Tropidodipsas fasciata
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~20% in a week ~50%
The banded snail sucker (Tropidodipsas fasciata) is a species of snake of the family Colubridae. The snake is found in Mexico, in the states of Guerrero, Tamaulipas, Veracruz and Oaxaca, and possibly in Guatemala. Species Tropidodipsas fasciata at The Reptile Database Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Calakmul Biosphere Reserve | 🇲🇽 Mexico |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Banded Snail Sucker sighting in Calakmul Biosphere Reserve on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 39th most-seen of the 46 reptiles we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
June and July
In those months about 20% of wildlife watchers report a Banded Snail Sucker in Calakmul Biosphere Reserve on a given day, against under 5% in August to May, the lowest months. Those are among Calakmul Biosphere Reserve's wettest months, with about 90 mm of rain a month against 15 mm in February.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Banded Snail Sucker sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Calakmul Biosphere Reserve, in our data
Calakmul Biosphere Reserve is the only park on Wallace's Line with enough records to rate Banded Snail Sucker sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Colubridae
The closest relatives of the Banded Snail Sucker that you can see in Calakmul Biosphere Reserve (family Colubridae, Colubrid Snakes) are Speckled Racer (about 30%), Black-striped Snake (about 20%) and Faded Black-striped Snake (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Banded Snail Sucker is recorded against all the reptiles logged in Calakmul Biosphere Reserve (6 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.
