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AMPHIBIANS » SALAMANDERS
Eastern Newt

Eastern Newt
Notophthalmus viridescens

Some people mistake the Eastern Newt for two different species because it has a complex life cycle that features two distinct forms. Although adults are aquatic, the species can go through a juvenile terrestrial phase (during this period they are called efts) and be found far from water. Once it reaches adulthood its body adapts to its new watery life by elongating, developing smoother skin, becoming counter-shaded (dark above and light below) and changing from a round to keel-shaped tail.

Description: In the eft stage the Eastern Newt's body is blaring orange, bright to dull red or brownish with lighter spots encircled by black. It has small black specks scattered along the sides and back, and a dry, granular skin. In the adult form it is olive green above with regularly spaced orange spots encircled by black on the back, and scattered small black specks along the back and sides.

Similar Species: None

Habitat: Eastern Newts live in both deciduous and coniferous forests. Immature and larvae and adults live in small bodies of water such as ponds, lakes, ditches and marshes that have muddy bottoms. Adults can survive on land if their water habitat dries up. The juvenile eft stage lives in lakeshore and wooded habitats, sometimes far from water.

Diet: The aquatic larvae eat small invertebrates such as water fleas, snails, and beetle larvae; the terrestrial efts consume small invertebrate found in humus and leaf litter, including snails, spring tails, and soil mites; the adult newts don't have a specialized diet, eating any small invertebrate that they can find.

Breeding information: Breeding begins in late winter and lasts through early spring. Females produce between 200 and 400 eggs. It takes on average three years for larvae to reach the adult stage.

Status in Tennessee: Common though population declines have been noted throughout their range, perhaps due to habitat degradation.

Fun Facts:

  • The Eastern Newt can locate its home pond using its sense of smell and an internal, light-dependent compass
  • Eastern Newts frequently live in ponds with fish because toxic skin secretions afford them a degree of protection

Best places to see in Tennessee: Found statewide.

For more information:

The Salamanders of Tennessee web site

Animal Diversity Web - The University of Michigan Museum of Zoology

Sources:

Conant, R. and Collins, J. 1998. Peterson Field Guides: Reptiles and Amphibians (Eastern/Central North America). Houghton Mifflin Company, New York. 616pp.