Mountain Keelback
Helicops angulatus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyColubridae (Colúbrids)
- GenusHelicops (Mountain Keelbacks)
- SpeciesHelicops angulatus (Mountain Keelback)
The brown-banded water snake (Helicops angulatus) is a species of aquatic snake found in tropical South America and Trinidad and Tobago. It is also known as the water mapepire. Wikipedia →
10–20% of wildlife watchers report a Mountain Keelback sighting in Yasuní National Park, based on 16 days of visitor records from GBIF citizen-science data.
Closest Relatives at Yasuní National Park
Shreve's Keelback
Helicops pastazae
Hagmann's Keelback
Helicops hagmanni
Blunthead Tree Snake
Imantodes cenchoa
Diurnal Vine Snake
Xenoxybelis argenteus
Catesby's Snail-eater
Dipsas catesbyi
Wagler's Sipo
Chironius scurrulus
Tropical Flat Snake
Siphlophis compressus
Big Ground Snake
Atractus major
South American Sipo
Chironius multiventris
Northern Woodland Racer
Drymoluber dichrous
Olive Forest Racer
Dendrophidion dendrophis
Chicken Snake
Spilotes pullatus
📅 Monthly Probability
🌙 When They're Spotted
Most active during nighttime hours (6pm–6am) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Yasuní National Park | 🇪🇨 Ecuador | |
| 2 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador | |
| 3 | Tambopata National Reserve | 🇵🇪 Peru | |
| 4 | Manu National Park | 🇵🇪 Peru | |
| 5 | Canaima National Park | 🇻🇪 Venezuela | |
| 6 | Madidi National Park | 🇧🇴 Bolivia | |
| 7 | Amboró National Park | 🇧🇴 Bolivia | |
| 8 | Caroni Swamp | 🇹🇹 Trinidad and Tobago | |
| 9 | Sierra de la Macarena National Park | 🇨🇴 Colombia | |
| 10 | Anavilhanas National Park | 🇧🇷 Brazil | |
| 11 | Amacayacu National Natural Park | 🇨🇴 Colombia |
Quick answers
What are the chances of seeing a Mountain Keelback in Yasuní National Park?
About 14% of wildlife watchers report a Mountain Keelback sighting in Yasuní National Park, based on 16 days of visitor records from GBIF citizen-science data.
When is the best time to see Mountain Keelback in Yasuní National Park?
April has the highest sighting rate for Mountain Keelback in Yasuní National Park in our monthly data.