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Alburnus Hohenackeri
The North Caucasian bleak (''Alburnus hohenackeri'') is a species of ray-finned fish in the genus ''Alburnus ''Alburnus'' is a genus of fish in the family Cyprinidae, the carps and minnows. They are known commonly as bleaks. A group of species in the genus is known as shemayas. The genus occurs in the western Palearctic realm, and the center of diversi ...''. It is found in the western and southwestern Caspian basin in the countries of Armenia, Azerbaijan, Georgia, Iran and the Russian Federation. References hohenackeri Fish described in 1877 Taxa named by Karl Kessler {{Leuciscinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Fedorovich Kessler
Karl Fedorovich Kessler (19 November 1815 – 3 March 1881) was a German-Russian zoologist and author of zoological taxa signed ''Kessler'', who was mostly active in Kyiv, Ukraine. He conducted most of his studies of birds in Ukrainian regions of the Russian Empire: Kiev Governorate, Volyn Governorate, Kherson Governorate, Poltava Governorate and Bessarabia. He also studied the fish of the Dniester, Dnieper, and Southern Bug rivers, and on the Ukrainian coast of the Black Sea. Kessler was one of the first zoologists to propose that mutual aid, rather than mutual struggle, was the main factor in the evolution of a species. The anarchist Peter Kropotkin later developed this theory in his book '' Mutual Aid: A Factor of Evolution''. Tribute The Kessler's gudgeon ''(Romanogobio kesslerii)'' was named after him. See also * :Taxa named by Karl Kessler *Antoine Laurent Apollinaire Fée *Jean-Charles Houzeau Jean-Charles Houzeau de Lehaie (October 7, 1820 – July 12, 1888) wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ray-finned Fish
Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or horny spines (rays), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii (lobe-finned fish). These actinopterygian fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the link or connection between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). By species count, actinopterygians dominate the vertebrates, and they constitute nearly 99% of the over 30,000 species of fish. They are ubiquitous throughout freshwater and marine environments from the deep sea to the highest mountain streams. Extant species can range in size from ''Paedocypris'', at , to the massive ocean sunfish, at , and the long-bodied oarfish, at . The vast majority of Actinoptery ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alburnus
''Alburnus'' is a genus of fish in the family Cyprinidae, the carps and minnows. They are known commonly as bleaks. A group of species in the genus is known as shemayas. The genus occurs in the western Palearctic realm, and the center of diversity is in Turkey. The genus ''Chalcalburnus'' is now part of ''Alburnus''. Species Currently, 45 recognized species are placed in this genus: * ''Alburnus adanensis'' Battalgazi, 1944 (Adana bleak) * †''Alburnus akili'' Battalgil, 1942 (Beyşehir bleak) * ''Alburnus albidus'' O. G. Costa, 1838 (Italian bleak) * '' Alburnus alburnus'' Linnaeus, 1758 (common bleak) * ''Alburnus amirkabiri'' Mousavi-Sabet, Vatandoust, Khataminejad, Eagderi, Abbasi, M. Nasri, Jouladeh & Vasil'eva, 2015 * ''Alburnus arborella'' Bonaparte, 1841 * ''Alburnus atropatenae'' L. S. Berg, 1925 * ''Alburnus attalus'' Özuluğ & Freyhof, 2007 (Bakır shemaya) * '' Alburnus baliki'' Bogutskaya, Küçük & Ünlü, 2000 (Antalya bleak) * '' Alburnu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Described In 1877
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
