizards and small mammals. Rhabdophis... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Jakarta | 🇮🇩 Indonesia |
With luck
About 10% of wildlife watchers report a Red-necked Keelback sighting in Jakarta on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 35th most-seen of the 47 reptiles we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
February, May and November
In those months about 20% of wildlife watchers report a Red-necked Keelback in Jakarta on a given day, against under 5% in June–September and December–January, the lowest months.
Only Jakarta, in our data
Jakarta is the only city on Wallace's Line with enough records to rate Red-necked Keelback sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Colubridae
The closest relatives of the Red-necked Keelback that you can see in Jakarta (family Colubridae, Colubrid Snakes) are Oriental Whipsnake (about 60%), Common Bronze-back (about 40%) and Common Wolf Snake (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Red-necked Keelback is recorded against all the reptiles logged in Jakarta (12 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.
