Grenouille rieuse (F); Grote groene Kikker (NL); Sjögroda (S);
Latterfrø (DK); Skokan skrehotavý (CZ)
Great plains and river systems of Eastern Europe; introduced in many
parts of Western Europe.
Pupil: , horizontal oval to almost round.
Back olive-green, dark green to brownish, often with bright vertebral
stripe. Dark to black pattern of spots. Belly marbled. Small metatarsal
tubercle, the first toe at least 2,3 times as long as tubercle (photo).
by the dark grey to black nuptial pads on the thumbs.
May/June. The noisy, bold call is typical to the Lake frog. The
laterally bulged vocal sacs are smoky grey to dark metallic.
Marsh frog Pelophylax (Rana) ridibunda
Of all True frogs only the Green frogs live
in or near the water all summer and into autumn, fleeing into the water
and, under suitable weather conditions, calling day and night.