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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 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] |
Ulanurus
The Cryptobranchidae (commonly known as giant salamanders) are a family (taxonomy), family of large salamanders that are aquatic animal, 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. Retrieve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviturus
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] |
Zaissanurus
The Cryptobranchidae (commonly known as giant salamanders) are a family (taxonomy), family of large salamanders that are aquatic animal, 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. Retrieve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptobranchoidea
The Cryptobranchoidea are a suborder of salamanders found in Asia, European Russia, and the United States. They are known as primitive salamanders, in contrast to Salamandroidea, the advanced salamanders. It has two living subdivisions, Cryptobranchidae ( Asian giant salamanders and hellbenders), and Hynobiidae, commonly known as Asian salamanders. Giant salamanders are obligate paedomorphs with partial metamorphosis, but Asiatic salamander goes through a full metamorphosis. The only known exceptions are the Longdong stream salamander, which has been documented as facultatively neotenic, and the Ezo salamander, where a now assumed extinct population from Lake Kuttarush in Hokkaido had neotenic traits like gills in adults. The oldest members of the group are known from the Middle Jurassic (Bathonian) aged Yanliao Biota of China. Taxonomy This suborder contains only two families at present. All other members are extinct and are only known as fossils. *'' Chunerpeton'' Haifa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians
Amphibians are ectothermic, anamniote, anamniotic, tetrapod, four-limbed vertebrate animals that constitute the class (biology), class Amphibia. In its broadest sense, it is a paraphyletic group encompassing all Tetrapod, tetrapods, but excluding the amniotes (tetrapods with an amniotic membrane, such as modern reptiles, birds and mammals). All extant taxon, extant (living) amphibians belong to the monophyletic subclass (biology), subclass Lissamphibia, with three living order (biology), orders: Anura (frogs and toads), Urodela (salamanders), and Gymnophiona (caecilians). Evolved to be mostly semiaquatic, amphibians have adapted to inhabit a wide variety of habitats, with most species living in freshwater ecosystem, freshwater, wetland or terrestrial ecosystems (such as riparian woodland, fossorial and even arboreal habitats). Their biological life cycle, life cycle typically starts out as aquatic animal, aquatic larvae with gills known as tadpoles, but some species have devel ... [...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] |
Cryptobranchus Saskatchewanensis
The hellbender (''Cryptobranchus alleganiensis''), also known as the hellbender salamander, is a species of aquatic giant salamander endemic to the eastern and central United States. It is the largest salamander in North America. A member of the family Cryptobranchidae, the hellbender is the only extant member of the genus ''Cryptobranchus''. Other closely related salamanders in the same family are in the genus ''Andrias'', which contains the Japanese and Chinese giant salamanders. The hellbender is much larger than any other salamander in its geographic range, and employs an unusual adaption for respiration through cutaneous gas exchange via capillaries found in its lateral skin folds. It fills a particular niche—both as a predator and prey—in its ecosystem, which either it or its ancestors have occupied for around 65 million years. The species is listed as Vulnerable on the IUCN Red List of Threatened Species due to the impacts of disease and widespread habitat loss a ... [...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] |
