Amphibians
White-Spotted Slimy Salamander
Plethodon cylindraceus · also called white-spotted slimy salamanders
Beneath a rotting log in the southern Appalachian Mountains, a white-spotted slimy salamander sits nearly indistinguishable from a dozen other salamander species that once shared its name, until genetic study revealed each population as its own genuinely distinct species.
Overview
The white-spotted slimy salamander, Plethodon cylindraceus, is a lungless amphibian native to forested mountain habitat across parts of the southern Appalachian Mountains. Its recent split from the broader slimy salamander species complex, sticky defensive skin secretion, and glossy black body flecked with white make it a representative example of just how much hidden species diversity modern genetic study has revealed within a single old, familiar name.
One species that turned out to be many
What field biologists spent decades treating as a single widespread slimy salamander turned out, under genetic scrutiny, to be a whole collection of separate species, with the white-spotted slimy salamander representing just one of the southern Appalachian pieces of that puzzle.
Status
Least Concern — widespread and stable across suitable forested mountain habitat throughout the southern Appalachian Mountains.
White-Spotted Slimy Salamander: common questions
Why was the white-spotted slimy salamander only recently recognised as its own species?
This species was formally split off from a much broader, historically defined slimy salamander complex following genetic studies that revealed the group actually contained more than a dozen distinct species across the eastern United States, each looking extremely similar to the others despite being genetically separate.
How can you identify a white-spotted slimy salamander?
Look for scattered white or brassy flecks across an otherwise glossy black body, a pattern shared broadly across the wider slimy salamander group, meaning that confirming the specific species often depends more on knowing the exact geographic location than on visual appearance alone.
Why is it called the slimy salamander?
This species produces a notably sticky skin secretion when handled or threatened, a defence mechanism shared with other members of the slimy salamander group that can be genuinely difficult to wash off the hands and is thought to deter many potential predators from attempting a repeat attack.
Where does the white-spotted slimy salamander live?
This species is native to forested mountain habitat across parts of the southern Appalachian Mountains, a range that helps distinguish it geographically from other closely related species recently split from the same broader slimy salamander complex.