
Photo: Daiju Azuma · CC BY-SA 2.5
Rana nigromaculata
Habitat
Low-altitude, not found above 2,200m
Range
East Asia including the Korean Peninsula and China
Size
Males about 62mm, females about 74mm snout–vent
The dark-spotted frog, or black-spotted pond frog, is a widespread and common frog. Adult males measure about 62mm and females 74mm in snout–vent length. The back varies from grey to greyish-olive, olive and green, usually with large dark spots, a light mid-dorsal line and two lines on the dorsolateral folds (Wikipedia, general species account).
It is a low-altitude species, not found above 2,200m. Maturation is probably at two years and the total life span may reach 13 years. It has been the most common true frog on the Korean Peninsula and has been hunted for food there for centuries and used as an experimental animal (Wikipedia, general species account).