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 →
Closest Relatives at Blue Mountains National Park
Red-bellied Black Snake
Pseudechis porphyriacus
Highlands Copperhead
Austrelaps ramsayi
Eastern Tiger Snake
Notechis scutatus
Mustard-bellied Snake
Drysdalia rhodogaster
Eastern Brown Snake
Pseudonaja textilis
Small-eyed Snake
Cryptophis nigrescens
Common Death Adder
Acanthophis antarcticus
Broad-headed Snake
Hoplocephalus bungaroides
Yellow-faced Whipsnake
Demansia psammophis
Golden Crowned Snake
Cacophis squamulosus
Bandy Bandy
Vermicella annulata
Red-naped Snake
Furina diadema
📅 Monthly Probability
Fewer than 5 records of Black-bellied Swamp Snake at Blue Mountains National Park — not enough to chart months honestly.
☀️ 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 |