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A sexually mature adult axolotl, at age 18–27 months, ranges in length from 15 to 45 cm (6 to 18 in), although a size close to 23 cm (9 in) is most common and greater than 30 cm (12 in) is rare. Axolotls possess features typical of salamander larvae, including external gills and a caudal fin extending from behind the head to the vent.
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]
While Batrachoseps major is a small salamander, it is larger than most other Batrachoseps slender salamanders. Adults are 3.2–5.9 centimetres (1.3–2.3 in) in length and have 17-21 costal grooves. [3] Like other Batrachoseps, B. major has only four toes on its hind feet. Color is variable, but individuals are usually some form of gray.
The western waterdog (Necturus beyeri) [2] is a species of aquatic salamander in the family Proteidae. ... Adults are 6 to 8.5 inches (15 to 22 cm) in length. It is ...
The cave salamander or spotted-tail salamander (Eurycea lucifuga) is a species of brook salamander in the family Plethodontidae. [2] It is well known for living in and around caves in the southeast United States. Adult cave salamanders are bright orange with black spots.
The northern two-lined salamander is a small salamander, with adults ranging from 65–120 mm in total length. [3] This salamander is yellow or yellowish-brown, with two black stripes running down the back which tends to break up after the base of the tail. The flanks are mottled grayish or brown. [4] The belly is pale yellowish, nearly ...
The limestone salamander has a flattened body, head, webbed toes, and a short tail. It is typically 5.0-7.5 cm in length. Adults are brownish with a pale ventral surface; the male has oval-shaped mental gland. The species was originally thought to be life-birthing, [2] but is now known to lay eggs. Young hatch in the egg and emerge fully formed ...
Plethodon elongatus is a medium-sized, slender salamander. Adults are 6–7.5 cm (2.4–3.0 in) from snout to vent, and 11–15 cm (4.3–5.9 in) in total length. Limbs are relatively short; toes are short and slightly webbed. Dorsal coloration is dark brown or black.