Leucos

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Leucos
Rutilus aula.jpg
Leucos aula
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Leuciscinae
Genus: Leucos
Heckel, 1843
Type species
Squalius aula
Bonaparte, 1841

Leucos is a genus of fishes in the family Cyprinidae, from Southern Europe. They are carp close to the genus Rutilus , and were only recently taxonomically distinguished from that genus. [1]

Molecular data suggest that Leucos diverged from Rutilus more than five million years ago, probably during the Messinian salinity crisis. The species of Leucos are typically of small size and they all live in still waters. They differ from Rutilus by the lack of spinous tubercles on scales and head in reproductive males, and also in the pharyngeal teeth formula. [1] The sister group to Leucos is the monotypic Sarmarutilus . [1]

Species

There are currently five recognized species in the genus: [2]

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.

Roach may refer to:

<i>Rutilus</i> Genus of fishes

Rutilus is a genus of fish in the family Cyprinidae found in Eurasia. This genus is a widely distributed lineage of cyprinids and ranges from West Europe to East Siberia.

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

The roach, or rutilus roach, also known as the common roach, is a fresh- and brackish-water fish of the family Cyprinidae, native to most of Europe and western Asia. Fish called roach can be any species of the genera Rutilus, Leucos and Hesperoleucus, depending on locality. The plural of the term is also roach.

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

The common bream, also known as the freshwater bream, bream, bronze bream, carp bream or sweaty bream, is a European species of freshwater fish in the family Cyprinidae. It is now considered to be the only species in the genus Abramis.

<i>Rutilus frisii</i> Species of fish

Rutilus frisii, called the vyrezub, Black Sea roach, or kutum, is a species of fish in the family Cyprinidae, native to the basins of the Black Sea, Sea of Azov, and Sea of Marmara from the rivers of Bulgaria to western Transcaucasia and in Lake Iznik (Turkey).

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

Rutilus meidingeri is a species of freshwater fish in the family Cyprinidae. It is only found in three subalpine lakes in Austria and probably in few lakes of Slovakia. Since the 1980s, it has been extirpated from the German Lake Chiemsee and Austrian Traunsee.

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

The pigo is a species of freshwater fish in the roach genus Rutilus of the family Cyprinidae. The fish is native to northern Italy and Switzerland. It inhabits subalpine lakes of the northern Adriatic basin from the Livenza to the Po drainage, including Lakes Maggiore, Lugano, and Como.

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

Leuciscinae is a subfamily of the freshwater fish family Cyprinidae, which contains the true minnows.

<i>Rutilus heckelii</i> Species of fish

Rutilus heckelii is a species of roach, a genus in the family Cyprinidae. This species occurs in freshened areas of Black and Azov Seas, entering the Don, Kuban, Dniepr, Dniestr and rarely Danube drainages.

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

The cactus roach is a species of fish in the family Cyprinidae, native to the basin of the Danube River upstream of the Iron Gate, very numerous in the Sava basin. It is also recorded in the Ukrainian Zakarpattian region. This freshwater fish is up to 55 cm long.

<span class="mw-page-title-main">Ligula intestinalis</span> Species of flatworm

Ligula intestinalis is a tapeworm of fish, fish-eating birds and copepods, with species from each group featuring in its complex life cycle. Ligula intestinalis is a parasite that changes its intermediate host's behavior to become more vulnerable to its predators. In this case, Ligula intestinalis uses copepods and cyprinid fish as their intermediate host and develops inside of them to get to its final destination which is fish-eating birds. Plerocercoids, Ligula intestinalis larva, influence secondary intermediate hosts’ behavior, health, and fecundity. Additionally, Ligula intestinalis can cause fish-eating birds' gonads to remain undeveloped.

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

The Caspian roach is a species of roach fish living in the Caspian Sea. The Caspian roach can be distinguished from other roaches by its laterally compressed body, silvery grey iris, rounded snout and grey pectoral pelvic and anal fins with dark margins. The Caspian roach is semi-anadromous and inhabits mostly shallow coastal waters. It enters Volga, Ural, Emba, Terek and Kura drainages for spawning.

<i>Sarmarutilus rubilio</i> Species of fish

Sarmarutilus rubilio, known as the rovella or the South European roach, is a species of freshwater fish in the family Cyprinidae. It is native in the Tuscano-Latium district of Italy, both in waters draining to the Adriatic and Tyrrhenian Seas, and introduced further south in the country. Its natural habitats are rivers and freshwater lakes. It is threatened by introduced species and habitat loss.

<i>Leucos aula</i> Species of fish

Leucos aula is a species of freshwater fish in the family Cyprinidae. It is native to the Adriatic basin in southern Europe, originally occurring in Italy, Slovenia, Croatia, and Switzerland. It has been introduced to other parts of Italy. This is an abundant fish, occurring in canals, swamps, lakes, and streams with slow current and dense vegetation.

<i>Leucos basak</i> Species of fish

Leucos basak, the Albanian roach, Dalmatian roach or Croatian roach, is a species of freshwater fish in the family Cyprinidae. It is found in Albania, Bosnia and Herzegovina, Croatia, and Serbia and Montenegro.

Leucos ylikiensis is a species of freshwater fish in the family Cyprinidae. It is found only in Greece, in the Kifissos drainage and Lake Yliki. The other known population, in Lake Paralimni, was extirpated when the lake was drained. L. ylikiensis was described as a distinct species in 1991. It is threatened by habitat loss.

Leucos panosi, also known as the Acheloos roach, is a species of freshwater fish in the family Cyprinidae. Acheloos and Louros river systems in Greece, and lakes Trichonis and Ambrakia.

<span class="mw-page-title-main">Nuptial tubercles</span> Sexual ornaments of fish

Nuptial tubercles are dermal structures present in 15 families of fish belonging to 4 orders of Actinopterygii – Salmoniformes, Gonorhynchiformes, Cypriniformes and Perciformes – used in the courtship and reproduction process. They consist of partially or fully keratinised cells that form a perceptible protrusion in certain regions, used to stimulate females during courtship. Their development is stimulated by hormones secreted by the pituitary and adrenal glands, and is induced shortly before the breeding season and discarded after. In some species, at least, there is a correlation between the level of androgens present in the endocrine system and the volume and complexity of tubercle growth.

Rutilus stoumboudae is a species of freshwater fish in the family Cyprinidae. It is found only in Greece, in Lake Volvi and is a lacustrine species adapted to still water. It is named for Maria Stoumboudi, in honour of her research on the ecology and conservation of the freshwater fishes of Greece.

References

  1. 1 2 3 Bianco, P.G., Ketmaier, V. (2014). A revision of the Rutilus complex from Mediterranean Europe with description of a new genus, Sarmarutilus, and a new species, Rutilus stoumboudae (Teleostei: Cyprinidae). Zootaxa, 3841 (3): 379–402.
  2. Froese, Rainer and Pauly, Daniel, eds. (2016). Species of Leucos in FishBase . April 2016 version.