Huanren frog
Encyclopedia
The Huanren frog, Rana huanrenensis, is a species of true frog
found in East Asia
. It was originally believed to be endemic to Huanren
in China, but was later also found in South Korea
; it is presumed to be present in North Korea
as well. It is closely related to the Dybowski's frog
, Rana dybowskii, and specimens collected before 1991 were incorrectly identified as that species. Distinguishing factors include the absence of a vocal sac
.
The Huanren frog is found in and around rivers and streams in hilly terrain. The type locality in Huanren is 520 meters above sea level, and specimens from Korea have also only been found at altitudes over 500 m. Specimens from South Korea have been collected in the provinces of Gangwon-do
, Gyeongsangbuk-do
, and eastern Gyeonggi-do
. Egg clutches, which are small and clustered, are deposited on submerged rocks in the streams which this species favors.
True frog
The true frogs, family Ranidae, have the widest distribution of any frog family. They are abundant throughout most of the world, occurring on most continents except Antarctica...
found in East Asia
East Asia
East Asia or Eastern Asia is a subregion of Asia that can be defined in either geographical or cultural terms...
. It was originally believed to be endemic to Huanren
Huanren
Huanren may refer to:*Huanren Manchu Autonomous County, in Liaoning, China*Huanren , county seat of Huanren Manchu Autonomous County*Huanren frog, species of true frog found in East Asia...
in China, but was later also found in South Korea
South Korea
The Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...
; it is presumed to be present in North Korea
North Korea
The Democratic People’s Republic of Korea , , is a country in East Asia, occupying the northern half of the Korean Peninsula. Its capital and largest city is Pyongyang. The Korean Demilitarized Zone serves as the buffer zone between North Korea and South Korea...
as well. It is closely related to the Dybowski's frog
Dybowski's frog
The Dybowski's frog, Rana dybowskii, is a species of true frog found in Northeast Asia. It is found in the Russian Far East, the Korean Peninsula, and the Japanese island of Tsushima...
, Rana dybowskii, and specimens collected before 1991 were incorrectly identified as that species. Distinguishing factors include the absence of a vocal sac
Vocal sac
The vocal sac is the flexible membrane of skin possessed by most male frogs. The purpose of the vocal sac is usually as an amplification of their mating or advertisement call...
.
The Huanren frog is found in and around rivers and streams in hilly terrain. The type locality in Huanren is 520 meters above sea level, and specimens from Korea have also only been found at altitudes over 500 m. Specimens from South Korea have been collected in the provinces of Gangwon-do
Gangwon-do (South Korea)
Gangwon-do is a province of South Korea, with its capital at Chuncheon. Before the division of Korea in 1945, Gangwon and its North Korean neighbour Kangwŏn formed a single province.-History:...
, Gyeongsangbuk-do
Gyeongsangbuk-do
Gyeongsangbuk-do or shortly Gyeongbuk is a province in eastern South Korea. The province was formed in 1896 from the northern half of the former Gyeongsang province, remained a province of Korea until the country's division in 1945, then became part of South Korea.The Gyeongsangbuk-do Office is...
, and eastern Gyeonggi-do
Gyeonggi-do
Gyeonggi-do is the most populous province in South Korea. The provincial capital is located at Suwon. Seoul—South Korea's largest city and national capital—is located in the heart of the province, but has been separately administered as a provincial-level special city since 1946...
. Egg clutches, which are small and clustered, are deposited on submerged rocks in the streams which this species favors.