Forest Water Snake

Forest Water Snake

Thamnosophis infrasignatus

Silhouette: SeismicShrimp · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
Daily sighting probability ~30% · Possible
at Ranomafana National Park
10 Verified sightings at Ranomafana National Park From 2019 to 2026
10 Verified sightings across 1 park From 2019 to 2026
May Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Forest Water Snake

Thamnosophis infrasignatus, commonly known as the forest water snake, is a species of snake in the family Pseudoxyrhophiidae. It is endemic to Madagascar. Wikipedia →

Closest Relatives at Ranomafana National Park

Lateral Water Snake
LC Endemic

Lateral Water Snake

☀️ Diurnal Reptile

Thamnosophis lateralis

Daily sighting probability ~20% · Possible
Eastern Madagascar Water Snake
LC Endemic

Eastern Madagascar Water Snake

Reptile

Thamnosophis epistibes

Daily sighting probability Insufficient data
Ranomafana Big-headed Snake
LC Endemic

Ranomafana Big-headed Snake

🌅 Crepuscular Reptile

Compsophis laphystius

Daily sighting probability ~40% · Likely
Madagascar Cat-eyed Snake
LC Endemic

Madagascar Cat-eyed Snake

🌅 Crepuscular Reptile

Madagascarophis colubrinus

Daily sighting probability ~30% · Possible
Three-striped Ground Snake
LC

Three-striped Ground Snake

🌅 Crepuscular Reptile

Pseudoxyrhopus tritaeniatus

Daily sighting probability ~30% · Possible
Slender Smooth Snake
LC Endemic

Slender Smooth Snake

☀️ Diurnal Reptile

Liopholidophis rhadinaea

Daily sighting probability ~20% · Possible
Gold-collared Snake
LC Endemic

Gold-collared Snake

☀️ Diurnal Reptile

Liophidium rhodogaster

Daily sighting probability ~20% · Possible
White Banded Tree Snake
LC Endemic

White Banded Tree Snake

🌅 Crepuscular Reptile

Phisalixella arctifasciata

Daily sighting probability ~20% · Possible
Betsileo White-banded Tree Snake
LC Endemic

Betsileo White-banded Tree Snake

🌅 Crepuscular Reptile

Parastenophis betsileanus

Daily sighting probability Insufficient data
Bernier's Striped Snake
LC Endemic

Bernier's Striped Snake

☀️ Diurnal Reptile

Dromicodryas bernieri

Daily sighting probability Insufficient data
Eastern Rainforest Smooth Snake
LC Endemic

Eastern Rainforest Smooth Snake

Reptile

Liopholidophis dolicocercus

Daily sighting probability Insufficient data
White-lipped Smooth Snake
LC Endemic

White-lipped Smooth Snake

Reptile

Liophidium torquatum

Daily sighting probability Insufficient data

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Ranomafana National Park 🇲🇬 Madagascar
~30%

More parks will be added in future updates.

Quick answers

What are the chances of seeing a Forest Water Snake in Ranomafana National Park?

About 30% of wildlife watchers report a Forest Water Snake sighting in Ranomafana National Park, based on 10 verified sightings from GBIF citizen-science data.

When is the best time to see Forest Water Snake in Ranomafana National Park?

May has the highest sighting rate for Forest Water Snake in Ranomafana National Park in our monthly data.

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