Oedipina uniformis
Common Worm Salamander, Costa Rican Worm Salamander
Subgenus: Oedipina
family: Plethodontidae
subfamily: Hemidactyliinae

© 2014 Dr. Joachim Nerz (1 of 16)
Conservation Status (definitions)
IUCN (Red List) Status Near Threatened (NT)
Other International Status None
National Status None
Regional Status None



View distribution map using BerkeleyMapper.

From the IUCN Red List Species Account:


Range Description

This species occurs from Volcán Tenorio, south through the cordilleras and Meseta Central to the Panama frontier, at 750-2,150m asl, in Costa Rica (Savage 2002). Its presence in Panama has not been confirmed.

Habitat and Ecology

It inhabits humid premontane and lower montane forest. It has been found living in leaf-litter, under decaying logs, and in moss banks. It has also been found in pastures, gardens and even cities and can withstand significant habitat modification. It breeds by direct development and is not dependent upon water.


It is still a regularly seen species. However, population declines have been noted in parts of the species range including Monteverde and Cascajal; although reduced populations remain at these localities. The reasons for these declines is unclear.

Population Trend


Major Threats

The species is generally not threatened by habitat loss. The reasons behind the population decline in some populations are not known.

Conservation Actions

It occurs in several protected areas, including Volcán Irazú, Volcán Turrialba, Parque Nacional Tapantí, Volcán Poás, Monteverde (at least formerly), and Volcán Tenorio. Further research is needed to determine the causes of the decline in undisturbed habitats, such as at Monteverde.

Red List Status

Near Threatened (NT)


Listed as Near Threatened because this species is in significant decline (but at a rate of less than 30% over ten years) resulting from unknown causes that require further investigation.


Wake, D., Savage, J. & Bolaños, F. 2008. Oedipina uniformis. The IUCN Red List of Threatened Species 2008: e.T59327A11918239. .Downloaded on 21 February 2019


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