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The Caudata are a group of amphibians containing the extant salamanders (the order Urodela) and all extinct species of amphibians more closely related to salamanders than to frogs. They are typically characterized by a superficially lizard -like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body ...
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).
Salamander diversity is highest in eastern North America, especially in the Appalachian Mountains; most species are found in the Holarctic realm, with some species present in the Neotropical realm. Salamanders never have more than four toes on their front legs and five on their rear legs, [ 3 ] but some species have fewer digits and others lack ...
Phylogenetic analyses have however shown that species in the Salamandridae traditionally called newts do form a monophyletic group. [1] [16] [17] Other, more distantly related salamander families also contain fully or in part aquatic species, such as the mole salamanders, the Proteidae, or the Sirenidae.
[1] [2] Of the 26 (IUCN) or 25 (Atlas) species recognized, three are endemic (Karpathos frog, Cretan frog, Karpathos salamander), while three are assessed as endangered (Karpathos frog, Cretan frog, Lycian salamander). [1] [2] Two species for which there is an IUCN Red List assessment are not included in the Atlas (Balkan spadefoot, Pelobates ...
Pseudoeurycea ruficauda, also known as the orange-tailed agile salamander, is a species of salamander in the family Plethodontidae. It is endemic to the Sierra Mazateca , a part of Sierra Madre de Oaxaca of Mexico.
Eurycea longicauda, commonly known as the long-tailed salamander [5] or longtail salamander, [6] is a species of lungless salamander native to the Appalachian Region of the eastern United States. It is a " cave salamander " that frequents twilight zones of caves and also inhabits springs and surrounding forest.
The common mudpuppy (Necturus maculosus) is a species of salamander in the family Proteidae. [3] It lives an entirely aquatic lifestyle in parts of North America in lakes, rivers, and ponds. It goes through paedomorphosis and retains its external gills . [ 4 ]