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Salamanders are a group of amphibians typically characterized by their lizard-like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body, and the presence of a tail in both larvae and adults. All ten extant salamander families are grouped together under the order Urodela from the group Caudata. [2]
The seepage salamander is a very small and slender salamander, ranging from 4.4–5.7 cm (1.75–2.25 in). The adults possess vomerine teeth. [2] The tail is terete and rounded. The seepage salamander has a pale dorsal stripe, with a wide, wavy to almost straight shape, and ranging in color from yellow or tan to reddish brown. [4]
Adult lungless salamanders have four limbs, with four toes on the fore limbs, and usually with five on the hind limbs. Within many species, mating and reproduction occur solely on land. Accordingly, many species also lack an aquatic larval stage, a phenomenon known as direct development in which the offspring hatch as fully-formed, miniature ...
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).
A sub-adult wandering salamander. The wandering salamander is a long, slender salamander that grows to a snout-vent length of approximately 80 millimetres (3.1 in) and a total length of 130 millimetres (5.1 in). [6] [7] Its base color ranges from brown to light grey, with lighter bronze-grey mottling distributed across its dorsal surface ...
Adults spend most of their time in their burrows or under logs, as is the case with most mole salamanders. Juvenile marbled salamanders hatch early compared to most salamanders and gain a size advantage by feeding and growing for several months before the Jefferson salamanders and spotted salamanders hatch later in the spring.
Sirenidae, the sirens, are a family of neotenic aquatic salamanders. Family members have very small fore limbs and lack hind limbs altogether. [1] In one species, the skeleton in their fore limbs is made of only cartilage. In contrast to most other salamanders, they have external gills bunched together on the neck in both larval and adult
Plethodon is a genus of salamanders in the family Plethodontidae. They are commonly known as woodland salamanders. [2] All members of the genus are endemic to North America (Canada and the United States). [2] They have no aquatic larval stage. In some species, such as the red-backed salamander (Plethodon cinereus). [3] Young hatch in the adult ...