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Salamandridae is a family of salamanders consisting of true salamanders and newts. Salamandrids are distinguished from other salamanders by the lack of rib or costal grooves along the sides of their bodies and by their rough skin. Their skin is very granular because of the number of poison glands. They also lack nasolabial grooves.
A rough-skinned newt underwater A rough-skinned newt at Brice Creek in Oregon. Throughout much of the newt's range, the common garter snake (Thamnophis sirtalis) has been observed to exhibit resistance to the tetrodotoxin produced in the newt's skin. While in principle the toxin binds to a tube-shaped protein that acts as a sodium channel in ...
Amphiumidae are a family of salamanders. Members of the family are known as amphiumas. [101] These large salamanders are often mistaken for eels, hence the colloquial name "conger eels". [102] [103] Completely aquatic, these long salamanders can survive droughts by forming a mucous cocoon underground. They can live without food for up to three ...
This newt can reach a length of 20 cm (7.9 in). The tongue is small and is free on the sides and only slightly towards its base. The teeth on the palate are in two oblique rows that meet at the front of the mouth. The skull has a thick, bony fronto-squamosal arch, a feature of all salamanders. [2]
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.
The range of Tylototriton anguliceps. The angular-headed newt can be found inhabiting three different countries: Vietnam, Laos, and Thailand. [2] It was initially discovered in Mường Nhé District and Thuận Châu District in Vietnam and Doi Lahnga, a mountain in the Chiang Mai Province in Thailand, in 2015. [3]
Lissotriton is a genus of newts native to Europe and parts of Asia Minor.As most other newts, they are aquatic as larvae and during breeding time but live in terrestrial, humid environments over the rest of the season.
Desmognathus fuscus is a species of amphibian in the family Plethodontidae (lungless salamanders). [2] [3] The species is commonly called the dusky salamander or northern dusky salamander to distinguish it from populations in the southern United States which form several distinct species, the southern dusky salamanders (D. auriculatus, D. valentinei). [3]