The Imienpo Station frog, Glandirana emeljanovi, is a species of frog

Frog

Frogs are amphibians in the order Anura , formerly referred to as Salientia . Most frogs are characterized by a short body, webbed digits , protruding eyes and the absence of a tail...

 found in Northeast Asia

Northeast Asia

Northeast Asia and Northeastern Asia refers to the northeastern subregion of Asia. Though the precise definition of Northeast Asia changes according to context, it always includes Japan and the Korean Peninsula, and is sometimes used to refer to these two regions exclusively.-Definitions:The...

. It has sometimes been regarded as a subspecies

Subspecies

Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...

 of the Japanese wrinkled frog

Japanese wrinkled frog

The Japanese wrinkled frog, Glandirana rugosa, , is a species of true frog native to Japan and introduced to Hawaii in the late 19th century. It has sometimes been regarded as a single species with the Imienpo Station frog, Glandirana emeljanovi, which is found on the East Asian mainland...

, Glandirana rugosa, with which it shares many characteristics. It is found throughout the Korean Peninsula

Korean Peninsula

The Korean Peninsula is a peninsula in East Asia. It extends southwards for about 684 miles from continental Asia into the Pacific Ocean and is surrounded by the Sea of Japan to the south, and the Yellow Sea to the west, the Korea Strait connecting the first two bodies of water.Until the end of...

 and adjacent northeast China, and is speculated to be or have been present in the Russian Primorye

Primorsky Krai

Primorsky Krai , informally known as Primorye , is a federal subject of Russia . Primorsky means "maritime" in Russian, hence the region is sometimes referred to as Maritime Province or Maritime Territory. Its administrative center is in the city of Vladivostok...

 region as well.

The Imienpo Station frog is found at low elevations, from 100 to 300 meters above sea level. It favors still and slow-moving waters, such as river backwater

Backwater (river)

A backwater is a part of a river in which there is little or no current. It refers either to a branch of a main river which lies alongside it and then rejoins it or to a body of water in a main river which is backed up by an obstruction such as the tide or a dam.-Alternative channel:If a river has...

s and rice paddies. Adult frogs are 4-6 cm in length. They lay eggs

Egg (biology)

An egg is an organic vessel in which an embryo first begins to develop. In most birds, reptiles, insects, molluscs, fish, and monotremes, an egg is the zygote, resulting from fertilization of the ovum, which is expelled from the body and permitted to develop outside the body until the developing...

 in the late spring, from late April to the end of May. The tadpole

Tadpole

A tadpole or polliwog is the wholly aquatic larval stage in the life cycle of an amphibian, particularly that of a frog or toad.- Appellation :...

s overwinter in their immature state, only undergoing metamorphosis the following summer.

Like the Japanese wrinkled frog, the Imienpo Station frog has wrinkled skin with irregular dark blotches. They are poisonous, like toads, and generally sluggish.