MARSH FROG

(Rana ridibunda), large aquatic frog (family Ranidae), similar in appearance and habits to the closely related pool frog (R. lessonae) and the edible frog (R. esculenta). In Europe they are all called green frogs. The marsh frog inhabits marshes, river banks, and lake edges in Europe and western Asia. About 9 to 13 cm (3.5 to 5 inches) long, it is brown or green, with or without irregular black spots on the back. During the day the marsh frog often basks in the sun. It emerges onto land but seldom strays far from water.