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Andrias
''Andrias'' is a genus of giant salamanders. It includes the largest salamanders in the world, with ''A. japonicus'' reaching a length of , and ''A. sligoi'' reaching . While extant species are known only from East Asia, several extinct species in the genus are known from late Oligocene and Neogene aged fossils collected in Europe and North America, indicating that the genus formerly had a much wider range. Taxonomy The generic name derives from Ancient Greek ἀνδριάς, "statue". The former name was ''Megalobatrachus'', from Ancient Greek meaning "giant frog". Phylogeny This phylogeny is based on Chai ''et al'' (2022). and Vasilyan ''et al'' (2013) Alternative phylogeny by Fang ''et al'' (2018). Species Extant species Based on genetic evidence, there may be more extant species in the genus. A study in 2018 found that ''A. davidianus'' ''sensu lato'' was a species complex that consisted of at least five different species. ''A. sligoi'', which was formerly synony ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Giant Salamander
The Chinese giant salamander (''Andrias davidianus'') is one of the largest salamanders and one of the largest amphibians in the world.''Andrias davidianus'' -Amphibiaweb It is fully aquatic, and is Endemism, endemic to rocky mountain streams and lakes in the Yangtze river basin of central China. It has also been introduced species, introduced to Kyoto Prefecture in Japan, and possibly to Taiwan. It is considered critically endangered in the wild due to habitat loss, pollution, and overcollection, as it is considered a Chinese cuisine, delicacy and used in traditional Chinese medicine. On farms in central China, it is extensively farmed and sometimes bred, although many of the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrias Japonicus In KYOTO AQUARIUM13-r
''Andrias'' is a genus of giant salamanders. It includes the largest salamanders in the world, with ''A. japonicus'' reaching a length of , and ''A. sligoi'' reaching . While extant species are known only from East Asia, several extinct species in the genus are known from late Oligocene and Neogene aged fossils collected in Europe and North America, indicating that the genus formerly had a much wider range. Taxonomy The generic name derives from Ancient Greek ἀνδριάς, "statue". The former name was ''Megalobatrachus'', from Ancient Greek meaning "giant frog". Phylogeny This phylogeny is based on Chai ''et al'' (2022). and Vasilyan ''et al'' (2013) Alternative phylogeny by Fang ''et al'' (2018). Species Extant species Based on genetic evidence, there may be more extant species in the genus. A study in 2018 found that ''A. davidianus'' ''sensu lato'' was a species complex In biology, a species complex is a group of closely related organisms that are so simil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Salamander
The Cryptobranchidae (commonly known as giant salamanders) are a family of large salamanders that are fully aquatic. The family includes some of the largest living amphibians. They are native to China, Japan, and the eastern United States. Giant salamanders constitute one of two living families—the other being the Asiatic salamanders belonging to the family Hynobiidae—within the Cryptobranchoidea, one of two main divisions of living salamanders. The largest species are in the genus '' Andrias'', native to east Asia. The South China giant salamander (''Andrias sligoi'') can reach a length of .Andrias davidianus AmphibiaWeb: Information on amphibian biology and conservation. 2012. Berkeley, California: AmphibiaWeb. Retrieved 13 December 2012. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrias Japonicus
The Japanese giant salamander (''Andrias japonicus'') is a species of fully aquatic giant salamander endemic to Japan, occurring across the western portion of the main island of Honshu, with smaller populations present on Shikoku and in northern Kyushu. With a length of up to ,''Andrias japonicus'' - Amphibiaweb it is the third-largest in the world, being surpassed only by the very similar and closely related and the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrias Scheuchzeri
