Labeo

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Labeo
LabeoCalbasuDay.jpg
orangefin labeo (Labeo calbasu)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Labeoninae
Genus: Labeo
Cuvier, 1816
Type species
Cyprinus niloticus
Forsskål, 1775
Species

See text

Synonyms [1]
  • AbrostomusSmith, 1841
  • ChrysophekadionBleeker, 1860
  • MoruliusHamilton, 1822
  • RohitaValenciennes in Cuvier & Valenciennes, 1842
  • RohitichthysBleeker, 1860

Labeo is a genus of carps in the family Cyprinidae. They are found in freshwater habitats in the tropics and subtropics of Africa and Asia.

It contains the typical labeos in the subfamily Labeoninae, which may not be a valid group, however, and is often included in the Cyprininae as tribe Labeonini. If the Labeoninae are accepted as distinct, Labeonini is the name of the tribe in this subfamily to which the labeos belong. If the Labeonini are considered a tribe of the Cyprininae, the labeos are placed in subtribe Labeoina.

The labeos appear fairly similar to the "freshwater sharks" of the genus Epalzeorhynchos , which is also part of the Labeoninae (or Labeonini), but is not very closely related. Labeos are larger, and have a more spindle-shaped body, as they are mostly free-swimming rather than benthic like Epalzeorhynchos. Their mouths look very different, too; they have a pronounced rostral cap, which covers the upper lip except when feeding. The lips are expanded into thick, sausage-shaped pads which have keratinized edges. Thus, their mouth parts are moderately apomorphic; not as little-developed as in barbs or in Epalzeorhynchos, but neither as extensive as in, for example, Garra or Ptychidio . [2] The genus name Labeo is Latin for "one who has large lips". [3]

Labeos have the two barbels on the rostrum which are common among the Cyprinidae, and also another pair of barbels at the rear edges of the lower maxilla, which has been lost in some of their relatives. They have a well-developed vomeropalatine organ. In the Weberian apparatus, the posterior supraneural bone is elongated and contacts the skull at the forward end. [2]

Species

There are the currently recognized species in this genus: [4]

Related Research Articles

<span class="mw-page-title-main">Cyprinidae</span> Family of freshwater fish

Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others. Cyprinidae is the largest and most diverse fish family, and the largest vertebrate animal family overall, with about 3,000 species; only 1,270 of these remain extant, divided into about 200 valid genera. Cyprinids range from about 12 mm (0.5 in) in size to the 3 m (9.8 ft) giant barb. By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word kyprînos.

<span class="mw-page-title-main">Mahseer</span> Common name for several genera of carp

Mahseer is the common name used for the genera Tor, Neolissochilus, Naziritor and Parator in the family Cyprinidae (carps). The name is, however, more often restricted to members of the genus Tor. The range of these fish is from Vietnam in the east and China in the north, through Laos, Cambodia, Thailand, Malaysia, Brunei and Indonesia, and across southern Asia including the countries of India, Nepal, Bhutan and Bangladesh within the Indian Peninsula, plus Sri Lanka, Pakistan and Afghanistan. They are commercially important game fish, as well as highly esteemed food fish. Mahseer fetch high market price, and are potential candidate species for aquaculture. Several of the larger species have suffered severe declines, and are now considered threatened due to pollution, habitat loss, overfishing and increasing concern about the impacts of unregulated release of artificially bred stock of a very limited number of species.

<i>Barbus</i> Genus of fishes

Barbus is a genus of ray-finned fish in the family Cyprinidae. The type species of Barbus is the common barbel, first described as Cyprinus barbus and now named Barbus barbus. Barbus is the namesake genus of the subfamily Barbinae, but given their relationships, that taxon is better included in the Cyprininae at least for the largest part.

<i>Puntius</i> Genus of fishes

Puntius is a genus of small freshwater fish in the family Cyprinidae native to South Asia and Mainland Southeast Asia, as well as Taiwan.

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

Catla, also known as the major South Asian carp, is an economically important South Asian freshwater fish in the carp family Cyprinidae. It is native to rivers and lakes in northern India, Bangladesh, Myanmar, Nepal, and Pakistan, but has also been introduced elsewhere in South Asia and is commonly farmed.

Tariqilabeo is a genus of fish in the family Cyprinidae native to Asia.

<i>Schizothorax</i> Genus of fishes

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. 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. Their scientific name means "cloven-breast", from Ancient Greek schízeïn (σχίζειν) 'to cleave' and thórax (θώραξ) 'breast-plate'. 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.

