South-American Snake-headed Turtle

South-American Snake-headed Turtle

Hydromedusa tectifera

Silhouette: SeismicShrimp · PhyloPic

Daily sighting probability ~10% · With luck
at Iguaçu National Park
5 Verified sightings at Iguaçu National Park From 2019 to 2026
6 Verified sightings across all 2 parks From 2019 to 2026
June Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the South-American Snake-headed Turtle

The Argentine snake-necked turtle (Hydromedusa tectifera), also known commonly as the South American snake-necked turtle is a species of turtle in the family Chelidae. The species is known for the long neck to which its common names refer. Despite appearances, the Argentine snake-necked turtle is probably more closely related to the mata mata (Chelus fimbriatus) than to the Australian snake-necked turtles in the genus Chelodina. H. tectifera is found in northern Argentina, Uruguay, Paraguay, and southern Brazil. Not much is known about it, as it has not been extensively researched. It is a popular pet in the exotic pet trade.

H. tectifera can reach up to 28 centimeters (11 inches) in straight carapace length. Its carapace is strongly keeled, and it can also be distinguished by black and yellowish markings along its head and neck. Generally, the females are larger than the males which often have larger tails.

The Argentine snake-necked turtle lives in slow-moving ponds, rivers, streams, and marshes, preferably with aquatic vegetation. In coastal areas, it will enter brackish water, and it may hibernate in colder areas of its distribution... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Iguaçu National Park 🇧🇷 Brazil
~10%
2 Iguazú National Park 🇦🇷 Argentina
Insufficient data

Quick answers

What are the chances of seeing a South-American Snake-headed Turtle in Iguaçu National Park?

About 10% of wildlife watchers report a South-American Snake-headed Turtle sighting in Iguaçu National Park, based on 5 verified sightings from GBIF citizen-science data.

When is the best time to see South-American Snake-headed Turtle in Iguaçu National Park?

June has the highest sighting rate for South-American Snake-headed Turtle in Iguaçu National Park in our monthly data.

← Back to Iguaçu National Park