About Rana pirica Matsui, 1991
Rana pirica, commonly known as the Hokkaidō frog or the Ezo brown frog, is a species belonging to the family Ranidae. It is found in Hokkaidō, Japan, and Sakhalin, Russia. Its natural habitats include boreal forests, temperate forests, temperate shrubland, temperate grassland, rivers, swamps, intermittent freshwater lakes, freshwater marshes, intermittent freshwater marshes, arable land, ponds, and irrigated land.