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The striking bright orange juvenile stage, which is land-dwelling, is known as a red eft. Some sources blend the general name of the species and that of the red-spotted newt subspecies into the eastern red-spotted newt (although there is no "western" one). [5] [6]
The red-bellied newt is brown on the upper body with a red underbelly, has grainy skin, and grows to between 5.5 and 7.5 in (14 and 19 cm). It can be distinguished from other coastal newts, not only by its red belly, but also by the lack of yellow in its eyes. Breeding males develop smooth skin and a flattened tail. [4]
Latin had the name stellio for a type of spotted newt, now used for species of the genus Stellagama. Ancient Greek had the name κορδύλος, presumably for the water newt (immature newt, eft). [7] German has Molch, from Middle High German mol, wikt:olm, like the English term of unknown etymology.
The male red-bellied newt often has a dark, broad coloring across the vent, while females do not. [3] Breeding males develop smooth skin and a flattened tail. The red-bellied newt can be distinguished from other coastal newts by its red belly and a lack of yellow in its eyes.
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 ...
Paddle-tail newts are sometimes confused with the Japanese fire belly newts and sold as such, but are much larger and more aggressive and will eat smaller firebelly newts if given the opportunity. They have a similar relation named the spotted paddle-tail newt .
It can also use amphibians as hosts, such as the larva of the northern two-lined salamander (Eurycea bislineata), and red-spotted newt (Notophthalmus viridescens). [1] It has been noted to parasitize species not native to the ecosystem, as well as an anadromous species. [6]
Neurergus strauchii, the Anatolia newt or Strauch's spotted newt, is one of five species of salamander in the genus Neurergus. It is more specifically a newt, in the family Salamandridae, and is found only in Turkey. Its natural habitats are streams or small rivers, and the nearby forests or shrublands. It is threatened by habitat loss.