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Upper Midwest Environmental Sciences Center

Farm ponds as critical habitats for native amphibians
A Field Guide to Amphibian Larvae and Eggs of Minnesota, Wisconsin, and Iowa
Field guide contents

Eastern Newt Notopthalmus viridescens

Status: Wisconsin – Common
Minnesota – Common
Iowa – Endangered
Eastern Newt
Size at hatching, 7 - 9 mm; at metamorphosis, 21 - 38 mm total length

field mapThe Eastern Newt is widely distributed over the eastern United States and is found in ponds in its aquatic form. The female lays the eggs singly, attaching them to sticks, leaves, and stems in the pond. The eggs have a tough, rubbery jelly, are often oval, and have three envelopes with a sticky outer envelope that attaches to vegetation. The larvae are unique among our salamanders in that they lack costal grooves (Figure 3a) and have a dark stripe through the eye. They also have yellow spots along the dorsum.

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Page Last Modified: December 29, 2010