<i>Osteobrama</i> Genus of fishes

Osteobrama is a genus of cyprinid fish found in southern Asia consisting of eight species. The name is derived from the Greek word osteon, meaning "bone", and the Old French word breme, a type of freshwater fish.

<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.

Tylognathus is an invalid genus of ray-finned fishes in the family Cyprinidae. It was established by Heckel in 1843 without a type species. Varicorhinus diplostomus, described by Heckel in 1838 and erroneously redescribed by the same author in 1844 as T. valenciennesii, was later designated the type species. Today this fish is placed in the genus Bangana.

<i>Varicorhinus</i> Genus of fishes

Varicorhinus is an invalid genus of ray-finned fishes in the family Cyprinidae. It was established by Eduard Rüppell in 1835 with V. beso as the type species. The prime distinguishing feature was designated as the shape of the mouth, and other species with a similar shape were soon added. However, this diagnostic did not prove to be monophyletic. In 2010, a synonymity of Varicorhinus and Labeobarbus was proposed based on mitochondrial cytochrome b gene. The synonymity was accepted by other researchers. The group of former Varicorhinus species inside Labeobarbus are called chiselmouths, while the remainder of Labeobarbus species are called rubberlips.

<i>Brycinus</i> Genus of fishes

Brycinus is a genus of ray-finned fish in the family Alestiidae. Like other "African characids", they were formerly included in the Characidae but are actually somewhat more distantly related Characiformes.

<i>Distichodus</i> Genus of fishes

Distichodus is a genus of freshwater fish in the family Distichodontidae found in Africa.

<i>Epalzeorhynchos</i> Genus of fishes

Epalzeorhynchos is a small ray-finned fish genus of the family Cyprinidae. Its members are – like some other cyprinids – known as "freshwater sharks" or simply "sharks". They are, however, freshwater members of the Osteichthyes lineage which is distinct from the Chondrichthyes lineage of sharks. The description of these animals as "shark" is most likely a reference to the shark-like shape of these popular cyprinids.

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

Labeoninae is a doubtfully distinct subfamily of ray-finned fishes in the family Cyprinidae of order Cypriniformes. They inhabit fresh water and the largest species richness is in the region around southern China, but there are also species elsewhere in Asia, and some members of Garra and Labeo are from Africa. They are a generally very apomorphic group, perhaps the most "advanced" of the Cyprinidae. A common name for these fishes is labeonins or labeoins.

<i>Labeobarbus</i> Genus of fishes

Labeobarbus is a mid-sized ray-finned fish genus in the family Cyprinidae. Its species are widely distributed throughout eastern Africa and especially southern Africa, but also in Lake Tana in Ethiopia. A common name, in particular for the southern species, is yellowfish. The scientific name refers to the fact that these large barbs recall the fairly closely related "carps" in the genus Labeo in size and shape. As far as can be told, all Labeobarbus species are hexaploid. One species, L. microbarbis from Rwanda, is known to have gone extinct in recent times.

Luciobarbus is a genus of ray-finned fishes in the family Cyprinidae. Its members are found in fresh and brackish waters of southern Europe, northern Africa, the wider Near East, the Aral and Caspian Seas, and rivers associated with these. Several species in the genus are threatened. Most species are fairly small to medium-sized cyprinids, but the genus also includes several members that can surpass 1 m (3.3 ft) in length and the largest, the mangar can reach 2.3 m (7.5 ft).

<i>Enteromius</i> Genus of cyprinid fishes

Enteromius is a genus of small to medium-sized cyprinid fish native to tropical Africa. Most species were placed in the genus Barbus.

References

  1. Bailly, Nicolas (2014). "Labeo Cuvier, 1816". WoRMS. World Register of Marine Species . Retrieved 24 September 2023.
  2. 1 2 Stiassny, M. L. and A. Getahun. (2007). An overview of labeonin relationships and the phylogenetic placement of the Afro-Asian genus Garra Hamilton, 1922 (Teleostei: Cyprinidae), with the description of five new species of Garra from Ethiopia, and a key to all African species. Zoological Journal of the Linnean Society 150(1), 41–83.
  3. Christopher Scharpf & Kenneth J. Lazara (7 September 2023). "Family CYPRINIDAE: Subfamily LABEONINAE Bleeker 1859 (Labeos)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 24 September 2023.
  4. Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Labeo". FishBase . July 2024 version.