Amphibians
Long-tailed Salamander
Eurycea longicauda · also called long-tailed salamanders
Nearly two-thirds of a long-tailed salamander’s total length is, unsurprisingly, tail — a distinctively long, muscular structure marked with a bold black herringbone pattern that makes this species one of the easier North American salamanders to identify at a glance, whether found along a forest stream or lurking near a limestone cave entrance.
Overview
The long-tailed salamander, Eurycea longicauda, lives in deciduous forest, stream edges, and limestone cave entrances across the eastern and central United States. It hunts small invertebrates at night in damp leaf litter and near water, with a notably long tail that supports climbing over rocks and uneven terrain.
A tail built for both display and defence
Beyond its distinctive herringbone pattern, the tail’s extra length aids balance while climbing, and like other salamanders, it can be shed entirely to distract a predator, regrowing shorter over time. Eggs are laid in or near still or slow water, with larvae developing aquatically.
Status
Least Concern — reasonably common across suitable forest, stream, and cave-entrance habitat throughout its eastern and central US range.
Long-tailed Salamander: common questions
How long is the long-tailed salamander's tail compared with its body?
The tail can make up close to two-thirds of the salamander's entire total body length, a notably long proportion compared with many other similarly sized North American salamander species, making it one of the clearest and most immediately noticeable physical features used to help identify the species in the field.
What does the herringbone pattern on the tail actually look like?
The tail typically displays a series of vertical black bars or chevron-shaped markings arranged in a repeating pattern along a yellow or orange background, creating an overall herringbone-like effect that, combined with the tail's unusual length, is one of the more distinctive and reliable features distinguishing this species from several similar-looking salamander relatives found in overlapping habitat.
Why is the long-tailed salamander sometimes found near cave entrances?
The twilight zones near limestone cave entrances offer the cool, consistently humid conditions that this lungless-adjacent, moisture-dependent species requires, in addition to the more typical forest floor and stream-edge habitat it also occupies, making cave entrance environments a suitable and sometimes favoured additional habitat type within parts of its range.
Does the long tail serve any purpose beyond identification?
Yes, the unusually long, muscular tail provides additional balance and support that helps the salamander climb over rocks, logs, and other uneven terrain more effectively than a proportionally shorter tail would allow, supporting the species' semi-climbing habits in the rocky stream-edge and cave-associated habitat it often occupies.