Pseudogyrinocheilus prochilus

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Pseudogyrinocheilus prochilus
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Labeoninae
Genus: Pseudogyrinocheilus 
P. W. Fang, 1933
Species:P. prochilus
Binomial name
Pseudogyrinocheilus prochilus
(Sauvage & Dabry de Thiersant, 1874)
Synonyms
  • Discognathus prochilusSauvage & Dabry de Thiersant, 1874
  • Semilabeo prochilus(Sauvage & Dabry de Thiersant, 1874)
  • Gyrinocheilus rouleiTchang, 1929
  • Gyrinocheilus pellegriniTchang, 1929

Pseudogyrinocheilus prochilus is a species of fish in the family Cyprinidae, found in Yangtze River and its tributaries in China. This species is the only member of its genus. [2]

In biology, a species ( ) is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. While these definitions may seem adequate, when looked at more closely they represent problematic species concepts. For example, the boundaries between closely related species become unclear with hybridisation, in a species complex of hundreds of similar microspecies, and in a ring species. Also, among organisms that reproduce only asexually, the concept of a reproductive species breaks down, and each clone is potentially a microspecies.

Fish vertebrate animal that lives in water and (typically) has gills

Fish are gill-bearing aquatic craniate animals that lack limbs with digits. They form a sister group to the tunicates, together forming the olfactores. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Tetrapods emerged within lobe-finned fishes, so cladistically they are fish as well. However, traditionally fish are rendered paraphyletic by excluding the tetrapods. Because in this manner the term "fish" is defined negatively as a paraphyletic group, it is not considered a formal taxonomic grouping in systematic biology, unless it is used in the cladistic sense, including tetrapods. The traditional term pisces is considered a typological, but not a phylogenetic classification.

Family is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy; it is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as being the "walnut family".

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References

  1. ↑ Chen, X.-Y. (2011). "Pseudogyrinocheilus prochilus". The IUCN Red List of Threatened Species. 2011: e.T166141A6182474. doi:10.2305/IUCN.UK.2011-2.RLTS.T166141A6182474.en.
  2. ↑ Zheng, L.-P., Chen, X.-Y. & Yang, J.-X. (2016): Molecular systematics of the Labeonini inhabiting the karst regions in southwest China (Teleostei, Cypriniformes). ZooKeys, 612: 133–148.


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