The snow clam is a northeastern forest frog.

Amphibian, anuran, frog family, frog genus, China is distributed in Heilongjiang, Jilin, Liaoning, Inner Mongolia (northeast). It is distributed abroad in Russia (Far East), Mongolia (east), North Korea and Japan (Tsushima Island).

It grows in the natural environment is in the northeast of the wind and snow temperatures, forest frogs have the habit of hibernation, in the time period is also up to five months. That's why they are called "snow clams". The back of the snow clam is gray-brown, dark brown, reddish brown and gray-brown, and there are many spots on it. The breeding period of the snow clam usually starts in early April and ends in early May every year.

The northeastern forest frog generally lives in the hills near the seashore to about 900m above sea level in mountainous areas with good vegetation in a moist environment, in forests, thickets, meadows, as well as lakes, ponds, swamps and farmland and many other kinds of still waters and its vicinity are traces of it.

Morphological Characteristics

The morphology is based on specimens from Heilongjiang Heihe and Shangzhi Yifanpo (50 males, 16 females, 5 juveniles, and eggs), and from Jilin Changchun, Jiaohu, Hunchun, Baihe, Tonghua, and Ji'an (97 males, 55 females, and tadpoles).

Adults: male frogs 63 mm long, females about 67 mm long, other parts of the measurement data are shown in Table 322. body stout; head width slightly larger than head length; muzzle end bluntly rounded and broadly flattened, protruding from the lower lip; muzzle ribs obtuse and pronounced, cheeks tilted outward, buccal surfaces slightly concave.

The nostrils are situated from the muzzle to the center of the anterior angle of the eyes; the nasal spacing is greater than the eye spacing and slightly less than the width of the upper eyelid; the pupil is oval; the tympanic membrane is rounded, with a diameter slightly greater than half of the diameter of the eye; the nasal bone is toothed in two small clusters, slightly oval, and slanting posteriorly from the anterior edge of the medial side of the inner nostril or from the center.