''Xenocypris davidi'' () is a

freshwater fish Freshwater fish are those that spend some or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%. These environments differ from marine conditions in many ways, especially the difference in levels of s ...

native to the

Pearl River The Pearl River, also known by its Chinese name Zhujiang or Zhu Jiang in Mandarin pinyin or Chu Kiang and formerly often known as the , is an extensive river system in southern China. The name "Pearl River" is also often used as a catch-a ...

Hainan Island Hainan (, ; ) is the smallest and southernmost province of the People's Republic of China (PRC), consisting of various islands in the South China Sea. , the largest and most populous island in China,The island of Taiwan, which is slightly l ...

, the

Yangtze River The Yangtze or Yangzi ( or ; ) is the longest list of rivers of Asia, river in Asia, the list of rivers by length, third-longest in the world, and the longest in the world to flow entirely within one country. It rises at Jari Hill in th ...

, the

Yellow River The Yellow River or Huang He (Chinese: , Standard Beijing Mandarin, Mandarin: ''Huáng hé'' ) is the second-longest river in China, after the Yangtze River, and the List of rivers by length, sixth-longest river system in the world at th ...

and the southeast coast of China. It is the subject of

artisanal fishing Artisanal fishing (or traditional/subsistence fishing) consists of various small-scale, low-technology, low-capital, fishing practices undertaken by individual fishing households (as opposed to commercial fishing). Many of these households are o ...

, sport fishing, and a nascent aquaculture attempt.

Description

''Xenocypris davidi'' is a small and medium-sized fish that grows in fresh water, living in the middle and lower layers of the water body. It has a slightly flat body, with a small and pointed head. Its mouth is round and protruding, and the lower jaw has a developed horny edge. Its back side is gray, the abdomen white, and there is a pale yellow plaque on the trailing edge of the lid. It mainly feeds on plant debris, humus and algae, of which maximum length is 400 mm, and the average fish reaches about 200 mm in 2 years.Scientific Database - China Animal Subject Database:Xenocypris davidi
zoology.csdb.cn.2018-12-16.

References

Cyprinidae Freshwater fish of China Fish described in 1871 {{Cyprinidae-stub