This small, slender frog can be pink, gray, tan or light brown and has a dark X on its back. This mark can be faint in light-colored frogs and dark on darker ones. A dark line runs across the top of the head between the eyes, and there are dark bars on the legs. The belly is a plain cream color. The finger- and toetips have adhesive pads. The high-pitched, peeping call, repeated about once a second, can be heard on warm spring nights and also during the day in early summer and fall.