Rana porosa porosa

Basic information
Scientific name	Rana porosa porosa	Click to magnify
Major synonym	Pelophylax porosus porosus
Common names	Tokyo daruma pond frog
Higher taxon	Ranidae, Anura, Amphibia
Natural range	Kanto District, Sendai Plain, Shinano River basin.
Habitat	Lowland rice field and pond.

Invasion information
Range in Japan	Iwamizawa-cho (Hokkaido).
Origin	Unknown.
Date	The first record in Hokkaido was in 1990, and establishment was confirmed in 1997.
Route	Deliberate: Possibly release of educational material.
Impact	Native organism(s) affected:
Regulation in Japan	No action for prevention, mitigation, control, or eradication.
Introduced range in other countries	None.

Reference	Notes
Maeda & Matsui (1999) Frogs and Toads of Japan. Bun-ichi Sogo Shuppan, Tokyo (in Jpn) Sengoku et al. (eds) (1996) The Encyclopedia of Animals in Japan 5 Amphibians, Reptiles, Chondrichthyes. Heibonsha, Tokyo (in Jpn) Tokuda (2011) Compact Picture Guide to Hokkaido Reptiles & Amphibians. Hokkaidoshinbunsha, Sapporo (in Jpn)