Black-bellied Swamp Snake
Hemiaspis signata
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyElapidae (Elapid Snakes)
- GenusHemiaspis (Grey and Marsh Snakes)
- SpeciesHemiaspis signata (Black-bellied Swamp Snake)
Hemiaspis signata (common names: black-bellied swamp snake and marsh snake) is a species of venomous elapid snake endemic to Australia, where it is found along the east coast. Recognisable by two distinctive narrow white lines on the face, the colour can range from pale olive to black top with a dark grey to black belly. Adults can grow to 70 cm in length, but most specimens are smaller than this. Their diet consists mainly of skinks and frogs. It was first described in 1859 by Giorgio Jan as Alecto signata. Wikipedia →
5–10% of wildlife watchers report a Black-bellied Swamp Snake sighting in Royal National Park, based on 7 days of visitor records from GBIF citizen-science data.
Closest Relatives at Royal National Park
Red-bellied Black Snake
Pseudechis porphyriacus
Yellow-faced Whipsnake
Demansia psammophis
Golden Crowned Snake
Cacophis squamulosus
Eastern Brown Snake
Pseudonaja textilis
Small-eyed Snake
Cryptophis nigrescens
Eastern Tiger Snake
Notechis scutatus
Broad-headed Snake
Hoplocephalus bungaroides
Common Death Adder
Acanthophis antarcticus
Red-naped Snake
Furina diadema
Mustard-bellied Snake
Drysdalia rhodogaster
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · 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 | Lamington National Park | 🇦🇺 Australia | |
| 2 | Springbrook National Park | 🇦🇺 Australia | |
| 3 | Royal National Park | 🇦🇺 Australia | |
| 4 | Booderee National Park | 🇦🇺 Australia | |
| 5 | Daintree National Park | 🇦🇺 Australia | |
| 6 | Blue Mountains National Park | 🇦🇺 Australia |
Quick answers
What are the chances of seeing a Black-bellied Swamp Snake in Royal National Park?
About 5% of wildlife watchers report a Black-bellied Swamp Snake sighting in Royal National Park, based on 7 days of visitor records from GBIF citizen-science data.
When is the best time to see Black-bellied Swamp Snake in Royal National Park?
May has the highest sighting rate for Black-bellied Swamp Snake in Royal National Park in our monthly data.