Sibon longifrenis
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~50% in a week ~80%
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 Braulio Carrillo National Park on a given day, based on 42 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 21st most-seen of the 57 reptiles we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
November
In that month about 40% of wildlife watchers report a Mottled Snail-eater in Braulio Carrillo National Park on a given day, against under 5% in December, the lowest month. That is one of Braulio Carrillo National Park's wettest months, with about 550 mm of rain against 170 mm in April.
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, Braulio Carrillo National Park ranks 2nd at about 20%, level with the leaders once rounded. The best odds are in Tenorio Volcano National Park (Costa Rica, about 20%).
Same genus: Sibon
The closest relatives of the Mottled Snail-eater that you can see in Braulio Carrillo National Park (genus Sibon, Snail Suckers) are Cloudy Snail-eating Snake (about 30%) and Ringed Snail Sucker (about 20%), 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 Braulio Carrillo National Park (42 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.
