Formosa Slug Snake

Formosa Slug Snake

Pareas formosensis

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
50–60% · Likely
overall probability at Ba Be National Park

Closest Relatives at Ba Be National Park

White-spotted slug snake
LC

White-spotted slug snake

Reptile

Pareas margaritophorus

Insufficient data

📅 Monthly Probability

20–30
Jan
50–60
Feb
30–40
Mar
20–30
Apr
70–80
May
60–70
Jun
40–50
Jul
20–30
Aug
30–40
Sep
30–40
Oct
50–60
Nov
20–30
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

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 Ba Be National Park 🇻🇳 Vietnam
50–60%
2 Cuc Phuong National Park 🇻🇳 Vietnam
40–50%

Quick answers

What are the chances of seeing a Formosa Slug Snake in Ba Be National Park?

About 50% of visitor-days record a Formosa Slug Snake sighting in Ba Be National Park, based on 20 observer-days of citizen-science data from GBIF.

When is the best time to see Formosa Slug Snake in Ba Be National Park?

May has the highest sighting rate for Formosa Slug Snake in Ba Be National Park in our monthly data.

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