Sinocyclocheilus guanyangensis

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Sinocyclocheilus guanyangensis
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Barbinae
Genus: Sinocyclocheilus
Species:
S. guanyangensis
Binomial name
Sinocyclocheilus guanyangensis
Y. Q. Chen, C. L. Peng & E. Zhang, 2016

Sinocyclocheilus guanyangensis is a species of freshwater ray-finned fish from the family Cyprinidae. It is endemic to the Li-Jiang Basin in Guanyang County in Guanxi. It has vestigial eyes, a conical snout and lacks a hump at the back of the head. [1]

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The Cyprinidae are the family of freshwater fish, collectively called cyprinids, that includes the carps, the true minnows, and their relatives. Also commonly called the "carp family", or "minnow family", Cyprinidae is the largest and most diverse fish family and the largest vertebrate animal family in general, with about 3,000 species of which only 1,270 remain extant, divided into about 370 genera. They range from about 12 mm to the 3-m Catlocarpio siamensis. The family belongs to the ostariophysian order Cypriniformes, of whose genera and species the cyprinids make up more than two-thirds. The family name is derived from the Ancient Greek kyprînos.

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Sinocyclocheilus is a genus of freshwater fish in the family Cyprinidae endemic to China, where only found in Guangxi, Guizhou and Yunnan. Almost all of its species live in or around caves and most of these have adaptions typical of cavefish such as a lack of scales, lack of pigmentation and reduced eyes. Several species have an unusual hunchbacked appearance and some of the cave-dwellers have a "horn" on the back, the function of which is unclear. In contrast, the Sinocyclocheilus species that live aboveground, as well as a few found underground, show no clear cavefish adaptions. They are relatively small fish reaching up to 23 cm (9.1 in) in length. The individual species have small ranges and populations, leading to the status of most of the evaluated species as threatened. Many species populations in the genus have yet to be evaluated by the IUCN.

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Yang Jun-Xing is a Chinese herpetologist and ichthyologist with the Kunming Institute of Zoology. As of 2018, Yang authored 9 species of fish and amphibians.

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References

  1. Chen, Y.-Q., Peng, C.-L. & Zhang, E (2016): Sinocyclocheilus guanyangensis, a new species of cavefish from the Li-Jiang basin of Guangxi, China (Teleostei: Cyprinidae). Ichthyological Exploration of Freshwaters, 27 (1): 1-8.