Sibon longifrenis
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~40% in a week ~70%
Sibon longifrenis, Stejneger's snail sucker or lichen-colored snail sucker, is a species of snake in the family Colubridae. It is found in Panama, Costa Rica, Honduras and Nicaragua. The Sibon longifrenis primarily feeds on amphibian eggs, particularly frog eggs, but will also feed on small oligochaetes and mollusks, such as slugs and snails. The absence of amphibian eggs in their diet may result in nutritional deficit and poor body conditions.
Species Sibon longifrenis at The Reptile Database Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tenorio Volcano National Park | 🇨🇷 Costa Rica | |
| 2 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 3 | Arenal Volcano National Park | 🇨🇷 Costa Rica |
Possible
About 20% of wildlife watchers report a Mottled Snail-eater sighting in Arenal Volcano National Park on a given day, based on 40 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 24th most-seen of the 64 reptiles we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
January, April–June and September–November
In those months about 20% of wildlife watchers report a Mottled Snail-eater in Arenal Volcano National Park on a given day, against about 10% in February–March, July–August and December, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Mottled Snail-eater 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.
Among the best
Of the 3 parks where we can rate Mottled Snail-eater sightings, Arenal Volcano National Park ranks 3rd at about 20%, level with the leaders once rounded. The best odds are in Tenorio Volcano National Park (Costa Rica, about 20%) and Braulio Carrillo National Park (Costa Rica, about 20%).
Same genus: Sibon
The closest relatives of the Mottled Snail-eater that you can see in Arenal Volcano National Park (genus Sibon, Snail Suckers) are Cloudy Snail-eating Snake (about 20%) and Ringed Snail Sucker (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mottled Snail-eater is recorded against all the reptiles logged in Arenal Volcano National Park (40 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.
