Sibon annulatus
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~30% in a week ~60%
Sibon annulatus, also known as the ringed snail sucker, is a species of snake in the family, Colubridae. It is found in Costa Rica, Panama, Nicaragua, Honduras, Colombia, and Ecuador. Species Sibon annulatus at The Reptile Database Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 2 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 3 | Tapantí-Macizo de la Muerte National Park | 🇨🇷 Costa Rica |
With luck
About 10% of wildlife watchers report a Ringed Snail Sucker sighting in Arenal Volcano National Park on a given day, based on 28 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 27th most-seen of the 64 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, July and October
In those months about 20% of wildlife watchers report a Ringed Snail Sucker in Arenal Volcano National Park on a given day, against about 10% in March–June, August–September and November–January, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Ringed Snail Sucker sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
2nd of 3
Of the 3 parks where we can rate Ringed Snail Sucker sightings, Arenal Volcano National Park ranks 2nd at about 10%. The best odds are in Braulio Carrillo National Park (Costa Rica, about 20%).
Same genus: Sibon
The closest relatives of the Ringed Snail Sucker that you can see in Arenal Volcano National Park (genus Sibon, Snail Suckers) are Cloudy Snail-eating Snake (about 20%) and Mottled Snail-eater (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Ringed Snail Sucker is recorded against all the reptiles logged in Arenal Volcano National Park (28 verified sightings from 2019 to 2026), 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.
