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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.
A newt is a salamander in the subfamily Pleurodelinae. The terrestrial juvenile phase is called an eft. Unlike other members of the family Salamandridae, newts are semiaquatic, alternating between aquatic and terrestrial habitats. Not all aquatic salamanders are considered newts, however.
Eastern newts have a lifespan of about 8–10 years in the wild, but some individuals have been known to live up to 15 years. [8] Eastern newts have three stages of life: (1) the aquatic larva or tadpole, (2) the red eft or terrestrial juvenile stage, and (3) the aquatic adult.
This newt can reach a length of 20 cm (7.9 in). The tongue is small and is free on the sides and only slightly towards its base. The teeth on the palate are in two oblique rows that meet at the front of the mouth. The skull has a thick, bony fronto-squamosal arch, a feature of all salamanders. [2]
Print/export Download as PDF ... Central newt: Notophthalmus viridescens: ... Checklist of Amphibian Species and Identification Guide; Minnesota Amphibian and Reptile ...
The spotted salamander is about 15–25 cm (5.9–9.8 in) long (tail included), [7]: 76 with females generally being larger than males. [8] It is stout, like most mole salamanders, and has a wide snout. [3] The spotted salamander's main color is black, but can sometimes be a bluish-black, dark gray, dark green, or even dark brown.
The male red-bellied newt often has a dark, broad coloring across the vent, while females do not. [3] Breeding males develop smooth skin and a flattened tail. The red-bellied newt can be distinguished from other coastal newts by its red belly and a lack of yellow in its eyes.
Neurergus is a genus of salamanders, more specifically newts, in the family Salamandridae.They are found in the Middle East (predominantly in Turkey and Iran), and are kept and bred in captivity for their bright colors.