Frog of the Week

Yucatecan Casquehead Tree Frog (Triprion petasatus)

Yucatecan Casquehead Treefrog
photo by Maximilian Paradiz

Common Name: Yucatecan Casquehead Tree Frog, Yucatán Casque-headed Treefrog,
Scientific Name: Triprion petasatus
Family: Hylidae – Tree Frog family
Locations: Belize, Guatemala, Honduras, and Mexico
Female Size: 2.6 – 3 inches (65 mm – 75.2 mm)
Male Size 1.9 – 2.4 inches (48.1 mm – 60.8 mm)

The Yucatecan Casquehead Tree Frog lives throughout the Yucatan Peninsula, spending most of its time in holes in trees. Their unique head shape is used to block the entrances to these holes and due to the ossification of their head, they lose very little water this way compared to frogs blocking the holes with their body. The frog breeds during the rainy season from April to October. The males will call from around 8.2 feet (2.5 meters) above the ground near pools and basins formed in limestone. Their call sounds like a duck’s quack. The female lays her eggs in these basins.

The International Union for the Conservation of Nature (IUCN) Red List assess the Yucatecan Casquehead Tree Frog as Least Concern for Extinction. The frog has a wide range and a large population.

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