The Eastern-Japanese common toad lives only in Japan, across the eastern half of Honshu, and you won't find it wild in the US. It was long treated as the eastern subspecies of the Japanese common toad, but many experts now count it as a species of its own.

Appearance

Appearance
A warty brown toad, about 2½–7 in (6–18 cm) long, that can be yellowish or reddish brown. Its eardrum is large—wider than the gap between the eye and the eardrum.

Where it lives

Typical habitats
  • forests
  • farmland
  • grasslands
  • city parks
Range
Native to the eastern half of Honshu, reaching west to northern Kinki and eastern Shimane. People have introduced it to parts of Hokkaido, Sado Island, and the Izu Islands.
Preferred conditions
Lives from near the coast up into high mountains.

Behavior

Diet
Hunts on the ground, eating ground beetles, ants, earthworms, and spiders.

Life cycle

Breeding season
An explosive breeder: in early spring, many males crowd into shallow ponds and compete for females. Each toad breeds for only about a week.
Nest
Females lay long strings of eggs in still water, tangled around underwater plants.
Clutch size
1,500–14,000 eggs

Cautions

Cautions
Glands behind the eyes and in the skin release a toxin, and even the tadpoles are toxic. Wash your hands after touching one.

Name and classification

About the name
Long known as Bufo japonicus formosus, a subspecies; a 2022 revision raised it to a full species, Bufo formosus.

Conservation

IUCN Red List
LCLeast ConcernLow risk of extinction

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Eastern-Japanese Common Toad (Bufo formosus) — identification, habitat & look-alikes | Moeyo