Lithobates clamitans melanota
Green, bronze, brown or even blue, or a combination of colours, but typically is green on the upper lip. The belly is white with darker lines or spots and occasionally has a yellow tinge. The hind legs have dark banding, and there may be irregular spotting on the back.
Amongst the frogbit pads of a large marsh.
Mer Bleue Conservation Area, Ottawa, Ontario, Canada. Ramsar site no. 755.