Erythrolamprus pseudoreginae
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~60% in a week ~90%
Erythrolamprus pseudoreginae, the Tobago stream snake, is a species of snake in the family Colubridae. The species is found in the northeastern forests of the island of Tobago. The species name pseudoreginae was chosen because it was previously considered to be a member of the separate species Erythrolamprus reginae.
Erythrolamprus pseudoreginae belongs to the genus Erythrolamprus, which contains over 50 species. The genus Erythrolamprus belongs to the subfamily Dipsadinae, which is sometimes referred to as the family Dipsadidae. The relationships of Erythrolamprus species located in northern South America (Venezuela) can be shown in the cladogram below, based on molecular DNA analysis:
Erythrolamprus pseudoreginae is dark moss green to olive brown colored, with a lighter yellow to red colored belly, and a faint lateral stripe. Specimens measured in length from 47.6 cm (18.7 in) to 56.6 cm (22.3 in). It is diurnal, and likely preys upon small ground-dwelling frogs.
It lives in northeastern Tobago, within forested ravines of the Main Ridge. Its habitat appears to be restricted to the lower montane rainforests... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Main Ridge Forest Reserve | 🇹🇹 Trinidad and Tobago |
More parks will be added in future updates.
Possible
About 30% of wildlife watchers report a Tobago Stream Snake sighting in Main Ridge Forest Reserve on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 14th most-seen of the 24 reptiles we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
October
In that month about 60% of wildlife watchers report a Tobago Stream Snake in Main Ridge Forest Reserve on a given day, against under 5% in February–April and August, the lowest months. That is one of Main Ridge Forest Reserve's wettest months, with about 230 mm of rain against 60 mm in February.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Tobago Stream Snake sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Main Ridge Forest Reserve, in our data
Main Ridge Forest Reserve is the only park on Wallace's Line with enough records to rate Tobago Stream Snake sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Tobago Stream Snake is recorded against all the reptiles logged in Main Ridge Forest Reserve (8 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.