''Andrias scheuchzeri'' is an extinct species of giant salamander belonging to the genus ''Andrias'', which also contains the closely related living Asian giant salamanders. It is known from Oligocene to Pliocene aged deposits primarily from Central Europe, but possibly as far east as Western Siberia and eastern Kazakhstan. History In his book ''Lithographia Helvetica'' from 1726, Johann Jakob Scheuchzer described a Miocene fossil found in Öhningen as ''Homo diluvii testis'' (Latin: ''Man, witness of the Deluge''), believing it to be the remains of a human that drowned in the biblical Deluge. The fossil was about 1 m (3 ft) long, lacked its tail and hind legs, and could thus be interpreted as showing some resemblance to the remains of a violently trampled human child. In 1758, the first to doubt his theory in print was Johannes Gessner, who thought it was a giant catfish (Siluris). In 1787 Petrus Camper thought it was a lizard (Lacerta); at that time, scholars and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrias Jiangxiensis
The Jiangxi giant salamander (''Andrias jiangxiensis'') is a species of very large salamander endemic to Jiangxi Province in China. It is the only Chinese ''Andrias'' species known to have a genetically pure wild population. Discovery and description Prior to 2018, all giant salamanders in China were thought to belong to a single species: the Chinese giant salamander (''A. davidianus''), the largest known amphibian species. However, a major genetic study that year found deep divergences between lineages of the Chinese giant salamander, with many genetically distinct clades restricted to different river basins, and thus proposed it to be a species complex comprising at least 5 different species. In addition, none of these species were known to have native wild populations, with most wild individuals being releases from salamander breeding farms and belonging to multiple different lineages or hybrids between them. One of the lineages identified in the study was named clade U2, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qimen Giant Salamander
The Qimen giant salamander (''Andrias cheni'') is a species of giant salamander in the family Cryptobranchidae The Cryptobranchidae (commonly known as giant salamanders) are a family of large salamanders that are fully aquatic. The family includes some of the largest living amphibians. They are native to China, Japan, and the eastern United States. Giant .... It is endemic to Anhui, Anhui Province, China, where it inhabits streams and caves in the Huangshan, Huangshan Mountains. The species name honors Pihui Chen, a herpetologist at Anhui Normal University. The common name references its type locality in Qimen County. As with all other Chinese species of the genus ''Andrias'', it was formerly lumped into ''Chinese giant salamander, Andrias davidianus'', but its heavy genetic divergence from other members of the genus was known as early as 2001. It was also identified as a distinct lineage in a 2018 study by Yan ''et al''., who identified at least seven highly Endangered specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrias Cheni
The Qimen giant salamander (''Andrias cheni'') is a species of giant salamander in the family Cryptobranchidae. It is endemic to Anhui Province, China, where it inhabits streams and caves in the Huangshan Mountains. The species name honors Pihui Chen, a herpetologist at Anhui Normal University. The common name references its type locality in Qimen County. As with all other Chinese species of the genus ''Andrias'', it was formerly lumped into ''Andrias davidianus'', but its heavy genetic divergence from other members of the genus was known as early as 2001. It was also identified as a distinct lineage in a 2018 study by Yan ''et al''., who identified at least seven highly endangered cryptic lineages, none of which were known to have wild populations and all of which are affected by extensive hybridization in captivity. One such lineage was "Clade E", identified from wild specimens caught before 1995 from the Huangshan Mountains. "Clade E" was confirmed as representing a distinct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrias Sligoi
The South China giant salamander (''Andrias sligoi'') is a species of very large salamander endemic to southern China, mainly in the Pearl River basin south of the Nanling Mountains. It may be the largest species of salamander and the largest amphibian in the world. It is extremely endangered and nearly extinct in the wild. Discovery Described in 1924 as ''Megalobatrachus sligoi'' by Edward George Boulenger from a captive specimen held in the London Zoo, this individual was originally held in the Hong Kong Zoological and Botanical Gardens and may have originated from Guangxi or Guangdong Province. It was likely one of many giant salamanders captured from the mainland and placed in the Botanical Gardens' fountain, all of which had escaped. Some speculate the salamanders were a type of temple offering. During a particularly violent storm in April 1920, a large drain pipe in the Gardens burst, carving a large depression into the land that the escaped salamander was washed into. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
