Trans-Andean Vine Snake

Trans-Andean Vine Snake

Oxybelis transandinus

Silhouette: Alex Slavenko · PhyloPic

Daily sighting probability ~20% · Possible
at Machalilla National Park

In 3 days ~50% in a week ~80%

11 Verified sightings at Machalilla National Park From 2019 to 2026
11 In 1 park
April Best month
☀️🌙 Day & Night When it's spotted

About the Trans-Andean Vine Snake

Oxybelis transandinus is a species of snake. The species was originally described in 2021 by Omar Torres-Carvajal, Mauricio Mejía-Guerrero and Claudia Terán from the Museo de Zoología of the Pontificia Universidad Católica in Ecuador.

Oxybelis transandinus is a species of Neotropical vine snakes that is endemic to Ecuador. It has been recently described as being distinct from a similar species of vine snake; Oxybelis aeneus. Phylogenetic analyses has shown distinctive genetic differences.

The species has been observed in Ecuador. The Holotype has been collected in Bosqueira Protected Forest and is an adult male. Paratypes were collected throughout the Pacific lowlands of Ecuador. The species have been observed in dry ecosystems where the snake is active from the ground up to 1.5 meters in shrubs.

The name of the species is derived from Latin, where "Trans", means beyond and "Andinus" means Andean. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Machalilla National Park 🇪🇨 Ecuador
~20%

More parks will be added in future updates.

Before you go

What are the chances of seeing a Trans-Andean Vine Snake in Machalilla National Park?

Possible

About 20% of wildlife watchers report a Trans-Andean Vine Snake sighting in Machalilla National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 6th most-seen of the 13 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.

When is the best time to see a Trans-Andean Vine Snake in Machalilla National Park?

April and October

In those months about 50% of wildlife watchers report a Trans-Andean Vine Snake in Machalilla National Park on a given day, against under 5% in May–June, September and December–March, the lowest months.

What time of day is best to see a Trans-Andean Vine Snake?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Trans-Andean Vine Snake sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.

Where else can you see a Trans-Andean Vine Snake?

Only Machalilla National Park, in our data

Machalilla National Park is the only park on Wallace's Line with enough records to rate Trans-Andean Vine Snake sightings: about 20% of wildlife watchers there report one on a given day.

Where does the Trans-Andean Vine Snake sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Trans-Andean Vine Snake is recorded against all the reptiles logged in Machalilla National Park (11 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.

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