Pelophylax porosus porosus
Amazing fact
Tokyo daruma pond frogs are omnivores as tadpoles and become animal-eaters after turning into frogs.
上野動物園
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An illustration based on the real animal.
A little discovery to share.
Tokyo daruma pond frogs are omnivores as tadpoles and become animal-eaters after turning into frogs.
THE REAL WORLD
The real Pelophylax porosus porosus
- Scientific name
- Pelophylax porosus porosus
- Japanese name
- トウキョウダルマガエル
- Group
- Amphibians and reptiles
- Class
- Amphibia
- Order
- Anura
- Family
- Ranidae
- Genus
- Pelophylax
The Tokyo daruma pond frog is a subspecies of the daruma pond frog. Another subspecies, the Nagoya daruma pond frog, lives from central Japan to the Seto Inland Sea region.
A medium-sized frog that lives near rice paddies and shallow ponds. Besides the Kanto region, it is also found on the Sendai Plain and in parts of Nagano and Niigata prefectures.
Its hind feet have well-developed webbing, so it can swim fairly fast. It has no sticky toe pads and is not very good at climbing.
Its close relative, the tonosama frog, does not live in the Kanto region, so this frog is sometimes called "tonosama-gaeru" there.
Basic data
- Size
- Body length: males 39–75 mm, females 43–87 mm
- Diet
- Spiders, insects, and other animals
- Range
- Sendai Plain to Kanto, central and southern Niigata, and northern and central Nagano
- 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
- トウキョウダルマガエル
Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.
Sources and how we check
- 上野動物園 — ダルマガエル（トウキョウダルマガエル）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 Pelophylax porosus porosus
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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