Wrinkled frog
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An illustration based on the real animal.
A little discovery to share.
Wrinkled frogs eat small animals such as arthropods.
THE REAL WORLD
The real Wrinkled frog
- Scientific name
- Glandirana reliquia
- Japanese name
- ムカシツチガエル
- Group
- Amphibians and reptiles
- Class
- Amphibia
- Order
- Anura
- Family
- Ranidae
- Genus
- Glandirana
This frog lives just in the Kanto region and on the Pacific side of the Tohoku region, by forest waters and in wetlands.
It was long thought to be the same species as the tsuchigaeru, a frog found widely across Japan, but it has been described as a new species.
It looks almost the same as the tsuchigaeru, but DNA studies show it is closer to a related frog that lives on the Korean Peninsula.
Basic data
- Size
- Body length: about 50 mm
- Diet
- Arthropods and other small animals
- Range
- Kanto and the Pacific side of Tohoku in Japan
- Conservation status in Japan
- Near Threatened (NT)Ministry of the Environment of Japan, 5th Red List (2026)
Watch wild animals from a distance. Do not touch or feed them, and take care of the places where they live.
Names around the world
- 日本語
- ムカシツチガエル
Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.
Sources and how we check
- 井の頭自然文化園 — ムカシツチガエルChecked: 2026-11-03
- Ministry of the Environment of Japan, 5th Red List (2026)Checked: 2026-11-07
We check each fact against its source. The illustrations simplify how the real animal looks.
The classification (class, order, family, genus) follows Wikidata records, checked against GBIF. Classifications can change as research goes on.
The basic data are the values given in each source. They vary with how the animal is measured, whether it is male or female, and whether it lives in the wild or in captivity.
The conservation status in Japan is the category in the Red Lists of the Ministry of the Environment of Japan, which assess the risk of extinction for wild animals in Japan.
This page was translated from the original Japanese with the help of AI.
Report a mistakeEXHIBIT INFORMATION
Places that keep or show the Wrinkled frog
Zoos, aquariums and other places whose official websites say they keep or show this animal.
Kanto
Displays can change with the animals’ health and the seasons. Check each facility’s official website before you go.
RELATIVES
Others in Ranidae
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