False Water Cobra
Hydrodynastes gigas
Silhouette: Alex Slavenko · PhyloPic
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassSquamata
- FamilyColubridae (Colubrid Snakes)
- GenusHydrodynastes
- SpeciesHydrodynastes gigas (False Water Cobra)
About the False Water Cobra
Hydrodynastes gigas is a New World species of large dipsadine snake endemic to South America. Aglyphous snake with enlarged posterior maxillary teeth, not grooved, associated with Duvernoy's gland secretions. endemic to South America. Common names include false cobra, false water cobra, South American water cobra, and Brazilian smooth snake. It is also sometimes referred to as boipevaçu, ñacaniná or yacaniná, from the Guarani ñakanina ('alert head'), mboi-peba, surucucu-do-pantanal, and víbora ladradora ('barking snake').
A mildly venomous species, the false water cobra is so named because when it is threatened, it "hoods" as a true cobra (genus Naja) does. Unlike a true cobra, however, it does not rear up, but instead remains horizontal. No valid subspecies are currently recognized.
H. gigas is a large dipsadine snake that may exceed 3 m (10 ft) in length, with most adult specimens reaching about 2 m (7 ft) in length. The average weight is around 1.6 kg (3.5 lb), but some mature specimens can weigh up to 4.5 kg (9.9 lb). This species exhibits sexual dimorphism, with males being much smaller than females. The common name false water cobra is an allusion to its ability... Wikipedia →
Recent sightings of False Water Cobra in Iberá National Park
LIVEiNaturalistClosest Relatives at Iberá National Park
Wagler's Snake
Xenodon merremii
Jaeger's Ground Snake
Erythrolamprus jaegeri
Patagonian Racer
Philodryas patagoniensis
Rio Tropical Racer
Palusophis bifossatus
Golden Liophis
Erythrolamprus semiaureus
Leopard Keelback
Helicops leopardinus
False Mussurana
Boiruna maculata
Yellow-bellied Liophis
Erythrolamprus poecilogyrus
Lichtenstein's Green Racer
Philodryas olfersii
Equator Tree Snake
Dipsas turgida
Brazilian Green Racer
Philodryas aestiva
Amazon False Coral Snake
Oxyrhopus rhombifer
Global Distribution
Warmer areas are where this animal is recorded most often.
Parks Where Found
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iberá National Park | 🇦🇷 Argentina | |
| 2 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil | |
| 3 | Anavilhanas National Park | 🇧🇷 Brazil | |
| 4 | Madidi National Park | 🇧🇴 Bolivia |
Quick answers
What are the chances of seeing a False Water Cobra in Iberá National Park?
About 20% of wildlife watchers report a False Water Cobra sighting in Iberá National Park, based on 14 verified sightings from GBIF citizen-science data.
When is the best time to see False Water Cobra in Iberá National Park?
August has the highest sighting rate for False Water Cobra in Iberá National Park in our monthly data.