AnAge entry for Notophthalmus viridescens

Classification (HAGRID: 00192)

Kingdom: Animalia
    Phylum: Chordata
        Class: Amphibia (Taxon entry)
            Order: Caudata
                Family: Salamandridae
                    Genus: Notophthalmus
Notophthalmus viridescens
Common name
Eastern newt
Notophthalmus viridescens viridescens, Triturus viridescens, Diemictylus viridescens, Diemictylus viridescens viridescens, Notophthalmus viridescens dorsalis, Salamandra dorsalis, Notophthalmus viridescens louisianensis, Notophthalmus viridescens piaropicola, Diemyctylus viridescens louisianensis, Diemictylus viridescens piaropicola, Salamandra americana, Triturus miniatus, Salamandra symmetrica, Salamandra punctatissima, Salamandra greeni, Salamandra millepunctata, Salamandra stellio, Triton millepunctatus, Salamandra coccinea, Triton dorsalis, Triton symetricus, Tristella symmetrica, Molge ocellata, Notophthalmus miniatus, Diemyctylus viridescens, Notophthalma viridescens, Triton viridescens, Salamandra ventralis, Molge viridescens, Diemyctylus minutus, Triturus dorsalis, Triturus louisianensis, Diemyctylus minatus miniatus, Diemyctylus minatus viridescens, Diemyctylus viridescens viridescens, Diemyctylus viridescens vittatus, Notophthalmus viridescens vittatus, Triturus viridescens symmetrica, Diemictylus viridescens louisianensis, Diemictylus viridescens dorsalis, Triturus viridescens louisianae, Triturus viridescens louisianensis, Triturus viridescens viridescens, Triturus viridescens dorsalis, Diemictylus viridescens evergladensis

Lifespan, ageing, and relevant traits

Maximum longevity
25 years (captivity)
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Sample size
Data quality

As in other similar species, these newts feature extensive regeneration capabilities [0483]. They can live up to 15 years in the wild [0749]. One specimen kept as a pet was still alive when over 25 years of age (website feedback), which is a plausible anecdote. A female reportedly lived for 15 years in captivity [0528]. In some populations, sexual maturity can be reached in 1 year, but it usually takes at least 3 years. Some data suggests males may reach sexual maturity slightly sooner than females [0749].

Life history traits (averages)

Female sexual maturity
2,000 days
Male sexual maturity
2,000 days
Clutch size
Adult weight


No information on metabolism is available.


External Resources

Integrated Taxonomic Information System
ITIS 173615
Animal Diversity Web
ADW account
Encyclopaedia of Life
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NCBI Taxonomy
Taxonomy ID 8316
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Ageing Literature
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Google Image search
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