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.

Lungless salamander, (family Plethodontidae), any of more than 370 species of lungless amphibians dependent largely on cutaneous respiration (gas exchange through moistened skin). Plethodontidae is the largest group of salamanders, and its members occur predominantly in the Americas from southern

Representing more than half of all known salamander species, with new species being discovered yearly, the lungless salamanders are found throughout the northeastern U.S., and on the west coast of North America.

The family of lungless salamanders includes the smallest and nearly the largest land-dwelling salamanders. These salamanders have no lungs and breathe through their skin. They have four toes on their front legs and four or five toes on their rear legs.

The family Plethodontidae, commonly named Lungless Salamanders, is the biggest family of salamanders, with more than 370 species spread across the Americas, southern Europe, and Korea (the only Plethodontidae in Korea was discovered only in 2005).

2022年8月17日 · They found that lungless salamanders begin developing lungs as embryos in much the same way as species with lungs develop them. The researchers then used in situ hybridization and RNA-sequencing to show that the structure that forms during lungless salamander embryonic development resembles a lung not just morphologically, but also in …

These are diverse organisms that include the smallest and nearly the largest terrestrial salamanders. All are lungless and breathe through their skin. All have four limbs and a tail, but some are permanently larval and some of these are …

Lungless Salamanders. Kingdom. Animalia. Location in Taxonomic Tree . Order. Caudata. Family. Plethodontidae. Identification Numbers. TSN: 173631. Geography. Launch Interactive Map. Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people.

The most species-rich family of salamanders, the Plethodontidae or lungless salamanders, includes many species that occur and breed in and along streams and rivers. Many plethodontids breed in such environments in the fall and spring, laying their eggs under rocks and logs within the stream channel.

This lungless trait underscores their ecological adaptability and sets them apart in the world of amphibians. They boast slender bodies, extended tails, and adhesive toes equipped with specialized pads, enabling them to scale trees and navigate vertical surfaces effortlessly.