The Imienpo Station frog (''Glandirana emeljanovi'') is a species of

frog A frog is any member of a diverse and largely Carnivore, carnivorous group of short-bodied, tailless amphibians composing the order (biology), order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-f ...

found in

Northeast Asia Northeast Asia or Northeastern Asia is a geographical subregion of Asia; its northeastern landmass and islands are bounded by the Pacific Ocean. The term Northeast Asia was popularized during the 1930s by American historian and political scienti ...

. It has sometimes been regarded as a

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

of the

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 The Imienpo Statio ...

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

Korean Peninsula Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic o ...

and adjacent northeast China. It is speculated to be or have been present in the Russian

Primorye Primorsky Krai (russian: Приморский край, r=Primorsky kray, p=prʲɪˈmorskʲɪj kraj), informally known as Primorye (, ), is a federal subject (a krai) of Russia, located in the Far East region of the country and is a part of t ...

region as well, but attempts to find it there have been unsuccessful. 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 backwaters and

rice paddies A paddy field is a flooded field of arable land used for growing semiaquatic crops, most notably rice and taro. It originates from the Neolithic rice-farming cultures of the Yangtze River basin in southern China, associated with pre-Aust ...

. Adult frogs are 4–6 cm in length. They lay

eggs Humans and human ancestors have scavenged and eaten animal eggs for millions of years. Humans in Southeast Asia had domesticated chickens and harvested their eggs for food by 1,500 BCE. The most widely consumed eggs are those of fowl, especial ...

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

tadpole A tadpole is the larval stage in the biological life cycle of an amphibian. Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial. Tadpoles have some fish-like features that may not be found i ...

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

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

References

* * {{Taxonbar, from=Q3024363 Glandirana Amphibians of China Amphibians of Korea Amphibians described in 1913 Taxa named by Alexander Nikolsky