Schizothorax

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Schizothorax
SchizothoraxPithoragarh.jpg
Schizothorax sp.
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Schizothoracinae
Genus: Schizothorax
Heckel, 1838
Type species
Schizothorax plagiostomus
Heckel, 1838
Synonyms

RacomaMcClelland & Griffith, 1842

Schizothorax is a genus of cyprinid fish found in southern and western China, through northern South Asia (Himalaya) and Central Asia, to Iran, with a single species, S. prophylax, in Turkey. [1] [2] [3] They are primarily found in highland rivers, streams and lakes, although a few species occur in lower-lying locations, like Lake Balkhash and lakes of the Sistan Basin. [1] [2] [4] [5] Their scientific name means "cloven-breast", from Ancient Greek schízeïn (σχίζειν) 'to cleave' and thórax (θώραξ) 'breast-plate' (see also thorax). The western species are typically referred to as marinkas from their Russian name marinka (маринка), while the eastern species are usually called snowtrout. Although they do resemble trouts in habitus this is merely due to convergent evolution and they are by no means closely related apart from both being Teleostei: Cyprinids are in the teleost superorder Ostariophysi, while trouts are in the superorder Protacanthopterygii. Their ancestors must thus have diverged as early as the Triassic, more than 200 million years ago.

Schizothorax is classified within the subfamily Schizotharcinae, the snow barbels, within the family Cyprinidae, the family which includes the carps, barbs and related fishes> [6] This grouping was formerly thought to include the mountain barbels now classified in the subfamily Schizopygopsinae. [2] [3]

Species

Schizothorax intermedius Schizothorax intermedius 45.jpg
Schizothorax intermedius
Schizothorax plagiostomus Schizothorax plagiostomus.jpg
Schizothorax plagiostomus
Schizothorax waltoni Schizothorax waltoni.jpg
Schizothorax waltoni

These are the currently recognized species in this genus: [7]

Related Research Articles

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<i>Cyprinus</i> Genus of fishes

Cyprinus is the genus of typical carps in family Cyprinidae. Most species in the genus are of East Asia origin with only the common carp in Western Asia and Europe; this invasive species has also been introduced to many other regions around the world. Cyprinus are closely related to some more barb-like genera, such as Cyclocheilichthys and Barbonymus (tinfoils). The crucian carps (Carassius) of western Eurasia, which include the goldfish, are apparently not as closely related.

<i>Rhinogobius</i> Genus of fishes

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<i>Acheilognathus</i> Genus of fishes

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Anabarilius is a genus of ray-finned fish in the family Cyprinidae, most of them only occurring in the area of China. Many of the species have very restricted geographic range and have been negatively impacted by introduced species, fishing, and habitat degradation; the IUCN Red List includes five Anabarilius species that are either endangered or critically endangered and one species that is considered extinct.

<i>Garra</i> Genus of fishes

Garra is a genus of fish in the family Cyprinidae. These fish are one example of the "log suckers", sucker-mouthed barbs and other cyprinids commonly kept in aquaria to keep down algae. The doctor fish of Anatolia and the Middle East belongs in this genus. The majority of the more than 160 species of garras are native to Asia, but about one-fifth of the species are from Africa.

<i>Neolissochilus</i> Genus of fishes

Neolissochilus is a genus of fish in the family Cyprinidae native to freshwater habitats in Asia that are often grouped with the mahseers. The largest reach up to 1.2 m (3.9 ft) in length, but most species are much smaller.

<i>Triplophysa</i> Genus of fishes

Triplophysa is a genus of fish in the family Nemacheilidae found mainly in and around the Qinghai-Tibet Plateau in China, as well as inland waters of the larger part of central Asia. They can be distinguished from other genera of Nemacheilidae by marked sexual dimorphism, including the development of nuptial tubercles on breeding males. Currently, the genus is a mixed assemblage of species. Some lineages have been identified and treated as subgenera, but as Wikipedia follows Fishbase for fish species all but Hedinichthys have been treated as subgenera in Wikipedia, although Kottelat in his revision of the loaches did recognise them as valid. FishBase, however, includes these in Triplophysa without specifying subgenera and treats the names given by Kottelat as synonyms.

