Eurycea cirrigera
Silhouette: Andy Wilson · PhyloPic
In 3 days ~20% in a week ~40%
The southern two-lined salamander (Eurycea cirrigera) is a species of salamander in the family Plethodontidae, endemic to the United States. Its natural habitats are temperate forests, rivers, intermittent rivers, swamps, and freshwater springs.
The southern two-lined salamander is a small thin salamander, distinguished by the two lines running down the lateral portion of its body. The salamander is deep-light brown and fairly small, growing up to 6.5–12 cm in length. The species has 14 costal grooves between its limbs. Southern two-lined salamanders experience female-based sexual dimorphism. The key difference between the Southern two lined salamander from the Northern salamander is that the black lines run all the way down to the tail. When the salamander reaches sexual maturity males begin to show Cirri and enlarged jaw muscles.
The southern two-lined salamander had two morphs, one of these, the Brownback salamander is now its own species. The other morphs, the Cole Springs Phenotype is found in other two lined salamanders but in the southern two-lined salamander is limited to northern Alabama. This morph results in an individual being significantly larger and darker... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Southern Two-lined Salamander sighting in Shenandoah National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 20th most-seen of the 20 amphibians we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
April, June–August and October
In those months about 10% of wildlife watchers report a Southern Two-lined Salamander in Shenandoah National Park on a given day, against under 5% in May, September and November–March, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Southern Two-lined Salamander sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 2 parks where we can rate Southern Two-lined Salamander sightings, Shenandoah National Park has the highest daily chance: about 10%. Next come Great Smoky Mountains National Park (United States, about 10%).
Same genus: Eurycea
The closest relatives of the Southern Two-lined Salamander that you can see in Shenandoah National Park (genus Eurycea, Brook Salamanders) are Northern Two-lined Salamander (about 40%) and Long-tailed Salamander (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Southern Two-lined Salamander is recorded against all the amphibians logged in Shenandoah National Park (8 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
