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Many salamanders do not use vocalisations, [70] and in most species the sexes look alike, so they use olfactory and tactile cues to identify potential mates, and sexual selection occurs. Pheromones play an important part in the process and may be produced by the abdominal gland in males and by the cloacal glands and skin in both sexes.
Plethodontidae, or lungless salamanders, are a family of salamanders. [ 1 ] [ 2 ] With over 500 species, lungless salamanders are by far the largest family of salamanders in terms of their diversity. Most species are native to the Western Hemisphere , from British Columbia to Brazil.
The black mountain salamander is one of a number of similar looking species of dusky salamanders inhabiting the upland locations in which it is found. It has a robust body about 12 cm (5 in) long with short, stout limbs. The colour is variable but the upper parts are usually pale or medium brown with an indistinct pattern of paler markings.
The red-backed salamander (Plethodon cinereus) is a small, hardy woodland salamander species in the family Plethodontidae. It is also known as the redback salamander , [ 3 ] eastern red-backed salamander , [ 3 ] or the northern red-backed salamander to distinguish it from the southern red-backed salamander ( Plethodon serratus ).
The long-toed salamander (Ambystoma macrodactylum, Baird 1849) [4] is a mole salamander in the family Ambystomatidae.This species, typically 4.1–8.9 cm (1 3/5–3½ in) long when mature, is characterized by its mottled black, brown and yellow pigmentation, and its long outer fourth toe on the hind limbs.
The mole salamanders (genus Ambystoma) are a group of advanced salamanders endemic to North America. The group has become famous due to the study of the axolotl (A. mexicanum) in research on paedomorphosis, and the tiger salamander (A. tigrinum, A. mavortium) which is often sold as a pet, and is the official amphibian of four US states.
This species of torrent salamander is found the farthest south in the Pacific Northwest region. It is a small salamander endemic to the region from Northern California to Northern Oregon. It is one of four species of Rhyacotriton, along with R. cascadae, R. kezeri and R. olympicus. All species of Rhyacotriton are small, with their body lengths ...
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.