<i>Silurus</i> Genus of fishes

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Schizothorax grahami, the Kunming snowtrout, is a species of ray-finned fish in the genus Schizothorax. It is endemic to Lake Dianchi, its tributaries and connected springs, in Yunnan Province, China. The species has not been caught in the lake in the past 20 years, but it is present in one tributary drainage basin. The introduction of exotic fish is the main threat to this species.

Schizothorax parvus is a species of ray-finned fish in the genus Schizothorax from Yunnan.

<span class="mw-page-title-main">Common snowtrout</span> Species of fish

The common snowtrout or snowtrout, also known as "Asala", or "Asela" by the locals, is a species belong to the class of ray-finned fishes, family Cyprinidae, order Cypriniformes in the genus Schizothorax. The genus name Schizothorax is derived from Greek word, "schizein" meaning to divide, and "thorax" which means breast.

<i>Schizopygopsis</i> Genus of fishes

Schizopygopsis is a genus of cyprinid fish. Most species are endemic to river basins in the Himalayas and Qinghai–Tibet Plateau of China, but S. stoliczkai extends into the highlands of Afghanistan, Iran, northern India, Kyrgyzstan, Pakistan and Tajikistan.

<i>Microphysogobio</i> Genus of fishes

Microphysogobio is a genus of freshwater fish in the family Cyprinidae native to East Asia.

Ptychobarbus is a genus of cyprinid fish that is found in rivers, streams and lakes in the Himalayas and Tibetan Plateau of China, India, Nepal and Pakistan, extending into the highlands of Afghanistan. They reach up to 2.2 kg (5 lb) in weight and about 65 cm (2.1 ft) in total length. They mostly feed on benthic invertebrates, but will also take planktonic organisms, aquatic plants and algae.

<span class="mw-page-title-main">Nemacheilidae</span> Family of fishes

The Nemacheilidae, or stone loaches, are a family of cypriniform fishes that inhabit stream environments, mostly in Eurasia, with one genus, Afronemacheilus found in Africa. The family includes about 790 species.

<span class="mw-page-title-main">Cyprininae</span> Subfamily of fishes

Cyprinae is a subfamily of largely freshwater ray-finned fishes, one of ten subfamilies belonging to the family Cyprinidae. This family comprises the carps, minnows, barbs and related fishes.

<i>Troglonectes</i> Genus of fishes

Troglonectes is a genus of troglobitic fish in the family Nemacheilidae, native to caves of Asia. Fishbase and other authorities place these species in the genus Oreonectes.

<span class="mw-page-title-main">Schizothoracinae</span>

Schizothoracinae, the snow barbels, is a subfamily of freshwater ray-finned fishes belonging to the family Cyprinidae, which includes the carps, barbs, minnows and related fishes. The fishes in this subfamily are found in Asia.

References

  1. 1 2 Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Schizothorax". FishBase . May 2019 version.
  2. 1 2 3 Yang, J.; J.X. Yang; and X.Y. Chen (2012). "A re-examination of the molecular phylogeny and biogeography of the genus Schizothorax (Teleostei: Cyprinidae) through enhanced sampling, with emphasis on the species in the Yunnan–Guizhou Plateau, China". Journal of Zoological Systematics and Evolutionary Research 50(3). doi : 10.1111/j.1439-0469.2012.00661.x
  3. 1 2 Coad, B.W.; and N.K.d. Ville (2004). "On the systematics and distribution of the snow trout Schizothorax pelzami Kessler, 1870, in Iran (Actinopterygii: Cyprinidae)". Zoology in the Middle East 32(1): 57-62. doi : 10.1080/09397140.2004.10638044
  4. Hammer, U.T. (1986). Saline Lake Ecosystems of the World. p. 458. DR. W. Junk Publishers. ISBN   90-6193-535-0
  5. Coad, B.; and J. Hales (2008). "Helmand - Sistan". Freshwater Ecoregions of the World. Retrieved 18 May 2019.
  6. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Schizothoracinau". Catalog of Fishes . California Academy of Sciences . Retrieved 3 January 2024.
  7. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Schizothorax". Catalog of Fishes . California Academy of Sciences . Retrieved 3 January 2024.