Amphibians
Ozark Zigzag Salamander
Plethodon angusticlavius · also called Ozark zigzag salamanders
Flip over a moss-covered rock in the Ozark woods and an Ozark zigzag salamander might dart from the exposed underside, breathing entirely through skin so thin the animal has no use for lungs at all.
Overview
The Ozark zigzag salamander, Plethodon angusticlavius, is a small, lungless woodland salamander confined to oak-hickory forest and limestone glade habitat across the Ozark Plateau of Missouri, Arkansas, and Oklahoma. Its lungless respiration, direct terrestrial development, and restricted regional range make it a genuinely distinctive member of North America’s most diverse salamander family.
A life with no water required
While many salamanders need a pond for their larvae, the Ozark zigzag salamander skips water entirely, laying eggs on land that hatch directly into miniature adults, fully independent from the moment they emerge.
Status
Least Concern — locally common across suitable habitat within its limited Ozark Plateau range.
Ozark Zigzag Salamander: common questions
How does the Ozark zigzag salamander breathe without lungs?
The Ozark zigzag salamander has no lungs at all, a trait shared by every member of the lungless salamander family, and instead absorbs oxygen directly through its moist skin and the lining of its mouth, which is why the species depends so heavily on consistently damp, humid microhabitats.
Where does the Ozark zigzag salamander live?
This species is found only within the Ozark Plateau region of Missouri, Arkansas, and Oklahoma, favouring moist oak-hickory forest and limestone-influenced glade edges where it shelters under rocks and logs during the day.
Does the Ozark zigzag salamander have an aquatic larval stage like a frog?
No, the Ozark zigzag salamander lays its eggs in moist terrestrial sites such as rock crevices rather than in water, and it skips the aquatic larval stage entirely, with young hatching directly as fully formed miniature adults.
How can you tell the Ozark zigzag salamander from other zigzag salamanders?
The clearest distinction is geography, since the Ozark zigzag salamander is confined to the Ozark Plateau of Missouri, Arkansas, and Oklahoma, a range that does not overlap with several of its close relatives, though the wavy, irregular dorsal stripe common to the group can also vary subtly in color and shape between species.