Frog of the Week

Pacific Horned Frog (Ceratophrys stolzmanni)

Pacific Horned Frog
photo by Santiago Ron

Common Name: Pacific Horned Frog or Stolzmann’s Horned Frog
Scientific Name: Ceratophrys stolzmanni
Family: Ceratophryidae – Horned Frog family
Locations: Ecuador and Peru
Male Size: 1.8 – 2.6 inches (48 – 68 mm)
Female Size: 2 – 3.2 inches (53 – 82 mm)

The Pacific Horned Frog lives along the Pacific coast of southern Ecuador and the very northern coast of Peru. They don’t live a long life, only about 3 years. The frog is most active during the rainy season (January – May). They spend most of their time sitting still in the leaf litter, waiting for their prey to walk by. Their prey items is anything that they can fit into their mouth. The frogs do breed in temporary pools formed by the rains during the rainy season.

During the other parts of the year, they spend their time underground in a dormant state. They form a cocoon of dead skin around their body during this time to prevent them from drying out during the hot months.

The International Union for the Conservation of Nature (IUCN) Red List assesses the Pacific Horned Frog as Vulnerable to Extinction. A lot of the frog’s habitat has been lost to farms, urban areas, and logging.

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