Banded Swamp Snake
Homalopsis buccata
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassSquamata
- FamilyHomalopsidae (Mud Snakes)
- GenusHomalopsis
- SpeciesHomalopsis buccata (Banded Swamp Snake)
About the Banded Swamp Snake
Homalopsis buccata (puff-faced water snake or masked water snake) is a species of mildly venomous snake in the Homalopsidae family found in tropical areas of Southeast Asia. Upper labials 1–4 contact single loreal; two prefrontals; 33–40 dorsal scale rows at mid-body, usually reduced to fewer than 30 posteriorly; one postocular plus a postsubocular; 12 (11–14) upper labials; ventral count fewer than 166.
Homalopsis buccata has a banded pattern and usually reaches 1 meter (3 feet) in length. They have a somewhat similar body build to the anaconda, but instead of constriction they use a mild venom from a grooved rear fang to subdue prey.
H. buccata ranges from northern Sumatra to Salanga Island, Indonesia and Borneo; it is present on the Malaysian peninsula and in extreme southern Thailand (vicinity of Pattani). H. buccata are ovoviviparous, meaning they do not lay eggs but rather give birth to live young. Females give birth to 2-20 live young, with an average of 9.26 young per breeding. Studies have shown this species breeds year round, with a peak season of October–March (though no distinctive breeding season was found).
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Closest Relatives at Tanjung Puting National Park
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 | Daily sighting probability |
|---|---|---|---|
| 1 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 2 | Tanjung Puting National Park | 🇮🇩 Indonesia | |
| 3 | Kerinci Seblat National Park | 🇮🇩 Indonesia | |
| 4 | Khao Sok National Park | 🇹🇭 Thailand |