Allen's Worm Salamander

Allen's Worm Salamander

Oedipina alleni

Silhouette: PhyloPic

LCLeast ConcernNTVUENCR
Daily sighting probability ~10% · With luck
at Carara National Park

In 3 days ~30% in a week ~50%

10 Verified sightings at Carara National Park From 2019 to 2026
10 In 1 park
June Best month
🌙 Nocturnal When it's spotted

About the Allen's Worm Salamander

Oedipina alleni, commonly known as Allen's worm salamander, is a species of salamander in the family Plethodontidae. The species is native to Central America. The specific name, alleni, is in honor of American botanist Paul Hamilton Allen (1911–1963).

Oedipina alleni is found in Costa Rica and Panama. The natural habitats of Oedipina alleni are subtropical or tropical moist lowland forests, plantations, rural gardens, and heavily degraded former forest. Oedipina alleni is threatened by habitat loss.

Taylor, E.H. (1954). "Additions to the known Herpetological Fauna of Costa Rica with Comments on other Species. No. I.". University of Kansas Science Bulletin. 36 (9): 597–639. (Oedipina alleni, new species, pp. 607–609, Figure 3 right). Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Carara National Park 🇨🇷 Costa Rica
~10%

More parks will be added in future updates.

Closest Relatives at Carara National Park

No species of the same family or order lives in Carara National Park, so these are its closest relatives here: other amphibians.

Before you go

What are the chances of seeing an Allen's Worm Salamander in Carara National Park?

With luck

About 10% of wildlife watchers report an Allen's Worm Salamander sighting in Carara National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 15th most-seen of the 22 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.

When is the best time to see an Allen's Worm Salamander in Carara National Park?

June

In that month about 30% of wildlife watchers report an Allen's Worm Salamander in Carara National Park on a given day, against under 5% in July and September–May, the lowest months. That is one of Carara National Park's wettest months, with about 580 mm of rain against 35 mm in February.

What time of day is best to see an Allen's Worm Salamander?

Between 7 and 10 pm

Across all the parks we cover, that three-hour window holds the most Allen's Worm Salamander sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.

Where else can you see an Allen's Worm Salamander?

Only Carara National Park, in our data

Carara National Park is the only park on Wallace's Line with enough records to rate Allen's Worm Salamander sightings: about 10% of wildlife watchers there report one on a given day.

Where does the Allen's Worm Salamander sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Allen's Worm Salamander is recorded against all the amphibians logged in Carara National Park (10 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.

← Back to Carara National Park